Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2002-05-28
2004-01-20
Tan, Vibol (Department: 2819)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S427000, C370S360000, C370S366000, C326S030000, C327S374000
Reexamination Certificate
active
06680936
ABSTRACT:
TECHNICAL FIELD
This invention relates to distributed multiplexer.
BACKGROUND
The operating frequencies of electronic circuits for optical network applications are in the tens of gigahertz (GHz) range. Typically, the maximum operating frequency for a circuit is expected to be the half of the unity current gain frequency (f
T
) of a semiconductor process used to fabricate devices. This maximum operating frequency is mainly limited by the output buffer that is loaded by the output termination.
REFERENCES:
patent: 4983865 (1991-01-01), Ho et al.
patent: 5046064 (1991-09-01), Suzuki et al.
patent: 5440550 (1995-08-01), Follett
patent: 6393019 (2002-05-01), Dobashi et al.
IBM Technical Disclosure Bulletin, A. Davidson, S.M. Faris and H.C. Jones, “Time Domain Multiplexer-Driver and Receiver for Chip to Chip Communication”, vol. 21 No. 11, Apr. 1979, pp 4705-4710.
Keil Ulrich
Souliotis George
Tsakas Vagelis
Fish & Richardson P.C.
Tan Vibol
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