Patent ID: 7756497
Filing Date: 2010-07-13
Classification: H04B

Abstract:
1. A method for switching between a plurality of subchannels contained in an electrical signal comprising the steps of: tuning to the electrical signal and having a currently selected subchannel chosen from the plurality of subchannels contained in the electrical signal; determining a circular queue ordering of the plurality of subchannels contained in the electrical signal; determining a location of the currently selected subchannel within the circular queue ordering; receiving a selection command; retrieving an associated electrical signal identifier and an associated subchannel identifier indicated by the selection command; comparing the selection command to a previous selection command; selecting a different subchannel from a next location following the location of the currently selected subprogram within the circular queue ordering only if the selection command is the same as the previous selection command; tuning to a new electrical signal indicated by the associated electrical signal identifier and selecting the different subchannel indicted by the associated subchannel identifier only if the selection command is different from the previous selection command; and changing from the currently selected subchannel to the different subchannel in response to the selection command.