JPS55157115A - Pcm recording and reproducing device - Google Patents

Pcm recording and reproducing device

Info

Publication number
JPS55157115A
JPS55157115A JP6421779A JP6421779A JPS55157115A JP S55157115 A JPS55157115 A JP S55157115A JP 6421779 A JP6421779 A JP 6421779A JP 6421779 A JP6421779 A JP 6421779A JP S55157115 A JPS55157115 A JP S55157115A
Authority
JP
Japan
Prior art keywords
signal
address
counter
vertical synchronizing
phase
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
JP6421779A
Other languages
Japanese (ja)
Inventor
Sadanobu Ishida
Masayuki Ishida
Kiyomoto Nishi
Kunimaro Tanaka
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6421779A priority Critical patent/JPS55157115A/en
Publication of JPS55157115A publication Critical patent/JPS55157115A/en
Pending legal-status Critical Current

Links

Landscapes

  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE: To pick up stably true PCM data from reproduced signals, by causing the specific address of a counting circuit to synchronize with the vertical synchronizing signal when the extracted vertical synchronizing signal and this specific address do not agree with each other in respect to phase for a prescribed time.
CONSTITUTION: When respective signals E and G of address "0" from pattern detector 28 and decoder 31 do not agree with each other in respect to phase, n- notation counter 32 counts count signals H n times and outputs count-up signal J to open gate 33, and therefore, signal E passes to reset counter 29. Then, the address of counter 29 is changed; and since decoder output G' of address "0" has the same phase as signal E, reset signal I resets counter 32 and stops the output of signal J to close gate 33, and counter 29 repeats the address state to cause decoder output G' of address "0" to synchronize with the front of vertical synchronizing signal SV. As a result, a true PCM signal is picked up stably from the reproduced signal.
COPYRIGHT: (C)1980,JPO&Japio
JP6421779A 1979-05-24 1979-05-24 Pcm recording and reproducing device Pending JPS55157115A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6421779A JPS55157115A (en) 1979-05-24 1979-05-24 Pcm recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6421779A JPS55157115A (en) 1979-05-24 1979-05-24 Pcm recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS55157115A true JPS55157115A (en) 1980-12-06

Family

ID=13251697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6421779A Pending JPS55157115A (en) 1979-05-24 1979-05-24 Pcm recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS55157115A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61137283A (en) * 1984-12-07 1986-06-24 Matsushita Electric Ind Co Ltd Timing signal generator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52102012A (en) * 1976-02-24 1977-08-26 Sony Corp Signal recorder/reproducer by pcm system
JPS5353918A (en) * 1976-10-27 1978-05-16 Nec Corp Detecting method for vertical synchronizing signal and its circuit
JPS53143307A (en) * 1977-05-20 1978-12-13 Nec Corp System for recording and reproducing modulated pulse codes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52102012A (en) * 1976-02-24 1977-08-26 Sony Corp Signal recorder/reproducer by pcm system
JPS5353918A (en) * 1976-10-27 1978-05-16 Nec Corp Detecting method for vertical synchronizing signal and its circuit
JPS53143307A (en) * 1977-05-20 1978-12-13 Nec Corp System for recording and reproducing modulated pulse codes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61137283A (en) * 1984-12-07 1986-06-24 Matsushita Electric Ind Co Ltd Timing signal generator

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