SEMICONDUCTOR INTEGRATED CIRCUIT OF CAR NAVIGATION SYSTEM AND MULTIMEDIA PROCESSING METHOD APPLIED TO CAR NAVIGATION SYSTEM INTEGRATED WITH FM/AM BROADCAST RECEIVING FUNCTION
First Claim
1. A semiconductor integrated circuit (IC), comprising:
- an analog audio input circuit, comprising;
a radio frequency (RF) module, at least comprising a frequency modulation/amplitude modulation (FM/AM) broadcast receiving function, arranged to provide a first analog audio input signal; and
at least one analog audio input module, arranged to provide at least one second analog audio input signal;
a selecting unit, coupled to the RF module and the at least one analog audio input module, arranged to output a target analog audio input signal according to the first analog audio input signal and the at least one second analog audio input signal; and
an audio processing circuit, coupled to the selecting unit, arranged to perform an audio signal process upon the target analog audio input signal to generate an audio output signal.
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Accused Products
Abstract
A semiconductor IC includes an analog audio input circuit, a selecting unit, and an audio processing circuit, which maybe a car navigation chip. The analog audio input circuit includes an RF module and at least one analog audio input module, respectively for providing a first analog audio input signal and at least one second analog audio input signal. The RF module includes an FM/AM broadcast receiving function. The selecting unit is coupled to the RF module and analog audio input module, and outputs a target analog audio input signal according to the first and second analog audio input signals. The audio processing circuit is coupled to the selecting unit, and performs an audio signal process upon the target analog audio signal to generate an audio output signal.
7 Citations
13 Claims
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1. A semiconductor integrated circuit (IC), comprising:
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an analog audio input circuit, comprising; a radio frequency (RF) module, at least comprising a frequency modulation/amplitude modulation (FM/AM) broadcast receiving function, arranged to provide a first analog audio input signal; and at least one analog audio input module, arranged to provide at least one second analog audio input signal; a selecting unit, coupled to the RF module and the at least one analog audio input module, arranged to output a target analog audio input signal according to the first analog audio input signal and the at least one second analog audio input signal; and an audio processing circuit, coupled to the selecting unit, arranged to perform an audio signal process upon the target analog audio input signal to generate an audio output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A multimedia processing method applied to a car navigation system, comprising:
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disposing an analog audio input circuit, a selecting unit, and an audio processing circuit in a semiconductor integrated circuit (IC), wherein the analog audio input circuit comprises an RF module and at least one analog audio input module, and the RF module at least comprises a frequency modulation/amplitude modulation (FM/AM) broadcast receiving function; using the RF module to provide a first analog audio input signal, and using the at least one analog audio input module to provide at least one second analog audio input signal; outputting a target analog audio input signal according to the first analog audio input signal and the at least one second analog audio input signal via the selecting unit; performing an audio signal process upon the target analog audio input signal to generate an audio output signal via the audio processing circuit. - View Dependent Claims (11, 12, 13)
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Specification