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. 01, 2002
Filed:
Apr. 15, 1997
Wilhelmus H. A. Brüls, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
When a program of a certain duration is converted into compressed data (encoded), it is desirable for the total number of data to fit in an available data space, for example, when recorded on an information carrier. More particularly in variable bit rate compression such as a video signal via MPEG-2, this is hard to forecast. For this purpose, a recording device includes a compression unit whose bit rate is influenced by a system controller via a control input during the encoding process depending on the remaining part of the vacant data space on the information carrier and the remaining duration of the program. When parameters that influence the bit rate are set in the compression unit, the system controller will take the complexity of the program derived during a previously encoded part of the program into account. Furthermore, a separate encoding device receives time information and data space information. Also, the control of the bit rate of a compression unit depends on the time, data space and program complexity information.