Telecommunications – Receiver or analog modulated signal frequency converter – Plural receivers
Reexamination Certificate
2007-11-02
2010-12-14
Trinh, Sonny (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Plural receivers
C455S138000, C455S232100
Reexamination Certificate
active
07853224
ABSTRACT:
A fast settling AGC system includes a “fast settle” comparator that facilitates fast settling of strong radio receiver output signals from a maximum to an intermediate voltage level at the start of each transmission burst, and a “normal” AGC comparator that further settles the output signal from the intermediate voltage level to a desired target output voltage level at a slower “normal” rate. The gain control signal components generated by both the “fast settle” comparator and the “normal” AGC comparator are summed and applied to the gain control terminal of a variable gain amplifier. The gain control signal component generated by the “fast settle” comparator has a higher current level than the gain control signal component generated by the “normal” comparator, but is terminated when receiver output signal drops to the intermediate voltage level.
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Bever Patrick T.
Bever Hoffman & Harms LLP
Micrel Incorporated
Trinh Sonny
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