Patent Number: 7,134,101

Title: Active impedance compensation

Abstract: Active impedance compensation is accomplished in a bus system by means of a variable capacitor element associated with a connection circuit between system slave devices and an impedance balanced channel. The variable capacitor elements may be programmed using a control value determined by actively exercising the channel with a telemetry signal and evaluating the resulting signal reflections which are indicative of the impedance discontinuities on the channel.

Inventors: Liaw; Haw-Jyh (Fremont, CA), Perino; Donald V. (Los Altos, CA), Chau; Pak Shing (San Jose, CA), Donnelly; Kevin S. (Los Altos, CA)

Assignee: Rambus Inc.

International Classification: G06F 17/50 (20060101)

Expiration Date: 2019-11-07 0:00:00