ES8705172A1 - Perfeccionamientos en un receptor de manipulacion por varia-cion de frecuencias - Google Patents

Perfeccionamientos en un receptor de manipulacion por varia-cion de frecuencias

Info

Publication number
ES8705172A1
ES8705172A1 ES549606A ES549606A ES8705172A1 ES 8705172 A1 ES8705172 A1 ES 8705172A1 ES 549606 A ES549606 A ES 549606A ES 549606 A ES549606 A ES 549606A ES 8705172 A1 ES8705172 A1 ES 8705172A1
Authority
ES
Spain
Prior art keywords
limiter
receiver
maximum
minimum
direct coupled
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
Application number
ES549606A
Other languages
English (en)
Other versions
ES549606A0 (es
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.)
Motorola Solutions Inc
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 ES8705172A1 publication Critical patent/ES8705172A1/es
Publication of ES549606A0 publication Critical patent/ES549606A0/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
    • H04L25/062—Setting decision thresholds using feedforward techniques only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

MODIFICACIONES EN UN RECEPTOR DE MANIPULACION POR VARIACION DE FRECUENCIAS. CONSISTENTES EN UN CIRCUITO DE INTERCONEXION QUE COMPRENDE UNA ANTENA (20) QUE SE ACOPLA AL RECEPTOR (22); UNA FUENTE DE VOLTAJE (BB) QUE SE ACOPLA A TRAVES DE UN INTERRUPTOR (24) PARA ALIMENTAR ENERGIA AL RECEPTOR (22); UN CIRCUITO ECONOMIZADOR DE BATERIA (32) QUE FUNCIONA PARA CONTROLAR LA OPERACION DE CONMUTACION DEL INTERRUPTOR (24); UN AMPLIFICADOR OPERACIONAL (40); Y UN TERMINAL DE ENTRADA DE UN CIRCUITO SEGUIDOR DE PICOS (42) Y UN TERMINAL DE ENTRADA DE UN CIRCUITO SEGUIDOR DE VALLES (44). TIENE APLICACIONES EN APARATOS DE RADIO ECONOMIZADORES DE POTENCIA.
ES549606A 1984-12-06 1985-12-05 Perfeccionamientos en un receptor de manipulacion por varia-cion de frecuencias Expired ES8705172A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/678,933 US4631737A (en) 1984-12-06 1984-12-06 Self biasing direct coupled data limiter

Publications (2)

Publication Number Publication Date
ES8705172A1 true ES8705172A1 (es) 1987-04-16
ES549606A0 ES549606A0 (es) 1987-04-16

Family

ID=24724928

Family Applications (1)

Application Number Title Priority Date Filing Date
ES549606A Expired ES8705172A1 (es) 1984-12-06 1985-12-05 Perfeccionamientos en un receptor de manipulacion por varia-cion de frecuencias

Country Status (5)

Country Link
US (1) US4631737A (es)
EP (1) EP0205460A1 (es)
AU (1) AU5063985A (es)
ES (1) ES8705172A1 (es)
WO (1) WO1986003636A1 (es)

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US4821292A (en) * 1987-06-03 1989-04-11 General Electric Company Adaptive limiter/detector which changes time constant upon detection of dotting pattern
US5056153A (en) * 1987-07-29 1991-10-08 Mazda Motor Corporation Mobile electric accessory apparatus
US5115404A (en) * 1987-12-23 1992-05-19 Tektronix, Inc. Digital storage oscilloscope with indication of aliased display
JP2530904B2 (ja) * 1988-02-22 1996-09-04 富士通株式会社 最適識別レベル制御方式
JPH01265718A (ja) * 1988-04-18 1989-10-23 Toshiba Corp シュミットトリガ回路
US4926442A (en) * 1988-06-17 1990-05-15 International Business Machines Corporation CMOS signal threshold detector
US5027352A (en) * 1989-01-05 1991-06-25 Motorola, Inc. Receiver frequency offset bias circuit for TDM radios
US4929851A (en) * 1989-01-23 1990-05-29 Motorola, Inc. Data limiter for a radio pager
US5052021A (en) * 1989-05-19 1991-09-24 Kabushiki Kaisha Toshiba Digital signal decoding circuit and decoding method
US5025251A (en) * 1989-06-29 1991-06-18 Motorola, Inc. Self-tuning direct coupled data limiter of a battery saver type paging receiver
US4939576A (en) * 1989-07-24 1990-07-03 Campbell Jack J Adaptive ringing reducer for television signal processing
US4975657A (en) * 1989-11-02 1990-12-04 Motorola Inc. Speech detector for automatic level control systems
JP2838156B2 (ja) * 1990-05-29 1998-12-16 モトローラ・インコーポレーテッド バッテリセイバ型ページング受信機の自己同調直接結合データリミッタ
JPH0491534A (ja) * 1990-08-06 1992-03-25 Furukawa Electric Co Ltd:The 消費電流制御装置
US5179724A (en) * 1991-01-15 1993-01-12 Ericsson G.E. Mobile Communications Holding Inc. Conserving power in hand held mobile telephones during a receiving mode of operation
KR940001862B1 (ko) * 1991-03-21 1994-03-09 삼성전자 주식회사 페이징 수신기의 바이어스 안정화 회로
GB2267632B (en) * 1991-10-21 1995-04-19 Motorola Inc System and method for calculating a state transition metric in a viterbi equalizer
US5311554A (en) * 1992-07-02 1994-05-10 Motorola, Inc. Synchronized offset extraction in a data receiver
US5461223A (en) * 1992-10-09 1995-10-24 Eastman Kodak Company Bar code detecting circuitry
US5303416A (en) * 1993-01-21 1994-04-12 Motorola, Inc. Method and apparatus for adjusting peak and valley acquisition rates of a signal received by a radio communication device
US5394441A (en) * 1993-02-05 1995-02-28 Motorola, Inc. Method and apparatus for digitally tracking highs and lows of a signal received by a radio communication device
FR2702053B1 (fr) * 1993-02-23 1995-04-07 Thomson Csf Dispositif à grande linéarité de limitation d'une caractéristique d'un signal, et utilisation du dispositif dans une chaîne de réception radar.
US5425056A (en) * 1993-03-23 1995-06-13 Motorola, Inc. Method and apparatus for generating threshold levels in a radio communication device for receiving four-level signals
US5475342A (en) * 1993-04-19 1995-12-12 Nippon Telegraph And Telephone Corporation Amplifier for stably maintaining a constant output
JP3060837B2 (ja) * 1993-06-10 2000-07-10 モトローラ・インコーポレイテッド 無線通信装置におけるバッテリ節約方法および装置
US5608762A (en) * 1993-06-30 1997-03-04 Spectralink Corporation Apparatus and method for automatic discriminator compensation in a FSK receiver
US5381146A (en) * 1993-07-06 1995-01-10 Digital Equipment Corporation Voltage-tracking circuit and application in a track-and-hold amplifier
US5381052A (en) * 1993-07-06 1995-01-10 Digital Equipment Corporation Peak detector circuit and application in a fiber optic receiver
US5436590A (en) * 1994-08-25 1995-07-25 Northern Telecom Limited Digital FSK demodulator with automatic offset cancellation
US5491434A (en) * 1994-12-05 1996-02-13 Motorola, Inc. Circuit and method of differential amplitude detection
US5585749A (en) * 1994-12-27 1996-12-17 Motorola, Inc. High current driver providing battery overload protection
US5555452A (en) * 1995-05-12 1996-09-10 Callaway, Jr.; Edgar H. Peak and valley signal measuring circuit using single digital-to-analog converter
US5670951A (en) * 1995-07-17 1997-09-23 Motorola, Inc. Radio communication device and method for generating threshold levels in a radio communication device for receiving four-level signals
US5930307A (en) * 1996-01-11 1999-07-27 Motorola Method and apparatus for acquiring peak and valley values of a signal received by a radio communication device
GB2313724B (en) * 1996-05-30 2000-06-28 Motorola Inc Voltage detector circuit
US5793174A (en) * 1996-09-06 1998-08-11 Hunter Douglas Inc. Electrically powered window covering assembly
JPH10173456A (ja) * 1996-12-11 1998-06-26 Fujitsu Ltd 信号増幅回路
US5949827A (en) * 1997-09-19 1999-09-07 Motorola, Inc. Continuous integration digital demodulator for use in a communication device
US6160490A (en) * 1998-02-02 2000-12-12 Motorola Apparatus for improving the battery life of a selective call receiver
KR100307588B1 (ko) * 1998-07-20 2001-10-19 윤종용 데이터 슬라이서
US6278312B1 (en) * 1999-02-24 2001-08-21 Intel Corporation Method and apparatus for generating a reference voltage signal derived from complementary signals
EP1198068B1 (en) * 2000-10-10 2008-04-23 Nemerix SA Electronic circuit and RF receiver with power save control
US20030107475A1 (en) * 2001-12-12 2003-06-12 Bautista Edwin Espanola Receiver for and method of extending battery life
US6762647B1 (en) * 2002-08-09 2004-07-13 Triquint Semiconductor, Inc. Active protection circuit for load mismatched power amplifier
US7103330B2 (en) * 2003-01-28 2006-09-05 Koninklijke Philips Electronics N.V. Method of transmitting information between an information transmitter and an information receiver
WO2010033080A1 (en) 2008-09-19 2010-03-25 Agency For Science, Technology And Research Modulator, demodulator and modulator-demodulator
US20120119789A1 (en) * 2010-11-16 2012-05-17 Lsi Corporation Peak Detector Extension System
TWI556586B (zh) * 2012-08-14 2016-11-01 普誠科技股份有限公司 接收器和資料切割器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838448A (en) * 1973-02-07 1974-09-24 Control Data Corp Compensated baseline circuit
DE2905904A1 (de) * 1979-02-16 1980-08-28 Licentia Gmbh Schaltungsanordnung zur grundlinienregeneration eines pcm-signals

Also Published As

Publication number Publication date
US4631737A (en) 1986-12-23
ES549606A0 (es) 1987-04-16
AU5063985A (en) 1986-07-01
WO1986003636A1 (en) 1986-06-19
EP0205460A1 (en) 1986-12-30

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990601