ATE131669T1 - Schaltungsanordnung zum demodulieren eines fm- modulierten signals - Google Patents

Schaltungsanordnung zum demodulieren eines fm- modulierten signals

Info

Publication number
ATE131669T1
ATE131669T1 AT91202278T AT91202278T ATE131669T1 AT E131669 T1 ATE131669 T1 AT E131669T1 AT 91202278 T AT91202278 T AT 91202278T AT 91202278 T AT91202278 T AT 91202278T AT E131669 T1 ATE131669 T1 AT E131669T1
Authority
AT
Austria
Prior art keywords
demodulating
head switch
modulated signal
circuit arrangement
signal
Prior art date
Application number
AT91202278T
Other languages
English (en)
Inventor
Josephus Adrianus Pijnenburg
Holstlaan
Willem Hadde Noordermeer
Hulze Gerrit Jan Groot
Original Assignee
Philips Electronics Nv
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 Philips Electronics Nv filed Critical Philips Electronics Nv
Application granted granted Critical
Publication of ATE131669T1 publication Critical patent/ATE131669T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N5/9201—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal
    • H04N5/9202—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal the additional signal being a sound signal
    • H04N5/9204—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal the additional signal being a sound signal using frequency division multiplex
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
    • G11B15/14—Masking or switching periodically, e.g. of rotating heads
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/02—Analogue recording or reproducing
    • G11B20/025—Error detection or correction
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/02—Analogue recording or reproducing
    • G11B20/06—Angle-modulation recording or reproducing
    • 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
    • H03D3/001—Details of arrangements applicable to more than one type of frequency demodulator
    • H03D3/002—Modifications of demodulators to reduce interference by undesired signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/345—Muting during a short period of time when noise pulses are detected, i.e. blanking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/93—Regeneration of the television signal or of selected parts thereof
    • H04N5/94—Signal drop-out compensation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/802—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving processing of the sound signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Television Signal Processing For Recording (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Circuits Of Receivers In General (AREA)
AT91202278T 1990-09-12 1991-09-06 Schaltungsanordnung zum demodulieren eines fm- modulierten signals ATE131669T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9002004A NL9002004A (nl) 1990-09-12 1990-09-12 Inrichting voor het demoduleren van een fm-gemoduleerd signaal.

Publications (1)

Publication Number Publication Date
ATE131669T1 true ATE131669T1 (de) 1995-12-15

Family

ID=19857665

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91202278T ATE131669T1 (de) 1990-09-12 1991-09-06 Schaltungsanordnung zum demodulieren eines fm- modulierten signals

Country Status (6)

Country Link
US (1) US5121073A (de)
EP (1) EP0475521B1 (de)
JP (1) JP3031760B2 (de)
AT (1) ATE131669T1 (de)
DE (1) DE69115396T2 (de)
NL (1) NL9002004A (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19524794A1 (de) * 1995-07-07 1997-01-09 Philips Patentverwaltung Schaltungsanordnung zur Farbsignal-Verarbeitung
US7950112B2 (en) 1997-08-22 2011-05-31 Boa Technology, Inc. Reel based closure system
US20060156517A1 (en) 1997-08-22 2006-07-20 Hammerslag Gary R Reel based closure system
US6298226B1 (en) * 1998-11-30 2001-10-02 Conexant Systems, Inc. Receiver for RF signals
EP3636097A1 (de) 2004-10-29 2020-04-15 Boa Technology, Inc. Verschlusssystem auf rollenbasis
CN101553193B (zh) 2006-09-12 2013-09-25 Boa科技股份有限公司 夹具、保护装置的锁紧系统
KR20100129278A (ko) 2008-01-18 2010-12-08 보아 테크놀러지, 인크. 클로저 시스템
US8468657B2 (en) 2008-11-21 2013-06-25 Boa Technology, Inc. Reel based lacing system
EP2525679B1 (de) 2010-01-21 2020-04-01 Boa Technology, Inc. Führungen für schnürsysteme
WO2011137405A2 (en) 2010-04-30 2011-11-03 Boa Technology, Inc. Reel based lacing system
US9101181B2 (en) 2011-10-13 2015-08-11 Boa Technology Inc. Reel-based lacing system
EP3607845B1 (de) 2013-01-28 2022-11-09 Boa Technology Inc. Riemenfixieranordnung und system
US9610185B2 (en) 2013-03-05 2017-04-04 Boa Technology Inc. Systems, methods, and devices for automatic closure of medical devices
KR102596785B1 (ko) 2013-04-01 2023-11-02 보아 테크놀러지, 인크. 릴 기반의 폐쇄 시스템을 포함하도록 신발류를 개장하기 위한 방법 및 장치
DE112014003135B4 (de) 2013-07-02 2020-12-24 Boa Technology Inc. Rolle zur verwendung mit einem verschnürungssystem zum festziehen eines gegenstandes sowie vorrichtungen hierzu und verfahren zum zusammenbauen einer vorrichtung zum festziehen eines gegenstandes
KR101855407B1 (ko) 2013-07-10 2018-05-09 보아 테크놀러지, 인크. 증분적인 해제 메커니즘을 포함하는 폐쇄 장치 및 폐쇄 방법
WO2015035257A2 (en) 2013-09-05 2015-03-12 Boa Technology Inc. Alternative lacing guides for tightening mechanisms and methods therefor
KR102350912B1 (ko) 2013-09-13 2022-01-13 보아 테크놀러지, 인크. 릴 기반 폐쇄 장치 및 그에 따른 방법
EP3071159A1 (de) 2013-11-18 2016-09-28 Boa Technology, Inc. Verfahren und vorrichtungen zur bereitstellung eines automatischen verschlusses von prothesen und orthesen
US20160058127A1 (en) 2014-08-28 2016-03-03 Boa Technology Inc. Devices and methods for enhancing the fit of boots and other footwear
US10499709B2 (en) 2016-08-02 2019-12-10 Boa Technology Inc. Tension member guides of a lacing system
US10543630B2 (en) 2017-02-27 2020-01-28 Boa Technology Inc. Reel based closure system employing a friction based tension mechanism
US11492228B2 (en) 2019-05-01 2022-11-08 Boa Technology Inc. Reel based closure system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746306A (en) * 1980-09-03 1982-03-16 Hitachi Ltd Aural signal muting circuit of magnetic recorder and reproducer
NL8603036A (nl) * 1986-11-28 1988-06-16 Philips Nv Inrichting voor het demoduleren van een fm-gemoduleerd signaal.

Also Published As

Publication number Publication date
NL9002004A (nl) 1991-01-02
DE69115396D1 (de) 1996-01-25
EP0475521A1 (de) 1992-03-18
DE69115396T2 (de) 1996-08-01
JP3031760B2 (ja) 2000-04-10
JPH04271066A (ja) 1992-09-28
US5121073A (en) 1992-06-09
EP0475521B1 (de) 1995-12-13

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties