In-car telephone system, hands-free unit and portable telephone unit
First Claim
1. An in-car telephone system, having:
- a portable telephone unit conducting wireless telephone communication; and
a hands-free unit, being connected to the portable telephone unit, which outputs a receiving voice from the portable telephone unit through a speaker arranged in a car, and outputs an aural signal input from a microphone arranged in the car to the portable telephone unit as a transmitting signal, comprising;
a connection detector to detect that the portable telephone unit and the hands-free unit were communicatively connected during a handset conversation with a microphone and a speaker included in the portable telephone unit; and
a mode switching device to switch from a handset conversation condition to a hands-free conversation condition with the microphone and the speaker arranged in the hands-free unit when the connection between the portable telephone unit and the hands-free unit during a handset conversation is detected by the connection detector.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention was achieved in order to provide an in-car telephone system of great convenience when switching between a hands-free conversation and a conversation using a handset of a portable telephone (a handset conversation), which has a portable telephone conducting wireless telephone communication and a hands-free unit, being connected to the portable telephone, which outputs a receiving voice from the portable telephone through a speaker arranged in a car and outputs an aural signal input from a microphone arranged in the car to the portable telephone as a transmitting signal, comprising a connection detector to detect the communicative connection between the portable telephone and the hands-free unit during a handset conversation using a microphone and a speaker included in the portable telephone, and a mode switching device to switch from a handset conversation condition to a hands-free conversation condition using the microphone and the speaker arranged in the hands-free unit when the connection between the portable telephone and the hands-free unit during a handset conversation is detected by the connection detector.
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Citations
29 Claims
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1. An in-car telephone system, having:
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a portable telephone unit conducting wireless telephone communication; and
a hands-free unit, being connected to the portable telephone unit, which outputs a receiving voice from the portable telephone unit through a speaker arranged in a car, and outputs an aural signal input from a microphone arranged in the car to the portable telephone unit as a transmitting signal, comprising;
a connection detector to detect that the portable telephone unit and the hands-free unit were communicatively connected during a handset conversation with a microphone and a speaker included in the portable telephone unit; and
a mode switching device to switch from a handset conversation condition to a hands-free conversation condition with the microphone and the speaker arranged in the hands-free unit when the connection between the portable telephone unit and the hands-free unit during a handset conversation is detected by the connection detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A hands-free unit, which is connected to a portable telephone unit conducting wireless telephone communication, which outputs a receiving voice from the portable telephone unit through a speaker arranged in a car and outputs an aural signal input from a microphone arranged in the car to the portable telephone unit as a transmitting signal, comprising:
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a connection detector to detect the communicative connection with the portable telephone unit; and
a hands-free-unit-side mode switching device to start the hands-free conversation processing and transmit a hands-free conversation mode switching signal showing that the condition is changed to a hands-free conversation condition to the portable telephone unit, when the communicative connection with the portable telephone unit is detected by the connection detector.
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29. A portable telephone unit, which is connectable to a hands-free unit which outputs a receiving voice from a portable telephone unit conducting wireless telephone communication through a speaker arranged in a car and outputs an aural signal input from a microphone arranged in the car to the portable telephone unit as a transmitting signal, comprising:
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a switching signal receiving device to receive a hands-free conversation mode switching signal showing that the condition is changed to a hands-free conversation condition from the hands-free unit; and
a portable-telephone-side mode switching device to stop the handset conversation processing and start the hands-free conversation processing, when the switching signal receiving device receives a hands-free conversation mode switching signal.
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Specification