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:
Aug. 20, 2002
Filed:
Dec. 03, 1999
Karl Francis Horlander, Indianapolis, IN (US);
Thomson Licensing S.A., Boulogne Cedex, FR;
Abstract
A communication data format conveys digital ancillary data in a vertical blanking interval of a video signal. The format employs a reference symbol including a plurality of digital pulses for indicating the start of the ancillary data and also includes a header byte following the reference symbol. The header byte contains an identifier identifying a destination service for a payload of the ancillary data or an address identifying a destination of the payload. The format also conveys multiple payload bytes, following the reference symbol in which individual bits have a period substantially comprising, a first integral multiple of a first clock period associated with a first data format, and a different second integral multiple of a second clock period associated with a second data format.