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:
Jun. 22, 2004
Filed:
Mar. 02, 2000
Hitachi, Ltd., Tokyo, JP;
Abstract
A digital video or audio signal recording/reproduction method and apparatus and an optical disk apparatus are provided, in which a program is recorded in a recording medium on a disk while at the same time reproducing the video information already recorded. When the recording and reproduction are alternated repetitively, the rotation for recording is controlled in stable fashion. To this end, the rotation of the recording medium is controlled in accordance with the recording control method during the recording, and the rotational speed at the time of switching from the recording mode to the reproduction mode is held during the reproduction period, thereby stably controlling the rotation of the medium for recording.