ES8502595A1 - Comb filtering TV signals - Google Patents

Comb filtering TV signals

Info

Publication number
ES8502595A1
ES8502595A1 ES527375A ES527375A ES8502595A1 ES 8502595 A1 ES8502595 A1 ES 8502595A1 ES 527375 A ES527375 A ES 527375A ES 527375 A ES527375 A ES 527375A ES 8502595 A1 ES8502595 A1 ES 8502595A1
Authority
ES
Spain
Prior art keywords
signals
combed
distortions
signal
chrominance
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
ES527375A
Other languages
Spanish (es)
Other versions
ES527375A0 (en
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.)
RCA Corp
Original Assignee
RCA Corp
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
Priority claimed from US06/444,381 external-priority patent/US4498099A/en
Priority claimed from US06/444,724 external-priority patent/US4498100A/en
Application filed by RCA Corp filed Critical RCA Corp
Publication of ES527375A0 publication Critical patent/ES527375A0/en
Publication of ES8502595A1 publication Critical patent/ES8502595A1/en
Expired 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
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • H04N9/78—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Television Systems (AREA)
  • Filters That Use Time-Delay Elements (AREA)

Abstract

A frame-to-frame comb filter for separating chrominance (C) Fig. 2(d) and luminance (Y) (c) signals from composite video signals (a), (b) produces objectionable distortions around the edges of moving objects. The distortions are substantially removed by low pass filtering (27) the combed chrominance signal and combining (31) the low pass filtered chrominance signal (e) with the combined luminance signal (c). Color distortions may also be removed by selectively adding the combed luminance signal to the combed chrominance signal during periods of detected motion.
ES527375A 1982-11-26 1983-11-18 Comb filtering TV signals Expired ES8502595A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/444,381 US4498099A (en) 1982-11-26 1982-11-26 Apparatus for frame-to-frame comb filtering composite TV signal
US06/444,724 US4498100A (en) 1982-11-26 1982-11-26 Apparatus for frame-to-frame comb filtering composite TV signal

Publications (2)

Publication Number Publication Date
ES527375A0 ES527375A0 (en) 1985-01-01
ES8502595A1 true ES8502595A1 (en) 1985-01-01

Family

ID=27033888

Family Applications (1)

Application Number Title Priority Date Filing Date
ES527375A Expired ES8502595A1 (en) 1982-11-26 1983-11-18 Comb filtering TV signals

Country Status (16)

Country Link
JP (1) JPH01286691A (en)
KR (1) KR910007205B1 (en)
AT (1) AT385165B (en)
AU (1) AU567898B2 (en)
DE (1) DE3342530C2 (en)
DK (1) DK167420B1 (en)
ES (1) ES8502595A1 (en)
FI (1) FI75964C (en)
FR (1) FR2536941B1 (en)
GB (1) GB2130840B (en)
HK (1) HK54589A (en)
IT (1) IT1168973B (en)
NL (1) NL8304056A (en)
NZ (1) NZ206403A (en)
PT (1) PT77695B (en)
SE (1) SE453246B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4612567A (en) * 1984-05-03 1986-09-16 Rca Corporation Television receiver using non-interlaced scanning format with vertical detail enhancement and motion compensation
US4710801A (en) * 1985-04-29 1987-12-01 International Business Machines Corporation System for decomposition of NTSC color video signals using two frame buffers
FR2625061A1 (en) * 1987-12-18 1989-06-23 Thomson Grand Public Separator of luminance and chrominance signals of a PAL or SECAM composite video signal
EP0376330B1 (en) * 1988-12-28 1996-03-06 Nec Home Electronics, Ltd. Movement detection and Y/C separation circuit and method for detecting a movement in a television display picture
DE3900490A1 (en) * 1989-01-10 1990-07-12 Broadcast Television Syst CIRCUIT ARRANGEMENT FOR DECODING COLOR TELEVISION SIGNALS

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107736A (en) * 1971-12-20 1978-08-15 Image Transform, Inc. Noise reduction system for video signals
US4096516A (en) * 1977-03-25 1978-06-20 Rca Corporation Electronic signal processing apparatus
DE2810697C2 (en) * 1978-03-11 1987-01-08 Robert Bosch Gmbh, 7000 Stuttgart Method for separating the chrominance signal from the luminance signal in colour television signals with quadrature-modulated colour subcarriers
NL7803910A (en) * 1978-04-13 1979-10-16 Philips Nv COMB FILTER CIRCUIT.
US4245237A (en) * 1979-05-11 1981-01-13 Rca Corporation Controllable non-linear processing of video signals
US4245238A (en) * 1979-05-11 1981-01-13 Rca Corporation Non-linear processing of video image vertical detail information
DE3007520C2 (en) * 1980-02-28 1987-04-16 Robert Bosch Gmbh, 7000 Stuttgart Circuit arrangement for demodulating a quadrature-modulated and then digitized color television signal
JPS56153892A (en) * 1980-04-28 1981-11-28 Sony Corp Comb type filter
GB2078054B (en) * 1980-06-02 1985-03-06 British Broadcasting Corp Pal decoding
US4351003A (en) * 1981-04-20 1982-09-21 Rca Corporation Automatic video signal peaking control

Also Published As

Publication number Publication date
HK54589A (en) 1989-07-14
AU2151083A (en) 1984-05-31
IT1168973B (en) 1987-05-20
FR2536941A1 (en) 1984-06-01
FI834239A0 (en) 1983-11-18
FI75964B (en) 1988-04-29
ES527375A0 (en) 1985-01-01
GB2130840A (en) 1984-06-06
PT77695A (en) 1983-12-01
IT8323843A0 (en) 1983-11-23
GB8331141D0 (en) 1983-12-29
DK541983D0 (en) 1983-11-25
DE3342530C2 (en) 1989-03-16
SE453246B (en) 1988-01-18
FI75964C (en) 1988-08-08
PT77695B (en) 1986-03-27
NL8304056A (en) 1984-06-18
FI834239A (en) 1984-05-27
JPH0356038B2 (en) 1991-08-27
DK167420B1 (en) 1993-10-25
AT385165B (en) 1988-02-25
SE8306361D0 (en) 1983-11-17
KR910007205B1 (en) 1991-09-19
NZ206403A (en) 1987-03-31
DE3342530A1 (en) 1984-05-30
GB2130840B (en) 1986-03-12
FR2536941B1 (en) 1988-08-26
DK541983A (en) 1984-05-27
JPH01286691A (en) 1989-11-17
ATA413083A (en) 1987-07-15
AU567898B2 (en) 1987-12-10
SE8306361L (en) 1984-05-27

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