JPS5527785A - Video modulator - Google Patents

Video modulator

Info

Publication number
JPS5527785A
JPS5527785A JP10129878A JP10129878A JPS5527785A JP S5527785 A JPS5527785 A JP S5527785A JP 10129878 A JP10129878 A JP 10129878A JP 10129878 A JP10129878 A JP 10129878A JP S5527785 A JPS5527785 A JP S5527785A
Authority
JP
Japan
Prior art keywords
carrier
oscillator
output
signal
pll
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
JP10129878A
Other languages
Japanese (ja)
Other versions
JPS6136426B2 (en
Inventor
Akiyuki Yoshisato
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.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP10129878A priority Critical patent/JPS5527785A/en
Publication of JPS5527785A publication Critical patent/JPS5527785A/en
Publication of JPS6136426B2 publication Critical patent/JPS6136426B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To stabilize the output frequency as well as to prevent occurrence of the undesired spuriousness by controlling the carrier oscillators for the image and the voice with several units of PLL which maintain the fixed frequency.
CONSTITUTION: The video signal is modulated 2 after process 1 by the synchronous clamping and others; while the aural signal is delivered in the form of the TV signal of the UHF band after modulation 20 of the carrier and mixture 9 of both modulation signals. In this case, video carrier oscillator 13 is controlled by PLL13∼ 16, ahd the differential frequency between the output of oscillator 13 and the output of aural carrier oscillator 20 is controlled fixedly by PLL20∼23. Each PLL doubles reference oscillator 19.
COPYRIGHT: (C)1980,JPO&Japio
JP10129878A 1978-08-19 1978-08-19 Video modulator Granted JPS5527785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10129878A JPS5527785A (en) 1978-08-19 1978-08-19 Video modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10129878A JPS5527785A (en) 1978-08-19 1978-08-19 Video modulator

Publications (2)

Publication Number Publication Date
JPS5527785A true JPS5527785A (en) 1980-02-28
JPS6136426B2 JPS6136426B2 (en) 1986-08-18

Family

ID=14296907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10129878A Granted JPS5527785A (en) 1978-08-19 1978-08-19 Video modulator

Country Status (1)

Country Link
JP (1) JPS5527785A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5981169U (en) * 1982-11-22 1984-06-01 パイオニア株式会社 Video signal reproducing device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6150018U (en) * 1984-09-06 1986-04-04

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5981169U (en) * 1982-11-22 1984-06-01 パイオニア株式会社 Video signal reproducing device

Also Published As

Publication number Publication date
JPS6136426B2 (en) 1986-08-18

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