Maintaining constant power over a wide range of temperatures...

Telecommunications – Transmitter – Power control – power supply – or bias voltage supply

Reexamination Certificate

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Details

C455S127200, C455S522000, C455S574000, C455S343100, C375S146000

Reexamination Certificate

active

10724796

ABSTRACT:
A system and method for transmitting data communications through air using a radio. The invention allows the user to select from a number of predetermined output transmission powers. When a lower output transmission power is selected the current drain to the associated amplifier is decreased thereby conserving battery power of the radio. In addition, a detector diode circuit combined with an adjustable gain amplifier combine to provide a feedback mechanism whereby the output transmission power of the radio is held substantially constant over a broad range of temperatures.

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HFA3861B, Intersil Data Sheet, “Direct Sequence Spread Spectrum Baseband Processor”, Jan. 2000, File No. 4816.
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Harris Semiconductor, HFA3627, 2.4GHz RF to IF Converter, Mar. 1996.
HFA3860A—Schematic Diagram, Typical Transceiver Application circuit Using the HFA3860A.

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