Telecommunications – Transmitter and receiver at same station – Having particular housing or support of a transceiver
Patent
1998-09-30
2000-12-19
Hunter, Daniel S.
Telecommunications
Transmitter and receiver at same station
Having particular housing or support of a transceiver
455550, H04Q 732
Patent
active
061636827
ABSTRACT:
In a wireless telephone, when an operation such as opening or closing of a front flip cover or a key operation of communication-start or communication-end occurs, a controller obtains information for extraction or retraction of an antenna. Based on the above information, the controller controls a motor-driving by intermittently supplying a motor-driving signal by which the motor can rotate clockwise or counterclockwise during a preset time necessitated for fully extracting and retracting an antenna. While motor-driving, if a blocking force is applied to an antenna, the controller repeatedly stops supplying of the driving signals to the motor for a predetermined interval and then resumes supplying the signals. A gear unit is tightly coupled in a body with the motor, receives a rotating force from the motor shaft, and extracts and retracts an antenna. In addition, there is further provided a fixing element for fixing the motor and the gear unit to an antenna housing, which is able to absorb external impact transferred to the motor and the gear unit through an antenna and to absorb a vibration of the motor. When a front flip cover is opened or a communication-start key is pushed by a user to use the wireless telephone, the antenna is automatically extracted from the antenna housing, while when the front flip cover is closed or a communication-end key is pushed, the antenna is automatically retracted into the antenna housing.
REFERENCES:
patent: 4857813 (1989-08-01), Matsumoto et al.
patent: 4942311 (1990-07-01), Harada
patent: 4990929 (1991-02-01), Nakase et al.
patent: 5212725 (1993-05-01), Yamamoto et al.
patent: 5497506 (1996-03-01), Takeyasu
patent: 5689821 (1997-11-01), Shimazaki
Hunter Daniel S.
Samsung Electronics Co,. Ltd.
Wyche Myron K.
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