Rambus Inc. - two more patents

United States Patent 7,065,622

Donnelly , et al. June 20, 2006

Transceiver with latency alignment circuitry

Abstract
A transceiver comprises a first interface to receive a first signal, through a first channel, from a memory device. A transmitter transmits a second signal that represents the first signal, through a second channel, to a master device. A plurality of registers stores a plurality of values provided by the master device. The plurality of values includes a first value that specifies a transmit timing adjustment to the second signal to transmit to the master device by the transmitter.

Inventors:
Donnelly; Kevin (Los Altos, CA); Johnson; Mark (Los Altos, CA); Tran; Chanh (San Jose, CA); Dillon, legal representative; Nancy D. (Washington, VA); Dillon, deceased; John B. (Palo Alto, CA)

Assignee: Rambus Inc. (Los Altos, CA)

Appl. No.: 058333

Filed: February 15, 2005

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United States Patent 7,064,602

Nguyen June 20, 2006

Dynamic gain compensation and calibration

Abstract
Described are methods and circuits that reduce or eliminate the impact of power-supply fluctuations on circuit performance. IC dies include compensation circuitry that compares local power-supply voltages to relatively stable reference voltages, such as unloaded distributed supply voltages, to sense local supply-voltage fluctuations. Based upon this comparison, the compensation circuitry adjusts circuit characteristics that might otherwise suffer performance degradation. Receivers in accordance with some embodiments automatically tailoring their gain to the output characteristics of a number of possible transmitter types with which the receivers may be expected to communicate.

Inventors: Nguyen; Huy (San Jose, CA)

Assignee: Rambus Inc. (Los Altos, CA)

Appl. No.: 840724

Filed: May 5, 2004

Hat tip to FinzToRite for the research and links.

Hat tip to Rambus Inc. engineers and the family of inventor John B. Dillon, now deceased ('622 patent above).