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JPS54119216A - Information signal recorder-reproducer - Google Patents

Information signal recorder-reproducer

Info

Publication number
JPS54119216A
JPS54119216A JP2621378A JP2621378A JPS54119216A JP S54119216 A JPS54119216 A JP S54119216A JP 2621378 A JP2621378 A JP 2621378A JP 2621378 A JP2621378 A JP 2621378A JP S54119216 A JPS54119216 A JP S54119216A
Authority
JP
Japan
Prior art keywords
information signal
disc
recording
mode
recording mode
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
JP2621378A
Other languages
Japanese (ja)
Inventor
Toshio Kaneshiro
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP2621378A priority Critical patent/JPS54119216A/en
Publication of JPS54119216A publication Critical patent/JPS54119216A/en
Pending legal-status Critical Current

Links

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)

Abstract

PURPOSE: To reproduce the information signal from discs in always good condition by letting the tracking control system be an open loop at the recording mode and a closed loop at the reproducing mode and applying a part of the control signal even to a transfer mechanism.
CONSTITUTION: When the apparatus in the recording mode and its switches S1 thru S5 are hold set to the stationary contact R side, the transfer of a magnetic head H in the diametral direction of a magnetic disc D by a transfer mechanism SM becomes constant and desired recording track patterns are recorded and formed on the disc D. The tracking control drive mechanism TSM in the recording mode receives the fixed bias from a bias power source BS via switch S3 and makes recording operation in the state where it is subjcted to the fixed displacement in correspondence thereto. Next, in the reproducing mode, the information signal on the disc D is read with the head H and the output signal having passed through a high pass filter HPF is demodulated as the main information signal by a demodulator DMOD. Thereby, the information signal from the disc may be reproduced in the good condition.
COPYRIGHT: (C)1979,JPO&Japio
JP2621378A 1978-03-08 1978-03-08 Information signal recorder-reproducer Pending JPS54119216A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2621378A JPS54119216A (en) 1978-03-08 1978-03-08 Information signal recorder-reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2621378A JPS54119216A (en) 1978-03-08 1978-03-08 Information signal recorder-reproducer

Publications (1)

Publication Number Publication Date
JPS54119216A true JPS54119216A (en) 1979-09-17

Family

ID=12187143

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2621378A Pending JPS54119216A (en) 1978-03-08 1978-03-08 Information signal recorder-reproducer

Country Status (1)

Country Link
JP (1) JPS54119216A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5755567A (en) * 1980-09-22 1982-04-02 Matsushita Electric Ind Co Ltd Tracking controller
JPS57181482A (en) * 1981-05-01 1982-11-08 Toshiba Corp Disc device
JPS58147858A (en) * 1982-02-26 1983-09-02 Matsushita Electric Ind Co Ltd Recording and reproducing device
JPS58185068A (en) * 1982-04-23 1983-10-28 Matsushita Electric Ind Co Ltd Recording and reproducing device
JPS593750A (en) * 1982-06-30 1984-01-10 Hitachi Ltd Slider control circuit of video disk player
JPS5992477A (en) * 1982-11-18 1984-05-28 Matsushita Electric Ind Co Ltd Signal reproducer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5755567A (en) * 1980-09-22 1982-04-02 Matsushita Electric Ind Co Ltd Tracking controller
JPS636939B2 (en) * 1980-09-22 1988-02-13 Matsushita Electric Ind Co Ltd
JPS57181482A (en) * 1981-05-01 1982-11-08 Toshiba Corp Disc device
JPS58147858A (en) * 1982-02-26 1983-09-02 Matsushita Electric Ind Co Ltd Recording and reproducing device
JPS58185068A (en) * 1982-04-23 1983-10-28 Matsushita Electric Ind Co Ltd Recording and reproducing device
JPS593750A (en) * 1982-06-30 1984-01-10 Hitachi Ltd Slider control circuit of video disk player
JPS5992477A (en) * 1982-11-18 1984-05-28 Matsushita Electric Ind Co Ltd Signal reproducer

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