Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Reexamination Certificate
2005-07-26
2005-07-26
Cunningham, Terry D. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
C327S077000, C327S530000
Reexamination Certificate
active
06922086
ABSTRACT:
A method and apparatus for generating a reference voltage potential, also known as an input switching reference, using differential clock signals or other differential signals that ideally have a 180 degree phase shift is provided. The differential signals are generated by a transmitting circuit. The reference voltage potential is dependent on the differential signals. The voltage potentials of the differential signals are averaged and low-pass filtered. Comparators in a receiving circuit compare an input signal's voltage potential to the reference voltage potential to determine if the transmitted input signal is a binary one or binary zero.
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European Search Report dated Apr. 16, 2004 (3 pgs). 23223/007EPI.
Cunningham Terry D.
Osha & Liang LLP
Sun Microsystems Inc.
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