TW200501757A - YC separating circuit and YC separating method of composite video signal - Google Patents

YC separating circuit and YC separating method of composite video signal

Info

Publication number
TW200501757A
TW200501757A TW093106999A TW93106999A TW200501757A TW 200501757 A TW200501757 A TW 200501757A TW 093106999 A TW093106999 A TW 093106999A TW 93106999 A TW93106999 A TW 93106999A TW 200501757 A TW200501757 A TW 200501757A
Authority
TW
Taiwan
Prior art keywords
filter
signal
comb
separating
video signal
Prior art date
Application number
TW093106999A
Other languages
Chinese (zh)
Inventor
Yukio Koyanagi
Original Assignee
Neuro Solution 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
Application filed by Neuro Solution Corp filed Critical Neuro Solution Corp
Publication of TW200501757A publication Critical patent/TW200501757A/en

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)

Abstract

In the present invention, an FIR comb-like filter 2 is configured by using a unit filter having a filter coefficient of a basic numerical series {3, -8, -12, 72, -110, -72, -12, -8, 3}/256, and delay amounts of a plurality of delay devices 12-1 to 12-8 constituting the comb-like filter 2 are set at one horizontal scanning period of a video image, thereby enabling a comb-like filter characteristic having a large attenuation amount in the frequency band of the luminance signal having a frequency interleave relation with the color signal. In this way, the color signal and the luminance signal can be almost completely separated from a composite video signal without being influenced by the state or the movement of an input video signal, and a video interference such as a cross color or a dot crawl can be remarkably reduced.
TW093106999A 2003-05-13 2004-03-16 YC separating circuit and YC separating method of composite video signal TW200501757A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003135113A JP2004349739A (en) 2003-05-13 2003-05-13 Yc separating circuit and yc separating method of composite video signal

Publications (1)

Publication Number Publication Date
TW200501757A true TW200501757A (en) 2005-01-01

Family

ID=33447170

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093106999A TW200501757A (en) 2003-05-13 2004-03-16 YC separating circuit and YC separating method of composite video signal

Country Status (3)

Country Link
JP (1) JP2004349739A (en)
TW (1) TW200501757A (en)
WO (1) WO2004102975A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5011526B2 (en) * 2006-08-24 2012-08-29 国立大学法人豊橋技術科学大学 Pitch name and pitch estimation method of multi-chords

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS647480U (en) * 1987-07-02 1989-01-17
JPH0530531A (en) * 1991-07-23 1993-02-05 Nec Corp Brightness/chrominance signal separating circuit
JPH0638236A (en) * 1992-07-15 1994-02-10 Hitachi Ltd Signal separator circuit
JP3475800B2 (en) * 1998-08-06 2003-12-08 三菱電機株式会社 Luminance signal color signal separation circuit
JP2001298752A (en) * 2000-04-13 2001-10-26 Victor Co Of Japan Ltd Luminance signal separation unit

Also Published As

Publication number Publication date
JP2004349739A (en) 2004-12-09
WO2004102975A1 (en) 2004-11-25

Similar Documents

Publication Publication Date Title
EP1244292A3 (en) Method and apparatus for improving picture quality
FR2834436B3 (en) FRUIT AND VEGETABLE JUICE EXTRACTOR
WO2003013215A3 (en) Filters for canceling multiple noise sources in borehole electromagnetic telemetry system
WO2003063081A3 (en) Image processing to remove red-eye features without user interaction
KR970010101B1 (en) Post-processing method of digital transmission pictures
MX2007001950A (en) Configurable recursive digital filter for processing television audio signals.
EP1569351A3 (en) Apparatus and method for feed-forward image rejection in a dual conversion receiver
TW347636B (en) Motion adaptive video noise reduction system
WO2005033902A3 (en) Analog adaptive fir filter having independent coefficient sets for each filter tap
KR20020022672A (en) Electronic circuit and method for enhancing an image
GB2438660B (en) Recursive filter system for a video signal
TW200501757A (en) YC separating circuit and YC separating method of composite video signal
KR930003566B1 (en) Picture quality adjusting circuit
KR890011448A (en) Video signal separator
SE8204845D0 (en) DIGITALFERGTELEVISIONSSIGNALDEMODULATOR
KR890011446A (en) Adaptive Y / C Separation Circuit Using Horizontal and Vertical Correlation in Television Receivers
SG145556A1 (en) A digital filter for iq-generation, noise shaping and neighbour channel suppression
WO2006119065A3 (en) Dense-tap transversal filter with elementary coefficients
TW200514432A (en) Device and method for noise reduction of a video signal
KR880003528A (en) Chromaticity Signal Processing Circuit and Method
KR880004462A (en) Digital video signal processing circuit
SU1665548A1 (en) Digital passband filter of chromaticity channels
JPS57104382A (en) Ghost rejecting device for television receiver
EP1282228A3 (en) Digital filter circuit
EP1611807A4 (en) Tobacco filter