Andrew B Ho

US Patent:

7030657, Apr 18, 2006

Filed:

May 21, 2004

Appl. No.:

10/851505

Inventors:

Vladimir M. Stojanovic - Stanford CA, US
Andrew Ho - Palo Alto CA, US
Anthony Bessios - Fremont CA, US
Fred F. Chen - San Francisco CA, US
Elad Alon - Saratoga CA, US
Mark A. Horowitz - Menlo Park CA, US

Assignee:

Rambus Inc. - Los Altos CA

International Classification:

H03K 19/0175

US Classification:

326 87, 326 83

Abstract:

A signaling system having an equalizing transmitter and equalizing receiver. The equalizing transmitter transmits a signal to a receive circuit. A first sampling circuit within the equalizing receiver samples the signal to determine whether the signal exceeds a first threshold, and a second sampling circuit within the equalizing receiver samples the signal to determine whether the signal exceeds a second threshold. A drive strength of the equalizing transmitter and a drive strength of an equalizing signal driver within the equalizer are adjusted based, at least in part, on whether the first signal exceeds the first and second thresholds.

US Patent:

7122328, Oct 17, 2006

Filed:

Jan 5, 2001

Appl. No.:

10/169596

Inventors:

David Mark Kingsley - Stanford CA, US
Michelle Deanetta Johnson - Tubingen, DE
Andrew Manlap Ho - Lexington MA, US

Assignee:

The Board of Trustees of the Leland Stanford Junior University - Palo Alto CA

International Classification:

G01N 33/84
G01N 33/53
A61K 38/16

US Classification:

435 721, 435 792, 530350, 530352

Abstract:

The present invention features a novel human protein (ANK), nucleotide sequences encoding human ANK, and assays for ANK activity, including assays to identify therapeutics and diagnostic assays, e. g. , for susceptibility to diseases such as arthritis. In related aspects the invention features expression vectors and host cells comprising polynucleotides that encode a human ANK. The present invention also relates to antibodies that bind specifically to a human ANK, and methods for producing human ANK polypeptides.

US Patent:

7126510, Oct 24, 2006

Filed:

Dec 17, 2004

Appl. No.:

11/015971

Inventors:

Elad Alon - Saratoga CA, US
Bruno W. Garlepp - San Jose CA, US
Vladimir Stojanovic - Stanford CA, US
Andrew Ho - Palo Alto CA, US
Fred F. Chen - San Francisco CA, US

Assignee:

Rambus Inc. - Los Altos CA

International Classification:

H03M 1/10

US Classification:

341120, 341118, 341152, 341155

Abstract:

An integrated circuit device includes one or more calibration paths including one or more devices. A signal generator is coupled to at least one calibration path and configured to provide the calibration path with a calibration signal having known characteristics. A controller is coupled to the signal generator and the calibration path and configured to adjust the signal generator and at least one parameter associated with at least one device in the calibration path.

US Patent:

7176721, Feb 13, 2007

Filed:

Dec 24, 2004

Appl. No.:

11/022291

Inventors:

Andrew Ho - Palo Alto CA, US
Vladimir M. Stojanovic - Lexington MA, US

Assignee:

Rambus Inc. - Los Altos CA

International Classification:

H03K 17/16

US Classification:

326 82, 326 26, 375316

Abstract:

In a data-precessing receiver, a sampling circuit generates a plurality of samples of an incoming signal and stores the plurality of samples one after another in a first storage buffer. A first subset of the plurality of samples are transferred from the first storage buffer to a decoder circuit in response to each assertion of a first control signal, and a second subset of the plurality of samples are transferred from the first storage buffer to a tap weight update circuit in response to each assertion of a second control signal, the second strobe signal being asserted asynchronously with respect to the first control signal. The tap weight update circuit generates a plurality of updated tap weights based, at least in part, on the second subset of the plurality of samples.

US Patent:

7199615, Apr 3, 2007

Filed:

Mar 21, 2006

Appl. No.:

11/386984

Inventors:

Vladimir M. Stojanovic - Stanford CA, US
Andrew Ho - Palo Alto CA, US
Anthony Bessios - Fremont CA, US
Fred F. Chen - San Francisco CA, US
Elad Alon - Saratoga CA, US
Mark A. Horowitz - Menlo Park CA, US

Assignee:

Rambus Inc. - Los Altos CA

International Classification:

H03K 19/0175

US Classification:

326 82, 326 26

Abstract:

A signaling system having an equalizing transmitter and equalizing receiver. The equalizing transmitter transmits a signal to a receive circuit. A first sampling circuit within the equalizing receiver samples the signal to determine whether the signal exceeds a first threshold, and a second sampling circuit within the equalizing receiver samples the signal to determine whether the signal exceeds a second threshold. A drive strength of the equalizing transmitter and a drive strength of an equalizing signal driver within the equalizer are adjusted based, at least in part, on whether the first signal exceeds the first and second thresholds.

US Patent:

7233164, Jun 19, 2007

Filed:

Jun 23, 2004

Appl. No.:

10/875086

Inventors:

Vladimir M. Stojanovic - Stanford CA, US
Andrew Ho - Palo Alto CA, US
Fred F. Chen - San Francisco CA, US
Bruno W. Garlepp - San Jose CA, US

Assignee:

Rambus Inc. - Los Altos CA

International Classification:

H03K 17/16

US Classification:

326 22, 326 82

Abstract:

A receive circuit having a sampling circuit and a threshold generating circuit. The sampling circuit generates a first sample value having either a first state or a second state according whether an incoming signal exceeds a first threshold level, the first threshold level corresponding to a first threshold value. The threshold generating circuit combines a first control value and a second control value to generate the first threshold value and provides the first threshold value to the sampling circuit.

US Patent:

7292637, Nov 6, 2007

Filed:

Dec 17, 2003

Appl. No.:

10/739823

Inventors:

Andrew Ho - Palo Alto CA, US
Vladimir Stojanovic - Stanford CA, US
Fred F. Chen - San Francisco CA, US
Elad Alon - Saratoga CA, US
Mark A. Horowitz - Menlo Park CA, US

Assignee:

Rambus Inc. - Los Altos CA

International Classification:

H04B 3/00
H04B 1/10
H04B 1/18
H03D 1/04

US Classification:

375257, 375346, 455283, 455280

Abstract:

Described are communication systems that convey differential and common-mode signals over the same differential channel. Noise-tolerant communication schemes use low-amplitude common-mode signals that are easily rejected by differential receivers, thus allowing for very high differential data rates. Some embodiments employ the common-mode signals to transmit backchannel signals for adjusting the characteristics of the differential transmitter. Backchannel control signals are effectively conveyed even if the forward channel transmitter is so maladjusted that the received differential data is unrecognizable. Systems in accordance with the above-described embodiments obtain these advantages without additional pins or communications channels, and are compatible with both AC-coupled and DC-coupled communications channels. Data coding schemes and corresponding data recovery circuits eliminate the need for complex, high-speed CDR circuits.

US Patent:

7408699, Aug 5, 2008

Filed:

Sep 26, 2006

Appl. No.:

11/528714

Inventors:

Xiaojia Wang - Fremont CA, US
David Morris - San Jose CA, US
Fei Wang - Fremont CA, US
Andrew Ho - Atherton CA, US

Assignee:

Sipix Imaging, Inc. - Freemont CA

International Classification:

G02B 26/00
G09G 3/34
G06F 3/041

US Classification:

359296, 345107, 345173

Abstract:

The present invention relates to electrophoretic displays and methods of addressing such displays. The displays and methods are especially suitable for large size electronic boards or signs.