Abstract: Example systems and methods of generating a television channel list involve scanning virtual channels contained in a transport stream supplied to a television and determining, for each scanned virtual channel, whether that channel contains decodable video or audio content. A ring list used for tuning channels in channel up/down tuning operations is generated which contains only those scanned channels determined to have decodable video or audio content.

Abstract: Example systems and methods of generating a television channel list involve scanning virtual channels contained in a transport stream supplied to a television and determining, for each scanned virtual channel, whether that channel contains decodable video or audio content. A ring list used for tuning channels in channel up/down tuning operations is generated which contains only those scanned channels determined to have decodable video or audio content.

Abstract: Example methods and systems of finding channels related to a currently tuned channel involve receiving an input invoking a related channel function. In response to the input, a list of related channels is generated based at least in part on a currently tuned channel and the generated list of channels is displayed on a television screen. One of the related channels on the displayed list may be tuned in response to an input selecting that channel.

Abstract: A system and method is disclosed for determining the location of a mobile appliance using the reverse pilot channel provided in CDMA 2000 communication systems to determine an attribute (e.g., time of arrival, angle of arrival, time difference of arrival, received power level) of a reverse pilot signal at one or more wireless location sensors. A network overlay of wireless location sensors monitors the reverse pilot channel for a target mobile's reverse pilot signal. The monitored signal may be compared to a reference signal to determine a correlation and thereby determine an attribute of the target mobile's reverse pilot signal. The method may be performed independently from the communication system and without requiring retrieval of information bits from the mobile appliance. The reference signal may be generated from the unique long spreading code mask of the target mobile appliance which is typically a function of the ESN of the target mobile appliance.