Hands-free type automobile telephone and general-purpose telephone
First Claim
1. A hands-free type automobile telephone and a general-purpose telephone comprising:
- a handset having a transmitter at one end thereof and a receiver at the other end thereof;
a cradle-shaped coupler mounted in a vehicle for supporting said handset at opposite ends thereof through a pair of swingable support plates, said cradle-shaped coupler provided with a case and a two-way amplifier circuit having a small-sized speaker oppositely disposed from said transmitter of said handset and a microphone oppositely disposed from said receiver of said handset, said small-sized speaker being mounted on a back surface of one of said support plates so as to be swingable, said microphone being mounted on a back surface of the other of said support plates so as to be swingable, said support plates being provided with locking means for locking said handset to said cradle-shaped coupler so as to press said transmitter and said receiver of said handset against said support plates;
a separate microphone connected with said speaker of said cradle-shaped coupler through an electronic circuit; and
a separate speaker connected with said microphone of said cradle-coupler through said electronic circuit;
whereby said telephone is used through said separate speaker and said separate microphone in hands-free condition in a condition in which said handset is mounted in said cradle-shaped coupler.
1 Assignment
0 Petitions
Accused Products
Abstract
The automobile telephone is used in a hands-free condition by coupling its handset with a cradle-shaped coupler which is provided with a pair of swingable support plates for receiving a transmitter portion and a receiver portion of the handset in use to make it possible to receive the handset regardless its size and mounting angle. On a back surface of the swingable support plates are provided a speaker and a microphone which are coupled with the transmitter portion and the receiver portion of the handset respectively so as to make it possible to use the telephone in a hands-free condition through these speaker and microphone incorporated in the cradle-shaped coupler.
62 Citations
4 Claims
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1. A hands-free type automobile telephone and a general-purpose telephone comprising:
- a handset having a transmitter at one end thereof and a receiver at the other end thereof;
a cradle-shaped coupler mounted in a vehicle for supporting said handset at opposite ends thereof through a pair of swingable support plates, said cradle-shaped coupler provided with a case and a two-way amplifier circuit having a small-sized speaker oppositely disposed from said transmitter of said handset and a microphone oppositely disposed from said receiver of said handset, said small-sized speaker being mounted on a back surface of one of said support plates so as to be swingable, said microphone being mounted on a back surface of the other of said support plates so as to be swingable, said support plates being provided with locking means for locking said handset to said cradle-shaped coupler so as to press said transmitter and said receiver of said handset against said support plates;
a separate microphone connected with said speaker of said cradle-shaped coupler through an electronic circuit; and
a separate speaker connected with said microphone of said cradle-coupler through said electronic circuit;
whereby said telephone is used through said separate speaker and said separate microphone in hands-free condition in a condition in which said handset is mounted in said cradle-shaped coupler. - View Dependent Claims (2, 3, 4)
- a handset having a transmitter at one end thereof and a receiver at the other end thereof;
Specification