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:
May. 15, 2001
Filed:
Nov. 14, 1997
Alexander Romanowski, Hildesheim, DE;
Wilhelm Vogt, Lichtenau, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method and system for updating clock references in a digital data stream is proposed, wherein all clock references present in the data stream are updated by means of a single system clock. A time recovery unit compares time t,transported in the clock reference (PCR) with the time of the system clock t,and stamps the difference (t,−t,) of the two times into the clock reference. After remultiplexing, a stamping unit reads out the time difference (t,−t,) of the two times from the time stamp, subtracts it from the actual time in the system clock and stamps the value (t,+d) into the clock reference. Due to similarities in operation, the time recovery unit and stamping unit may share common circuitry.