Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
1999-07-20
2002-11-19
Maung, Nay (Department: 2681)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S557000, C455S344000, C381S311000
Reexamination Certificate
active
06484040
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a mobile telephone capable of remitting picking up of an earphone in use but combining with car hi-fi speakers. And relates especially to a mobile telephone which can transmit the received and emitting signals to a car hi-fi set in a wireless mode, the sound of the user can be broadcast via the car hi-fi speakers.
2. Description of the Prior Art
Users of mobile telephones in the present days know how to use them without picking up earphones to ensure safety of car driving. A conventional car mobile telephone remitting picking up of an earphone in use shall have the mobile telephone mounted on a clamping seat in order that the sound signal from the other side of the phone call can be broadcast out of a speaker through a connecting signal line. Such a single speaker transmits sound with inferior quality. The sound is unclear and makes a user dislike.
Thereafter, some mobile telephones in the markets each provides a circuit between a mobile telephone and a car hi-fi set and is capable of remitting picking up of an earphone when in use. By providing of the circuit in remitting picking up of an earphone, sound output of the speakers can be controlled to emit the sound of the car hi-fi set or the sound of the other side of the mobile phone call. This is ideal at the first sight; however, it has a serious defect and inconvenience, i.e., a user must connect his mobile telephone with a connecting signal line once he gets in this car, otherwise, the function of remitting picking up of an earphone will not work. While in this quick pace of the industrial and commercial society, people tend to not accept such a bothersome connecting operation, especially those frequently get in and get out of their cars do.
In view of the above defects, the present invention is provided after study, developing and improvement, it is more advanced, convenient and faster for operation, for the goal of rendering the function of remitting picking up of an earphone more ideal and perfect.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a mobile telephone capable of remitting picking up of an earphone in use but combining with car hi-fi speakers. The mobile telephone can transmit its received and emitting signals to a car hi-fi set via an infrared or radio transmitting device, so that the car speakers can broadcast the sound of the other side of the mobile phone call in remitting picking up of the earphone in use. And especially, a user needs not to connect his mobile telephone with the car hi-fi set once he gets in this car.
The present invention will be apparent after reading the detailed description of the preferred embodiment thereof in reference to the accompanying drawings.
REFERENCES:
patent: 5379338 (1995-01-01), Umemoto et al.
patent: 6052603 (2000-04-01), Kinzalow
patent: 6112103 (2000-08-01), Puthuff
patent: 6173195 (2001-01-01), Chen
patent: 6272359 (2001-08-01), Kivela
patent: 6397086 (2002-05-01), Chen
patent: 10-276261 (1998-10-01), None
patent: 10-336311 (1998-12-01), None
Gelin Jean A
Maung Nay
Pro-Techtor Inter-national Services
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