Differential circuit with offset control

Details Differential circuit with offset control Differential circuit with offset control

2007-10-09

2007-10-09

Choe, Henry (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S253000

Reexamination Certificate

active

11317225

ABSTRACT:
There are four differential pairs, where each has first and second legs. The first pair is to receive a first data signal at its first leg, and a second data signal at its second leg. The second pair is to receive a first offset signal at its first leg, and a second offset signal at its second leg. The third pair is to receive the first data signal at its first leg, and the second offset signal at its second leg. The fourth pair is to receive the first offset signal at its first leg, and the second data signal at its second leg. Other embodiments are also described and claimed.

REFERENCES:
patent: 6388519 (2002-05-01), Tachimori
patent: 6774720 (2004-08-01), Ikeda et al.
patent: 7113040 (2006-09-01), Nguyen
U.S. Appl. No. 11/091,227—filed Mar. 28, 2005, entitled “Data Receiver Including a Transconductance Amplifier”, Inventor(s), Zuoguo Wu, et al. (File No. 042390.P19460).

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