Roger R Rees

US Patent:

63268302, Dec 4, 2001

Filed:

Dec 29, 2000

Appl. No.:

9/750145

Inventors:

Gary Brady - Aloha OR
Roger R Rees - Beaverton OR
Jerry Moberly - Hillsboro OR
Pete Nevard - Hillsboro OR
Christopher P. Swider - Evanston IL

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

H03K 300

US Classification:

327293

Abstract:

An automatic clock calibration circuit includes a source of clock signals and an equal number of corresponding clock reference signals. Corresponding delay elements are connected between the source and the load driven by each of the clock signals. A phase frequency detector detects the phase differences between each clock signal, at the point at which it is applied to its load, and its corresponding clock reference signal. A microcontroller adjusts the delay of the delay elements according to the detected phase differences.

US Patent:

62495569, Jun 19, 2001

Filed:

May 27, 1998

Appl. No.:

9/085394

Inventors:

Roger R. Rees - Beaverton OR
Harry L. Hampton - Aloha OR

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

H04L 700

US Classification:

375354

Abstract:

The present invention discloses a method and apparatus for thresholding an input signal synchronous with a clock signal at a receiver. The input signal is compared with a threshold voltage to produce a difference signal. The difference signal is synchronized with the input signal to generate a feedback signal. The threshold voltage is adjusted based on the feedback signal.