WO1981002085A1 - System for remote monitoring and data transmission over non-dedicated telephone lines - Google Patents

System for remote monitoring and data transmission over non-dedicated telephone lines Download PDF

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Publication number
WO1981002085A1
WO1981002085A1 PCT/US1980/001709 US8001709W WO8102085A1 WO 1981002085 A1 WO1981002085 A1 WO 1981002085A1 US 8001709 W US8001709 W US 8001709W WO 8102085 A1 WO8102085 A1 WO 8102085A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
selection
remote monitoring
monitoring unit
telephone
Prior art date
Application number
PCT/US1980/001709
Other languages
French (fr)
Inventor
W Asip
M Bartha
Original Assignee
W Asip
M Bartha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22328669&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1981002085(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by W Asip, M Bartha filed Critical W Asip
Priority to AU67739/81A priority Critical patent/AU6773981A/en
Publication of WO1981002085A1 publication Critical patent/WO1981002085A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/002—Telephonic communication systems specially adapted for combination with other electrical systems with telemetering systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17327—Transmission or handling of upstream communications with deferred transmission or handling of upstream communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N2007/17381—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal the upstream transmission being initiated by the user terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N2007/1739—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal the upstream communication being transmitted via a separate link, e.g. telephone line

Definitions

  • This invention implements a network for remotely monitor ⁇ ing individual Subscriber use of a service.
  • Information relating to the time of day and duration of such use, as well as data relating to the specific character of the service accessed is retained in the monitoring unit until such time as contact is established with a Central Computer monitoring and billing facility.
  • the current embody ent of the invention is oriented toward use with cable television systems or over-the-air pay television scrambled systems and permits the construction of a "Pay Per Play" Program network.
  • the remote monitoring unit is installed in the individ ⁇ ual Subscriber's home.
  • a conventional Cable TV converter/program selector modified to provide selection information to the remote monitoring unit processor, is used by the Subscriber to access channels of programming.
  • the processor stores the ti e-of-day when a particular channel is accessed in its data memory. Whenever a change in the channel being viewed occurs (i.e. A New Selection Is Made), this new time and channel information is also stored in the data memory. A list is thus maintained in the monitoring unit indicating the times and channels accessed by the Subscriber.
  • the processor maintains, via programmed software routines, a 24 Hr. clock which is used to generate the time information.
  • the number of channels monitored as well as the number of selection data packets which can be retained is theoretically quite large and is limited by purely practical manufacturing considerations.
  • the remote monitoring unit is connected in parallel across the Subscribers' home telephone line by the means of a telephone interface unit.
  • the processor attempts to communicate its stored data to the Central Office Computer, by automatically dialing the central office number.
  • a stream of ASCII encoded alphanumeric data is transmitted by the remote monitor ⁇ ing unit as a sequence of frequency shift keyed audio tones within the voice bandwidth limits of the conven ⁇ tional telephone system.
  • the data transmitted uniquely identifies the monitoring unit, and contains the list of subscriber program access data maintained in the data memory.
  • the remote monitoring unit receives information from the Central Office Computer as to the accuracy of the transmission as well as control data relating to the Subscriber's continued use of the service.
  • the Central Computer can terminate service by sending a message directing the remote monitoring unit to turn off the program access device.
  • this system constitutes a sophisticated data collection, storage and transmission facility capable of bi-directional communication via the non-dedicated telephone network.
  • Fig. I is a functional block diagram of the invention.
  • Fig. 2 is a more detailed diagram of some of the elements of Fig. I.
  • Fig. I there is shown a diagram of the preferred embodiment of the invention as a "Pay Per Play" T.V. Subscriber selection monitoring and data transmission ' remote monitoring Unit 19.
  • the program selector and access Unit 1 feeds channel selection information to the remote monitoring Unit 19 via four signal lines 2.
  • the channel selection information is formatted as binary TTL logic levels and is periodically scanned under program control by Processor 6 through control Interface 5.
  • Processor 6 is programmed via software routines* permanently stored in Program Memory 4 to periodically compare the current state of the selection Data Lines 2 with the last selection made by the Subscriber, which is stored in Data Memory 5. In the event of a change in selection has occurred the Processor 6 sets a flag stored in Data Memory 5 and enters a software timing loop. If the Subscriber does not change his most recent selection within one minute the selection will be stored in Data Memory 5 as billing data. If the selection is changed before one minute expires the new selection becomes the reference for the timing loop and the previous selection is discarded. This imple ⁇ ments a "grace period" for previewing a selection and possibly changing it before billing data is stored.
  • a 24 hour real time clock is maintained by Processor 6 by means of a software routine stored in Program Memory 4.
  • Processor 6 is a microprocessor chip, typically a 6502 or similar device.
  • a 1 MHz crystal 20, in conjuction with a conventional oscillator circuit 21, generates the necessary clock pulses for Processor 6.
  • the 1 MHz pulses are also fed to Binary Counter 22 which is reset periodically by Logic Decoding Network 23 to generate a 1600 Hz Signal 24.
  • Signal 24 is the receive and transmit clock for communications interface circuit 8.
  • Signal 24 is also fed to Binary Counter 25 which divides by 16 and produces a 100Hz clock pulse 26. This pulse train 26 is applied to the interrupt input of Processor 6. Hence every 10 ms Processor 6 goes
  • Data Memory 5 is a 128 location by 8 bit wide Ram Memory. Of these locations 32 are reserved for program work space leaving 96 available for subscriber selection data. A selection is stored as two bytes of time data, hours and minutes, and 1 byte of channel selection identification. Thus 32 different selections can be stored before Data Memory is consumed.
  • the four lines used for Selection Information 2 limits the maximum number of selections currently recognized by the system to 16. It is readily apparent that by adding additional circuit devices the above restrictions are eliminated and the only restrictions to the number of data points and events which can be monitored and stored, are practical considerations of manufacture and specific application need.
  • the Remote Monitoring Unit 19 attempts to transmit the subscriber selection data to the Central Office Computer 14 over the subscribers home telephone line 13.
  • the module which permits the Processor 6 to communicate over the home Telephone Line 13 is the Telephone' Interface 12.
  • the Telephone Interface 12 generates a Signal 73 which indicates the switch hook status, that is, whether the phone is in use or free.
  • _0VP1_ permits the Processor 6 to access the telephone line and to generate dial pulses.
  • the telephone interface 12 provides the necessary isolation and audio conditioning to permit the connection of the Remote Monitoring Unit to a conventional subscriber telephone network.
  • the Processor 6 When initiating a data exchange with the Central Office Computer 14, the Processor 6 checks to see if the home Telephone Line 13 is free by inputting switch hook status data from Telephone Interface Unit 12 via Control Interface 5. If the line is busy the Processor 6 con ⁇ tinues to check the line status at random intervals until the line is free. At this point the Processor 6 outputs a logic level on Line Seize input 74 causing the telephone interface unit to place an impedance on the Telephone Line 13 simulating the start of a call and requesting a dial tone. The Processor 6 waits for 3 seconds and assumes that a dial tone is present on the line. At that point the Processor 6 enters an auto ⁇ dial subroutine stored.,in-.Program Memory 4.
  • This sub ⁇ routine causes the Processor 6 to pulse the Line Seize data line 74, causing the Telephone Interface 12 to remove and replace the impedance across the Telephone Line 13 simulating the dialing of a conventional tele ⁇ phone.
  • the telephone number of the central office computer 14 is programmed in Program Memory 4.
  • the autodial software routine generates the necessary mark- space timing to dial this pre-programmed number.
  • An automatic answering unit is provided at the Central Office Computer site 14 which picks up the line automatically and signals the successful establish ⁇ ing of the call by transmitting a 1000 Hz tone for .5 seconds over Telephone Line 13. This tone is fed via
  • Processor 6 assumes an unsuccessful dialing and releases Telephone Line 13, and attempts to redial a random interval later.
  • the Processor 6 proceeds to transmit the selection data in Data Memory 5. Transmission of data is accomplished under software control via routines programmed in Program Memory 4, by sequentially loading data bytes into Communications Interface 8.
  • the Transmit Data output 18 is a serial pulse train which causes Tone Generator 16 to produce an FSK modulated audio tone within the frequency pass- band of a voice grade telephone line which is fed via audio line 10 to telephone interface 12 and out over telephone line 13 to central computer 14.
  • the message transmitted by Remote Monitoring Unit 19 to bhe Central Office Computer 14 consists of a number uniquely identifying the remote monitoring unit followed by a sequential listing of all selection data stored in memory prior to the current transmission and after the previous transmission.
  • the selection data sent consists of time of day and a channel number for each selection.
  • the Remote Monitoring Unit 19 When the transmission is complete the Remote Monitoring Unit 19 expects a return message from the Central Office Computer 14. The central computer scans the received message for gross errors or possible trans ⁇ mission failure. If no errors are found the Central Office Computer 14 signals the Remote Monitoring Unit 19 that the data was successfully received and both the Central Office Computer 14 and Remote Monitoring Unit 19 release their respective telephone connections. If an error in transmission does occur the Remote Monitoring Unit 19 is requested to retransmit.
  • the selection data is posted by the Central Office Computer 14 to the individual Subscriber's account. If the account is in arrears it is desirable to restrict the Subscriber's access to the premium channel.
  • the Central Office Computer 14 in its return message can direct the Remote Monitoring Unit 19 to turn off the access device. If Processor 6, on scanning, received data detects a "turn off" message, it outputs an appro ⁇ priate signal via Control Interface 5 over Control Line 3 to disable Access Unit 1.
  • Transmission of data from the Central Office Compu ⁇ ter 14 to Remote Monitoring Unit 19 is also via FS audio tones over Telephone Line 13.
  • the Telephone Interface 12 feeds the Audio 10 to Tone Detector 16 which changes the modulated signal to binary logic levels which are input to Communications Interface 8 via Receive Data line 17.
  • Processor 6 periodically scans Communications Interface 8 in the receive mode to accept data until the communication is complete.

Abstract

A system, consisting of a plurality of Remote Monitoring Units (19) and a Central Computer (14), for monitoring a subscriber's selection of a Program Source. Each Remote Monitoring Unit has a microprocessor (6), associated Program and Data Memory (4, 5), Control and Interface circuitry (5, 8) and a software implemented real-time-clock (6). The time of day and channel identification of program selected is recorded in memory. Communication with the central office computer is initiated by the remote monitoring unit at preprogrammed intervals over the conventional telephone network using the individual Subscriber's telephone line accessed via a telephone interface device (12). Data sent to the computer consists of a unique identity code for each monitoring unit, channels selected and time of selection. The remote monitoring unit can retransmit the stored data in the event of an unsuccessful contact, and disable the program selector and access device on command.

Description

Description
System for Remote Monitoring and Data Transmission Over Non-Dedicated Telephone Lines.
General Description of the Invention:
This invention implements a network for remotely monitor¬ ing individual Subscriber use of a service. Information relating to the time of day and duration of such use, as well as data relating to the specific character of the service accessed is retained in the monitoring unit until such time as contact is established with a Central Computer monitoring and billing facility. The current embody ent of the invention is oriented toward use with cable television systems or over-the-air pay television scrambled systems and permits the construction of a "Pay Per Play" Program network.
The remote monitoring unit is installed in the individ¬ ual Subscriber's home. A conventional Cable TV converter/program selector, modified to provide selection information to the remote monitoring unit processor, is used by the Subscriber to access channels of programming. The processor stores the ti e-of-day when a particular channel is accessed in its data memory. Whenever a change in the channel being viewed occurs (i.e. A New Selection Is Made), this new time and channel information is also stored in the data memory. A list is thus maintained in the monitoring unit indicating the times and channels accessed by the Subscriber. The processor maintains, via programmed software routines, a 24 Hr. clock which is used to generate the time information. The number of channels monitored as well as the number of selection data packets which can be retained is theoretically quite large and is limited by purely practical manufacturing considerations.
The remote monitoring unit is connected in parallel across the Subscribers' home telephone line by the means of a telephone interface unit. At pre-programmed inter¬ vals the processor attempts to communicate its stored data to the Central Office Computer, by automatically dialing the central office number. On contact with the Central Office Computer a stream of ASCII encoded alphanumeric data is transmitted by the remote monitor¬ ing unit as a sequence of frequency shift keyed audio tones within the voice bandwidth limits of the conven¬ tional telephone system.
The data transmitted uniquely identifies the monitoring unit, and contains the list of subscriber program access data maintained in the data memory. On successful completion of a data transmission the remote monitoring unit receives information from the Central Office Computer as to the accuracy of the transmission as well as control data relating to the Subscriber's continued use of the service. In the event of unpaid accounts or for other causes, the Central Computer can terminate service by sending a message directing the remote monitoring unit to turn off the program access device.
It can be readily perceived that this system constitutes a sophisticated data collection, storage and transmission facility capable of bi-directional communication via the non-dedicated telephone network.
Oft. The capability of the remote monitoring unit's processor to perform complex data gathering and process¬ ing is characterized solely by the programs stored in program memory. The uses of such a system are not restricted to Pay-TV Applications but can also include:
*
-Remote monitoring and reading of water, gas and electric meters. -Home security and surveillance. -Access to centralized public database networks. -Selection of products or services in the home to be processed by a central sales or service facility for direct home delivery and subsequent billing. -Electronic funds transfer. -Opinion polling and preference sampling. Current Systems for implementing any of the above functions, either via a Cable Television System, or Network of CATV Systems, or over the non-dedicated Telephone Network, lack the simplicity, programmable versatility and intelligence, and functional expand¬ ability of this invention.
Description of the Drawings:
Fig. I is a functional block diagram of the invention. Fig. 2 is a more detailed diagram of some of the elements of Fig. I.
Detailed Description:
Referring to Fig. I there is shown a diagram of the preferred embodiment of the invention as a "Pay Per Play" T.V. Subscriber selection monitoring and data transmission' remote monitoring Unit 19. The program selector and access Unit 1 feeds channel selection information to the remote monitoring Unit 19 via four signal lines 2. The channel selection information is formatted as binary TTL logic levels and is periodically scanned under program control by Processor 6 through control Interface 5.
Processor 6 is programmed via software routines* permanently stored in Program Memory 4 to periodically compare the current state of the selection Data Lines 2 with the last selection made by the Subscriber, which is stored in Data Memory 5. In the event of a change in selection has occurred the Processor 6 sets a flag stored in Data Memory 5 and enters a software timing loop. If the Subscriber does not change his most recent selection within one minute the selection will be stored in Data Memory 5 as billing data. If the selection is changed before one minute expires the new selection becomes the reference for the timing loop and the previous selection is discarded. This imple¬ ments a "grace period" for previewing a selection and possibly changing it before billing data is stored.
A 24 hour real time clock is maintained by Processor 6 by means of a software routine stored in Program Memory 4. Processor 6 is a microprocessor chip, typically a 6502 or similar device. A 1 MHz crystal 20, in conjuction with a conventional oscillator circuit 21, generates the necessary clock pulses for Processor 6. The 1 MHz pulses are also fed to Binary Counter 22 which is reset periodically by Logic Decoding Network 23 to generate a 1600 Hz Signal 24. Signal 24 is the receive and transmit clock for communications interface circuit 8. Signal 24 is also fed to Binary Counter 25 which divides by 16 and produces a 100Hz clock pulse 26. This pulse train 26 is applied to the interrupt input of Processor 6. Hence every 10 ms Processor 6 goes
^;
OY. into an interrupt service routine defined by the soft¬ ware in Program Memory 4.
During this interrupt routine the memory locations in Data Memory 5 dedicated to retaining current time are updated. During the interrupt routine Processor 6 also services program Selection Data 2, Communications Interface 8, and Telephone Interface 12, if any of these functions are currently active.
Data Memory 5 is a 128 location by 8 bit wide Ram Memory. Of these locations 32 are reserved for program work space leaving 96 available for subscriber selection data. A selection is stored as two bytes of time data, hours and minutes, and 1 byte of channel selection identification. Thus 32 different selections can be stored before Data Memory is consumed. The four lines used for Selection Information 2 limits the maximum number of selections currently recognized by the system to 16. It is readily apparent that by adding additional circuit devices the above restrictions are eliminated and the only restrictions to the number of data points and events which can be monitored and stored, are practical considerations of manufacture and specific application need.
At intervals predetermined by the software the Remote Monitoring Unit 19 attempts to transmit the subscriber selection data to the Central Office Computer 14 over the subscribers home telephone line 13. The module which permits the Processor 6 to communicate over the home Telephone Line 13 is the Telephone' Interface 12.
The Telephone Interface 12 generates a Signal 73 which indicates the switch hook status, that is, whether the phone is in use or free. The Line Seize Signal 74
_0VP1_ permits the Processor 6 to access the telephone line and to generate dial pulses. In addition, the telephone interface 12 provides the necessary isolation and audio conditioning to permit the connection of the Remote Monitoring Unit to a conventional subscriber telephone network.
When initiating a data exchange with the Central Office Computer 14, the Processor 6 checks to see if the home Telephone Line 13 is free by inputting switch hook status data from Telephone Interface Unit 12 via Control Interface 5. If the line is busy the Processor 6 con¬ tinues to check the line status at random intervals until the line is free. At this point the Processor 6 outputs a logic level on Line Seize input 74 causing the telephone interface unit to place an impedance on the Telephone Line 13 simulating the start of a call and requesting a dial tone. The Processor 6 waits for 3 seconds and assumes that a dial tone is present on the line. At that point the Processor 6 enters an auto¬ dial subroutine stored.,in-.Program Memory 4. This sub¬ routine causes the Processor 6 to pulse the Line Seize data line 74, causing the Telephone Interface 12 to remove and replace the impedance across the Telephone Line 13 simulating the dialing of a conventional tele¬ phone. The telephone number of the central office computer 14 is programmed in Program Memory 4. The autodial software routine generates the necessary mark- space timing to dial this pre-programmed number.
An automatic answering unit is provided at the Central Office Computer site 14 which picks up the line automatically and signals the successful establish¬ ing of the call by transmitting a 1000 Hz tone for .5 seconds over Telephone Line 13. This tone is fed via
O. Telephone Interface 12 over Audio Line 10 to Tone Generator and Detector module 16 which detects the tone and generated a logic level carrier detect signal 75. The Processor 6 checks Signal 75 via Contro-Interface 5.
If the return tone is not detected Processor 6 assumes an unsuccessful dialing and releases Telephone Line 13, and attempts to redial a random interval later.
If successful contact is established the Processor 6 proceeds to transmit the selection data in Data Memory 5. Transmission of data is accomplished under software control via routines programmed in Program Memory 4, by sequentially loading data bytes into Communications Interface 8. The Transmit Data output 18 is a serial pulse train which causes Tone Generator 16 to produce an FSK modulated audio tone within the frequency pass- band of a voice grade telephone line which is fed via audio line 10 to telephone interface 12 and out over telephone line 13 to central computer 14.
The message transmitted by Remote Monitoring Unit 19 to bhe Central Office Computer 14 consists of a number uniquely identifying the remote monitoring unit followed by a sequential listing of all selection data stored in memory prior to the current transmission and after the previous transmission. The selection data sent consists of time of day and a channel number for each selection.
When the transmission is complete the Remote Monitoring Unit 19 expects a return message from the Central Office Computer 14. The central computer scans the received message for gross errors or possible trans¬ mission failure. If no errors are found the Central Office Computer 14 signals the Remote Monitoring Unit 19 that the data was successfully received and both the Central Office Computer 14 and Remote Monitoring Unit 19 release their respective telephone connections. If an error in transmission does occur the Remote Monitoring Unit 19 is requested to retransmit.
The selection data is posted by the Central Office Computer 14 to the individual Subscriber's account. If the account is in arrears it is desirable to restrict the Subscriber's access to the premium channel. The Central Office Computer 14 in its return message can direct the Remote Monitoring Unit 19 to turn off the access device. If Processor 6, on scanning, received data detects a "turn off" message, it outputs an appro¬ priate signal via Control Interface 5 over Control Line 3 to disable Access Unit 1.
Transmission of data from the Central Office Compu¬ ter 14 to Remote Monitoring Unit 19 is also via FS audio tones over Telephone Line 13. The Telephone Interface 12 feeds the Audio 10 to Tone Detector 16 which changes the modulated signal to binary logic levels which are input to Communications Interface 8 via Receive Data line 17. Processor 6 periodically scans Communications Interface 8 in the receive mode to accept data until the communication is complete.
After a successful contact old selection data is cleared from memory in the Remote Monitoring Unit 19 and new selections are recorded until another contact occurs with the central computer.
It is readily apparent that certain modifications of the exemplary embodiment can be made to enhance performance without departing from the basic operating features of this invention. All such modifications are intended to be included within the scope of this invention.
O P

Claims

Claims
1. A monitoring device for direct electrical connection to a telephone line, which accepts inputs from a. tele¬ vision selection and access unit, which stores selection data and time of selection, which transmits selection data to a central billing facility automatically at periodic intervals over the telephone line, and which has the capability of disabling the access unit on remote command, said monitoring unit comprising:
Input lines for connection to a program selection/access device.
A processor under the control of programs stored in read only memory.
A date memory for storage of transient date.
An interface device permitting the processor to access input data and output control signals.
A communications device for formatting data for serial communication.
A tone generator and detector for changing binary logic level data to FSK audio and back.
A telephone interface for connection to the telephone line.
2. A monitoring device as in Claim 1 where the input lines comprise data relating to the use utilities services such as gas, water o electricity.
3. A monitoring device as in Claim 1 where the input lines are home security sensor status lines, such as proximity detectors, smoke detectors, and door and window switches.
4. A monitoring device as in Claim 1 where the input device is a set of buttons relating to opinions or responses to questions posed over broadcast media.
5. A monitoring device as in Claim 1 where the input means is a keyboard providing access to:
-A public database system over a television network or -A product or service selection network or -An electronic funds transfer network
PCT/US1980/001709 1980-01-04 1980-12-23 System for remote monitoring and data transmission over non-dedicated telephone lines WO1981002085A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU67739/81A AU6773981A (en) 1980-01-04 1980-12-23 System for remote monitoring and data transmission over non-dedicated telephone lines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/109,624 US4361851A (en) 1980-01-04 1980-01-04 System for remote monitoring and data transmission over non-dedicated telephone lines
US109624 1980-01-04

Publications (1)

Publication Number Publication Date
WO1981002085A1 true WO1981002085A1 (en) 1981-07-23

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US (1) US4361851A (en)
EP (1) EP0055252A1 (en)
WO (1) WO1981002085A1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050451A1 (en) * 1980-10-20 1982-04-28 Minnesota Mining And Manufacturing Company Alarm data concentration and gathering system
FR2516328A1 (en) * 1981-11-06 1983-05-13 Thomson Csf Mat Tel Data collection, storage and transmission system - uses multiplexer to allow transmission via telephone line to central processor through MODEM and interface
EP0117298A2 (en) * 1983-02-25 1984-09-05 TELENORMA Telefonbau und Normalzeit GmbH Control method for flexible working hours using a telephone
EP0177512A1 (en) * 1984-03-26 1986-04-16 A.C. Nielsen Company Preprogrammed over-the-air marketing research system
EP0212654A2 (en) * 1985-08-30 1987-03-04 AT&T Corp. Method and apparatus for disallowing the extension of a call through a network
EP0317082A1 (en) * 1987-11-20 1989-05-24 General Instrument Corporation Spontaneous reporting of remotely generated data
EP0363847A1 (en) * 1988-10-11 1990-04-18 A.C. Nielsen Company System for substituting stored video information for another video information
EP0390666A1 (en) * 1989-03-28 1990-10-03 Elf Antar France Monitoring system for industrial installations
US5012510A (en) * 1988-04-27 1991-04-30 Scientific Atlantic Inc. Dynamic callback technique
EP0602777A1 (en) * 1992-10-20 1994-06-22 Mita Industrial Co. Ltd. A terminal device management system and a method for detecting a failed terminal device using the system
GB2330229A (en) * 1997-10-07 1999-04-14 Digital Detection Systems Limi Fluid detection system

Families Citing this family (165)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4965825A (en) 1981-11-03 1990-10-23 The Personalized Mass Media Corporation Signal processing apparatus and methods
USRE47642E1 (en) 1981-11-03 2019-10-08 Personalized Media Communications LLC Signal processing apparatus and methods
US7831204B1 (en) 1981-11-03 2010-11-09 Personalized Media Communications, Llc Signal processing apparatus and methods
US4740834A (en) * 1981-12-14 1988-04-26 Mobarry Robert G Video program distribution
US4584602A (en) * 1982-11-08 1986-04-22 Pioneer Ansafone Manufacturing Corporation Polling system and method using nondedicated telephone lines
US4639779A (en) * 1983-03-21 1987-01-27 Greenberg Burton L Method and apparatus for the automatic identification and verification of television broadcast programs
US4547804A (en) * 1983-03-21 1985-10-15 Greenberg Burton L Method and apparatus for the automatic identification and verification of commercial broadcast programs
US4566030A (en) * 1983-06-09 1986-01-21 Ctba Associates Television viewer data collection system
EP0132465A1 (en) * 1983-07-21 1985-02-13 The Manitoba Telephone System Video distribution control system
US4734858B1 (en) * 1983-12-05 1997-02-11 Portel Services Network Inc Data terminal and system for placing orders
US4658290A (en) * 1983-12-08 1987-04-14 Ctba Associates Television and market research data collection system and method
US6201950B1 (en) 1984-09-14 2001-03-13 Aspect Telecommunications Corporation Computer-controlled paging and telephone communication system and method
US5375161A (en) * 1984-09-14 1994-12-20 Accessline Technologies, Inc. Telephone control system with branch routing
US5588037A (en) * 1984-09-14 1996-12-24 Accessline Technologies, Inc. Remote access telephone control system
US6545589B1 (en) 1984-09-14 2003-04-08 Aspect Communications Corporation Method and apparatus for managing telecommunications
US5752191A (en) 1984-09-14 1998-05-12 Accessline Technologies, Inc. Telephone control system which connects a caller with a subscriber AT A telephone address
US4647964A (en) * 1985-10-24 1987-03-03 Weinblatt Lee S Technique for testing television commercials
EP0267039A3 (en) * 1986-11-05 1990-04-04 Satellite Technology Services, Inc. Video system and method for controlled videotaping
US4893248A (en) * 1987-02-06 1990-01-09 Access Corporation Monitoring and reporting system for remote terminals
US5081680A (en) * 1987-11-20 1992-01-14 General Instrument Corporation Initial reporting of remotely generated data
US4943963A (en) * 1988-01-19 1990-07-24 A. C. Nielsen Company Data collection and transmission system with real time clock
US4885632A (en) * 1988-02-29 1989-12-05 Agb Television Research System and methods for monitoring TV viewing system including a VCR and/or a cable converter
US5157716A (en) * 1988-04-27 1992-10-20 Scientific-Atlanta, Inc. Dynamic callback technique
US5247575A (en) * 1988-08-16 1993-09-21 Sprague Peter J Information distribution system
US5987058A (en) * 1988-11-02 1999-11-16 Axonn Corporation Wireless alarm system
US4949272A (en) * 1988-12-16 1990-08-14 Pitney Bowes Inc. Flexible billing rate for mail communication systems
CA2053261A1 (en) * 1989-04-28 1990-10-29 Gary D. Hornbuckle Method and apparatus for remotely controlling and monitoring the use of computer software
ATE143511T1 (en) * 1989-04-28 1996-10-15 Softel Inc METHOD AND DEVICE FOR REMOTE CONTROL AND MONITORING THE USE OF COMPUTER PROGRAMS
US5224157A (en) * 1989-05-22 1993-06-29 Minolta Camera Kabushiki Kaisha Management system for managing maintenance information of image forming apparatus
US5319453A (en) * 1989-06-22 1994-06-07 Airtrax Method and apparatus for video signal encoding, decoding and monitoring
US5553094A (en) * 1990-02-15 1996-09-03 Iris Systems, Inc. Radio communication network for remote data generating stations
US5056107A (en) * 1990-02-15 1991-10-08 Iris Systems Inc. Radio communication network for remote data generating stations
US5673252A (en) * 1990-02-15 1997-09-30 Itron, Inc. Communications protocol for remote data generating stations
US5491535A (en) * 1990-04-10 1996-02-13 Minolta Camera Kabushiki Kaisha Control appartus of copying machine with improved communication function for centralized control
US5300980A (en) * 1990-04-10 1994-04-05 Minolta Camera Kabushiki Kaisha Control apparatus of copying machine with improved communication function for centralized control unit
US5216461A (en) * 1990-07-31 1993-06-01 Minolta Camera Kabushiki Kaisha Control system for copying machine with improved communication function to centralized control unit
US5253275A (en) 1991-01-07 1993-10-12 H. Lee Browne Audio and video transmission and receiving system
US5134719A (en) 1991-02-19 1992-07-28 Mankovitz Roy J Apparatus and methods for identifying broadcast audio program selections in an FM stereo broadcast system
US5270809A (en) * 1991-03-29 1993-12-14 Scientific-Atlanta Data return for a television transmission system
JP3227750B2 (en) * 1991-12-10 2001-11-12 ミノルタ株式会社 Copier
US5301122A (en) * 1992-02-12 1994-04-05 Measuring And Monitoring, Inc. Measuring and monitoring system
USRE38600E1 (en) 1992-06-22 2004-09-28 Mankovitz Roy J Apparatus and methods for accessing information relating to radio television programs
US5703795A (en) * 1992-06-22 1997-12-30 Mankovitz; Roy J. Apparatus and methods for accessing information relating to radio and television programs
US6253069B1 (en) 1992-06-22 2001-06-26 Roy J. Mankovitz Methods and apparatus for providing information in response to telephonic requests
US6193520B1 (en) * 1993-05-10 2001-02-27 Yugengaisha Adachi International Interactive communication system for communicating video game and karaoke software
US5448230A (en) * 1993-06-25 1995-09-05 Metscan, Incorporated Remote data acquisition and communication system
US6026156A (en) * 1994-03-18 2000-02-15 Aspect Telecommunications Corporation Enhanced call waiting
WO1995028803A1 (en) * 1994-04-13 1995-10-26 Mankovitz Roy J Apparatus and method for accessing broadcast information
US6963859B2 (en) 1994-11-23 2005-11-08 Contentguard Holdings, Inc. Content rendering repository
JPH08263438A (en) 1994-11-23 1996-10-11 Xerox Corp Distribution and use control system of digital work and access control method to digital work
DE69523178T2 (en) * 1994-12-30 2002-01-31 Thomson Consumer Electronics MODEM WITH AUTOMATIC RECALL POSSIBILITY
WO1996024991A1 (en) * 1995-02-08 1996-08-15 Actual Radio Measurement Remote listenership monitoring system
US5818438A (en) 1995-04-25 1998-10-06 Bellsouth Corporation System and method for providing television services
US6411682B1 (en) 1995-09-21 2002-06-25 Aspect Telecommunications Corporation Computer controlled paging and telephone communication system and method
US6230203B1 (en) 1995-10-20 2001-05-08 Scientific-Atlanta, Inc. System and method for providing statistics for flexible billing in a cable environment
US5966163A (en) 1995-10-20 1999-10-12 Scientific-Atlanta, Inc. Providing constant bit rate upstream data transport in a two way cable system by scheduling preemptive grants for upstream data slots using selected fields of a plurality of grant fields
US5905865A (en) 1995-10-30 1999-05-18 Web Pager, Inc. Apparatus and method of automatically accessing on-line services in response to broadcast of on-line addresses
US7028088B1 (en) 1996-04-03 2006-04-11 Scientific-Atlanta, Inc. System and method for providing statistics for flexible billing in a cable environment
US7266686B1 (en) 1996-05-09 2007-09-04 Two-Way Media Llc Multicasting method and apparatus
DE59706675D1 (en) * 1996-11-29 2002-04-25 Siemens Ag Procedure for the collection of accounting data for the use of programmed or programmatically available services
US7587323B2 (en) 2001-12-14 2009-09-08 At&T Intellectual Property I, L.P. System and method for developing tailored content
US7802276B2 (en) 1997-01-06 2010-09-21 At&T Intellectual Property I, L.P. Systems, methods and products for assessing subscriber content access
US8640160B2 (en) 1997-01-06 2014-01-28 At&T Intellectual Property I, L.P. Method and system for providing targeted advertisements
US20060075456A1 (en) * 1997-01-06 2006-04-06 Gray James Harold Methods and systems for collaborative capture of television viewer generated clickstreams
US20060253884A1 (en) * 1997-01-06 2006-11-09 Gray James H Methods and systems for network based capture of television viewer generated clickstreams
US6983478B1 (en) 2000-02-01 2006-01-03 Bellsouth Intellectual Property Corporation Method and system for tracking network use
US8677384B2 (en) 2003-12-12 2014-03-18 At&T Intellectual Property I, L.P. Methods and systems for network based capture of television viewer generated clickstreams
US7020652B2 (en) * 2001-12-21 2006-03-28 Bellsouth Intellectual Property Corp. System and method for customizing content-access lists
US7617508B2 (en) 2003-12-12 2009-11-10 At&T Intellectual Property I, L.P. Methods and systems for collaborative capture of television viewer generated clickstreams
DE69837194T2 (en) 1997-01-06 2007-10-31 Bellsouth Intellectual Property Corp., Wilmington METHOD AND SYSTEM FOR NETWORK UTILIZATION DETECTION
US6272150B1 (en) 1997-01-17 2001-08-07 Scientific-Atlanta, Inc. Cable modem map display for network management of a cable data delivery system
US6324267B1 (en) 1997-01-17 2001-11-27 Scientific-Atlanta, Inc. Two-tiered authorization and authentication for a cable data delivery system
AR011440A1 (en) 1997-02-12 2000-08-16 Abb Power T & D Co ELECTRONIC MEASUREMENT PROVISION
US6233684B1 (en) 1997-02-28 2001-05-15 Contenaguard Holdings, Inc. System for controlling the distribution and use of rendered digital works through watermaking
US6073169A (en) 1997-04-08 2000-06-06 Abb Power T&D Company Inc. Automatic meter reading system employing common broadcast command channel
US6286058B1 (en) 1997-04-14 2001-09-04 Scientific-Atlanta, Inc. Apparatus and methods for automatically rerouting packets in the event of a link failure
WO1999021336A1 (en) * 1997-10-16 1999-04-29 Virtual Access (Ireland) Limited An apparatus and method for controlling access to a service over a communications system
US6938089B1 (en) 1997-10-16 2005-08-30 Virtual Access Technology Limited Apparatus and method for controlling access to a service over a communications system
US6240401B1 (en) * 1998-06-05 2001-05-29 Digital Video Express, L.P. System and method for movie transaction processing
DE19925387A1 (en) * 1999-06-02 2000-12-14 Clemente Spehr Method and device for suppressing unwanted program parts for consumer electronics devices
US20020065034A1 (en) * 1999-11-30 2002-05-30 Jack Zhang Methods and system for universal interactive services for broadcasting media
JP3432481B2 (en) * 2000-06-20 2003-08-04 沖電気工業株式会社 Communication network system
US7743259B2 (en) * 2000-08-28 2010-06-22 Contentguard Holdings, Inc. System and method for digital rights management using a standard rendering engine
US7603319B2 (en) 2000-08-28 2009-10-13 Contentguard Holdings, Inc. Method and apparatus for preserving customer identity in on-line transactions
US6745011B1 (en) * 2000-09-01 2004-06-01 Telephia, Inc. System and method for measuring wireless device and network usage and performance metrics
US7409700B1 (en) 2000-11-03 2008-08-05 The Walt Disney Company System and method for enhanced broadcasting and interactive
US7343324B2 (en) 2000-11-03 2008-03-11 Contentguard Holdings Inc. Method, system, and computer readable medium for automatically publishing content
US6912294B2 (en) 2000-12-29 2005-06-28 Contentguard Holdings, Inc. Multi-stage watermarking process and system
US7774279B2 (en) 2001-05-31 2010-08-10 Contentguard Holdings, Inc. Rights offering and granting
US7028009B2 (en) 2001-01-17 2006-04-11 Contentguardiholdings, Inc. Method and apparatus for distributing enforceable property rights
US20040039704A1 (en) * 2001-01-17 2004-02-26 Contentguard Holdings, Inc. System and method for supplying and managing usage rights of users and suppliers of items
US8069116B2 (en) 2001-01-17 2011-11-29 Contentguard Holdings, Inc. System and method for supplying and managing usage rights associated with an item repository
US6754642B2 (en) * 2001-05-31 2004-06-22 Contentguard Holdings, Inc. Method and apparatus for dynamically assigning usage rights to digital works
US7725401B2 (en) 2001-05-31 2010-05-25 Contentguard Holdings, Inc. Method and apparatus for establishing usage rights for digital content to be created in the future
US6876984B2 (en) 2001-05-31 2005-04-05 Contentguard Holdings, Inc. Method and apparatus for establishing usage rights for digital content to be created in the future
US8099364B2 (en) 2001-05-31 2012-01-17 Contentguard Holdings, Inc. Digital rights management of content when content is a future live event
US6895503B2 (en) 2001-05-31 2005-05-17 Contentguard Holdings, Inc. Method and apparatus for hierarchical assignment of rights to documents and documents having such rights
US8001053B2 (en) 2001-05-31 2011-08-16 Contentguard Holdings, Inc. System and method for rights offering and granting using shared state variables
US8275709B2 (en) 2001-05-31 2012-09-25 Contentguard Holdings, Inc. Digital rights management of content when content is a future live event
US8275716B2 (en) 2001-05-31 2012-09-25 Contentguard Holdings, Inc. Method and system for subscription digital rights management
AU2002312351B2 (en) * 2001-06-07 2006-11-30 Contentguard Holdings, Inc. Method and apparatus managing the transfer of rights
AU2002305814B2 (en) 2001-06-07 2004-06-10 Contentguard Holdings, Inc. Cryptographic trust zones in digital rights management
US7774280B2 (en) 2001-06-07 2010-08-10 Contentguard Holdings, Inc. System and method for managing transfer of rights using shared state variables
US7840488B2 (en) * 2001-11-20 2010-11-23 Contentguard Holdings, Inc. System and method for granting access to an item or permission to use an item based on configurable conditions
US7558759B2 (en) 2001-11-20 2009-07-07 Contentguard Holdings, Inc. Systems and methods for creating, manipulating and processing rights and contract expressions using tokenized templates
US7974923B2 (en) * 2001-11-20 2011-07-05 Contentguard Holdings, Inc. Extensible rights expression processing system
US7212979B1 (en) 2001-12-14 2007-05-01 Bellsouth Intellectuall Property Corporation System and method for identifying desirable subscribers
US7444658B1 (en) 2001-12-14 2008-10-28 At&T Intellectual Property I, L.P. Method and system to perform content targeting
US20110178877A1 (en) 2001-12-14 2011-07-21 Swix Scott R Advertising and content management systems and methods
US9967633B1 (en) 2001-12-14 2018-05-08 At&T Intellectual Property I, L.P. System and method for utilizing television viewing patterns
US7086075B2 (en) * 2001-12-21 2006-08-01 Bellsouth Intellectual Property Corporation Method and system for managing timed responses to A/V events in television programming
US8086491B1 (en) 2001-12-31 2011-12-27 At&T Intellectual Property I, L. P. Method and system for targeted content distribution using tagged data streams
US7805371B2 (en) * 2002-03-14 2010-09-28 Contentguard Holdings, Inc. Rights expression profile system and method
AU2003221995A1 (en) 2002-03-14 2003-09-29 Contentguard Holdings, Inc. System and method for graphical rights expressions
US8543511B2 (en) * 2002-04-29 2013-09-24 Contentguard Holdings, Inc. System and method for specifying and processing legality expressions
US20030208773A1 (en) * 2002-05-03 2003-11-06 C & C Jotikasthira Co., Ltd. Device for transferring data
US20060130112A1 (en) * 2002-06-14 2006-06-15 Patrick Stewart Streaming or real-time data television programming
US7119713B2 (en) 2002-06-27 2006-10-10 Elster Electricity, Llc Dynamic self-configuring metering network
US20040113810A1 (en) 2002-06-28 2004-06-17 Mason Robert T. Data collector for an automated meter reading system
US7685642B2 (en) * 2003-06-26 2010-03-23 Contentguard Holdings, Inc. System and method for controlling rights expressions by stakeholders of an item
US20040268417A1 (en) * 2003-06-30 2004-12-30 Gray James Harold System and method for providing enhanced hot key functionality
US20040268404A1 (en) * 2003-06-30 2004-12-30 Gray James Harold System and method for message notification
US8418196B2 (en) * 2003-06-30 2013-04-09 At&T Intellectual Property I, L.P. Interactive content with enhanced network operator control
US8635643B2 (en) * 2003-06-30 2014-01-21 At&T Intellectual Property I, L.P. System and method for providing interactive media content over a network
US8286203B2 (en) * 2003-12-19 2012-10-09 At&T Intellectual Property I, L.P. System and method for enhanced hot key delivery
US7262709B2 (en) 2004-04-26 2007-08-28 Elster Electricity, Llc System and method for efficient configuration in a fixed network automated meter reading system
US7239250B2 (en) 2004-04-26 2007-07-03 Elster Electricity, Llc System and method for improved transmission of meter data
US7187906B2 (en) 2004-04-26 2007-03-06 Elster Electricity, Llc Method and system for configurable qualification and registration in a fixed network automated meter reading system
BRPI0401757C1 (en) * 2004-05-14 2006-01-17 Ibope Pesquisa De Midia Ltda Audience measurement system and method
US7142106B2 (en) 2004-06-15 2006-11-28 Elster Electricity, Llc System and method of visualizing network layout and performance characteristics in a wireless network
US7702594B2 (en) 2004-09-24 2010-04-20 Elster Electricity, Llc System and method for automated configuration of meters
US7176807B2 (en) 2004-09-24 2007-02-13 Elster Electricity, Llc System for automatically enforcing a demand reset in a fixed network of electricity meters
US7742430B2 (en) 2004-09-24 2010-06-22 Elster Electricity, Llc System for automated management of spontaneous node migration in a distributed fixed wireless network
US7170425B2 (en) 2004-09-24 2007-01-30 Elster Electricity, Llc System and method for creating multiple operating territories within a meter reading system
US20060107326A1 (en) * 2004-11-12 2006-05-18 Demartini Thomas Method, system, and device for verifying authorized issuance of a rights expression
US8660961B2 (en) 2004-11-18 2014-02-25 Contentguard Holdings, Inc. Method, system, and device for license-centric content consumption
US20060112015A1 (en) * 2004-11-24 2006-05-25 Contentguard Holdings, Inc. Method, system, and device for handling creation of derivative works and for adapting rights to derivative works
US7327998B2 (en) 2004-12-22 2008-02-05 Elster Electricity, Llc System and method of providing a geographic view of nodes in a wireless network
US7308370B2 (en) 2005-03-22 2007-12-11 Elster Electricity Llc Using a fixed network wireless data collection system to improve utility responsiveness to power outages
KR100766889B1 (en) * 2005-04-08 2007-10-15 주식회사 알티캐스트 Behavior monitoring system using set top box for interactive digital broadcasting
US20060248573A1 (en) * 2005-04-28 2006-11-02 Content Guard Holdings, Inc. System and method for developing and using trusted policy based on a social model
US7529236B2 (en) * 2005-08-15 2009-05-05 Technocom Corporation Embedded wireless location validation benchmarking systems and methods
US7738864B2 (en) * 2005-08-15 2010-06-15 At&T Mobility Ii Llc Embedded wireless benchmarking systems and methods
US7495578B2 (en) 2005-09-02 2009-02-24 Elster Electricity, Llc Multipurpose interface for an automated meter reading device
US7308369B2 (en) 2005-09-28 2007-12-11 Elster Electricity Llc Ensuring automatic season change demand resets in a mesh type network of telemetry devices
EP1929685A4 (en) * 2005-09-29 2011-12-21 Contentguard Holdings Inc System and method for digital rights management using advanced copy with issue rights, and managed copy tokens
US7720767B2 (en) * 2005-10-24 2010-05-18 Contentguard Holdings, Inc. Method and system to support dynamic rights and resources sharing
US20070136773A1 (en) * 2005-12-14 2007-06-14 O'neil Douglas Systems and methods for providing television services using implicit content to indicate the availability of additional content
US8317618B2 (en) 2005-12-15 2012-11-27 At&T Intellectual Property I, Lp System, method and computer program for enabling an interactive game
US20070150338A1 (en) * 2005-12-22 2007-06-28 Dale Malik Systems, methods and computer programs for enabling interactive viewer control of advertising content
US8161412B2 (en) 2006-01-13 2012-04-17 At&T Intellectual Property I, L.P. Systems, methods, and computer program products for providing interactive content
US8402503B2 (en) * 2006-02-08 2013-03-19 At& T Intellectual Property I, L.P. Interactive program manager and methods for presenting program content
US7427927B2 (en) 2006-02-16 2008-09-23 Elster Electricity, Llc In-home display communicates with a fixed network meter reading system
US7545285B2 (en) 2006-02-16 2009-06-09 Elster Electricity, Llc Load control unit in communication with a fixed network meter reading system
US8065710B2 (en) * 2006-03-02 2011-11-22 At& T Intellectual Property I, L.P. Apparatuses and methods for interactive communication concerning multimedia content
CA2841017C (en) 2006-03-27 2016-12-20 The Nielsen Company (Us), Llc Methods and systems to meter media content presented on a wireless communication device
US8073384B2 (en) 2006-12-14 2011-12-06 Elster Electricity, Llc Optimization of redundancy and throughput in an automated meter data collection system using a wireless network
US8320302B2 (en) 2007-04-20 2012-11-27 Elster Electricity, Llc Over the air microcontroller flash memory updates
NZ586190A (en) 2007-12-26 2013-05-31 Elster Electricity Llc A utility meter network wherein meters can transmit electrical and other readings to a collector by using other meters as repeaters
US8503991B2 (en) 2008-04-03 2013-08-06 The Nielsen Company (Us), Llc Methods and apparatus to monitor mobile devices
US8525692B2 (en) 2008-06-13 2013-09-03 Elster Solutions, Llc Techniques for limiting demand from an electricity meter with an installed relay
US8203463B2 (en) 2009-02-13 2012-06-19 Elster Electricity Llc Wakeup and interrogation of meter-reading devices using licensed narrowband and unlicensed wideband radio communication
US9075883B2 (en) 2009-05-08 2015-07-07 The Nielsen Company (Us), Llc System and method for behavioural and contextual data analytics
CN103154928B (en) 2010-06-24 2016-08-03 奥比融移动有限公司 Network server system and correlation technique thereof
US8340685B2 (en) 2010-08-25 2012-12-25 The Nielsen Company (Us), Llc Methods, systems and apparatus to generate market segmentation data with anonymous location data

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676580A (en) * 1970-06-01 1972-07-11 Video Information Systems Interrogated transponder system
US3733430A (en) * 1970-12-28 1973-05-15 Rca Corp Channel monitoring system
US4086434A (en) * 1976-09-07 1978-04-25 Leo P. Christiansen Remote condition reporting system
US4150254A (en) * 1977-05-04 1979-04-17 Licentia Patent-Verwaltungs-G.M.B.H. Telephone system for selecting and reproducing text on a screen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014004A (en) * 1975-08-04 1977-03-22 Harris Corporation Automatic report register

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676580A (en) * 1970-06-01 1972-07-11 Video Information Systems Interrogated transponder system
US3733430A (en) * 1970-12-28 1973-05-15 Rca Corp Channel monitoring system
US4086434A (en) * 1976-09-07 1978-04-25 Leo P. Christiansen Remote condition reporting system
US4150254A (en) * 1977-05-04 1979-04-17 Licentia Patent-Verwaltungs-G.M.B.H. Telephone system for selecting and reproducing text on a screen

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050451A1 (en) * 1980-10-20 1982-04-28 Minnesota Mining And Manufacturing Company Alarm data concentration and gathering system
FR2516328A1 (en) * 1981-11-06 1983-05-13 Thomson Csf Mat Tel Data collection, storage and transmission system - uses multiplexer to allow transmission via telephone line to central processor through MODEM and interface
EP0117298A2 (en) * 1983-02-25 1984-09-05 TELENORMA Telefonbau und Normalzeit GmbH Control method for flexible working hours using a telephone
EP0117298A3 (en) * 1983-02-25 1986-01-02 Telefonbau Und Normalzeit Gmbh Control method for flexible working hours using a telephone
EP0177512A1 (en) * 1984-03-26 1986-04-16 A.C. Nielsen Company Preprogrammed over-the-air marketing research system
EP0177512A4 (en) * 1984-03-26 1986-09-15 Nielsen A C Co Preprogrammed over-the-air marketing research system.
EP0212654A2 (en) * 1985-08-30 1987-03-04 AT&T Corp. Method and apparatus for disallowing the extension of a call through a network
EP0212654A3 (en) * 1985-08-30 1989-02-22 American Telephone And Telegraph Company Method and apparatus for disallowing the extension of a call through a network
EP0317082A1 (en) * 1987-11-20 1989-05-24 General Instrument Corporation Spontaneous reporting of remotely generated data
US5012510A (en) * 1988-04-27 1991-04-30 Scientific Atlantic Inc. Dynamic callback technique
EP0363847A1 (en) * 1988-10-11 1990-04-18 A.C. Nielsen Company System for substituting stored video information for another video information
EP0390666A1 (en) * 1989-03-28 1990-10-03 Elf Antar France Monitoring system for industrial installations
FR2645304A1 (en) * 1989-03-28 1990-10-05 Elf France SYSTEM FOR MONITORING INDUSTRIAL FACILITIES
EP0602777A1 (en) * 1992-10-20 1994-06-22 Mita Industrial Co. Ltd. A terminal device management system and a method for detecting a failed terminal device using the system
US5802271A (en) * 1992-10-20 1998-09-01 Mita Industrial Co., Ltd. Terminal device management system and a method for detecting a failed terminal device using the system
GB2330229A (en) * 1997-10-07 1999-04-14 Digital Detection Systems Limi Fluid detection system

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