Telecommunications – Transmitter – Measuring – testing – or monitoring of transmitter
Patent
1990-03-28
1991-05-28
Eisenzopf, Reinhard J.
Telecommunications
Transmitter
Measuring, testing, or monitoring of transmitter
455117, 455128, 361384, 379437, H04B 104, H04B 1700, H05K 720
Patent
active
050201387
ABSTRACT:
A radio communication apparatus has a modulating portion for modulating a carrier with a signal to be transmitting so as to produce a transmission signal. A signal transmitting portion causes the transmissible signal to be subjected to power amplification. The transmissible signal is transmitted after having been subjected to power amplification. A cooling device is provided for cooling by force a heat source contained in the signal transmitting portion in response to a condition detector for detecting a temperature condition or an operating condition of the signal transmitting portion. An operation control unit is operative to cause the cooling device to be in operation when a particular temperature condition in which temperature of the signal transmitting portion has exceeded a predetermined value or a particular operating condition in which the signal transmitting portion has been in a predetermined state is detected by the condition dectector.
REFERENCES:
patent: 4158180 (1979-06-01), Challen
patent: 4353037 (1982-10-01), Miller
patent: 4724400 (1988-02-01), Luettgenau
patent: 4939786 (1990-07-01), McCallum et al.
Takao Nobutaka
Yasuda Hiroshi
Yokoya Satoshi
Eisenzopf Reinhard J.
Kananen Ronald P.
Pham Chi H.
Sony Corporation
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