JPS6452263A - Write correcting circuit - Google Patents

Write correcting circuit

Info

Publication number
JPS6452263A
JPS6452263A JP20951087A JP20951087A JPS6452263A JP S6452263 A JPS6452263 A JP S6452263A JP 20951087 A JP20951087 A JP 20951087A JP 20951087 A JP20951087 A JP 20951087A JP S6452263 A JPS6452263 A JP S6452263A
Authority
JP
Japan
Prior art keywords
signal
output
circuit
pulse
recording
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
JP20951087A
Other languages
Japanese (ja)
Inventor
Akira Inoue
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP20951087A priority Critical patent/JPS6452263A/en
Publication of JPS6452263A publication Critical patent/JPS6452263A/en
Pending legal-status Critical Current

Links

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To improve the recording and reproducing characteristic on the entire face of an optical disk by giving an output signal from a position sensor to a single pulse generating circuit via a D/A converter and a voltage current conversion circuit so as to generate a write correction pulse. CONSTITUTION:A head position sensor 14 detects an optical head 13 on a disk in its radial direction to output a digital signal. The output signal is converted into an analog signal by a D/A converter 15 and its output voltage is converted into a current by a voltage current conversion circuit 21 and fed to a single pulse generating circuit 16. The circuit 16 controls the pulse time width depending on the input current to give a signal to a gate circuit 18 and the signal is combined with the recording signal from an information signal source 20. Then the output pulse is given to a laser drive circuit 19 to form a laser pulse. Thus, it is possible to apply required and sufficient write correction on the entire face of the optical disk to improve the recording and reproducing characteristic.
JP20951087A 1987-08-24 1987-08-24 Write correcting circuit Pending JPS6452263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20951087A JPS6452263A (en) 1987-08-24 1987-08-24 Write correcting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20951087A JPS6452263A (en) 1987-08-24 1987-08-24 Write correcting circuit

Publications (1)

Publication Number Publication Date
JPS6452263A true JPS6452263A (en) 1989-02-28

Family

ID=16573992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20951087A Pending JPS6452263A (en) 1987-08-24 1987-08-24 Write correcting circuit

Country Status (1)

Country Link
JP (1) JPS6452263A (en)

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