JPS5492712A - Magnetic recorder-reproducer - Google Patents

Magnetic recorder-reproducer

Info

Publication number
JPS5492712A
JPS5492712A JP16046677A JP16046677A JPS5492712A JP S5492712 A JPS5492712 A JP S5492712A JP 16046677 A JP16046677 A JP 16046677A JP 16046677 A JP16046677 A JP 16046677A JP S5492712 A JPS5492712 A JP S5492712A
Authority
JP
Japan
Prior art keywords
tape
recording
speeds
detecting means
speed detecting
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
JP16046677A
Other languages
Japanese (ja)
Other versions
JPS6040087B2 (en
Inventor
Haruo Suenaga
Hisayoshi Inoue
Mitsunobu Furumoto
Kunikazu Ozawa
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 JP52160466A priority Critical patent/JPS6040087B2/en
Publication of JPS5492712A publication Critical patent/JPS5492712A/en
Publication of JPS6040087B2 publication Critical patent/JPS6040087B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE: To perform recording by detecting stable speeds irrespective of tape speeds and prevent head cutting of sounds by interposing a tape speed detecting means to the tape running system and controlling the recording start of a magnetic recording-reproducing circuit with the signal thereof.
CONSTITUTION: This apparatus is constituted by a speed detecting means consisting of a pulse generator which is provided with a glass disc 20 provided with plural non-transparent parts at the same pitch added to the running system path of a magnetic tape 3 and rotating as the tape 3 runs and has light emitting element 2 and photo detector 22 above and below the same, an F/V converter 24 in which the output signal of a frequency generating circuit 28 shaping the pulse outputs of said generator with a transistor 23 is its input signal and a comparator 25 which compares the output voltage of the converter 24 and reference voltages E1 thru E3 as well as the means of controlling the recording start of the magnetic recording- reproducing circuit with the detection signal from the speed detecting means. Thereby, recording may be performed by stably detecting speeds irrespective of the tape speeds and the head cutting of sounds may be prevented.
COPYRIGHT: (C)1979,JPO&Japio
JP52160466A 1977-12-29 1977-12-29 magnetic recording and reproducing device Expired JPS6040087B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52160466A JPS6040087B2 (en) 1977-12-29 1977-12-29 magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52160466A JPS6040087B2 (en) 1977-12-29 1977-12-29 magnetic recording and reproducing device

Publications (2)

Publication Number Publication Date
JPS5492712A true JPS5492712A (en) 1979-07-23
JPS6040087B2 JPS6040087B2 (en) 1985-09-09

Family

ID=15715545

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52160466A Expired JPS6040087B2 (en) 1977-12-29 1977-12-29 magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS6040087B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5865618U (en) * 1981-10-29 1983-05-04 ティアック株式会社 tape recorder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5865618U (en) * 1981-10-29 1983-05-04 ティアック株式会社 tape recorder

Also Published As

Publication number Publication date
JPS6040087B2 (en) 1985-09-09

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