JPS5654612A - Muting control circuit for reproducer of pcm signal - Google Patents

Muting control circuit for reproducer of pcm signal

Info

Publication number
JPS5654612A
JPS5654612A JP12868179A JP12868179A JPS5654612A JP S5654612 A JPS5654612 A JP S5654612A JP 12868179 A JP12868179 A JP 12868179A JP 12868179 A JP12868179 A JP 12868179A JP S5654612 A JPS5654612 A JP S5654612A
Authority
JP
Japan
Prior art keywords
muting
reproduction
signal
becomes steady
writing
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
JP12868179A
Other languages
Japanese (ja)
Other versions
JPS631665B2 (en
Inventor
Hiromi Sasao
Yukio Fujimagari
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.)
TRIO KENWOOD CORP
Kenwood KK
Original Assignee
TRIO KENWOOD CORP
Kenwood KK
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 TRIO KENWOOD CORP, Kenwood KK filed Critical TRIO KENWOOD CORP
Priority to JP12868179A priority Critical patent/JPS5654612A/en
Publication of JPS5654612A publication Critical patent/JPS5654612A/en
Publication of JPS631665B2 publication Critical patent/JPS631665B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To perform the optimum muting, by producing the muting signal for the period during which the PCM reproduction system becomes steady and when the difference between the writing and reading addresses of the reproduction buffer memory is larger than the prescribed value and in case when the prescribed number of the horizontal synchronous pulses is dropped out continuously.
CONSTITUTION: The monostable multivibrator 1, when triggered by the vertical synchronous signal, produces the pulse having the duration corresponding to the period during which the reproduction system becomes steady and then sets the JK- type FF3. Thus the FF3 produces the low-level output Q' in the form of the muting signal, and at the same time inhibits the trigger input to the mono-multi 1 by the output Q. Thus the muting is continued until the reproduction becomes steady. On the other hand, the FF3 is reset by the high-level output Q' of the retrigger enable mono-multi 2 when the horizontal synchronous signals are dropped out in more than the prescribed number. And thus the muting signal is produced according to the abnormal stoppage of the reproduction, recording and others. In the same way, the muting signal is produced when the difference between the writing and reading addresses to the reproduction buffer memory 8 becomes larger than the prescribed value. As a result, the optimum muting is performed when necessary.
COPYRIGHT: (C)1981,JPO&Japio
JP12868179A 1979-10-05 1979-10-05 Muting control circuit for reproducer of pcm signal Granted JPS5654612A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12868179A JPS5654612A (en) 1979-10-05 1979-10-05 Muting control circuit for reproducer of pcm signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12868179A JPS5654612A (en) 1979-10-05 1979-10-05 Muting control circuit for reproducer of pcm signal

Publications (2)

Publication Number Publication Date
JPS5654612A true JPS5654612A (en) 1981-05-14
JPS631665B2 JPS631665B2 (en) 1988-01-13

Family

ID=14990797

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12868179A Granted JPS5654612A (en) 1979-10-05 1979-10-05 Muting control circuit for reproducer of pcm signal

Country Status (1)

Country Link
JP (1) JPS5654612A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59152509A (en) * 1983-02-18 1984-08-31 Sanyo Electric Co Ltd Muting device
JPS6013359A (en) * 1983-07-01 1985-01-23 Matsushita Electric Ind Co Ltd Pulse code modulation recording and reproducing device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01137772U (en) * 1988-03-07 1989-09-20
JPH0291671U (en) * 1988-12-27 1990-07-20
JPH06210219A (en) * 1993-01-20 1994-08-02 Kogashiwa Takeshi Masking film for coating

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59152509A (en) * 1983-02-18 1984-08-31 Sanyo Electric Co Ltd Muting device
JPS6013359A (en) * 1983-07-01 1985-01-23 Matsushita Electric Ind Co Ltd Pulse code modulation recording and reproducing device
JPH0520826B2 (en) * 1983-07-01 1993-03-22 Matsushita Electric Ind Co Ltd

Also Published As

Publication number Publication date
JPS631665B2 (en) 1988-01-13

Similar Documents

Publication Publication Date Title
JPS5766515A (en) Memory address control system
JPS5654612A (en) Muting control circuit for reproducer of pcm signal
JPS54143110A (en) Pcm signal tape cutting device
JPS55113172A (en) Detection system for abnormal reproduction state
JPS5580814A (en) Pcm recorder/reproducer
JPS54107329A (en) Recording method of magnetic tape affixing to magnetic card
JPS5584086A (en) Automatic music selector device for tape recorder
JPS5514502A (en) Recording and reproducing unit of pcm system
JPS5339033A (en) Logic tracer
JPS51123118A (en) Method of playback of field signal
JPS5584008A (en) Recorder/reproducer of digital signal
JPS53142210A (en) Pcm recorder/reproducer
JPS53112021A (en) File unit for audio and video
JPS52102012A (en) Signal recorder/reproducer by pcm system
JPS56115071A (en) Histograming process method for picture reception data
JPS53120412A (en) Data recording and reproducing system
JPS5428107A (en) Drop-out detecting system
JPS5384705A (en) Signal reproducing system
JPS53142211A (en) Pcm recorder/reproducer
JPS5277713A (en) Signal recording and reproduction system
JPS5645A (en) Control signal detection system
JPS55157115A (en) Pcm recording and reproducing device
JPS53146520A (en) Storage recording system
JPS5349910A (en) Video signal process system using rotary recording medium
JPS522413A (en) Magnetic recording and reading system