JPS6429173A - Velocity modulation signal generating circuit - Google Patents

Velocity modulation signal generating circuit

Info

Publication number
JPS6429173A
JPS6429173A JP18624587A JP18624587A JPS6429173A JP S6429173 A JPS6429173 A JP S6429173A JP 18624587 A JP18624587 A JP 18624587A JP 18624587 A JP18624587 A JP 18624587A JP S6429173 A JPS6429173 A JP S6429173A
Authority
JP
Japan
Prior art keywords
signal
output
velocity modulation
converter
converters
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
JP18624587A
Other languages
Japanese (ja)
Other versions
JP2885794B2 (en
Inventor
Masaaki Fujita
Masanobu Tanaka
Hirohiko Sakashita
Namio Yamaguchi
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 JP62186245A priority Critical patent/JP2885794B2/en
Publication of JPS6429173A publication Critical patent/JPS6429173A/en
Application granted granted Critical
Publication of JP2885794B2 publication Critical patent/JP2885794B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To obtain a velocity modulation (VM) signal with high accuracy subject to time adjustment without deteriorating the performance of a signal line by using the output of a 1st D/A converter as a velocity modulation signal and using the output of a 2nd D/A converter as a video signal. CONSTITUTION:Delay circuits 15, 16 retarding a 1st digital signal by a prescribed time, the 1st D/A converters 3, 4 converting the 1st digital signal into an analog signal, and a 2nd D/A converter 17 converting the output signal of the delay circuits 15, 16 into the analog signal are provided and the output of the 1st D/A converters 3, 4 is used as a velocity modulation signal and the output of the 2nd D/A converter 17 is used as a video signal. That is, the delay circuits 15, 16 retard the signal in the digital signal processing circuit, the signal corrected by the time retarded in the VM circuit is extracted as the VM signal with respect to the luminance signal and converted into the analog signal by the D/A converters 3, 4, 17. Thus, the signal with high accuracy is obtained.
JP62186245A 1987-07-24 1987-07-24 Speed modulation signal generation circuit Expired - Fee Related JP2885794B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62186245A JP2885794B2 (en) 1987-07-24 1987-07-24 Speed modulation signal generation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62186245A JP2885794B2 (en) 1987-07-24 1987-07-24 Speed modulation signal generation circuit

Publications (2)

Publication Number Publication Date
JPS6429173A true JPS6429173A (en) 1989-01-31
JP2885794B2 JP2885794B2 (en) 1999-04-26

Family

ID=16184889

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62186245A Expired - Fee Related JP2885794B2 (en) 1987-07-24 1987-07-24 Speed modulation signal generation circuit

Country Status (1)

Country Link
JP (1) JP2885794B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6144830A (en) * 1984-08-10 1986-03-04 Asahi Chem Ind Co Ltd Production of cycloolefin

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5069917A (en) * 1973-10-24 1975-06-11
JPS5236919A (en) * 1975-09-18 1977-03-22 Matsushita Electric Ind Co Ltd Picture quality compensator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5069917A (en) * 1973-10-24 1975-06-11
JPS5236919A (en) * 1975-09-18 1977-03-22 Matsushita Electric Ind Co Ltd Picture quality compensator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6144830A (en) * 1984-08-10 1986-03-04 Asahi Chem Ind Co Ltd Production of cycloolefin

Also Published As

Publication number Publication date
JP2885794B2 (en) 1999-04-26

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees