GB2321152B - Image signal processing apparatus - Google Patents

Image signal processing apparatus

Info

Publication number
GB2321152B
GB2321152B GB9700579A GB9700579A GB2321152B GB 2321152 B GB2321152 B GB 2321152B GB 9700579 A GB9700579 A GB 9700579A GB 9700579 A GB9700579 A GB 9700579A GB 2321152 B GB2321152 B GB 2321152B
Authority
GB
United Kingdom
Prior art keywords
processing apparatus
signal processing
image signal
image
signal
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 - Fee Related
Application number
GB9700579A
Other versions
GB9700579D0 (en
GB2321152A (en
Inventor
Yang Dennis Ou
Cha-Lin Tsai
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.)
Veutron Corp
Original Assignee
Umax Data System Inc
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 Umax Data System Inc filed Critical Umax Data System Inc
Priority to AU10140/97A priority Critical patent/AU681565B1/en
Priority to GB9700579A priority patent/GB2321152B/en
Publication of GB9700579D0 publication Critical patent/GB9700579D0/en
Publication of GB2321152A publication Critical patent/GB2321152A/en
Application granted granted Critical
Publication of GB2321152B publication Critical patent/GB2321152B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
    • H04N9/69—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits for modifying the colour signals by gamma correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Processing Of Color Television Signals (AREA)
GB9700579A 1997-01-13 1997-01-13 Image signal processing apparatus Expired - Fee Related GB2321152B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU10140/97A AU681565B1 (en) 1997-01-13 1997-01-13 Image signal processing apparatus
GB9700579A GB2321152B (en) 1997-01-13 1997-01-13 Image signal processing apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU10140/97A AU681565B1 (en) 1997-01-13 1997-01-13 Image signal processing apparatus
GB9700579A GB2321152B (en) 1997-01-13 1997-01-13 Image signal processing apparatus

Publications (3)

Publication Number Publication Date
GB9700579D0 GB9700579D0 (en) 1997-03-05
GB2321152A GB2321152A (en) 1998-07-15
GB2321152B true GB2321152B (en) 1998-11-25

Family

ID=25614100

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9700579A Expired - Fee Related GB2321152B (en) 1997-01-13 1997-01-13 Image signal processing apparatus

Country Status (2)

Country Link
AU (1) AU681565B1 (en)
GB (1) GB2321152B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4499494A (en) * 1982-09-27 1985-02-12 Rca Corporation Television gamma corrector with symmetrical response about black-level
US4837614A (en) * 1986-08-20 1989-06-06 Ricoh Company, Ltd. Color image processing method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4499494A (en) * 1982-09-27 1985-02-12 Rca Corporation Television gamma corrector with symmetrical response about black-level
US4837614A (en) * 1986-08-20 1989-06-06 Ricoh Company, Ltd. Color image processing method

Also Published As

Publication number Publication date
AU681565B1 (en) 1997-08-28
GB9700579D0 (en) 1997-03-05
GB2321152A (en) 1998-07-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee