Television – Receiver circuitry – Television receiver adapted to receive radio broadcast or in...
Reexamination Certificate
2007-06-05
2007-06-05
Ometz, David (Department: 2622)
Television
Receiver circuitry
Television receiver adapted to receive radio broadcast or in...
C348S725000, C348S726000, C348S738000
Reexamination Certificate
active
10675941
ABSTRACT:
There is provided a combined TV and FM radio receiver for selectively receiving TV and FM radio signals via a single tuner using a digital intermediate frequency (IF) stage. The receiver includes a tuner that selects TV band or FM radio band signals and converts the selected signals into IF signals or primary sound IF signals; an IF processor that generates local oscillating signals depending on whether a current mode is a TV mode or an FM radio mode, and converts the IF signals and/or primary sound IF signals, into baseband signals and secondary sound IF signals, respectively; a video demodulator that extracts video signals; an audio demodulator that extracts TV audio signals and FM radio signals according to TV sound or FM radio mode data; and a controller that controls the tuner, and the IF processor, and applies the TV sound or FM radio mode data to the audio demodulator.
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Hwang Tae-don
Jeong Hong-seok
Desir Jean W.
Ometz David
Samsung Electronics Co,. Ltd.
Sughrue & Mion, PLLC
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