Apparatus for recording and reproducing information on and from

Details Apparatus for recording and reproducing information on and from Apparatus for recording and reproducing information on and from

1990-04-12

1994-01-11

Young, W. R.

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

369 4426, 369 50, 369 58, 3692753, G11B 700

Patent

active

052788148

ABSTRACT:
An apparatus for recording and reproducing information on and from an optical disk is disclosed in which at least one optical beam and a reference clock signal are used. The optical disk comprises recording tracks which are divided into a plurality of blocks and concentrically arranged along the radial direction. The apparatus comprises: a block judging unit for judging one of the blocks that the one block is currently impinged by the optical beam; a clock signal generator for generating a plurality of clock signals which are different in frequency from each other; and a clock signal selecting unit for selecting one of the clock signals as the reference clock signal, on the basis of the judgement of the block judging unit.

REFERENCES:
patent: 4566091 (1986-01-01), Gerard et al.
patent: 4710909 (1987-12-01), Tsuyashi et al.
patent: 4791622 (1988-12-01), Clay et al.
patent: 4873679 (1989-10-01), Murai et al.
patent: 4896311 (1990-01-01), Ishihara
patent: 4908810 (1990-03-01), Oie
patent: 4933922 (1990-06-01), Yokogawa
patent: 4967403 (1990-10-01), Ogawa et al.
patent: 4977550 (1990-12-01), Furuya et al.
patent: 4991033 (1991-02-01), Takeshita
patent: 5012460 (1991-04-01), Popovich et al.
patent: 5038339 (1991-08-01), Pasman et al.
patent: 5063546 (1991-11-01), Ito et al.
patent: 5073880 (1991-12-01), Maeda et al.
English abstract of Publication No. 60-177404 - laid open Sep. 11 1985.

Affiliated with

Also associated with

Rating

Apparatus for recording and reproducing information on and from does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for recording and reproducing information on and from , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for recording and reproducing information on and from will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1636073