Semiconductor integrated circuit for audio system
First Claim
1. A semiconductor integrated circuit for an audio system comprising:
- a playback processing section for playing back at least an optical disk;
a frequency measurement circuit for measuring a frequency of a radio signal from a tuner;
a display control circuit for making a display device display at least the frequency of said radio signal; and
a controller for controlling at least said playback processing section, said frequency measurement circuit, and said display control circuit, according to an external signal, wherein said playback processing section, said frequency measurement circuit, said display control circuit, and said controller are formed on a single semiconductor chip.
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Accused Products
Abstract
A semiconductor integrated circuit for an audio system includes a playback processing section for playing back at least an optical disk, a frequency measurement circuit for measuring a frequency of a radio signal from a tuner, a display control circuit for making a display device display at least the frequency of the radio signal, and a controller for controlling the playback processing section, the frequency measurement circuit, and the display control circuit, according to an external signal. The playback processing section, the frequency measurement circuit, the display control circuit, and the controller are formed on a single semiconductor chip.
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Citations
11 Claims
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1. A semiconductor integrated circuit for an audio system comprising:
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a playback processing section for playing back at least an optical disk;
a frequency measurement circuit for measuring a frequency of a radio signal from a tuner;
a display control circuit for making a display device display at least the frequency of said radio signal; and
a controller for controlling at least said playback processing section, said frequency measurement circuit, and said display control circuit, according to an external signal, wherein said playback processing section, said frequency measurement circuit, said display control circuit, and said controller are formed on a single semiconductor chip. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11)
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2. A semiconductor integrated circuit for an audio system comprising:
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a playback processing section for playing back at least an optical disk;
a frequency measurement circuit for measuring a frequency of a radio signal from a tuner;
a display control circuit for making a display device display at least the frequency of said radio signal; and
a controller for controlling at least said playback processing section, said frequency measurement circuit, and said display control circuit, according to an external signal, wherein;
said playback processing section, said frequency measurement circuit, said display control circuit, and said controller are formed on a single semiconductor chip;
said semiconductor chip has a clock generator circuit for generating a first clock for making at least said playback processing section, in said semiconductor chip, operate, and a second clock for making at least either one of said frequency measurement circuit or said display control circuit operate; and
said second clock has a frequency smaller than a frequency of said first clock. - View Dependent Claims (3)
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Specification