JPS5528516A - Optical recording device - Google Patents

Optical recording device

Info

Publication number
JPS5528516A
JPS5528516A JP10006778A JP10006778A JPS5528516A JP S5528516 A JPS5528516 A JP S5528516A JP 10006778 A JP10006778 A JP 10006778A JP 10006778 A JP10006778 A JP 10006778A JP S5528516 A JPS5528516 A JP S5528516A
Authority
JP
Japan
Prior art keywords
phase
signal
supplied
modulator
synchronous 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.)
Granted
Application number
JP10006778A
Other languages
Japanese (ja)
Other versions
JPS616451B2 (en
Inventor
Kiichi Kamiyanagi
Takeshi Maeda
Seiji Yonezawa
Yoshinori Miyamura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10006778A priority Critical patent/JPS5528516A/en
Publication of JPS5528516A publication Critical patent/JPS5528516A/en
Publication of JPS616451B2 publication Critical patent/JPS616451B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To perform recording with no occurrence of the drifted signal by giving the photoelectric conversion to the recording laser beam and then the phase matching between the wobbling and the reference synchronous signal.
CONSTITUTION: Output beam 2 of argon ion laser 1 is modulated by electro-optical (EO) modulator 3 and then deflected by ultrasonic deflector 4 to be condensed disk surface 6 via mirror 5. On the other hand, aural signal 7 is supplied driver 10 of EO modulator 3 through PCM modulator 8 and limiter 9 to perform the optical modulation. The signal given from synchronous signal generator 11 is supplied to AO polarizing driver 15 through adder 14. The beams drawn out of slitters 16 and 17 undergo the detection for the deflection phase and the synchronous signal through photoelectric conversion elements 18 and 19 to be supplied to phase comparator 24. And the wobbling phase is controlled via phase shifter 12 so that the phase may be turned to zero. As a result, the occurrence of the tracking error due to the phase delay can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP10006778A 1978-08-18 1978-08-18 Optical recording device Granted JPS5528516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10006778A JPS5528516A (en) 1978-08-18 1978-08-18 Optical recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10006778A JPS5528516A (en) 1978-08-18 1978-08-18 Optical recording device

Publications (2)

Publication Number Publication Date
JPS5528516A true JPS5528516A (en) 1980-02-29
JPS616451B2 JPS616451B2 (en) 1986-02-26

Family

ID=14264110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10006778A Granted JPS5528516A (en) 1978-08-18 1978-08-18 Optical recording device

Country Status (1)

Country Link
JP (1) JPS5528516A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5727413A (en) * 1980-07-22 1982-02-13 Matsushita Electric Ind Co Ltd Recording and reproducing method of synchronous signal
JPS61170934A (en) * 1985-01-25 1986-08-01 Hitachi Ltd Optical disk recording device
JPS6231029A (en) * 1985-07-30 1987-02-10 オプテイカル　ストレツジ　インタ−ナシヨナル−ユ−エス Record carrier for data memory
JPS6233339A (en) * 1985-07-30 1987-02-13 オプテイカル　ストレツジ　インタ−ナシヨナル−ユ−エス Record carrier for data memory
JPS6233338A (en) * 1985-07-30 1987-02-13 オプテイカル　ストレツジ　インタ−ナシヨナル−ユ−エス Record carrier for data memory

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5727413A (en) * 1980-07-22 1982-02-13 Matsushita Electric Ind Co Ltd Recording and reproducing method of synchronous signal
JPS61170934A (en) * 1985-01-25 1986-08-01 Hitachi Ltd Optical disk recording device
JPS6231029A (en) * 1985-07-30 1987-02-10 オプテイカル　ストレツジ　インタ−ナシヨナル−ユ−エス Record carrier for data memory
JPS6233339A (en) * 1985-07-30 1987-02-13 オプテイカル　ストレツジ　インタ−ナシヨナル−ユ−エス Record carrier for data memory
JPS6233338A (en) * 1985-07-30 1987-02-13 オプテイカル　ストレツジ　インタ−ナシヨナル−ユ−エス Record carrier for data memory

Also Published As

Publication number Publication date
JPS616451B2 (en) 1986-02-26

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