JPS57117146A - Detection circuit for non-recording section - Google Patents

Detection circuit for non-recording section

Info

Publication number
JPS57117146A
JPS57117146A JP56002331A JP233181A JPS57117146A JP S57117146 A JPS57117146 A JP S57117146A JP 56002331 A JP56002331 A JP 56002331A JP 233181 A JP233181 A JP 233181A JP S57117146 A JPS57117146 A JP S57117146A
Authority
JP
Japan
Prior art keywords
signal
short
recording
noise
reproducing
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
JP56002331A
Other languages
Japanese (ja)
Other versions
JPH0232694B2 (en
Inventor
Tsuneo Okubo
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56002331A priority Critical patent/JPH0232694B2/en
Publication of JPS57117146A publication Critical patent/JPS57117146A/en
Publication of JPH0232694B2 publication Critical patent/JPH0232694B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing

Abstract

PURPOSE:To avoid malfunction by a short signal such as noise, by using a time constant circuit so that FF circuits can not be inverted when no signals are received within a specified time or more. CONSTITUTION:When a reproducing signal (a) is absent and non-recording is made, a DC signal is lost, a transistor 10 turns on, and the state of a tape recorder is switched from a normal reproducing state into a stop state or from high speed reproduction into the normal one. When a positive pulse signal is absent, a transistor (TR) 13 turns on. If a signal such as noise is recorded only for a short time at non-recording, the TR13 is kept short-circuit. Thus, when a short reproducing signal b is lost, even if a signal is generated in a non-recording signal generating circuit 4, operation is made that no pulse signal is applied to a control circuit 8. Thus, malfunction due to a short signal such as noise can be avoided.
JP56002331A 1981-01-09 1981-01-09 JOHOKIROKUSAISEIKI Expired - Lifetime JPH0232694B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56002331A JPH0232694B2 (en) 1981-01-09 1981-01-09 JOHOKIROKUSAISEIKI

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56002331A JPH0232694B2 (en) 1981-01-09 1981-01-09 JOHOKIROKUSAISEIKI

Publications (2)

Publication Number Publication Date
JPS57117146A true JPS57117146A (en) 1982-07-21
JPH0232694B2 JPH0232694B2 (en) 1990-07-23

Family

ID=11526324

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56002331A Expired - Lifetime JPH0232694B2 (en) 1981-01-09 1981-01-09 JOHOKIROKUSAISEIKI

Country Status (1)

Country Link
JP (1) JPH0232694B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59207041A (en) * 1983-05-07 1984-11-24 Victor Co Of Japan Ltd Magnetic reproducing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59207041A (en) * 1983-05-07 1984-11-24 Victor Co Of Japan Ltd Magnetic reproducing device

Also Published As

Publication number Publication date
JPH0232694B2 (en) 1990-07-23

Similar Documents

Publication Publication Date Title
JPS5782209A (en) Pcm-video switching device
JPS57203229A (en) Magnetic recorder and reproducer
KR920001437A (en) VTR
JPS553271A (en) Rotary head type magnetic picture recorder/reproducer
JPS57117146A (en) Detection circuit for non-recording section
JPS5321908A (en) Phase control circuit for video tape recorder
JPS55157149A (en) Magnetic recording and reproducing device
KR880000583Y1 (en) Automatic recording delay apparatus
JPS5580810A (en) Magnetic recorder/reproducer
JPS5528547A (en) Magnetic recorder/reproducer
JPS56117382A (en) Read-in control system in magnetic recording and playback device
JPS5417709A (en) Changeover circuit of tape recorder
JPS5317310A (en) Operation control system of video tape recorder
JPS5580869A (en) Recorder/reproducer
JPS54122106A (en) Video signal recorder
JPS5390909A (en) Tracking control system for magnetic picture recorder/reproducer
JPS576447A (en) Controlling circuit of tape recorder
JPS5377511A (en) Recorder/reproducer
JPS5782211A (en) Tape recorder
JPS5319713A (en) Signal detection control circuit
JPS5383712A (en) Tape recorder
JPS647372A (en) Recorder
JPS5760505A (en) Magnetic recording and reproducing device
JPS5782212A (en) Tape recorder
JPS57130207A (en) Magnetic reproduction system