Electronic digital logic circuitry – Signal sensitivity or transmission integrity – Bus or line termination
Reexamination Certificate
2007-12-11
2007-12-11
Tan, Vibol (Department: 2819)
Electronic digital logic circuitry
Signal sensitivity or transmission integrity
Bus or line termination
C326S027000, C327S108000, C327S112000
Reexamination Certificate
active
11263138
ABSTRACT:
A circuit design method and transmitter that enables flexible control of amplitude, pre-emphasis, and slew rate utilizing a design of a segmented self-series terminated (SSST) transmitter having a parallel configuration of multiple, individually controllable segments of dual pull-up and pull-down transistors. Amplitude control, slew rate control and pre-emphasis control are enabled by manipulation/selection of normal or inverted inputs for the various segments. Also provided is a mechanism for providing/maintaining accurate output across a self-series terminated (SST) transmitter by regulating the supply voltage. Regulation of the supply voltage allows compatibility with conventional serial link receiver termination voltages and protects the transmitter output devices when those voltages are larger than the normal supply for the devices.
REFERENCES:
patent: 5194761 (1993-03-01), Smith
patent: 5739707 (1998-04-01), Barraclough
patent: 5986489 (1999-11-01), Raza et al.
patent: 6114885 (2000-09-01), Yang et al.
patent: 6256235 (2001-07-01), Lee
patent: 6268750 (2001-07-01), Esch, Jr.
patent: 6281715 (2001-08-01), DeClue et al.
patent: 6313682 (2001-11-01), Muller, Jr. et al.
patent: 6353346 (2002-03-01), Chan
patent: 6704818 (2004-03-01), Martin et al.
patent: 6707324 (2004-03-01), Chu
patent: 7078943 (2006-07-01), Ho et al.
patent: 2001/0000949 (2001-05-01), Rhee
patent: 2006/0126401 (2006-06-01), Ba
patent: 2006/0140309 (2006-06-01), Kuo et al.
Load Programmable Off-Chip Driver, IBM Technical Disclosure Bulletin, Jul. 1987, vol. 30 No. 2, pp. 950-951.
Clements Steven M.
Cornwell William P.
Cox Carrie E.
Cranford, Jr. Hayden C.
Rasmus Todd M.
Cockburn Josh G.
Dillon & Yudell LLP
Tan Vibol
Tran Thienvu
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