Jeffrey J Gilbert

US Patent:

6530887, Mar 11, 2003

Filed:

Nov 26, 1999

Appl. No.:

09/449780

Inventors:

Jeffrey M. Gilbert - El Cerrito CA
Alice M. Chiang - Weston MA
Steven R. Broadstone - Woburn MA
Gary Madison - Lexington MA
Albert Horst - Westford MA
Liang-Min Wang - Northboro MA

Assignee:

TeraTech Corporation - Burlington MA

International Classification:

A61B 800

US Classification:

600459

Abstract:

A hand-held ultrasound probe system includes integrated electronics within an ergonomic housing. The electronics includes control circuitry, beamforming and circuitry transducer drive circuitry. The probe electronics communicates with a host computer using an industry standard high speed serial bus.

US Patent:

6671227, Dec 30, 2003

Filed:

Aug 2, 2001

Appl. No.:

09/921976

Inventors:

Jeffrey M. Gilbert - El Cerrito CA
Alice M. Chiang - Weston MA
Steven R. Broadstone - Woburn MA

Assignee:

TeraTech Corporation - Burlington MA

International Classification:

G03B 4206

US Classification:

367138

Abstract:

A multidimensional beamforming device that performs consecutive one-dimensional operations. For example, beamsteering for a two-dimensional array can be include a projection of a beam onto each of the respective axes of the array. In such a device, a first beamforming processing element is used to form multiple beams for each array output along a given row. In a preferred embodiment, sequential output vectors from the first processing element are then applied to a transposing or corner turning memory and the data are reformatted such that all elements on a given column of the array are applied to a second beam forming processing element.

US Patent:

6869401, Mar 22, 2005

Filed:

Aug 23, 2002

Appl. No.:

10/227187

Inventors:

Jeffrey M. Gilbert - El Cerrito CA, US
Alice M. Chiang - Weston MA, US
Steven R. Broadstone - Woburn MA, US
Gary Madison - Lexington MA, US
Albert Horst - Westford MA, US

Assignee:

Teratech Corporation - Burlington MA

International Classification:

A61B008/00

US Classification:

600459

Abstract:

A hand-held ultrasound system includes integrated electronics within an ergonomic housing. The electronics includes control circuitry, beamforming and circuitry transducer drive circuitry. The electronics communicate with a host computer using an industry standard high speed serial bus.

US Patent:

7129884, Oct 31, 2006

Filed:

Jul 1, 2004

Appl. No.:

10/884785

Inventors:

Ardavan Maleki Tehrani - Menlo Park CA, US
Xiaoru Zhang - Sunnyvale CA, US
Paul J. Husted - San Jose CA, US
Jeffrey M. Gilbert - Sunnyvale CA, US

Assignee:

Atheros Communications, Inc. - Santa Clara CA

International Classification:

G01S 7/40
G01S 7/285
G01S 7/35
G01S 13/00

US Classification:

342 20, 342 13, 342 52, 342 58, 342 89, 342175, 342195

Abstract:

A radar detection technique in a WLAN device can include a short pulse detection technique and a long pulse detection technique that can be performed using multiple receive chains. Short pulse detection is particularly effective when the incoming signal includes one or a limited number of main pulses and some residual pulses. In contrast, long pulse detection is particularly effective when the incoming signal is longer, thereby allowing various characteristics of the incoming signal to be accurately measured.

US Patent:

7366089, Apr 29, 2008

Filed:

Oct 8, 2003

Appl. No.:

10/682787

Inventors:

Ardavan M. Tehrani - Menlo Park CA, US
Won-Joon Choi - Sunnyvale CA, US
Jeffrey M. Gilbert - Sunnyvale CA, US
Yi Hsiu Wang - Menlo Park CA, US

Assignee:

Atheros Communications, Inc. - Santa Clara CA

International Classification:

H04L 5/04

US Classification:

370208, 370210, 375347

Abstract:

The present invention provides an apparatus and method of multiple antenna receiver combining of high data rate wideband packetized wireless communication signals, where the apparatus includes M receive antennas, receiving M high data rate wideband packetized wireless communication signals, where each of the signals includes N frequency bins. The apparatus, in an exemplary embodiment, includes (1) a joint timing recovery units that perform joint coarse signal timing estimation, joint frequency offset estimation, and joint fine timing estimation on each of the signals, (2) M Fast Fourier Transform units (FFTs) that each convert the digital data for each of the M signals into frequency domain information for each of the N received frequencies and that output Q pilots for each of the signals, where Q is a positive integer, and (3) a combiner that weights and combines the outputs of the M FFTs for each of the N received frequencies.

US Patent:

7463704, Dec 9, 2008

Filed:

Jul 1, 2004

Appl. No.:

10/884787

Inventors:

Ardavan Maleki Tehrani - Menlo Park CA, US
Xiaoru Zhang - Sunnyvale CA, US
Paul J. Husted - San Jose CA, US
Jeffrey M. Gilbert - Sunnyvale CA, US

Assignee:

Atheros Communications, Inc. - Santa Clara CA

International Classification:

H04L 27/08

US Classification:

375345, 375267, 375347, 375349, 455140, 4552342, 4552411

Abstract:

A wireless local area network (WLAN) system can have multiple antennas to improve signal detection and decoding. A WLAN receiver in such a system includes multiple amplifiers that can appropriately size an incoming signal and an automatic gain control unit to process the received incoming signals. The amplifiers of a chain of the WLAN receiver, i. e. an antenna and associated receiver components, can be adjusted with computed gains. To optimize the wireless system detection and decoding, the automatic gain control unit can advantageously compute these gains for each amplifier in the WLAN receiver.

US Patent:

7710319, May 4, 2010

Filed:

Feb 13, 2007

Appl. No.:

11/706711

Inventors:

Karim Nassiri-Toussi - Belmont CA, US
Jeffrey M. Gilbert - Palo Alto CA, US
Chuen-Shen Shung - San Jose CA, US
Dmitry M. Cherniavsky - San Jose CA, US

Assignee:

SiBeam, Inc. - Sunnyvale CA

International Classification:

H01Q 3/00
H04B 7/216
H03C 7/02

US Classification:

342377, 370335, 455101

Abstract:

A method and apparatus for adaptive beam-steering are disclosed. In one embodiment, the method comprises performing adaptive beam steering using multiple transmit and receive antennas, including iteratively performing a pair of training sequences, wherein the pair of training sequences includes estimating a transmitter antenna-array weight vector and a receiver antenna-array weight vector.

US Patent:

7881258, Feb 1, 2011

Filed:

Mar 21, 2007

Appl. No.:

11/689386

Inventors:

Jeffrey M. Gilbert - Palo Alto CA, US
Kannan Ramchandran - El Cerrito CA, US
Guocong Song - San Jose CA, US

Assignee:

Sibeam, Inc. - Sunnyvale CA

International Classification:

H04W 4/00
H04W 72/00
G06F 15/16

US Classification:

370329, 370465, 455450, 709231

Abstract:

A system is disclosed having a transmitter to wirelessly transmit multi-media data. The transmitter includes a module to packetize phase units of a multimedia frame that is to be transmitted. The system also includes a receiver to receive the multimedia frame received from the transmitter. The receiver includes a post processing module to perform error concealment on the phase units.