Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
Reexamination Certificate
2008-07-22
2008-07-22
Phu, Sanh D. (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Local control of receiver operation
C455S234100, C455S250100, C455S230000, C455S132000, C375S345000
Reexamination Certificate
active
07403757
ABSTRACT:
The present invention relates to an automatic gain controller in a wireless packet communication system and an automatic gain control method thereof. The automatic gain controller includes a variable gain amplifier, a signal saturation determining unit, a power calculator, and a gain controller. The gain controller includes a first gain selector and a second gain selector. In the automatic gain control method, an establishment gain of a variable gain amplifier is reduced when the number of samples greater than a predetermined reference is greater than a predetermined number. After a received power value is measured, the establishment gain is controlled by a difference between the received power value and a reference power value.
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Choi Eun-Young
Jeon Tae-hyun
Kim Myung-Soon
Lee Sok-Kyu
Lyu Deuk-Su
Blakely & Sokoloff, Taylor & Zafman
Electronics and Telecommunications Research Institute
Phu Sanh D.
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