Receiver and receiving method
First Claim
1. A receiver configured to select a channel based on a channel list comprising channels, the receiver comprising:
- a memory configured to store the channel list;
a first tuner configured to scan a partial frequency band out of a predetermined frequency band in order to receive first service information comprising information of a service corresponding to a first channel received in the scanning partial frequency band;
a channel list generator configured to generate the channel list based on the first service information and to store the channel list in the memory;
a second tuner configured to scan the entire frequency band of the predetermined frequency band in order to receive second service information comprising information of a service corresponding to a second channel received by the second tuner while scanning the predetermined frequency band simultaneously with the scanning by the first tuner; and
a channel list updating module configured to update the channel list in the memory based on the second service information after the completion of the scanning by the second tuner.
1 Assignment
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Accused Products
Abstract
A receiver selecting a channel to be received based on a channel list enumerating receivable channels includes: a memory capable of storing the channel list; a first tuner configured to perform a quick scan to scan a partial frequency band out of a predetermined frequency band to obtain first service information including information of a service corresponding to the channel received by the quick scan; a channel list generation module configured to generate the channel list based on the first service information obtained by the first tuner and store the channel list in the memory; a second tuner configured to perform, in parallel with the quick scan by the first tuner, a full scan to scan the entire predetermined frequency band to obtain second service information including information of a service corresponding to the channel received by the full scan; and a channel list updating module configured to update the channel list stored in the memory based on the second service information after the full scan by the second tuner is completed.
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Citations
6 Claims
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1. A receiver configured to select a channel based on a channel list comprising channels, the receiver comprising:
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a memory configured to store the channel list; a first tuner configured to scan a partial frequency band out of a predetermined frequency band in order to receive first service information comprising information of a service corresponding to a first channel received in the scanning partial frequency band; a channel list generator configured to generate the channel list based on the first service information and to store the channel list in the memory; a second tuner configured to scan the entire frequency band of the predetermined frequency band in order to receive second service information comprising information of a service corresponding to a second channel received by the second tuner while scanning the predetermined frequency band simultaneously with the scanning by the first tuner; and a channel list updating module configured to update the channel list in the memory based on the second service information after the completion of the scanning by the second tuner. - View Dependent Claims (2, 3, 4, 5)
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6. A receiving method in a receiver configured to select a channel based on a channel list comprising channels, the method comprising:
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scanning a partial frequency band out of a predetermined frequency band; scanning the entire frequency band of the predetermined frequency band in parallel with the scanning of the partial frequency band; receiving first service information comprising information of a service corresponding to the channel received while scanning the partial frequency band; generating the channel list based on the first service information and storing the generated channel list in the memory; receiving second service information comprising information of a service corresponding to the channel received by the second tuner while scanning the entire frequency band of the predetermined frequency band; and updating the channel list in the memory based on the second service information.
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Specification