HK102496A - Varying bandwidth digital signal detector - Google Patents

Varying bandwidth digital signal detector

Info

Publication number
HK102496A
HK102496A HK102496A HK102496A HK102496A HK 102496 A HK102496 A HK 102496A HK 102496 A HK102496 A HK 102496A HK 102496 A HK102496 A HK 102496A HK 102496 A HK102496 A HK 102496A
Authority
HK
Hong Kong
Prior art keywords
digital signal
signal detector
bandwidth digital
varying bandwidth
varying
Prior art date
Application number
HK102496A
Other languages
English (en)
Inventor
Robert Evan Myer
Original Assignee
At & T Corp
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 At & T Corp filed Critical At & T Corp
Publication of HK102496A publication Critical patent/HK102496A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/24—Automatic control in frequency-selective amplifiers
    • 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
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • 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
    • H04B1/1638—Special circuits to enhance selectivity of receivers not otherwise provided for
    • 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
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H04B2001/1054—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal by changing bandwidth

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
HK102496A 1989-12-26 1996-06-13 Varying bandwidth digital signal detector HK102496A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/456,897 US5012490A (en) 1989-12-26 1989-12-26 Varying bandwidth digital signal detector

Publications (1)

Publication Number Publication Date
HK102496A true HK102496A (en) 1996-06-21

Family

ID=23814586

Family Applications (1)

Application Number Title Priority Date Filing Date
HK102496A HK102496A (en) 1989-12-26 1996-06-13 Varying bandwidth digital signal detector

Country Status (6)

Country Link
US (1) US5012490A (fr)
EP (1) EP0435455B1 (fr)
JP (1) JP2781069B2 (fr)
CA (1) CA2027364C (fr)
DE (1) DE69021532T2 (fr)
HK (1) HK102496A (fr)

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Publication number Priority date Publication date Assignee Title
US5287556A (en) * 1990-09-28 1994-02-15 Motorola, Inc. Interference reduction using an adaptive receiver filter, signal strength, and BER sensing
JP2825389B2 (ja) * 1991-11-22 1998-11-18 株式会社東芝 Ｆｍ受信機
US5260670A (en) * 1992-01-16 1993-11-09 Tektronix, Inc. Equivalent time sampler using an oscillator
US5857003A (en) * 1993-07-30 1999-01-05 Aria Wireless Systems, Inc. Digital radio having improved modulation and detection processes
SG43121A1 (en) * 1993-10-14 1997-10-17 Ericsson Ge Mobile Inc Adaptive bandwidth receiver
US5668837A (en) * 1993-10-14 1997-09-16 Ericsson Inc. Dual-mode radio receiver for receiving narrowband and wideband signals
US5694395A (en) * 1994-09-30 1997-12-02 Lucent Technologies, Inc. Method and apparatus for processing multicarrier signals
US5757864A (en) * 1995-08-17 1998-05-26 Rockwell Semiconductor Systems, Inc. Receiver with filters offset correction
US5585720A (en) * 1995-10-23 1996-12-17 Western Atlas International, Inc. Signal processing method for multiexponentially decaying signals and application to nuclear magnetic resonance well logging tools
US5748667A (en) * 1996-03-25 1998-05-05 Dyckman; Howard L. Spread spectrum modulation using time varying linear filtering
US5949832A (en) * 1996-03-26 1999-09-07 Sicom, Inc. Digital receiver with tunable analog filter and method therefor
US5828660A (en) * 1996-04-26 1998-10-27 Motorola, Inc. Multiple user communication system, device and method with overlapping uplink carrier spectra
US6167246A (en) * 1997-05-09 2000-12-26 Micrel Incorporated Fully integrated all-CMOS AM receiver
JP3413060B2 (ja) 1997-05-13 2003-06-03 松下電器産業株式会社 直接変換受信機
US6198419B1 (en) 1998-06-17 2001-03-06 Lucent Technologies, Inc. Method and apparatus for extending the spurious free dynamic range of a digital-to-analog converter
US6339701B1 (en) 1998-06-17 2002-01-15 Lucent Technologies, Inc. Method and apparatus for extending the dynamic range of a frequency mixer
US6363120B1 (en) 1998-06-17 2002-03-26 Lucent Technologies Inc. Apparatus and method for extending the dynamic range of a mixer using feed forward distortion reduction
US6097324A (en) * 1998-06-17 2000-08-01 Lucent Technologies Inc. Method and apparatus for extending the spurious free dynamic range of an analog-to-digital converter
US6166600A (en) * 1998-08-31 2000-12-26 Lucent Technologies Inc. Automatic gain and phase controlled feedforward amplifier without pilot signal
US6052023A (en) * 1998-08-31 2000-04-18 Lucent Technologies Inc. Calibration system for feed forward distortion reduction system
US6127889A (en) * 1998-11-18 2000-10-03 Lucent Technologies Inc. Nested feed forward distortion reduction system
US5986499A (en) * 1998-12-21 1999-11-16 Lucent Technologies Inc. Pilot signal detection system using band reject filter
US6683905B1 (en) 2000-04-17 2004-01-27 Rf Micro Devices, Inc. Dual-mode receiver
JP2003289264A (ja) * 2002-03-28 2003-10-10 Toyota Industries Corp 受信機
US20040024596A1 (en) * 2002-07-31 2004-02-05 Carney Laurel H. Noise reduction system
GB2404533A (en) * 2003-07-15 2005-02-02 Panagiotis Fines Multicarrier transmission using overlapping frequency channels.
US7398065B1 (en) * 2004-08-31 2008-07-08 Rockwell Collins, Inc. Programmable sampling band pass filter
DE112008000069T5 (de) * 2007-01-18 2009-11-26 Nxp B.V. MEMS-Kondensatorschaltung und Verfahren
WO2010039680A1 (fr) * 2008-10-01 2010-04-08 Wabtec Holding Corp. Procédé de passage d’une radio à bande large à une radio à bande étroite

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087750A (en) * 1968-05-23 1978-05-02 The United States Of America As Represented By The Secretary Of The Army Receiver for detecting and analyzing amplitude or angle modulated waves in the presence of interference
US3792195A (en) * 1972-05-25 1974-02-12 American Chain & Cable Co Signal monitor for recurrent electrical signals
US3904968A (en) * 1974-05-13 1975-09-09 Rockwell International Corp Threshold extension switch
US4045740A (en) * 1975-10-28 1977-08-30 The United States Of America As Represented By The Secretary Of The Army Method for optimizing the bandwidth of a radio receiver
ES467364A1 (es) * 1978-02-28 1978-11-01 Wald S A De Sistema regulador de la banda pasante de audio para recepto-res de ondas hertzianas.
US4189755A (en) * 1978-03-17 1980-02-19 Microdyne Corporation Television receiver threshold extension system by means of signal-to-noise control of bandwidth
US4597107A (en) * 1983-04-01 1986-06-24 Psr Products, Inc. Modulation detector and classifier
US4601045A (en) * 1984-08-03 1986-07-15 Larse Corporation Modulator-demodulator method and apparatus with efficient bandwidth utilization
US4792993A (en) * 1985-10-30 1988-12-20 Capetronic (Bsr) Ltd. TVRD receiver system with automatic bandwidth adjustment
US4862175A (en) * 1986-06-24 1989-08-29 Cincinnati Microwave, Inc. Police radar signal band discrimination circuitry for a police radar warning receiver
JPH07120923B2 (ja) * 1986-12-27 1995-12-20 ソニー株式会社 フイルタ調整装置

Also Published As

Publication number Publication date
EP0435455B1 (fr) 1995-08-09
DE69021532T2 (de) 1996-04-04
JPH03292020A (ja) 1991-12-24
CA2027364A1 (fr) 1991-06-27
JP2781069B2 (ja) 1998-07-30
EP0435455A3 (en) 1993-02-10
US5012490A (en) 1991-04-30
DE69021532D1 (de) 1995-09-14
EP0435455A2 (fr) 1991-07-03
CA2027364C (fr) 1994-08-02

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PE Patent expired

Effective date: 20101122