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. 16, 1996
Filed:
Dec. 15, 1994
Yoshiya Nonaka, Kawagoe, JP;
Yoshio Aoyagi, Kawagoe, JP;
Hiroyuki Abe, Kawagoe, JP;
Chiaki Hirano, Kawagoe, JP;
Kiyoshi Furukawa, Kawagoe, JP;
Alex Bradshaw, Kawagoe, JP;
Kazuhiro Kiyoura, Kawagoe, JP;
Seiji Kato, Kawagoe, JP;
Koichiro Haraguchi, Kawagoe, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
Method and Apparatus for playing a CD are designed to allow playback of a partially recorded disk of CD-Rs (CD-Recordable) having the DRAW (direct read after write) capability. It is determined if a target disk is a partially recorded CD-R recording medium. When a reverse command to return to a predetermined address of the recording medium to execute playback is input, the absolute time for information being reproduced is detected and it is then determined if the absolute time is within a predetermined actual pause period. When the absolute time is determined to be within the actual pause period, the reverse command is canceled. It is therefore possible to properly operate a servo system within that recording area of the recording medium where information has already been recorded, thereby allowing a return to a predetermined address associated with the reverse command. This prevents the loss of control of the servo system. When the pickup position is in a lead-in area of the partially recorded CD-R recording medium, thus ensuring the proper reading control.