JPS5539459A - Deflecting signal generating circuit - Google Patents

Deflecting signal generating circuit

Info

Publication number
JPS5539459A
JPS5539459A JP11316778A JP11316778A JPS5539459A JP S5539459 A JPS5539459 A JP S5539459A JP 11316778 A JP11316778 A JP 11316778A JP 11316778 A JP11316778 A JP 11316778A JP S5539459 A JPS5539459 A JP S5539459A
Authority
JP
Japan
Prior art keywords
scan line
signal generating
converter
steps
line
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.)
Granted
Application number
JP11316778A
Other languages
Japanese (ja)
Other versions
JPS5851707B2 (en
Inventor
Hiroshi Matsuda
Katsuyuki Fujito
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 JP53113167A priority Critical patent/JPS5851707B2/en
Publication of JPS5539459A publication Critical patent/JPS5539459A/en
Publication of JPS5851707B2 publication Critical patent/JPS5851707B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Details Of Television Scanning (AREA)

Abstract

PURPOSE:To realize the variation of the scan line number with a high stability and high accuracy to the temperature change modulus by using the D-A converter possessing the steps more than the least common multiple of the desired scan line number to generate the saw-tooth wave in case the number of the line scan lines is varied. CONSTITUTION:D-A converter 24 possesses the steps more than the least common multiple NA of line scan line numbers Nl-Nm to be switched. And the signal generating means supplies the digital signals increasing every line scan line and in the unit of NA/Nl-NA/Nm(steps) into converter 24 to generate the saw-tooth waves. The signal generating means contains counter 21 to count the line scan line number and ROM23 to receive application of the parallel output of counter 21 as the address and then to read the digital data. As a result, the scan line number can be varied with a high stability and high accuracy to the temperature change modulus.
JP53113167A 1978-09-14 1978-09-14 Deflection signal generation circuit Expired JPS5851707B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53113167A JPS5851707B2 (en) 1978-09-14 1978-09-14 Deflection signal generation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53113167A JPS5851707B2 (en) 1978-09-14 1978-09-14 Deflection signal generation circuit

Publications (2)

Publication Number Publication Date
JPS5539459A true JPS5539459A (en) 1980-03-19
JPS5851707B2 JPS5851707B2 (en) 1983-11-17

Family

ID=14605241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53113167A Expired JPS5851707B2 (en) 1978-09-14 1978-09-14 Deflection signal generation circuit

Country Status (1)

Country Link
JP (1) JPS5851707B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6331274A (en) * 1986-07-24 1988-02-09 Sony Corp Deflection circuit for multiscan television receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6331274A (en) * 1986-07-24 1988-02-09 Sony Corp Deflection circuit for multiscan television receiver

Also Published As

Publication number Publication date
JPS5851707B2 (en) 1983-11-17

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