IL91149A - ממצה אפנון את" ד ספרתי בעל שעור דגימה מופחת - Google Patents

ממצה אפנון את" ד ספרתי בעל שעור דגימה מופחת

Info

Publication number
IL91149A
IL91149A IL9114989A IL9114989A IL91149A IL 91149 A IL91149 A IL 91149A IL 9114989 A IL9114989 A IL 9114989A IL 9114989 A IL9114989 A IL 9114989A IL 91149 A IL91149 A IL 91149A
Authority
IL
Israel
Prior art keywords
signal
sampling rate
khz
digital
sampling
Prior art date
Application number
IL9114989A
Other languages
English (en)
Other versions
IL91149A0 (en
Original Assignee
Motorola Inc
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
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of IL91149A0 publication Critical patent/IL91149A0/xx
Publication of IL91149A publication Critical patent/IL91149A/he

Links

Classifications

    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/006—Demodulation of angle-, frequency- or phase- modulated oscillations by sampling the oscillations and further processing the samples, e.g. by computing techniques
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/005—Analog to digital conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0052—Digital to analog conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0054—Digital filters
    • H03D2200/0056—Digital filters including a digital decimation filter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/006—Signal sampling

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Television Signal Processing For Recording (AREA)
IL9114989A 1988-10-03 1989-07-28 ממצה אפנון את" ד ספרתי בעל שעור דגימה מופחת IL91149A (he)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/253,174 US5220583A (en) 1988-10-03 1988-10-03 Digital fm demodulator with a reduced sampling rate

Publications (2)

Publication Number Publication Date
IL91149A0 IL91149A0 (en) 1990-03-19
IL91149A true IL91149A (he) 1994-08-26

Family

ID=22959179

Family Applications (1)

Application Number Title Priority Date Filing Date
IL9114989A IL91149A (he) 1988-10-03 1989-07-28 ממצה אפנון את" ד ספרתי בעל שעור דגימה מופחת

Country Status (7)

Country Link
US (1) US5220583A (he)
KR (1) KR900702667A (he)
CN (1) CN1041679A (he)
AU (1) AU4418089A (he)
CA (1) CA1336337C (he)
IL (1) IL91149A (he)
WO (1) WO1990004292A1 (he)

Families Citing this family (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5995556A (en) * 1990-06-06 1999-11-30 California Institute Of Technology Front end for GPS receivers
WO1994005087A1 (en) * 1992-08-25 1994-03-03 Wireless Access, Inc. A direct conversion receiver for multiple protocols
US5375146A (en) * 1993-05-06 1994-12-20 Comsat Corporation Digital frequency conversion and tuning scheme for microwave radio receivers and transmitters
US5490173A (en) * 1993-07-02 1996-02-06 Ford Motor Company Multi-stage digital RF translator
US5610825A (en) * 1994-11-08 1997-03-11 Johnson; William J. Method and apparatus for the display of digitized analog signal loss
CN1154313C (zh) * 1994-12-29 2004-06-16 摩托罗拉公司 数字接收器
US5754597A (en) * 1994-12-29 1998-05-19 Motorola, Inc. Method and apparatus for routing a digitized RF signal to a plurality of paths
US5579341A (en) * 1994-12-29 1996-11-26 Motorola, Inc. Multi-channel digital transceiver and method
US5640698A (en) * 1995-06-06 1997-06-17 Stanford University Radio frequency signal reception using frequency shifting by discrete-time sub-sampling down-conversion
FR2735925B1 (fr) * 1995-06-20 1997-09-12 Intercontrole Sa Dispositif de demodulation simultanee d'un signal multifrequentiel, notamment pour une mesure par courants de foucault
GB9512732D0 (en) * 1995-06-22 1995-08-23 Univ Bristol Radio receiver and frequency generator
US5732337A (en) * 1995-08-10 1998-03-24 Ford Motor Company Reconfigurable mixer-filter-decimator
US5758274A (en) * 1996-03-13 1998-05-26 Symbol Technologies, Inc. Radio frequency receiver with automatic gain control
US5694079A (en) * 1996-04-04 1997-12-02 Lucent Technologies Inc. Digital FM demodulator using a lagrangian interpolation function
US5802118A (en) * 1996-07-29 1998-09-01 Cirrus Logic, Inc. Sub-sampled discrete time read channel for computer storage systems
US6028728A (en) * 1998-01-14 2000-02-22 Cirrus Logic, Inc. Sampled amplitude read/write channel employing a sub-baud rate write clock
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US7321735B1 (en) 1998-10-21 2008-01-22 Parkervision, Inc. Optical down-converter using universal frequency translation technology
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US7295826B1 (en) 1998-10-21 2007-11-13 Parkervision, Inc. Integrated frequency translation and selectivity with gain control functionality, and applications thereof
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6031418A (en) * 1998-11-19 2000-02-29 Lockheed Martin Corporation Method and apparatus for demodulating digital frequency modulation (FM) signals
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US7006805B1 (en) 1999-01-22 2006-02-28 Parker Vision, Inc. Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US6873836B1 (en) 1999-03-03 2005-03-29 Parkervision, Inc. Universal platform module and methods and apparatuses relating thereto enabled by universal frequency translation technology
US7110435B1 (en) 1999-03-15 2006-09-19 Parkervision, Inc. Spread spectrum applications of universal frequency translation
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7072390B1 (en) 1999-08-04 2006-07-04 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments
US7054296B1 (en) 1999-08-04 2006-05-30 Parkervision, Inc. Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US7082171B1 (en) 1999-11-24 2006-07-25 Parkervision, Inc. Phase shifting applications of universal frequency translation
US6963734B2 (en) 1999-12-22 2005-11-08 Parkervision, Inc. Differential frequency down-conversion using techniques of universal frequency translation technology
US7292835B2 (en) 2000-01-28 2007-11-06 Parkervision, Inc. Wireless and wired cable modem applications of universal frequency translation technology
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US7554508B2 (en) 2000-06-09 2009-06-30 Parker Vision, Inc. Phased array antenna applications on universal frequency translation
US7010559B2 (en) 2000-11-14 2006-03-07 Parkervision, Inc. Method and apparatus for a parallel correlator and applications thereof
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
WO2003032522A2 (en) * 2001-10-08 2003-04-17 Qinetiq Limited Signal processing system and method for determininig antenna weights
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7085335B2 (en) 2001-11-09 2006-08-01 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US6975848B2 (en) 2002-06-04 2005-12-13 Parkervision, Inc. Method and apparatus for DC offset removal in a radio frequency communication channel
US7321640B2 (en) 2002-06-07 2008-01-22 Parkervision, Inc. Active polyphase inverter filter for quadrature signal generation
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
US7272375B2 (en) 2004-06-30 2007-09-18 Silicon Laboratories Inc. Integrated low-IF terrestrial audio broadcast receiver and associated method
TWI268434B (en) * 2005-07-22 2006-12-11 Mitac Tech Corporation Method of quick activation of grouping function selection in multimedia playback system capable of starting the corresponding multimedia playback system quickly
US8169620B1 (en) 2009-09-21 2012-05-01 The United States Of America, As Represented By The Administrator Of The National Aeronautics And Space Administration Sub-pixel spatial resolution wavefront phase imaging
US9342716B2 (en) 2010-02-04 2016-05-17 Carefusion 303, Inc. Software-defined multi-mode RFID read devices
TWI551073B (zh) * 2011-06-03 2016-09-21 凱爾福郡３０３股份有限公司 射頻識別裝置及方法
RU2572105C2 (ru) * 2013-08-08 2015-12-27 Открытое акционерное общество Московский научно-исследовательский институт "АГАТ" Способ демодуляции частотно-модулированных сигналов

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3299204A (en) * 1962-08-29 1967-01-17 Nat Res Dev Television and like data transmission systems
FR2463549A1 (fr) * 1979-08-10 1981-02-20 Telecommunications Sa Dispositif de reduction du debit numerique d'informations codees
US4270026A (en) * 1979-11-28 1981-05-26 International Telephone And Telegraph Corporation Interpolator apparatus for increasing the word rate of a digital signal of the type employed in digital telephone systems
US4481659A (en) * 1982-02-11 1984-11-06 Universite De Sherbrooke Apparatus and method of reducing the bit rate of PCM speech
NL8400728A (nl) * 1984-03-07 1985-10-01 Philips Nv Digitale spraakcoder met basisband residucodering.
DE3411881A1 (de) * 1984-03-30 1985-10-10 Siemens AG, 1000 Berlin und 8000 München Verfahren und schaltungsanordnung zum uebertragen von mit einer ersten bitrate auftretenden datensignalbits in einem bitstrom mit einer gegenueber der ersten bitrate hoeheren zweiten bitrate
US4603300A (en) * 1984-09-21 1986-07-29 General Electric Company Frequency modulation detector using digital signal vector processing
JPS6212293A (ja) * 1985-07-09 1987-01-21 Mitsubishi Electric Corp 画像の帯域圧縮装置
US4675882A (en) * 1985-09-10 1987-06-23 Motorola, Inc. FM demodulator
US4733403A (en) * 1986-05-12 1988-03-22 Motorola, Inc. Digital zero IF selectivity section
US4791584A (en) * 1986-10-15 1988-12-13 Eastman Kodak Company Sub-nyquist interferometry
JPS63215185A (ja) * 1987-03-03 1988-09-07 Matsushita Electric Ind Co Ltd サブナイキスト符号化装置および復号化装置
US4811362A (en) * 1987-06-15 1989-03-07 Motorola, Inc. Low power digital receiver
US4852035A (en) * 1987-07-06 1989-07-25 The Grass Valley Group, Inc. Simple coefficient half-bandwidth digital filter for video data compression
US4808939A (en) * 1988-04-04 1989-02-28 Unisys Corporation Variable rate rectangular matched filter

Also Published As

Publication number Publication date
IL91149A0 (en) 1990-03-19
US5220583A (en) 1993-06-15
KR900702667A (ko) 1990-12-08
CA1336337C (en) 1995-07-18
WO1990004292A1 (en) 1990-04-19
CN1041679A (zh) 1990-04-25
AU4418089A (en) 1990-05-01

Similar Documents

Publication Publication Date Title
CA1336337C (en) Digital fm demodulator with a reduced sampling rate
JP2588510B2 (ja) Ｓｓｂ信号復調方法及び復調器
CA2066540C (en) Multiple user digital receiving apparatus and method with time division multiplexing
US5640424A (en) Direct downconverter circuit for demodulator in digital data transmission system
US7046749B2 (en) Narrowband gain control of receiver with digital post filtering
EP0377509B1 (en) Efficient digital frequency division multiplexed signal receiver
KR100203318B1 (ko) 광대역 주파수 신호 디지타이저 및 방법
US5729576A (en) Interference canceling receiver
EP0335037A1 (en) Direct conversion radio
EP0766409A3 (en) Multiband downconverter for digital receivers
US5142692A (en) Transmitting information with cut and flip spectrum
US6895232B2 (en) Method and apparatus for receiving radio frequency signals
US5627859A (en) Time-reversed infinite impulse response digital filtering
JP2000275327A (ja) 受信装置
CA2193435C (en) Digital center line filter
US4922549A (en) Digital FM squelch detector
US6195383B1 (en) Digital signal processing apparatus for frequency de-hopping
US6956911B2 (en) Receiver
WO1986001025A1 (en) Digital processor for speech signals
CN1110907C (zh) 多频道接收机
JP3532973B2 (ja) 放送受信機用の振幅復調器
EP1395048A1 (en) Analog television signal receiving method and device
US20030069022A1 (en) Amplitude cancellation topology for multichannel applications
JP2001516528A (ja) アナログ信号サンプリングの方法及び装置
Coy et al. HF-band radio receiver design based on digital signal processing

Legal Events

Date Code Title Description
RH Patent void