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. 27, 2001
Filed:
Jun. 30, 1998
William J. O'Grady, Yonkers, NY (US);
U.S. Philips Corporation, New York, NY (US);
Abstract
A method of generating program clock reference values for a digital data stream is provided. The program clock reference value will preferably include a 33-bit base and a 9-bit extension. The method comprises the steps of receiving an input digital data stream having a pixel clock frequency, dividing the input frequency of the pixel clock and producing a counter clock that increments at a rate proportional to the pixel clock, multiplying the counter clock by a rational number to produce a number that indicates time expressed in 27 MHz periods and inputting the resulting value into a divider which divides every input by 300 to produce a quotient representing the Program Clock Reference value base and the remainder representing the Program Clock Reference value extension. A PCR generator for use in, for example, an MPEG encoder is also provided.