ES2016202A6 - Process and device for recalibration of the colour burst signals of a colour television video signal - Google Patents

Process and device for recalibration of the colour burst signals of a colour television video signal

Info

Publication number
ES2016202A6
ES2016202A6 ES8903431A ES8903431A ES2016202A6 ES 2016202 A6 ES2016202 A6 ES 2016202A6 ES 8903431 A ES8903431 A ES 8903431A ES 8903431 A ES8903431 A ES 8903431A ES 2016202 A6 ES2016202 A6 ES 2016202A6
Authority
ES
Spain
Prior art keywords
read
memory
colour
samples
colour burst
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 - Lifetime
Application number
ES8903431A
Other languages
Spanish (es)
Inventor
Pierre Harivel
Andre Rousseau
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT 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 Alcatel CIT SA filed Critical Alcatel CIT SA
Publication of ES2016202A6 publication Critical patent/ES2016202A6/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/44—Colour synchronisation
    • H04N9/455—Generation of colour burst signals; Insertion of colour burst signals in colour picture signals or separation of colour burst signals from colour picture signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

A video signal is sampled and the samples stored alternately in two memory planes 250, 300 so that while writing into one, the other is being read from, the signal being reconstituted over a period of time straddling the nominal start of the colour burst signal whereby for the part preceding said nominal start immediately preceding samples are re-read and for the part following said nominal start one or several groups of samples chosen from the colour burst signal are re-read after a sequence of samples in phase with the colour burst signal. Each memory plane has a corresponding random access memory (301 Fig. 3) and pre-positionable address counter (305) associated with a pre-positioning loop enclosing a read-only memory (306) for decoding starts of address jumps, a read-only memory (307) for decoding the conditions authorising address jumps and a read-only memory (308) for decoding destination addresses of address jumps.
ES8903431A 1988-10-11 1989-10-11 Process and device for recalibration of the colour burst signals of a colour television video signal Expired - Lifetime ES2016202A6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8813345A FR2637757B1 (en) 1988-10-11 1988-10-11 METHOD AND DEVICE FOR RECALIBRATING CHROMINANCE SALVES OF A COLOR TELEVISION VIDEO SIGNAL

Publications (1)

Publication Number Publication Date
ES2016202A6 true ES2016202A6 (en) 1990-10-16

Family

ID=9370897

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8903431A Expired - Lifetime ES2016202A6 (en) 1988-10-11 1989-10-11 Process and device for recalibration of the colour burst signals of a colour television video signal

Country Status (5)

Country Link
JP (1) JP2919871B2 (en)
DE (1) DE3933706A1 (en)
ES (1) ES2016202A6 (en)
FR (1) FR2637757B1 (en)
GB (1) GB2225189B (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3679816A (en) * 1971-03-29 1972-07-25 Rca Corp Control apparatus for a color television receiver
CA1338158C (en) * 1982-07-15 1996-03-12 John D. Lowry Encryption and decryption (scrambling and unscrambling) of video signals
DE3243014C2 (en) * 1982-11-20 1985-01-24 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Circuit arrangement for demodulating SECAM color difference signals
FR2562365B1 (en) * 1984-03-30 1988-02-05 Loire Electro Region Pays CIRCUITS FOR ENCODING AND DECODING A VIDEO SIGNAL ENCODED BY OFFSETTING THE IMAGE SIGNAL FROM THE SYNCHRONIZATION SIGNAL
US4719505A (en) * 1986-09-19 1988-01-12 M/A-Com Government Systems, Inc. Color burst regeneration
US4769692A (en) * 1987-03-27 1988-09-06 The Grass Valley Group, Inc. Method and apparatus for calibrating the phase of a video signal
US4797730A (en) * 1987-04-10 1989-01-10 Ampex Corporation Method and apparatus for controlling the sampling phase of an analog color television signal

Also Published As

Publication number Publication date
JP2919871B2 (en) 1999-07-19
FR2637757B1 (en) 1990-11-16
DE3933706A1 (en) 1990-04-12
GB8922915D0 (en) 1989-11-29
FR2637757A1 (en) 1990-04-13
JPH02162989A (en) 1990-06-22
DE3933706C2 (en) 1990-09-13
GB2225189B (en) 1993-04-21
GB2225189A (en) 1990-05-23

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Legal Events

Date Code Title Description
SA6 Expiration date (snapshot 920101)

Free format text: 2009-10-11