Preamplifier for receiver and method thereof

Details Preamplifier for receiver and method thereof Preamplifier for receiver and method thereof

2008-02-21

2009-08-18

Choe, Henry K (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S255000

Reexamination Certificate

active

07576609

ABSTRACT:
A preamplifier used in a receiver is provided. The preamplifier comprises an input circuit and an output circuit. The input circuit receives an input differential voltage pair, pulls it down when the common voltage of the input differential voltage pair is higher than a reference voltage. The output circuit receives the input differential voltage pair outputted from the input circuit to pull high or low an output voltage accordingly.

REFERENCES:
patent: 4616189 (1986-10-01), Pengue, Jr.
patent: 4904953 (1990-02-01), McCormack
patent: 7053712 (2006-05-01), Bonaccio et al.
patent: 7113017 (2006-09-01), Owen
patent: 7221190 (2007-05-01), Partow et al.

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