DE69126432D1 - Radiofrequenzdatenprozessor für kabelfernsehen - Google Patents

Radiofrequenzdatenprozessor für kabelfernsehen

Info

Publication number
DE69126432D1
DE69126432D1 DE69126432T DE69126432T DE69126432D1 DE 69126432 D1 DE69126432 D1 DE 69126432D1 DE 69126432 T DE69126432 T DE 69126432T DE 69126432 T DE69126432 T DE 69126432T DE 69126432 D1 DE69126432 D1 DE 69126432D1
Authority
DE
Germany
Prior art keywords
cable
radio frequency
data processor
frequency data
processor
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69126432T
Other languages
English (en)
Other versions
DE69126432T2 (de
Inventor
Jay Mcmullan
Douglas Hoder
Donald Huntley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scientific Atlanta LLC
Original Assignee
Scientific Atlanta LLC
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
Priority claimed from US07/498,083 external-priority patent/US5235619A/en
Priority claimed from US07/498,084 external-priority patent/US5155590A/en
Application filed by Scientific Atlanta LLC filed Critical Scientific Atlanta LLC
Publication of DE69126432D1 publication Critical patent/DE69126432D1/de
Application granted granted Critical
Publication of DE69126432T2 publication Critical patent/DE69126432T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44213Monitoring of end-user related data
    • H04N21/44222Analytics of user selections, e.g. selection of programs or purchase activity
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/18Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20Modulator circuits; Transmitter circuits
    • H04L27/2032Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2035Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using a single or unspecified number of carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/18Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22Demodulator circuits; Receiver circuits
    • H04L27/227Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2275Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
    • H04L27/2276Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals using frequency multiplication or harmonic tracking
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/02Channels characterised by the type of signal
    • H04L5/06Channels characterised by the type of signal the signals being represented by different frequencies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25866Management of end-user data
    • H04N21/25891Management of end-user data being end-user preferences
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/10Adaptations for transmission by electrical cable
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/16Analogue secrecy systems; Analogue subscription systems
    • H04N7/173Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309Transmission or handling of upstream communications
DE69126432T 1990-03-20 1991-03-20 Radiofrequenzdatenprozessor für kabelfernsehen Expired - Fee Related DE69126432T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US07/498,083 US5235619A (en) 1990-03-20 1990-03-20 Cable television radio frequency subscriber data transmission apparatus and rf return method
US07/498,084 US5155590A (en) 1990-03-20 1990-03-20 System for data channel level control
US07/503,422 US5142690A (en) 1990-03-20 1990-04-02 Cable television radio frequency data processor
PCT/US1991/001833 WO1991015062A1 (en) 1990-03-20 1991-03-20 Cable television radio frequency data processor

Publications (2)

Publication Number Publication Date
DE69126432D1 true DE69126432D1 (de) 1997-07-10
DE69126432T2 DE69126432T2 (de) 1998-01-08

Family

ID=27414086

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69126432T Expired - Fee Related DE69126432T2 (de) 1990-03-20 1991-03-20 Radiofrequenzdatenprozessor für kabelfernsehen

Country Status (11)

Country Link
US (1) US5142690A (de)
EP (1) EP0532504B1 (de)
JP (1) JPH05505913A (de)
CN (1) CN1056788A (de)
AU (1) AU659372B2 (de)
BR (1) BR9106267A (de)
CA (1) CA2078562A1 (de)
DE (1) DE69126432T2 (de)
ES (1) ES2108711T3 (de)
MX (1) MX174456B (de)
WO (1) WO1991015062A1 (de)

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Also Published As

Publication number Publication date
JPH05505913A (ja) 1993-08-26
BR9106267A (pt) 1992-12-01
EP0532504A4 (en) 1993-08-04
CA2078562A1 (en) 1991-09-21
US5142690A (en) 1992-08-25
WO1991015062A1 (en) 1991-10-03
ES2108711T3 (es) 1998-01-01
CN1056788A (zh) 1991-12-04
DE69126432T2 (de) 1998-01-08
AU7564291A (en) 1991-10-21
MX174456B (es) 1994-05-17
AU659372B2 (en) 1995-05-11
EP0532504A1 (de) 1993-03-24
EP0532504B1 (de) 1997-06-04

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