Patent · US Active

Method for reconstructing system time clock (STC) without carrying PCR

US9544638B2 · kind B2 · utility

0Cited by

13References

20Claims

0Family size

Assignee

Broadcom Corporation · US

Inventors

Jiang Fu · San Diego, US
Zhijie Yang · Beijing, CN
Brian Heng · Irvine, US
Xuemin Chen · Tangxia, CN

Key dates

Filing date	Sep 29, 2006
Grant date	Jan 10, 2017
Priority date	—
Expiry date	Oct 23, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04N21/435
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

In conventional packet communications systems, such as MPEG-2, the data stream includes a program clock reference (PCR) so that the receiver decoder can lock on to the data stream. The invention eliminates the need to send the PCR by transferring a data transport rate explicitly in the header of the data packets so that the decoder can use the transport rate as a locking reference and adjust its phase lock loop. The transport rate is carried in the adaptation field as user private data.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.