Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Reexamination Certificate
2010-02-16
2010-10-12
Nguyen, Long (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
C327S563000, C327S063000, C330S253000
Reexamination Certificate
active
07812645
ABSTRACT:
A signal conversion circuit2comprises a differential amplifier portion10and a source follower portion20. When differential voltage signals INp and INn are input to a first input terminal5and second input terminal6respectively, operations occurs either in a mode in which only the differential amplifier portion10operates, or a mode in which both the differential amplifier portion10and the source follower portion20operate, or a mode in which only the source follower portion20operates, according to the levels of the differential voltage signals INp and INn. The differential amplifier portion10and source follower portion20have fewer components compared with a circuit comprising two differential amplifier circuits. By this means, the circuit area can be reduced, and in addition current consumption can be reduced. Also, because the source follower portion20performs non-inverting amplification of the differential voltage signals INp and INn, high-speed operation is possible.
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Masuda Makoto
Miura Satoshi
Nguyen Long
Sughrue & Mion, PLLC
Thine Electronics Inc.
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