Broadcast receiver and control method thereof
First Claim
1. A broadcast receiver comprising:
- an antenna connector configured to connect to an antenna receiving a broadcast signal comprising broadcast content;
a signal processor configured to generate a reference signal having a strength corresponding to the broadcast signal input through the antenna connector, and to process the generated reference signal while processing the broadcast signal to output an image signal for displaying the broadcast content; and
a controller configured to identify whether the antenna is connected to the antenna connector based on the strength of the reference signal, and to perform subsequent operations related to whether the antenna is connected based on the identification,wherein the signal processor comprises an automatic gain controller configured to maintain a strength of the broadcast signal input through the antenna connector to be constant based on the reference signal, andwherein the strength of the reference signal is detected based on an output signal of a level detector of the automatic gain controller.
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Accused Products
Abstract
Disclosed is a broadcast receiver that includes an antenna connector configured to connect with an antenna for receiving a broadcast signal including broadcast content. The broadcast receiver also includes a signal processor configured to generate a reference signal having a strength corresponding to a signal input through the antenna connector and to process the generated reference signal to output an image signal for displaying the broadcast content, and a controller configured to determine whether the antenna is connected to the antenna connector based on an output value of the reference signal and to perform subsequent operations related to whether the antenna is connected based on the determination.
13 Citations
15 Claims
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1. A broadcast receiver comprising:
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an antenna connector configured to connect to an antenna receiving a broadcast signal comprising broadcast content; a signal processor configured to generate a reference signal having a strength corresponding to the broadcast signal input through the antenna connector, and to process the generated reference signal while processing the broadcast signal to output an image signal for displaying the broadcast content; and a controller configured to identify whether the antenna is connected to the antenna connector based on the strength of the reference signal, and to perform subsequent operations related to whether the antenna is connected based on the identification, wherein the signal processor comprises an automatic gain controller configured to maintain a strength of the broadcast signal input through the antenna connector to be constant based on the reference signal, and wherein the strength of the reference signal is detected based on an output signal of a level detector of the automatic gain controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of controlling a broadcast receiver comprising a signal processor and an antenna connector, the method comprising:
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generating, by the signal processor, a reference signal having a strength corresponding to a broadcast signal input through the antenna connector while processing the broadcast signal to output an image signal for displaying a broadcast content; identifying whether an antenna is connected to the broadcast receiver based on the strength of the reference signal; and performing subsequent operations related to whether the antenna is connected based on the identification whether the antenna is connected to the broadcast receiver, further comprising maintaining, by an automatic gain controller of the signal processor, a strength of the broadcast signal input through the antenna connector to be constant based on the reference signal, and wherein the strength of the reference signal is detected based on an output signal of a level detector of the automatic gain controller. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification