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GB1333885A - Hue selection in colour television - Google Patents

Hue selection in colour television

Info

Publication number
GB1333885A
GB1333885A GB1333885DA GB1333885A GB 1333885 A GB1333885 A GB 1333885A GB 1333885D A GB1333885D A GB 1333885DA GB 1333885 A GB1333885 A GB 1333885A
Authority
GB
United Kingdom
Prior art keywords
colour television
hue selection
chroma
quadrature
hue
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
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.)
Pye Electronic Products Ltd
Original Assignee
Pye Ltd
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 Pye Ltd filed Critical Pye Ltd
Publication of GB1333885A publication Critical patent/GB1333885A/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
    • H04N9/64—Circuits for processing colour signals
    • H04N9/74—Circuits for processing colour signals for obtaining special effects
    • H04N9/75—Chroma key

Landscapes

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

Abstract

1333885 Chroma-keying PYE Ltd 4 Sept 1972 40962/72 Heading H4F Relates to a modification of the chromakeying system claimed in Specification 1,333,888 in which the quadrature modulated subcarrier chroma signals U and V are separated while maintaining their quadrature relationship from a PAL signal with quarter line offset by the arrangement claimed in Specification 1,333,886.
GB1333885D 1972-03-20 1972-09-04 Hue selection in colour television Expired GB1333885A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1281372 1972-03-20
GB4096272 1972-09-04

Publications (1)

Publication Number Publication Date
GB1333885A true GB1333885A (en) 1973-10-17

Family

ID=26249282

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1333885D Expired GB1333885A (en) 1972-03-20 1972-09-04 Hue selection in colour television

Country Status (1)

Country Link
GB (1) GB1333885A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5122865A (en) * 1988-09-15 1992-06-16 Samsung Electronics Co., Ltd. Chroma key signal generator for a video editing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5122865A (en) * 1988-09-15 1992-06-16 Samsung Electronics Co., Ltd. Chroma key signal generator for a video editing apparatus

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee