Isaac Abraham

US Patent:

6624659, Sep 23, 2003

Filed:

Jun 30, 2000

Appl. No.:

09/608529

Inventors:

Isaac P. Abraham - Kent WA
David R. Johnson - Olympia WA
Jed Griffin - Olympia WA
David Peart - Olympia WA

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

H03K 190175

US Classification:

326 82, 326 83, 326 30

Abstract:

In one embodiment of the invention, an update circuit having a bus driver to drive a bus dynamically receives an update compensation code. The bus driver receives data at a data clock signal. The update compensation code controls impedance matching at the bus driver according to the data. A code generator generates the update compensation code at a base clock signal. The base clock signal is synchronized with the data clock signal. The base clock signal has an update interval and a quiet interval. A distribution ring interface distributes the update compensation code to the update circuit synchronously with the base clock signal.

US Patent:

6362655, Mar 26, 2002

Filed:

Nov 15, 2000

Appl. No.:

09/714054

Inventors:

Isaac P. Abraham - Kent WA
David R. Johnson - Olympia WA

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

H03K 190175

US Classification:

326 83, 326 86, 326 30, 326 90, 327108, 327112

Abstract:

An active resistor design is adapted to implement a linearized transistor driver that includes a first FET coupled between a supply potential and an output node, with the gate of the first FET being coupled to an input node. Second and third FETs are coupled between the output node and a reference potential, with the gate of the second FET being coupled to the input node. A switching circ.