Tunable receiver
AssigneeKoninklijke Philips Electronics N.V.
InventorJarmo Olavi Salo
Life of this patent
Estimating the term…
Abstract
A receiver (REC) is tunable (TUN) to any one of a plurality of channels (CH) by means of channel-select commands (CSC). The receiver tunes to (SRCH) a channel (CH[i]) with a signal (S) having a channel identification (CHIND) that identifies the channel (CH[i]). The receiver defines (DEF) a tuning reference (REF) on the basis of the channel identification (CHIND) and the channel-select command (CSC[j]), which is used for tuning to such a channel (CH[i]). This allows a reduction of cost, because the receiver need not rely on accuracy of tuning components in order to be certain which channel-select command has to be applied for tuning to a particular channel.
Claims11
A receiver that is tunable to a plurality of channels, wherein the receiver:
- searches a plurality of control channels for the control channel with a signal having a predetermined criterion;
- determines whether the control channel with the signal having the predetermined criterion contains selected information, and if so, deriving a channel identification from the signal;
- defines a tuning reference on the basis of the derived channel identification and a channel select value;
- and
- tunes to a desired channel based on the tuning reference.
A method of controlling a receiver that is tunable to a plurality of channels wherein the method comprises:
- searching a plurality of control channels for the control channel with a signal having a predetermined criterion;
- determining whether the control channel with the signal having the predetermined criterion contains selected information, and if so, deriving a channel identification from the signal;
- defining a tuning reference on the basis of the derived channel identification and a channel select value;
- and
- tuning to a desired channel based on the tuning reference.
A method of operating a mobile phone system comprising a plurality of channels over which signals may be transmitted, wherein the method comprises:
- searching a plurality of control channels for the control channel with a signal having a predetermined criterion;
- determining whether the control channel with the signal having the predetermined criterion contains selected information, and if so, deriving a channel identification from the signal;
- defining a tuning reference on the basis of the derived channel identification and a channel select value;
- and
- tuning to a desired channel based on the tuning reference.
Dependencies are inferred from the claim text.