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:
Feb. 12, 1991
Filed:
Dec. 20, 1988
Walter R Klappert, Topanga, CA (US);
WNM Ventures, Inc., Burbank, CA (US);
Abstract
An apparatus and method for encoding graphical data on an audio compact disc or laser vision disc without affecting the digitized sound stored in the main audio channel by utilizing what is known as the subcode channel of the compact or laser disc. The subcode channel is reserved for information other than digitized compact or laser disc audio data. Multiple active areas are created on each screen or picture displayed, with each active are being synchronized with the information in the main channel by creating multiple bands in the subcode channel which can be simultaneously displayed and loading graphics and/or lyrics data which is to be displayed in the various bands.