GB1503166A - Summation circuit arrangement for colour television signals - Google Patents

Summation circuit arrangement for colour television signals

Info

Publication number
GB1503166A
GB1503166A GB3744475A GB3744475A GB1503166A GB 1503166 A GB1503166 A GB 1503166A GB 3744475 A GB3744475 A GB 3744475A GB 3744475 A GB3744475 A GB 3744475A GB 1503166 A GB1503166 A GB 1503166A
Authority
GB
United Kingdom
Prior art keywords
colour
summation circuit
undelayed
circuit arrangement
amplitude
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
GB3744475A
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.)
Indesit Industria Elettrodomestici Italiana SpA
Original Assignee
Indesit Industria Elettrodomestici Italiana SpA
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 Indesit Industria Elettrodomestici Italiana SpA filed Critical Indesit Industria Elettrodomestici Italiana SpA
Publication of GB1503166A publication Critical patent/GB1503166A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
    • H04N11/12—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only
    • H04N11/14—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system
    • H04N11/16—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system the chrominance signal alternating in phase, e.g. PAL-system

Landscapes

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

Abstract

1503166 Colour television INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 11 Sept 1975 [27 Sept 1974] 37444/75 Heading H4F A circuit arrangement, for eliminating half amplitude colour edges occurring in PAL type receivers in which phase errors are removed by adding a delayed and undelayed line, comprises amplitude detectors 22, 23 in the undelayed and delayed lines respectively, gates 25, 26 which are rendered conductive by detectors 22, 23 both receiving colour signals, summation circuit 28 and 6dB amplifier 27. At the beginning and end of a colour signal only one detector generates a "1" at the input to the AND gate hence gates 25, 26 are non-conducting and only the undelayed signal, doubled in amplitude at 27, is passed to summation circuit 28.
GB3744475A 1974-09-27 1975-09-11 Summation circuit arrangement for colour television signals Expired GB1503166A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6990274A IT1020882B (en) 1974-09-27 1974-09-27 SUMMER CIRCUIT OF TELEVISION CRO MATICS SIGNALS

Publications (1)

Publication Number Publication Date
GB1503166A true GB1503166A (en) 1978-03-08

Family

ID=11313068

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3744475A Expired GB1503166A (en) 1974-09-27 1975-09-11 Summation circuit arrangement for colour television signals

Country Status (3)

Country Link
DE (1) DE2542879C2 (en)
GB (1) GB1503166A (en)
IT (1) IT1020882B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19632018A1 (en) * 1996-08-08 1998-02-12 Thomson Brandt Gmbh Television receiver circuit with line delay line in colour channel
EP0823824A3 (en) * 1996-08-08 2000-06-21 Deutsche Thomson-Brandt Gmbh Television receiver with a line delay in the colour channel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1537225A1 (en) * 1967-12-08 1970-03-05 Loewe Opta Gmbh Circuit arrangement for automatically switching off or switching on the color channel in a color television receiver operating according to the PAL system
NZ157270A (en) * 1968-08-23
DE1918198A1 (en) * 1969-04-10 1970-11-05 Licentia Gmbh Circuit for automatic locking and opening of the color channel in a color television receiver
DE2048735A1 (en) * 1970-10-03 1972-04-06 Sel Circuit arrangement for suppressing color fringes in color television pictures

Also Published As

Publication number Publication date
DE2542879C2 (en) 1984-09-06
DE2542879A1 (en) 1976-04-08
IT1020882B (en) 1977-12-30

Similar Documents

Publication Publication Date Title
GB1508408A (en) Multiplex colour television transmission system
GB1534486A (en) Noise reduction system for television signals
GB1167074A (en) Improvements relating to Television Dropout Compensators.
GB1332514A (en) Detector with inactivating circuitry
GB1422699A (en) Fade-to-black video signal processing apparatus
GB1503166A (en) Summation circuit arrangement for colour television signals
GB1048327A (en) Signal modulation
GB1295380A (en)
GB1391434A (en) Television standards conversion
ES432720A1 (en) Video amplifier circuit for use with synchronous detectors
GB815680A (en) Chrominance-signal demodulating system
GB1236510A (en) Improvements in or relating to signal receiving systems
GB1323434A (en) Dropout compensator for pal colour television
GB1031247A (en) Improvements relating to colour television systems
GB1107548A (en) Improvements in and relating to colour television reception
GB1501953A (en) Circuit arrangement for processing a chroma signal
ES378043A1 (en) Television reciever with a phase detector having dual phase determining and correcting networks
CA986220A (en) Circuit for transmitting digital signals to conventional television receiver
GB1456501A (en) Television apparatus
AU437158B2 (en) Transmitter of positively modulated television signals
ES397061A2 (en) Decoder for television signals
AU441920B2 (en) Television receiver witha phase detector having dual phase determining and correcting networks
CA827328A (en) Television receiver synchronizing signal separator
AU438896B2 (en) Intermediate frequency amplifier for television receiver
GB1499409A (en) Processing circuit for colour television signals

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

Effective date: 19940911