JPS5552549A - Controller for run speed of magnetic tape - Google Patents

Controller for run speed of magnetic tape

Info

Publication number
JPS5552549A
JPS5552549A JP12600178A JP12600178A JPS5552549A JP S5552549 A JPS5552549 A JP S5552549A JP 12600178 A JP12600178 A JP 12600178A JP 12600178 A JP12600178 A JP 12600178A JP S5552549 A JPS5552549 A JP S5552549A
Authority
JP
Japan
Prior art keywords
signal
output
magnetic tape
speed control
control signal
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
JP12600178A
Other languages
Japanese (ja)
Inventor
Yuji Doi
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 JP12600178A priority Critical patent/JPS5552549A/en
Publication of JPS5552549A publication Critical patent/JPS5552549A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to record a speed control signal and sound signal on the same track by recording a sum signal of the speed control signal and sound signal and their difference signal on a magnetic tape and then by reproducing them for controlling the speed of the magnetic tape.
CONSTITUTION: On every arrival of a rectangular pulse signal at input side 11, reference oscillation circuit sends an alternating-current signal of audio frequency range, cycle by cycle, to output side 12. This output is led to plus and minus-side terminals of operational amplifiers 2 and 3 and a sound signal is to the plus-side therminals of amplifiers 2 and 3 via terminal 4. As a result, the sum signal and difference signal of both signals appear at the output sides of amplifiers 2 and 3 and are recorded on magnetic tape 7 through recording heads 8 and 9. Both signals on tape 7 are reproduced by reproducing heads 10 and 11 after time T and led to operational amplifiers 12 and 13. Consequently, amplifier 12 is supplied with the sound signal only and amplifier 13 with the speed control signal only. The speed control signal is inputted to phase comparator circuit 16, where it is phase-compared with the output of oscillation circuit 19, so that a take-up reel will be driven by the output.
COPYRIGHT: (C)1980,JPO&Japio
JP12600178A 1978-10-12 1978-10-12 Controller for run speed of magnetic tape Pending JPS5552549A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12600178A JPS5552549A (en) 1978-10-12 1978-10-12 Controller for run speed of magnetic tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12600178A JPS5552549A (en) 1978-10-12 1978-10-12 Controller for run speed of magnetic tape

Publications (1)

Publication Number Publication Date
JPS5552549A true JPS5552549A (en) 1980-04-17

Family

ID=14924260

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12600178A Pending JPS5552549A (en) 1978-10-12 1978-10-12 Controller for run speed of magnetic tape

Country Status (1)

Country Link
JP (1) JPS5552549A (en)

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