JPS56160153A - Method of demodulating amplitude modulation signal and demodulator for executing same - Google Patents

Method of demodulating amplitude modulation signal and demodulator for executing same

Info

Publication number
JPS56160153A
JPS56160153A JP4924181A JP4924181A JPS56160153A JP S56160153 A JPS56160153 A JP S56160153A JP 4924181 A JP4924181 A JP 4924181A JP 4924181 A JP4924181 A JP 4924181A JP S56160153 A JPS56160153 A JP S56160153A
Authority
JP
Japan
Prior art keywords
reference signal
calculating
modulated signal
rho
image
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.)
Pending
Application number
JP4924181A
Other languages
English (en)
Inventor
Maruginoo Andore
Soruton Jieraaru
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of JPS56160153A publication Critical patent/JPS56160153A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
    • H04N11/12—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only
    • H04N11/14—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system
    • H04N11/16—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system the chrominance signal alternating in phase, e.g. PAL-system
    • H04N11/165—Decoding means therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Processing Of Color Television Signals (AREA)
  • Television Systems (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP4924181A 1980-04-01 1981-03-31 Method of demodulating amplitude modulation signal and demodulator for executing same Pending JPS56160153A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8007297A FR2479629B1 (fr) 1980-04-01 1980-04-01 Procede de demodulation d'un signal module en amplitude, demodulateur mettant en oeuvre ce procede et systeme de television comportant un tel dispositif

Publications (1)

Publication Number Publication Date
JPS56160153A true JPS56160153A (en) 1981-12-09

Family

ID=9240397

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4924181A Pending JPS56160153A (en) 1980-04-01 1981-03-31 Method of demodulating amplitude modulation signal and demodulator for executing same

Country Status (8)

Country Link
US (1) US4412181A (ja)
EP (1) EP0037317B1 (ja)
JP (1) JPS56160153A (ja)
AT (1) ATE7750T1 (ja)
CA (1) CA1173912A (ja)
DE (1) DE3163833D1 (ja)
ES (1) ES8205489A1 (ja)
FR (1) FR2479629B1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234487A (ja) * 1985-08-07 1987-02-14 Nec Corp 色信号復調装置
JPH02284547A (ja) * 1989-04-25 1990-11-21 Nec Corp 直交信号復調装置
JPH03201789A (ja) * 1989-12-28 1991-09-03 Nec Home Electron Ltd 色信号処理回路

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4484143A (en) * 1982-05-17 1984-11-20 Rockwell International Corporation CCD Demodulator circuit
US4626928A (en) * 1982-08-09 1986-12-02 Fuji Photo Film Co., Ltd. Orthogonal phase modulation and demodulation methods
DE3233829A1 (de) * 1982-09-11 1984-03-15 Blaupunkt-Werke Gmbh, 3200 Hildesheim Verfahren zur demodulation amplitudenmodilierter eingangssignale und schaltungsanordnung hierfuer
DE3239933A1 (de) * 1982-10-28 1984-05-03 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zum bestimmen der phasenabweichung eines wechselstromsignals
NO153893C (no) * 1983-02-14 1986-06-11 Rasmussen Oeystein Fremgangsmaate til fremstilling av selvtettende og/eller ikke dryppende takkonstruksjon.
US4562460A (en) * 1983-04-21 1985-12-31 Rca Corporation Manual hue control as for a digital TV
US4554576A (en) * 1983-04-21 1985-11-19 Rca Corporation Auto flesh circuitry as for a digital TV receiver
US4523221A (en) * 1983-06-07 1985-06-11 Rca Corporation TV Receiver circuitry for performing chroma gain, auto-flesh control and the matrixing of I and Q signals to (R-Y), (B-Y) and (G-Y) signals
US4547737A (en) * 1983-07-29 1985-10-15 Rca Corporation Demodulator of sampled data FM signals from sets of four successive samples
US4587552A (en) * 1983-09-02 1986-05-06 Rca Corporation Apparatus for generating the magnitude of the vector sum of two orthogonal signals as for use in a digital TV receiver
FR2552598B1 (fr) * 1983-09-23 1985-10-31 Labo Electronique Physique Procede et circuit de demodulation numerique d'un signal module en amplitude et recepteur de television equipe d'un tel circuit
FR2556546B1 (fr) * 1983-12-09 1986-08-01 Thomson Csf Procede et circuit de demodulation des signaux de chrominance dans un systeme de television de type pal
US4558348A (en) * 1983-12-30 1985-12-10 Rca Corporation Digital video signal processing system using asynchronous a-to-d encoding
US5153740A (en) * 1988-02-13 1992-10-06 Asahi Kogaku Kogyo K.K. Recording and demodulation devices for electronic still camera
JP3033352B2 (ja) * 1992-08-10 2000-04-17 日本電気株式会社 Ｐａｌエンコーダ
JP3522725B2 (ja) * 1999-08-06 2004-04-26 三菱電機株式会社 直交復調器および直交復調方法
US6806485B2 (en) * 2000-12-28 2004-10-19 Valeo Electrical Systems, Inc. Ambient light detector for off-the-glass rain sensor
CN105548073B (zh) * 2015-12-24 2018-07-10 中国科学院合肥物质科学研究院 一种应用于波长调制吸收光谱探测的简易解调方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3274503A (en) * 1962-11-30 1966-09-20 Herbert L Peterson Digital differentiator for amplitude modulated carrier
FR1585253A (ja) * 1968-08-09 1970-01-16
US4090145A (en) * 1969-03-24 1978-05-16 Webb Joseph A Digital quadrature demodulator
JPS4840649B1 (ja) * 1969-09-12 1973-12-01
US3952187A (en) * 1975-06-27 1976-04-20 Ford Motor Company Circuit for transforming rectangular coordinates to polar coordinates
IT1059490B (it) * 1976-04-22 1982-05-31 C S E L T Spa Demodulatore numerico con interpolazione per segnali dati modulati linearmente in ampiezza

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234487A (ja) * 1985-08-07 1987-02-14 Nec Corp 色信号復調装置
JPH02284547A (ja) * 1989-04-25 1990-11-21 Nec Corp 直交信号復調装置
JPH03201789A (ja) * 1989-12-28 1991-09-03 Nec Home Electron Ltd 色信号処理回路

Also Published As

Publication number Publication date
DE3163833D1 (en) 1984-07-05
ES500906A0 (es) 1982-06-01
FR2479629A1 (fr) 1981-10-02
EP0037317A1 (fr) 1981-10-07
EP0037317B1 (fr) 1984-05-30
ES8205489A1 (es) 1982-06-01
ATE7750T1 (de) 1984-06-15
FR2479629B1 (fr) 1985-11-08
CA1173912A (en) 1984-09-04
US4412181A (en) 1983-10-25

Similar Documents

Publication Publication Date Title
JPS56160153A (en) Method of demodulating amplitude modulation signal and demodulator for executing same
EP0147120A3 (en) A zero if demodulator and method of demodulation
DE3068202D1 (en) Double sideband quadrature carrier modulation system and method of transmitting information using the point constellation of such a system
DE2962743D1 (en) Process and apparatus for detecting a pseudo-random sequence of two symbols in a data receiver using a double sideband modulation with quadrature carriers
US4706261A (en) Differential phase modulation
US4608540A (en) Phase-shift keying demodulator
SE7904861L (sv) Amplitudmodulerat flerkanalsystem med oberoende sidband
ATE27083T1 (de) Numerischer pal-farbfernsehsignaldemodulator.
JPS55127632A (en) Coordinate reader making use of electrostatic coupling
KR970072643A (ko) 디지탈 fm 복조기
ATE7190T1 (de) Verfahren zur demodulation eines frequenzmodulierten signals und demodulator zur durchfuehrung des verfahrens.
KR840001412A (ko) 등기 포락선 검파기
EP0118214A3 (en) Demodulators
SE9100501L (sv) Foerfarande foer att minska inverkan av distorsionsprodukter
GB1534484A (en) Synchronous demodulation device
JPS5669958A (en) Demodulator
JPS5242056A (en) Fm demodulation distortion measuring unit
GB2120052A (en) Receiver
JPS6460046A (en) Fsk demodulating circuit
Badessa A communications detector with a signal-synthesized reference
RU1811642C (ru) Частотный демодул тор
JPH05103027A (ja) 遅延検波回路
JPS57118405A (en) Modulator and demodulator
JPS57107614A (en) Demodulating system for sampling signal
JPS5267243A (en) Amplitude phase modulation signal demodulation unit