BE887868A - Systeme et procede pour transmettre un signal sonore a modulation par impulsions de largeur variable sur un signal video - Google Patents

Systeme et procede pour transmettre un signal sonore a modulation par impulsions de largeur variable sur un signal video

Info

Publication number
BE887868A
BE887868A BE0/204063A BE204063A BE887868A BE 887868 A BE887868 A BE 887868A BE 0/204063 A BE0/204063 A BE 0/204063A BE 204063 A BE204063 A BE 204063A BE 887868 A BE887868 A BE 887868A
Authority
BE
Belgium
Prior art keywords
transmitting
pulse modulation
variable width
width pulse
video signal
Prior art date
Application number
BE0/204063A
Other languages
English (en)
Inventor
R Quan
J O Ryan
Original Assignee
Ampex
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 Ampex filed Critical Ampex
Publication of BE887868A publication Critical patent/BE887868A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/084—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the horizontal blanking interval only

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Television Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
BE0/204063A 1980-03-10 1981-03-10 Systeme et procede pour transmettre un signal sonore a modulation par impulsions de largeur variable sur un signal video BE887868A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/129,060 US4333108A (en) 1980-03-10 1980-03-10 Apparatus and method for transmitting a pulse width modulated audio signal on a video signal

Publications (1)

Publication Number Publication Date
BE887868A true BE887868A (fr) 1981-07-01

Family

ID=22438280

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/204063A BE887868A (fr) 1980-03-10 1981-03-10 Systeme et procede pour transmettre un signal sonore a modulation par impulsions de largeur variable sur un signal video

Country Status (8)

Country Link
US (1) US4333108A (fr)
JP (1) JPS5720077A (fr)
BE (1) BE887868A (fr)
CA (1) CA1168349A (fr)
DE (1) DE3109091C2 (fr)
FR (1) FR2478921B1 (fr)
GB (1) GB2071458B (fr)
NL (1) NL8101160A (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5675388A (en) * 1982-06-24 1997-10-07 Cooper; J. Carl Apparatus and method for transmitting audio signals as part of a television video signal
NL8302787A (nl) * 1983-08-08 1985-03-01 Philips Nv Videovertaalsysteem voor het vertalen van een binair gecodeerd informatiesignaal naar een videosignaal en vice versa.
US4989219A (en) * 1984-03-16 1991-01-29 Gerdes Richard C Midlevel carrier modulation and demodulation techniques
US4613974A (en) * 1984-03-16 1986-09-23 Vokac Peter R Method and system for modulating a carrier signal
WO1988002199A1 (fr) * 1986-09-22 1988-03-24 Vokac Peter R Procede et systeme de modulation d'un signal porteur
DE3685621T2 (de) * 1985-03-15 1993-01-28 Zenith Electronics Corp Fernsehsignal-verschluesselungs- und datenuebertragungsanordnung.
USRE33535E (en) * 1985-09-16 1991-02-12 Audio to video timing equalizer method and apparatus
US4703355A (en) * 1985-09-16 1987-10-27 Cooper J Carl Audio to video timing equalizer method and apparatus
DE3732111A1 (de) * 1987-09-24 1989-04-06 Bosch Gmbh Robert Verfahren zur laufzeitanpassung von video- und audiosignalen an ein referenzsignal
US5072297A (en) * 1990-03-27 1991-12-10 Nippon Hoso Kyokai Method and system for transmitting and receiving PCM audio signals in combination with a video signal
US5327238A (en) * 1992-11-10 1994-07-05 Chou Wayne W Method and apparatus for modulating a separated television horizontal sync pulse as a subcarrier of audio information
US5426466A (en) * 1992-12-31 1995-06-20 Emhiser Research Limited Composite video signal with audio
US5379321A (en) * 1993-02-01 1995-01-03 Xerox Corporation High speed PWM without linearity compromise at extreme duty cycles
DE4307358A1 (de) * 1993-03-09 1994-09-15 Nokia Deutschland Gmbh Videorecorder mit verbesserter Aufzeichnung und Wiedergabe von Audiosignalen
US6836295B1 (en) 1995-12-07 2004-12-28 J. Carl Cooper Audio to video timing measurement for MPEG type television systems
AU2001286300A1 (en) * 2000-09-09 2002-03-22 High Gain Antenna Co., Ltd. Multilingual video-transmitting/receiving system
US20020097869A1 (en) * 2001-01-24 2002-07-25 Christopher Pasqualino System and method for increased data capacity of a digital video link

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE944068C (de) * 1952-03-02 1956-06-07 Dr Fritz Gutzmann Verfahren zur UEbertragung des Begleittones beim Fernsehen waehrend des Zeilenruecklaufs
GB1091272A (en) * 1966-01-19 1967-11-15 British Broadcasting Corp Improvements in sound reproduction in television reception
NL6802755A (fr) * 1967-03-02 1968-09-03
NL6807195A (fr) * 1967-05-24 1968-11-25
DE1803388B2 (de) * 1968-10-16 1975-07-24 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung zur Übertragung von Bild und Ton im gleichen Frequenzband
BE758493A (nl) * 1969-11-05 1971-05-05 Int Standard Electric Corp Werkwijze voor de overdracht van tenminste een geluidsignaal binnen hetfrequentiespectrum van een beeldsignaal
FR2205796B1 (fr) * 1972-11-08 1977-08-26 Cit Alcatel
US3849594A (en) * 1973-05-25 1974-11-19 Westinghouse Electric Corp Multi-picture tv system with audio and doding channels
JPS5120623A (ja) * 1974-08-14 1976-02-19 Matsushita Electric Ind Co Ltd Shingodensohoshiki
JPS5121425A (ja) * 1974-08-14 1976-02-20 Matsushita Electric Ind Co Ltd Shingodensohoshiki

Also Published As

Publication number Publication date
DE3109091A1 (de) 1981-12-24
US4333108A (en) 1982-06-01
GB2071458A (en) 1981-09-16
GB2071458B (en) 1984-05-16
NL8101160A (nl) 1981-10-01
FR2478921B1 (fr) 1986-05-16
FR2478921A1 (fr) 1981-09-25
DE3109091C2 (de) 1983-10-27
CA1168349A (fr) 1984-05-29
JPS5720077A (en) 1982-02-02
JPH0522437B2 (fr) 1993-03-29

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: AMPEX CORP.

Effective date: 19910331