FR2400811B1 - Procede pour le verrouillage digital de signaux video modules par impulsions codees - Google Patents

Procede pour le verrouillage digital de signaux video modules par impulsions codees

Info

Publication number
FR2400811B1
FR2400811B1 FR7823919A FR7823919A FR2400811B1 FR 2400811 B1 FR2400811 B1 FR 2400811B1 FR 7823919 A FR7823919 A FR 7823919A FR 7823919 A FR7823919 A FR 7823919A FR 2400811 B1 FR2400811 B1 FR 2400811B1
Authority
FR
France
Prior art keywords
video signals
code modulated
modulated video
digital locking
impulse code
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
FR7823919A
Other languages
English (en)
Other versions
FR2400811A1 (fr
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2400811A1 publication Critical patent/FR2400811A1/fr
Application granted granted Critical
Publication of FR2400811B1 publication Critical patent/FR2400811B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Dc Digital Transmission (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Analogue/Digital Conversion (AREA)
FR7823919A 1977-08-19 1978-08-16 Procede pour le verrouillage digital de signaux video modules par impulsions codees Expired FR2400811B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2737431A DE2737431C3 (de) 1977-08-19 1977-08-19 Verfahren zur digitalen Klemmung pulscodemodulierter Videosignale

Publications (2)

Publication Number Publication Date
FR2400811A1 FR2400811A1 (fr) 1979-03-16
FR2400811B1 true FR2400811B1 (fr) 1985-12-27

Family

ID=6016800

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7823919A Expired FR2400811B1 (fr) 1977-08-19 1978-08-16 Procede pour le verrouillage digital de signaux video modules par impulsions codees

Country Status (4)

Country Link
US (1) US4210933A (fr)
DE (1) DE2737431C3 (fr)
FR (1) FR2400811B1 (fr)
GB (1) GB1580290A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589034A (en) * 1980-12-05 1986-05-13 Canon Kabushiki Kaisha Image processing apparatus
US5325187A (en) * 1988-04-27 1994-06-28 Canon Kabushiki Kaisha Image processing apparatus with back porch period sampling and clamping
JPH02243080A (ja) * 1989-03-16 1990-09-27 Nec Corp テレビ信号符号化回路
US5003564A (en) * 1989-04-04 1991-03-26 Rca Licensing Corporation Digital signal clamp circuitry
US5245415A (en) * 1989-06-21 1993-09-14 Canon Kabushiki Kaisha Chroma encoder
GB2249236B (en) * 1990-10-25 1994-10-12 British Broadcasting Corp Improved clamping technique for television
KR0108917Y1 (en) * 1991-12-05 1997-11-08 Samsung Electronics Co Ltd Digital clamping circuit
US5428834A (en) * 1991-12-11 1995-06-27 Xetron Corporation Method and circuit for processing and filtering signals
US5263191A (en) * 1991-12-11 1993-11-16 Westinghouse Electric Corp. Method and circuit for processing and filtering signals

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3476875A (en) * 1967-03-03 1969-11-04 Bell Telephone Labor Inc Digital clamping of pulse code modulated television signals
JPS558051B2 (fr) * 1974-11-06 1980-03-01
DE2628662C3 (de) * 1976-06-25 1980-03-06 Robert Bosch Gmbh, 7000 Stuttgart System zur Korrektur der digitalen Wertigkeit von Signalen

Also Published As

Publication number Publication date
DE2737431A1 (de) 1979-02-22
GB1580290A (en) 1980-12-03
FR2400811A1 (fr) 1979-03-16
DE2737431C3 (de) 1980-11-06
DE2737431B2 (de) 1980-03-20
US4210933A (en) 1980-07-01

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Legal Events

Date Code Title Description
ST Notification of lapse