JPS54136122A - Automatic control system for frame synchronizer - Google Patents

Automatic control system for frame synchronizer

Info

Publication number
JPS54136122A
JPS54136122A JP4404478A JP4404478A JPS54136122A JP S54136122 A JPS54136122 A JP S54136122A JP 4404478 A JP4404478 A JP 4404478A JP 4404478 A JP4404478 A JP 4404478A JP S54136122 A JPS54136122 A JP S54136122A
Authority
JP
Japan
Prior art keywords
signal
output
vtr
pilot
switch
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
JP4404478A
Other languages
Japanese (ja)
Other versions
JPS6043708B2 (en
Inventor
Mikio Shimizu
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP53044044A priority Critical patent/JPS6043708B2/en
Publication of JPS54136122A publication Critical patent/JPS54136122A/en
Publication of JPS6043708B2 publication Critical patent/JPS6043708B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Synchronizing For Television (AREA)
  • Television Signal Processing For Recording (AREA)
  • Television Systems (AREA)

Abstract

PURPOSE: To eliminate occurrence of the screen shock completely by adding the pilot singal showing the VTR output to the VTR output and thus securing an automatic switching to the operation mode instantaneously for the input signal.
CONSTITUTION: The band corresponding to pilot signal p is eliminated for the signal given from VTR1 through band eliminating filter 2. Then at pilot signal generator 3, the signal is mixed with the VTR output through mixer 4 which generated the fixed frequency of, for example, 4.5MHz, and the output is supplied to switch 5. While the output of camera 6 featuring the stable time axis unlike the VTR output is supplied concurrently to switch 5. The both output are then switched and delivered to be transmitted to base station 8 through microwave repeating installation 7. And pilot signal receiver 10 at station 8 detects presence or absence of signal p to send both the mode switch signal and the writing inhibition control signal to frame synchronizer FS11. At the same time, TBC adaptor 9 transmits the synchronous signal, the video signal and the clock pulse to FS11 when the VTR signal is coming in.
COPYRIGHT: (C)1979,JPO&Japio
JP53044044A 1978-04-13 1978-04-13 Automatic control method of frame synchronizer Expired JPS6043708B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53044044A JPS6043708B2 (en) 1978-04-13 1978-04-13 Automatic control method of frame synchronizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53044044A JPS6043708B2 (en) 1978-04-13 1978-04-13 Automatic control method of frame synchronizer

Publications (2)

Publication Number Publication Date
JPS54136122A true JPS54136122A (en) 1979-10-23
JPS6043708B2 JPS6043708B2 (en) 1985-09-30

Family

ID=12680611

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53044044A Expired JPS6043708B2 (en) 1978-04-13 1978-04-13 Automatic control method of frame synchronizer

Country Status (1)

Country Link
JP (1) JPS6043708B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61130033A (en) * 1984-11-28 1986-06-17 四国化工機株式会社 Production unit for vessel blank
JPS63164775A (en) * 1986-12-26 1988-07-08 Matsushita Electric Ind Co Ltd Television signal processing unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6445597U (en) * 1987-09-16 1989-03-20

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61130033A (en) * 1984-11-28 1986-06-17 四国化工機株式会社 Production unit for vessel blank
JPS63164775A (en) * 1986-12-26 1988-07-08 Matsushita Electric Ind Co Ltd Television signal processing unit

Also Published As

Publication number Publication date
JPS6043708B2 (en) 1985-09-30

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