The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 1998
Filed:
Feb. 22, 1994
Takashi Oeda, Yokohama, JP;
Motoyasu Tsunoda, Yokohama, JP;
Noriyuki Karasawa, Yokohama, JP;
Yukihito Takada, Kamakura, JP;
Satoshi Kawamura, Yokohama, JP;
Yoshio Yukawa, Kanagawa-ken, JP;
Tsuneo Hirose, Odawara, JP;
Mitsuru Kubo, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Video Engineering, Incorporated, Yokohama, JP;
Abstract
A disc storage apparatus includes a disc having at least one recording surface, a head associated with the recording surface for recording data on the recording surface during a data write operation, and for reproducing data from the recording surface during a data read operation, a disc control unit for receiving data and outputting parallel data during the data write operation, and for receiving parallel data and outputting data during the data read operation, and an encoder/decoder circuit for receiving the parallel data from the disc control unit and outputting data to the head to be recorded on the recording surface during the data write operation, and for receiving from the head data reproduced from the recording surface and outputting parallel data to the disc control unit during the data read operation.