Rick J Rutkowski

US Patent:

6988044, Jan 17, 2006

Filed:

Apr 8, 2003

Appl. No.:

10/409033

Inventors:

Pradeep Batra - Santa Clara CA, US
Rick A. Rutkowski - Sunnyvale CA, US

Assignee:

Rambus Inc. - Los Altos CA

International Classification:

G06R 19/00

US Classification:

702 64, 702 57, 702 74, 702 86, 702107, 327108, 327 68, 327 74, 324522, 324527, 337 83, 710107

Abstract:

Disclosed herein is a method and system for calibrating line drive currents in systems that generate data signals by varying line drive currents and that interpret the data signals by comparing them to one or more reference voltages. The calibration includes varying the line drive current at a transmitting component. At different line drive currents, a receiver reference voltage is varied while the transmitting component transmits data to a receiving component. At each line drive current, the system records the highest and lowest receiver reference voltages at which data errors do not occur. The system then examines the recorded high and low receiver reference voltages to determine a desirable line drive current.

US Patent:

7054771, May 30, 2006

Filed:

Feb 28, 2005

Appl. No.:

11/068260

Inventors:

Pradeep Batra - Santa Clara CA, US
Rick A. Rutkowski - Sunnyvale CA, US

Assignee:

Rambus, Inc. - Los Altos CA

International Classification:

G06F 19/00

US Classification:

702 64, 702 57, 702 82, 702107, 327108, 327 64, 327 74, 324522, 324527, 337 83, 710107, 340509, 340664

Abstract:

Disclosed herein is a method and system for calibrating line drive currents in systems that generate data signals by varying line drive currents and that interpret the data signals by comparing them to one or more reference voltages. The calibration includes varying the line drive current at a transmitting component. At different line drive currents, a receiver reference voltage is varied while the transmitting component transmits data to a receiving component. At each line drive current, the system records the highest and lowest receiver reference voltages at which data errors do not occur. The system then examines the recorded high and low receiver reference voltages to determine a desirable line drive current.

US Patent:

7164997, Jan 16, 2007

Filed:

Sep 23, 2005

Appl. No.:

11/233918

Inventors:

Pradeep Batra - Santa Clara CA, US
Rick A. Rutkowski - Sunnyvale CA, US

Assignee:

Rambus Inc. - Los Altos CA

International Classification:

G06F 19/00

US Classification:

702 64, 702 74, 702193, 327 74, 327 87, 327147, 324522, 324433, 710107, 323281

Abstract:

Disclosed herein is a method and system for calibrating line drive currents in systems that generate data signals by varying line drive currents and that interpret the data signals by comparing them to one or more reference voltages. The calibration includes varying the line drive current at a transmitting component. At different line drive currents, a receiver reference voltage is varied while the transmitting component transmits data to a receiving component. At each line drive current, the system records the highest and lowest receiver reference voltages at which data errors do not occur. The system then examines the recorded high and low receiver reference voltages to determine a desirable line drive current.

US Patent:

6546343, Apr 8, 2003

Filed:

Nov 13, 2000

Appl. No.:

09/711606

Inventors:

Pradeep Batra - Santa Clara CA
Rick A. Rutkowski - Sunnyvale CA

Assignee:

Rambus, Inc. - Los Altos CA

International Classification:

H03B 100

US Classification:

702 64, 327108, 326 62, 326 80

Abstract:

Disclosed herein is a method and system for calibrating line drive currents in systems that generate data signals by varying line drive currents and that interpret the data signals by comparing them to one or more reference voltages. The calibration includes varying the line drive current at a transmitting component. At different line drive currents, a receiver reference voltage is varied while the transmitting component transmits data to a receiving component. At each line drive current, the system records the highest and lowest receiver reference voltages at which data errors do not occur. The system then examines the recorded high and low receiver reference voltages to determine a desirable line drive current.