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:
Oct. 13, 1992
Filed:
Aug. 30, 1989
Tetsuo Maeda, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A video disk playback apparatus for playing back video image information recorded on a disk, such as a laser disk. The information recorded in the disk is read out as playback signals, which are separated into an analog composite video signal, digital data and digital audio data. The analog composite video signal is either directly reproduced as a moving picture, or is converted into digital composite video data and stored in a video data memory. On the other hand, the digital data is converted into digital video data having the same format as the digital composite video data and is stored in the same video data memory as the digital composite video data. The digital data being read out from the disk, such as track number and frame number, are converted into a format that can be recorded into the video data memory, and hence the video data memory for storing the digital composite video data can be shared, so that a memory circuit for the digital video data is not needed. It is also possible to cope with the case of recording a large capacity of digital data such as graphic data and still pictures onto a video disk.