JPS54133109A - Magnetic recorder-reproducer - Google Patents

Magnetic recorder-reproducer

Info

Publication number
JPS54133109A
JPS54133109A JP4106078A JP4106078A JPS54133109A JP S54133109 A JPS54133109 A JP S54133109A JP 4106078 A JP4106078 A JP 4106078A JP 4106078 A JP4106078 A JP 4106078A JP S54133109 A JPS54133109 A JP S54133109A
Authority
JP
Japan
Prior art keywords
tape
reel
speed
photoelectric
inputted
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
JP4106078A
Other languages
Japanese (ja)
Inventor
Mitsunobu Furumoto
Hisayoshi Inoue
Kunikazu Ozawa
Haruo Suenaga
Original Assignee
Matsushita Electric Ind 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 Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Priority to JP4106078A priority Critical patent/JPS54133109A/en
Publication of JPS54133109A publication Critical patent/JPS54133109A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To achieve the stabilization of tape feed speed by controlling the motor of a take-up reel according to the running speed of tape thereby giving fixed tension to the tape.
CONSTITUTION: A pulse generator 23 consisting of photoelectric elements 18, 19 and a multiplicity of non-transparent patterns 17 are provided to reversing roller 11. The output signal thereof is inputted to a microprocessor 24 and the revolutions of a take-up drive motor 32a are controlled according to the tape speed. On the other hand, the outputs of the oscillators being reel revolution number detecting means constiting of photoelectric elements and discs having through-holes mounted to reels are inputted to the processor 24 to control the supply voltage of the drive motor 32 for supply reel, thereby giving specified fixed tension to the tape. Such constitution enables all tape feed speeds to be stably set.
COPYRIGHT: (C)1979,JPO&Japio
JP4106078A 1978-04-06 1978-04-06 Magnetic recorder-reproducer Pending JPS54133109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4106078A JPS54133109A (en) 1978-04-06 1978-04-06 Magnetic recorder-reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4106078A JPS54133109A (en) 1978-04-06 1978-04-06 Magnetic recorder-reproducer

Publications (1)

Publication Number Publication Date
JPS54133109A true JPS54133109A (en) 1979-10-16

Family

ID=12597868

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4106078A Pending JPS54133109A (en) 1978-04-06 1978-04-06 Magnetic recorder-reproducer

Country Status (1)

Country Link
JP (1) JPS54133109A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5690456A (en) * 1979-12-25 1981-07-22 Toshiba Anpetsukusu Kk Tape speed control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5690456A (en) * 1979-12-25 1981-07-22 Toshiba Anpetsukusu Kk Tape speed control system
JPS5922300B2 (en) * 1979-12-25 1984-05-25 Ampex

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