Patent ID: 7120163
Filing Date: 2006-10-10
Classification: H04H,H04N

Abstract:
1. A multiplexing apparatus for multiplexing a first stream and a second stream for output, said multiplexing apparatus comprising: a first selecting unit having a first input operable to receive first content and a second input operable to receive second content, and being operable to select a given one of the first content and the second content as the first stream and to output another given one of the first content and the second content to a second selecting unit; said second selecting unit having a first input operable to receive the output from said first selecting unit and having a second input operable to receive the second content, and being operable to select between the output received from said first selecting unit and the second content received from said second input of said second selecting unit as the second stream; a control unit operable to control said first selecting unit to select the first content as the first stream until a first predetermined time, to select the second content as the first stream and to output the first content to said second selecting unit during an interval between the first predetermined time and a second predetermined time, and to again select the first content as the first stream after the second predetermined time; said control unit being further operable to control said second selecting unit to select the second content as the second stream until the first predetermined time, to select the first content received from said first selecting unit as the second stream during the interval between the first predetermined time and the second predetermined time, and to again select the second content as the second stream after the second predetermined time; and a multiplexing unit operable to multiplex the first stream and the second stream for delivery over a transmission channel.