Patent ID: 7502368
Filing Date: 2009-03-10
Classification: H04L

Abstract:
1. A method of switching a source for an audiovisual program configured for distribution among a plurality of user terminals, comprising: receiving a first real-time digital bitstream and a second real-time digital bitstream, said source being said first real-time digital bitstream; receiving a request from a remote controller operative to switch said source of said audiovisual program; switching said source to said second real-time digital bitstream in response to said request; adjusting time stamp data in said second real-time digital bitstream to provide a continuous time base for said audiovisual program; receiving a return request from said remote controller operative to return said source to said first real-time digital bitstream; returning said source to said first real-time digital bitstream in response to said return request; and adjusting time stamp data in said first real-time digital bitstream to maintain said continuous time base for said audiovisual program.