Hands-Free Telephony and In-Vehicle Communication
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Accused Products
Abstract
The present invention relates to a signal processing system, comprising a number of microphones and loudspeakers, a hands-free set configured to receive a telephone signal from a remote party and to transmit a microphone signal supplied by at least one of the microphones to the remote party; an in-vehicle communication system configured to receive a microphone signal supplied by at least one of the microphones; receive the telephone signal; amplify the microphone signal to obtain at least one first output signal; output the at least one first output signal and/or a second output signal corresponding to the telephone signal to at least one of the loudspeakers; and wherein the signal processing systems is configured to detect speech activity in the telephone signal and to control the in-vehicle communication system to reduce amplification of the microphone signal by a damping factor, if it is detected that speech activity is present in the telephone signal.
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Citations
33 Claims
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1-19. -19. (canceled)
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20. A processing system for a combined hands-free telecommunication and in-vehicle communication system for a vehicle, the processing system configured to:
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receive, by a hands-free set, a telephone signal from a party remote from the vehicle; receive, by an in-vehicle microphone of the in-vehicle communication system, a microphone signal from an occupant of the vehicle; detect speech activity in the telephone signal; and reduce amplification of the microphone signal when speech activity is present in the telephone signal. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A method for reducing amplification of a microphone signal of an in-vehicle communication system, comprising:
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receive a telephone signal from a party remote from the vehicle; receive, by an in-vehicle microphone, a microphone signal from an occupant of the vehicle; detect speech activity in the telephone signal; and reduce amplification of the microphone signal when speech activity is present in the telephone signal. - View Dependent Claims (28, 29, 30, 31, 32)
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33. A combined hands-free telecommunication and in-vehicle communication system, comprising:
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a plurality of microphones; a plurality of speakers; and a signal processing system configured to; receive, by a hands-free set, a telephone signal from a party remote from the vehicle; receive, by an in-vehicle microphone of the in-vehicle communication system, a microphone signal from an occupant of the vehicle; detect speech activity in the telephone signal; and reduce amplification of the microphone signal when speech activity is present in the telephone signal.
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Specification