Patent ID: 8234670
Filing Date: 2012-07-31
Classification: H04N

Abstract:
1. A video system comprising: a first channel selection device arranged to receive a first plurality of channels and output a first output video corresponding to one of the first plurality of channels; a second channel selection device arranged to receive a second plurality of channels and output a second output video corresponding to one of the second plurality of channels, said second output video being different than said first output video; a display module arranged to provide simultaneously to a screen said first output video in a first part of said screen, and said second output video in a second part of said screen; a command input device configured to enable a user to select a channel to be displayed and to transmit this channel selection to a control system; said control system arranged to receive input signals from said command input device, said signals comprising channel selection information; and said control system further being arranged to control respective selections of said first and said second channel selection device, wherein upon receiving an input signal indicating a selection by the user of a second channel and thereby initiating a channel change from a first channel to a second channel, said control system will automatically cause said channel selection devices and said display module to display said first channel in said first part of said screen and said second channel in said second part of said screen, wherein said control system is arranged to define said first channel as being an original channel depending on a predetermined criterion, and wherein said control system upon receiving a second input signal (i) subsequent to receiving the first input signal and (ii) prior to the second channel (ii)(a) being defined by said control system as the original channel depending on the predetermined criterion and (ii)(b) replacing the first channel as the original channel, which second signal indicating a selection by the user of a third channel, different from the first channel, thereby initiating a channel change from said second channel to a third channel, will in response to said first channel being the original channel, automatically cause said channel selection devices and said display module to display said first channel in said first part of said screen and said third channel in said second part of said screen.