Benjamin D Fisher

US Patent:

6370207, Apr 9, 2002

Filed:

Dec 27, 1999

Appl. No.:

09/472638

Inventors:

Lawrence Weill - Seal Beach CA
Benjamin Fisher - Anaheim Hills CA

Assignee:

Comm Sciences Corporation - Orange CA

International Classification:

H03D 100

US Classification:

375341, 375343, 342386

Abstract:

A method for mitigating multipath effects in radio systems which is based on searching for and finding a maximum likelihood estimate of range for a received signal is provided. In determining the maximum likelihood estimate, the correlation process uses a high resolution step method in processing the received signal sample values to develop an estimation statistic. The estimation statistic using the correlations of the received signal is based on a new derived representative set of coefficients formed from a nonlinear combination of parameters of the received signal transformed into a linearly solvable invertible parameter set allowing solution of the maximization process of the estimation statistic over a reduced dimension search space. Additionally there is a method of constraining the relative amplitude of received secondary signals to obtain a refinement of the optimal solution of range. The method includes a process to reduce the magnitude of the processing required by the receiver by reducing the size of the overall sample of the signal that must be managed by the receiver.

US Patent:

7403559, Jul 22, 2008

Filed:

Jan 3, 2003

Appl. No.:

10/336103

Inventors:

Benjamin Fisher - Orange CA, US
Lawrence Weill - Seal Beach CA, US

International Classification:

H04B 1/00

US Classification:

375159

Abstract:

A method of forming a cross-correlation function.

US Patent:

7486745, Feb 3, 2009

Filed:

Jun 20, 2005

Appl. No.:

11/158137

Inventors:

Benjamin Fisher - Orange CA, US
Lawrence Weill - Seal Beach CA, US

International Classification:

H03K 9/00

US Classification:

375316, 375150, 375326, 375341, 375137, 375134

Abstract:

A process is disclosed for discriminating between received ranging signals, such as GPS, GNSS, and radar signals, which arrive via a single path and those which arrive via multiple paths. The number of paths is also estimated. This is accomplished by comparing the residual for an iorder ML estimator of signal time of arrival, where order refers to the number of signal paths for which the estimator is optimal, to a discriminant determined either analytically or empirically and deciding that i distinct signal path components are present in the observation of the signal if for all korder estimators where k

US Patent:

20110319378, Dec 29, 2011

Filed:

Jun 3, 2011

Appl. No.:

13/153345

Inventors:

Michael David BARTBERGER - Sherman Oaks CA, US
Ana GONZALEZ BUENROSTRO - San Mateo CA, US
Hilary Plake BECK - San Carlos CA, US
Xiaoqi CHEN - Palo Alto CA, US
Richard Victor CONNORS - Pacifica CA, US
Jeffrey DEIGNAN - San Francisco CA, US
Jason DUQUETTE - Millbrae CA, US
John EKSTEROWICZ - San Francisco CA, US
Benjamin FISHER - San Mateo CA, US
Brian Matthew FOX - Brisbane CA, US
Jiasheng FU - Foster City CA, US
Zice FU - Foster City CA, US
Felix GONZALEZ LOPEZ DE TURISO - San Mateo CA, US
Michael GRIBBLE, JR. - San Francisco CA, US
Darin James GUSTIN - Half Moon Bay CA, US
Julie Anne HEATH - Orinda CA, US
Xin HUANG - Wellesley MA, US
Xianyun JIAO - Belmont WA, US
Michael G. JOHNSON - San Francisco CA, US
Frank KAYSER - San Francisco CA, US
David John KOPECKY - San Francisco CA, US
Sujen LAI - Burlingame CA, US
Yihong LI - Millbrae CA, US
Zhihong LI - Millbrae CA, US
Jiwen LIU - Foster City CA, US
Jonathan Dante LOW - Tarzana CA, US
Brian Stuart LUCAS - San Francisco CA, US
Zhihua MA - Foster City CA, US
Lawrence McGEE - Pacifica CA, US
Joel McINTOSH - Pacifica CA, US
Dustin McMINN - Pacifica CA, US
Julio Cesar MEDINA - San Carlos CA, US
Jeffrey Thomas MIHALIC - San Francisco CA, US
Steven Howard Olson - Foster City CA, US
Yosup REW - Foster City CA, US
Philip Marley ROVETO - San Francisco CA, US
Daqing SUN - Foster City CA, US
Xiaodong WANG - Millbrae CA, US
Yingcai WANG - Millbrae CA, US
Xuelei YAN - Foster City CA, US
Ming YU - Foster City CA, US
Jiang ZHU - Palo Alto CA, US

Assignee:

AMGEN INC. - Thousand Oaks CA

International Classification:

A61K 31/451
C07D 413/06
A61K 31/5377
C07D 401/06
A61K 31/454
C07D 417/06
A61K 31/541
A61K 31/4545
C07D 413/12
C07D 471/10
A61K 31/438
C07D 409/04
A61K 31/4535
A61K 31/496
C07D 279/02
C07D 498/08
A61K 31/5386
A61K 31/549
C07D 498/16
A61K 31/437
A61P 35/00
C07D 211/40

US Classification:

5142102, 546221, 514327, 544130, 5142355, 546208, 514326, 544 582, 5142278, 546209, 546194, 514318, 546216, 5142372, 546 17, 514278, 546213, 544360, 51425312, 544 3, 5142222, 544105, 5142305, 544 11, 5142228, 546 90, 514291

Abstract:

The present invention provides MDM2 inhibitor compounds of Formula I,

US Patent:

60318813, Feb 29, 2000

Filed:

Sep 19, 1997

Appl. No.:

8/934493

Inventors:

Lawrence Weill - Seal Beach CA
Benjamin Fisher - Anaheim CA

International Classification:

H03D 100

US Classification:

375341

Abstract:

This invention involves a method for mitigating multipath effects in radio ranging systems which is based on searching for and finding a maximum likelihood estimate of range for a received signal in a signal ranging system. In determining the maximum likelihood estimate, the correlation process uses a high resolution step method in processing the received signal sample values to develop an estimation statistic. The estimation statistic using the correlations of the received signal is based on a new derived representative set of coefficients formed from a nonlinear combination of parameters of the received signal transformed into an invertible linear combination which allows solution of the maximization process of the estimation statistic. Additionally there is a method of constraining the relative amplitude of received secondary signals to obtain a refinement of the optimal solution of range. Also the method includes a process to reduce the magnitude of the processing required by the receiver by reducing the size of the overall sample of the signal that must be managed by the receiver.