JPS5545144A - Pcm recorder - Google Patents

Pcm recorder

Info

Publication number
JPS5545144A
JPS5545144A JP11792778A JP11792778A JPS5545144A JP S5545144 A JPS5545144 A JP S5545144A JP 11792778 A JP11792778 A JP 11792778A JP 11792778 A JP11792778 A JP 11792778A JP S5545144 A JPS5545144 A JP S5545144A
Authority
JP
Japan
Prior art keywords
signal
pcm
data
vtr
elongated
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
JP11792778A
Other languages
Japanese (ja)
Inventor
Hiroyuki Kimura
Yasunori Kanazawa
Takashi Hoshino
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11792778A priority Critical patent/JPS5545144A/en
Publication of JPS5545144A publication Critical patent/JPS5545144A/en
Pending legal-status Critical Current

Links

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

PURPOSE: To modulate a PCM signal under no influence of the jitters of VTR by forming a regenerated PCM signal to be elongated of a synchronizing signal data signal and data discrimination signal and then by controlling a window gate through the discrimination signal.
CONSTITUTION: Synchronizing signal separator circuit 21 separates a PCM signal having beeing regenerated by VTR and elongated into synchronizing signal 60 forming the PCM signal, a data signal following with a space part between, and data discrimination signal 68 at the head part of the data signal, and RF type FF is reset by signal 60 and set by signal 68. The set output of this FF is delayed by a fixed period of time by delay circuit 71 to close window gate 56, so that the PCM signal will stably by synchronized and demodulated, even at the time of the following-up decrease of PLL 50, when the jitters of VTR are generated by window pulses of a frequency N times as high as that of signal 60 outputted from PLL 50 by signal 60 before being elongated through a memory, etc.
COPYRIGHT: (C)1980,JPO&Japio
JP11792778A 1978-09-27 1978-09-27 Pcm recorder Pending JPS5545144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11792778A JPS5545144A (en) 1978-09-27 1978-09-27 Pcm recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11792778A JPS5545144A (en) 1978-09-27 1978-09-27 Pcm recorder

Publications (1)

Publication Number Publication Date
JPS5545144A true JPS5545144A (en) 1980-03-29

Family

ID=14723634

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11792778A Pending JPS5545144A (en) 1978-09-27 1978-09-27 Pcm recorder

Country Status (1)

Country Link
JP (1) JPS5545144A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08226169A (en) * 1995-02-22 1996-09-03 Yoshinaga Nojima Expansion reinforcing steel material for wooden earthquake resistant structure including brace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08226169A (en) * 1995-02-22 1996-09-03 Yoshinaga Nojima Expansion reinforcing steel material for wooden earthquake resistant structure including brace

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