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. 28, 1992
Filed:
Jul. 03, 1986
Yoshihiko Watanabe, Saitama, JP;
Tsuneyoshi Nagashita, Saitama, JP;
Susumu Niinuma, Saitama, JP;
Isamu Nomura, Saitama, JP;
Kimito Kobayashi, Saitama, JP;
Hiroyuki Abe, Saitama, JP;
Takayuki Iijima, Saitama, JP;
Kazuto Shimokawa, Saitama, JP;
Akira Haeno, Saitama, JP;
Yoshio Aoyagi, Saitama, JP;
Toshiyuki Kimura, Saitama, JP;
Akio Namiki, Saitama, JP;
Isao Matsumoto, Saitama, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
A method of operating a disk player that reproduces information recorded on a disk. Programs on the disk are addressed from a directory in a memory and the programs are sequentially accessed according to the order in the directory. The directory can be filled by inserting random numbers or by scanning through the programs or over the tracks. A table of contents at the beginning of the disk is read if possible. The tracks can be scanned and only tracks having new programs are reproduced. Also a playback position servo operates with a dead-zone in the drive voltage.