CA2066540A1 - Multiple User Digital Receiving Apparatus and Method with Time Division Multiplexing - Google Patents
Multiple User Digital Receiving Apparatus and Method with Time Division MultiplexingInfo
- Publication number
- CA2066540A1 CA2066540A1 CA2066540A CA2066540A CA2066540A1 CA 2066540 A1 CA2066540 A1 CA 2066540A1 CA 2066540 A CA2066540 A CA 2066540A CA 2066540 A CA2066540 A CA 2066540A CA 2066540 A1 CA2066540 A1 CA 2066540A1
- Authority
- CA
- Canada
- Prior art keywords
- time division
- division multiplexing
- receiving apparatus
- multiple user
- user digital
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/35—Constructional details or hardware or software details of the signal processing chain
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
- H04B1/001—Channel filtering, i.e. selecting a frequency channel within the SDR system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
- H04B1/0017—Digital filtering
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/006—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/26—Circuits for superheterodyne receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
- H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/35—Constructional details or hardware or software details of the signal processing chain
- G01S19/36—Constructional details or hardware or software details of the signal processing chain relating to the receiver frond end
Abstract
A digital receiver apparatus and method, designed for multiple simultaneous users, digitizes a received analog RF
signal and tunes to multiple desired frequencies of the received signal on a time division multiplexed basis.
After filtering by a finite impulse response (FIR) filter that also operates in time division multiplexing for multiple service bands, the selected signals are digitally de-modulated and audio processed, again on a time-shared basis.
signal and tunes to multiple desired frequencies of the received signal on a time division multiplexed basis.
After filtering by a finite impulse response (FIR) filter that also operates in time division multiplexing for multiple service bands, the selected signals are digitally de-modulated and audio processed, again on a time-shared basis.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US71449291A | 1991-06-13 | 1991-06-13 | |
US714,492 | 1991-06-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2066540A1 true CA2066540A1 (en) | 1992-12-14 |
CA2066540C CA2066540C (en) | 1998-01-20 |
Family
ID=24870265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002066540A Expired - Fee Related CA2066540C (en) | 1991-06-13 | 1992-04-21 | Multiple user digital receiving apparatus and method with time division multiplexing |
Country Status (5)
Country | Link |
---|---|
US (2) | US5621730A (en) |
JP (1) | JP2831512B2 (en) |
CA (1) | CA2066540C (en) |
DE (1) | DE4219308C2 (en) |
GB (1) | GB2258103B (en) |
Families Citing this family (55)
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CA2066540C (en) * | 1991-06-13 | 1998-01-20 | Edwin A. Kelley | Multiple user digital receiving apparatus and method with time division multiplexing |
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US6950388B2 (en) * | 1996-08-22 | 2005-09-27 | Tellabs Operations, Inc. | Apparatus and method for symbol alignment in a multi-point OFDM/DMT digital communications system |
US6771590B1 (en) * | 1996-08-22 | 2004-08-03 | Tellabs Operations, Inc. | Communication system clock synchronization techniques |
US6118758A (en) | 1996-08-22 | 2000-09-12 | Tellabs Operations, Inc. | Multi-point OFDM/DMT digital communications system including remote service unit with improved transmitter architecture |
US5959966A (en) * | 1997-06-02 | 1999-09-28 | Motorola, Inc. | Methods and apparatus for blind separation of radio signals |
KR100255868B1 (en) | 1997-06-28 | 2000-05-01 | 김영환 | Multiplier for 2's complement complex number |
WO1999006850A1 (en) * | 1997-07-31 | 1999-02-11 | Sierra Monolithics, Inc. | Direct sampling receiver |
US6631175B2 (en) * | 1998-04-03 | 2003-10-07 | Tellabs Operations, Inc. | Spectrally constrained impulse shortening filter for a discrete multi-tone receiver |
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US7440498B2 (en) * | 2002-12-17 | 2008-10-21 | Tellabs Operations, Inc. | Time domain equalization for discrete multi-tone systems |
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US6704545B1 (en) | 2000-07-19 | 2004-03-09 | Adc Telecommunications, Inc. | Point-to-multipoint digital radio frequency transport |
US7200377B2 (en) * | 2001-06-06 | 2007-04-03 | Visteon Corporation | Method and system for multi-channel RF digitization with analog selectivity |
US7359769B2 (en) * | 2001-12-20 | 2008-04-15 | Rain Bird Corporation | Wireless irrigation control device and related method |
US6782310B2 (en) * | 2001-12-20 | 2004-08-24 | Rain Bird Corporation | Wireless irrigation control device and related method |
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US8380143B2 (en) | 2002-05-01 | 2013-02-19 | Dali Systems Co. Ltd | Power amplifier time-delay invariant predistortion methods and apparatus |
US8811917B2 (en) | 2002-05-01 | 2014-08-19 | Dali Systems Co. Ltd. | Digital hybrid mode power amplifier system |
US7047043B2 (en) * | 2002-06-06 | 2006-05-16 | Research In Motion Limited | Multi-channel demodulation with blind digital beamforming |
US8958789B2 (en) | 2002-12-03 | 2015-02-17 | Adc Telecommunications, Inc. | Distributed digital antenna system |
GB2396276A (en) * | 2002-12-10 | 2004-06-16 | Ttp Com Ltd | A receiver using different sampling rates for 2G and 3G signals |
US7292638B2 (en) * | 2003-05-02 | 2007-11-06 | Thomson Licensing | Transform-based alias cancellation multi-channel tuner |
US7054281B2 (en) * | 2003-05-02 | 2006-05-30 | Thomson Licensing | Multi-channel tuner using a discrete cosine transform |
US20060227898A1 (en) * | 2003-07-10 | 2006-10-12 | Gibson Timothy P | Radio receiver |
US7373123B2 (en) | 2004-02-27 | 2008-05-13 | Harman International Industries, Incorporated | Multiple tuners in a single radio receiver |
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US7526052B2 (en) * | 2004-12-21 | 2009-04-28 | Raytheon Company | Configurable filter and receiver incorporating same |
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KR20140091616A (en) | 2006-12-26 | 2014-07-21 | 달리 시스템즈 씨오. 엘티디. | Method and system for baseband predistortion linearization in multi-channel wideband communication systems |
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KR20180026793A (en) | 2010-08-17 | 2018-03-13 | 달리 시스템즈 씨오. 엘티디. | Neutral host architecture for a distributed antenna system |
KR101829517B1 (en) | 2010-09-14 | 2018-02-14 | 달리 시스템즈 씨오. 엘티디. | Remotely Reconfigurable Distributed Antenna System and Methods |
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CN111913198B (en) * | 2020-08-13 | 2023-05-30 | 淮南师范学院 | Data processing method and system based on dual-mode navigation SOC (system on chip) |
CN114124134B (en) * | 2021-11-25 | 2023-06-23 | 航天新通科技有限公司 | TDD transmitting and receiving method, device, system and storage medium |
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CA2066540C (en) * | 1991-06-13 | 1998-01-20 | Edwin A. Kelley | Multiple user digital receiving apparatus and method with time division multiplexing |
CA2066851C (en) * | 1991-06-13 | 1996-08-06 | Edwin A. Kelley | Multiple user digital receiver apparatus and method with combined multiple frequency channels |
US5280636A (en) * | 1991-06-13 | 1994-01-18 | Hughes Aircraft Company | Multi-band digital receiving apparatus and method with bandwidth reduction |
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-
1992
- 1992-04-21 CA CA002066540A patent/CA2066540C/en not_active Expired - Fee Related
- 1992-05-29 GB GB9211350A patent/GB2258103B/en not_active Expired - Fee Related
- 1992-06-12 DE DE4219308A patent/DE4219308C2/en not_active Expired - Fee Related
- 1992-06-15 JP JP4155350A patent/JP2831512B2/en not_active Expired - Fee Related
- 1992-12-07 US US07/986,180 patent/US5621730A/en not_active Expired - Lifetime
-
1996
- 1996-12-12 US US08/764,808 patent/US5870402A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB2258103B (en) | 1995-05-17 |
JP2831512B2 (en) | 1998-12-02 |
GB2258103A (en) | 1993-01-27 |
DE4219308C2 (en) | 1995-11-16 |
DE4219308A1 (en) | 1992-12-17 |
US5621730A (en) | 1997-04-15 |
CA2066540C (en) | 1998-01-20 |
GB9211350D0 (en) | 1992-07-15 |
US5870402A (en) | 1999-02-09 |
JPH05183461A (en) | 1993-07-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed | ||
MKLA | Lapsed |
Effective date: 20050421 |