JPS5631289A - Beam index type color television receiver - Google Patents

Beam index type color television receiver

Info

Publication number
JPS5631289A
JPS5631289A JP10607879A JP10607879A JPS5631289A JP S5631289 A JPS5631289 A JP S5631289A JP 10607879 A JP10607879 A JP 10607879A JP 10607879 A JP10607879 A JP 10607879A JP S5631289 A JPS5631289 A JP S5631289A
Authority
JP
Japan
Prior art keywords
index signal
signal
output
delay time
horizontal scanning
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.)
Pending
Application number
JP10607879A
Other languages
Japanese (ja)
Inventor
Masao Kako
Kunio Ando
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10607879A priority Critical patent/JPS5631289A/en
Publication of JPS5631289A publication Critical patent/JPS5631289A/en
Pending 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
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/22—Picture reproducers using cathode ray tubes using the same beam for more than one primary colour information
    • H04N9/24—Picture reproducers using cathode ray tubes using the same beam for more than one primary colour information using means, integral with, or external to, the tube, for producing signal indicating instantaneous beam position

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

PURPOSE:To obtain an index signal without cross modulation, by scanning with an achromatic color picture signal beam in the first one horizontal scanning period and by using the index signal, which is obtained by this scanning, as the index signal in following (n-1) horizontal scanning periods. CONSTITUTION:Switches 20 and 21 are connected to the (a) terminal side in the first one horizontal scanning period out of n-number horizontal scanning periods. The index signal scanned by the achromatic color picture signal beam dependent upon luminance signal EY(t) is applied to the first delay circuit 24 of the delay time obtained by subtracting the delay time of the index signal processing circuit from one horizontal period and is output to output terminal P0 after a prescribed time. Here, change-over switches 20 and 21 are connected to the (b) terminal side, and the output of the first delay circuit 24 is output through the second delay circuit 25 of the delay time equal to the delay time of the index signal processing circuit and the first delay circuit 24. This loop requires just one horizontal period, and this signal is used as the index signal to switch color signal change-over switch 19 at a correct timing.
JP10607879A 1979-08-22 1979-08-22 Beam index type color television receiver Pending JPS5631289A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10607879A JPS5631289A (en) 1979-08-22 1979-08-22 Beam index type color television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10607879A JPS5631289A (en) 1979-08-22 1979-08-22 Beam index type color television receiver

Publications (1)

Publication Number Publication Date
JPS5631289A true JPS5631289A (en) 1981-03-30

Family

ID=14424542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10607879A Pending JPS5631289A (en) 1979-08-22 1979-08-22 Beam index type color television receiver

Country Status (1)

Country Link
JP (1) JPS5631289A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6316777U (en) * 1986-07-18 1988-02-03
US5458797A (en) * 1993-07-20 1995-10-17 Murata Mfg. Co., Ltd. Magnetic material for high frequencies

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6316777U (en) * 1986-07-18 1988-02-03
US5458797A (en) * 1993-07-20 1995-10-17 Murata Mfg. Co., Ltd. Magnetic material for high frequencies

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