JPS6437764A - Optical disk recording and reproducing device - Google Patents

Optical disk recording and reproducing device

Info

Publication number
JPS6437764A
JPS6437764A JP19311987A JP19311987A JPS6437764A JP S6437764 A JPS6437764 A JP S6437764A JP 19311987 A JP19311987 A JP 19311987A JP 19311987 A JP19311987 A JP 19311987A JP S6437764 A JPS6437764 A JP S6437764A
Authority
JP
Japan
Prior art keywords
optical disk
rotational control
disk
control means
revolutions
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
JP19311987A
Other languages
Japanese (ja)
Other versions
JP2589317B2 (en
Inventor
Hiroshi Fuji
Tsuneo Fujiwara
Takashi Iwaki
Tomiyuki Numata
Kentaro Tsuji
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 JP62193119A priority Critical patent/JP2589317B2/en
Priority to CA000573524A priority patent/CA1311051C/en
Priority to DE88307059T priority patent/DE3884100T2/en
Priority to EP19880307059 priority patent/EP0302680B1/en
Priority to US07/225,892 priority patent/US5010540A/en
Publication of JPS6437764A publication Critical patent/JPS6437764A/en
Application granted granted Critical
Publication of JP2589317B2 publication Critical patent/JP2589317B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Rotational Drive Of Disk (AREA)

Abstract

PURPOSE:To promote the reliability of a reproducing signal by providing a 1st disk rotational control means for such a rotational control that a number of revolutions of an optical disk should correspond with a target number of revolutions and a 2nd disk rotational control means for such a rotational control that a linear speed of the optical disk should correspond with a fixed linear speed set by the 1st disk rotational control means. CONSTITUTION:In a signal recording part of the optical disk 1 under its reproducing operation, the linear speed of the optical disk detected based on a mark signal included in the reproducing signal is controlled by the 2nd disk rotational control means 8 to be correspondent to the fixed linear speed set by the 1st disk rotational control means 10. On the other hand, in a non-recording part of the signal, the number of revolutions of the optical disk 1 detected by a number of revolutions detecting means 5 is controlled by the 1st disk rotational control means 10 to be correspondent to the target number of revolutions settled according to a tracking radius position on the optical disk 1 to obtain a fixed linear speed. By this method, a reliable speed control is performed, and a good quality reproducing signal can hence be obtained.
JP62193119A 1987-07-31 1987-07-31 Optical disk recording and playback device Expired - Fee Related JP2589317B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62193119A JP2589317B2 (en) 1987-07-31 1987-07-31 Optical disk recording and playback device
CA000573524A CA1311051C (en) 1987-07-31 1988-07-29 Apparatus for recording and reproducing information on and from an optical disk
DE88307059T DE3884100T2 (en) 1987-07-31 1988-07-29 Device for recording and reproducing data on an optical disc.
EP19880307059 EP0302680B1 (en) 1987-07-31 1988-07-29 An apparatus for recording and reproducing information on and from an optical disk
US07/225,892 US5010540A (en) 1987-07-31 1988-07-29 Apparatus for recording and reproducing information on and from an optical disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62193119A JP2589317B2 (en) 1987-07-31 1987-07-31 Optical disk recording and playback device

Publications (2)

Publication Number Publication Date
JPS6437764A true JPS6437764A (en) 1989-02-08
JP2589317B2 JP2589317B2 (en) 1997-03-12

Family

ID=16302575

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62193119A Expired - Fee Related JP2589317B2 (en) 1987-07-31 1987-07-31 Optical disk recording and playback device

Country Status (1)

Country Link
JP (1) JP2589317B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5191601A (en) * 1990-04-04 1993-03-02 Kabushiki Kaisha Toshiba Video phone unit
JP2007314052A (en) * 2006-05-26 2007-12-06 Nikkari Co Ltd Hybrid type rail carrier

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125275U (en) * 1982-02-19 1983-08-25 ソニー株式会社 disc playback device
JPS6355250U (en) * 1986-09-30 1988-04-13

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57154933A (en) * 1981-03-19 1982-09-24 Matsushita Electric Ind Co Ltd Control device of signal waveform

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125275U (en) * 1982-02-19 1983-08-25 ソニー株式会社 disc playback device
JPS6355250U (en) * 1986-09-30 1988-04-13

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5191601A (en) * 1990-04-04 1993-03-02 Kabushiki Kaisha Toshiba Video phone unit
JP2007314052A (en) * 2006-05-26 2007-12-06 Nikkari Co Ltd Hybrid type rail carrier

Also Published As

Publication number Publication date
JP2589317B2 (en) 1997-03-12

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees