JPS57181450A - Detector for intermusic of tape recorder - Google Patents

Detector for intermusic of tape recorder

Info

Publication number
JPS57181450A
JPS57181450A JP56067225A JP6722581A JPS57181450A JP S57181450 A JPS57181450 A JP S57181450A JP 56067225 A JP56067225 A JP 56067225A JP 6722581 A JP6722581 A JP 6722581A JP S57181450 A JPS57181450 A JP S57181450A
Authority
JP
Japan
Prior art keywords
intermusic
time constant
switching
reproduction
interrupted
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
JP56067225A
Other languages
Japanese (ja)
Inventor
Shuichi Morio
Masao Ikeda
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP56067225A priority Critical patent/JPS57181450A/en
Publication of JPS57181450A publication Critical patent/JPS57181450A/en
Pending 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
    • G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
    • G11B15/087—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing recorded signals

Landscapes

  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

PURPOSE:To quicken intermusic detection speed and to prevent surely intermusic detection mistake, by changing the time constant for intermusic detection in interlocking with the change of tape speed at reproduction. CONSTITUTION:When a magnetic head is located at the non-recording part between recordings, since the output signal is at low level, the output signal of an amplifier 2 is also at low level and a switching transistor 7 is interrupted. Since a time constant circuit T is connected to the collector of a transistor (TR)7, a base terminal voltage of a switching TR8 is gradually lowered with the time constant determined with a resistor 5 and a capacitor 61 and the TR8 is interrupted only when the base voltage is made lower than the cut-off level A. In response to this interruption, switching TRs 9 and 12 are conductive, a plunger 13 is operative, a driving mechanism (not shown) is operated to switch the state from the fast feed to the stop or reproduction and the intermusic detection is completed.
JP56067225A 1981-05-01 1981-05-01 Detector for intermusic of tape recorder Pending JPS57181450A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56067225A JPS57181450A (en) 1981-05-01 1981-05-01 Detector for intermusic of tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56067225A JPS57181450A (en) 1981-05-01 1981-05-01 Detector for intermusic of tape recorder

Publications (1)

Publication Number Publication Date
JPS57181450A true JPS57181450A (en) 1982-11-08

Family

ID=13338748

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56067225A Pending JPS57181450A (en) 1981-05-01 1981-05-01 Detector for intermusic of tape recorder

Country Status (1)

Country Link
JP (1) JPS57181450A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03104048A (en) * 1989-09-18 1991-05-01 Sanyo Electric Co Ltd Signal detecting circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03104048A (en) * 1989-09-18 1991-05-01 Sanyo Electric Co Ltd Signal detecting circuit

Similar Documents

Publication Publication Date Title
JPS57181450A (en) Detector for intermusic of tape recorder
US4198664A (en) Nonrecorded section detection in a tape recorder apparatus
GB1294572A (en) Tape control device
JPS57111806A (en) Tape recorder
KR860000366Y1 (en) Automatic editing device of tape recorder
JPS57189365A (en) Automatic editor device
JPS55139613A (en) Tape recorder
JPS56117382A (en) Read-in control system in magnetic recording and playback device
GB1565222A (en) Detection of nonrecoreded section of a magnetic tape non-recorded section of magnetic tape
JPS57172512A (en) Magnetic recording and reproducing device
KR860000363Y1 (en) Non-recording control circuit
JPS57100612A (en) Tape recorder
KR870002314Y1 (en) Non-signal record blank formation circuit
JPS5746305A (en) Controller of tape recorder
JPS57210463A (en) Tape recording muting device
JPS56137501A (en) Muting device for record player
JPS5613540A (en) Tape recorder
JPS5733416A (en) Automatic gain control processing system
JPS5771280A (en) Motor servo circuit
JPS5532294A (en) Reproducing unit of recording disc
JPS5746346A (en) Automatic switching device of tape speed for magnetic recorder and reproducer
JPS5567914A (en) Tape recorder
JPS57208652A (en) Reproducing device
JPS5771544A (en) Magnetic recorder and reproducer
JPS57186211A (en) Muting circuit