JPS55163983A - Digital convergence unit - Google Patents

Digital convergence unit

Info

Publication number
JPS55163983A
JPS55163983A JP7171579A JP7171579A JPS55163983A JP S55163983 A JPS55163983 A JP S55163983A JP 7171579 A JP7171579 A JP 7171579A JP 7171579 A JP7171579 A JP 7171579A JP S55163983 A JPS55163983 A JP S55163983A
Authority
JP
Japan
Prior art keywords
adjustment
adjusting function
coarse
written
memory
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
JP7171579A
Other languages
Japanese (ja)
Inventor
Katsumi Morita
Kunihiko Mototani
Susumu Tsujihara
Katsumi Mitsuda
Minoru Takeda
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7171579A priority Critical patent/JPS55163983A/en
Publication of JPS55163983A publication Critical patent/JPS55163983A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

PURPOSE:To shorten the time of the adjustment of convergence by providing the coarse adjusting function of making the coarse adjustment of the entire screen and the fine adjusting function of making the fine adjustment. CONSTITUTION:To make a coarse adjustment, a preset representative point, e.g., N1 is selected and a correction value is set in data reversible counter 2 and written in one-frame memory 17 and register 30. Next, the contents of register 30 are multiplied 31 by the coefficient of ROM32 to find representative points N2-N4, which are written in memory 17. Similarly, correction values of other representative points S1-, E1- and W1- are written in memory 17. Then, they are read out and after interpolated, D/A-converted 9 to output convergence siganals by way of LPF10. Thus, the coarse adjusting function is provided in addition to the fine adjusting function, so that the time of adjustment can be shortened.
JP7171579A 1979-06-07 1979-06-07 Digital convergence unit Pending JPS55163983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7171579A JPS55163983A (en) 1979-06-07 1979-06-07 Digital convergence unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7171579A JPS55163983A (en) 1979-06-07 1979-06-07 Digital convergence unit

Publications (1)

Publication Number Publication Date
JPS55163983A true JPS55163983A (en) 1980-12-20

Family

ID=13468494

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7171579A Pending JPS55163983A (en) 1979-06-07 1979-06-07 Digital convergence unit

Country Status (1)

Country Link
JP (1) JPS55163983A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56127272A (en) * 1980-03-13 1981-10-05 Tokyo Electric Co Ltd Electronic cash register
JPS5914451U (en) * 1982-07-20 1984-01-28 三洋電機株式会社 Digital convergence circuit
DE19704775A1 (en) * 1997-02-08 1998-08-13 Thomson Brandt Gmbh Method for correcting convergence in a projection television set
WO2002093941A1 (en) * 2001-05-16 2002-11-21 Sony Corporation Restration adjuser and registration adjusting method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56127272A (en) * 1980-03-13 1981-10-05 Tokyo Electric Co Ltd Electronic cash register
JPS5914451U (en) * 1982-07-20 1984-01-28 三洋電機株式会社 Digital convergence circuit
DE19704775A1 (en) * 1997-02-08 1998-08-13 Thomson Brandt Gmbh Method for correcting convergence in a projection television set
US6111616A (en) * 1997-02-08 2000-08-29 Deutsche Thomson Brandt Gmbh Method for correcting the convergence in a projection television receiver
WO2002093941A1 (en) * 2001-05-16 2002-11-21 Sony Corporation Restration adjuser and registration adjusting method

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