David C Holmes

US Patent:

6459883, Oct 1, 2002

Filed:

Jul 31, 2001

Appl. No.:

09/920094

Inventors:

Ravi Subramanian - Mountain View CA
Keith Rieken - Cupertino CA
Uma Jha - Placentia CA
David M. Holmes - Cupertino CA
Joel D. Medlock - Los Gatos CA
Murali Krishnan - San Jose CA

Assignee:

Morphics Technology, Inc. - Campbell CA

International Classification:

H04B 1700

US Classification:

455 671, 455 676, 375142, 375144

Abstract:

A rake receiver in accordance with an exemplary embodiment of this invention is configurable by an external agent (e. g. , microcontroller, DSP, or state machine) to suit the particular requirements of different spread spectrum systems. In an exemplary embodiment, the receiver includes multiple fingers. Each finger includes a plurality of generic despreaders/descramblers, a plurality of generic dechannelizers coupled to the despreaders/descramblers, and at least one timing estimation controller coupled to the despreaders/descramblers. The finger also includes at least one phase estimation controller, at least one frequency estimation controller, and at least one energy estimation controller all coupled to the generic dechannelizers.

US Patent:

6751475, Jun 15, 2004

Filed:

Oct 19, 2000

Appl. No.:

09/691798

Inventors:

David William Holmes - Redmond WA
Hitesh Shah - Seattle WA

Assignee:

ATT Wireless Services, Inc. - Redmond WA

International Classification:

H04M 1100

US Classification:

455557, 455406, 4555691, 4554141

Abstract:

Methods and systems monitor a period of time associated with using a wireless device when the wireless device is integrated with a vehicle. The methods and systems can include a wireless network that communicates with the wireless device. The methods and systems can further include a computer server communicating with the wireless network that monitors a period of time associated with the wireless device while the wireless device is integrated with the vehicle. Revenue associated with the time period may be used to determine a revenue split between a wireless service provider and at least one other party.

US Patent:

7039915, May 2, 2006

Filed:

Dec 30, 2003

Appl. No.:

10/750532

Inventors:

Chakki Kavoori - San Jose CA, US
Keith Reiken - Saratoga CA, US
David M. Holmes - Cupertino CA, US

Assignee:

Infineon Technologies AG - Munich

International Classification:

G06F 9/46
G06F 12/00

US Classification:

718104, 707204

Abstract:

An architecture and method for dynamic resource allocation and scheduling in a communication device is disclosed herein. The method of controlling hardware resources in a communication device having a processor, a computer readable memory, and at least one hardware resource coupled to each other includes several steps. The first step locates a memory address in the computer readable memory that is associated with a first hardware resource. In the next step, control information associated with the first memory address is transmitted to the first hardware resource for it to be operated. In the last step, a pointer associated with the first address that locates a subsequent address for a subsequent hardware resource, is read.

US Patent:

7065128, Jun 20, 2006

Filed:

Jul 31, 2001

Appl. No.:

09/920095

Inventors:

Joel D. Medlock - Los Gatos CA, US
Keith Rieken - Cupertino CA, US
David M. Holmes - Cupertino CA, US

Assignee:

Infineon Technologies AG - Munich

International Classification:

H04B 1/69

US Classification:

375147

Abstract:

An apparatus for reducing storage requirements and for allowing reuse of multiple rake fingers in a spread spectrum system includes a decimation circuit having an associated decimation factor, a memory coupled to the decimation circuit, and an interpolation circuit having an interpolation factor coupled to the memory. The decimation circuit decimates the sampling rate of received data to produce a decimated rate. The received data is stored in the memory at the decimated rate. The decimated rate is later increased by the interpolation circuit by the interpolation factor when the stored data is retrieved from the memory. The memory is a circular buffer or a single port RAM that is accessible by multiple rake fingers substantially simultaneously via selector circuits.

US Patent:

D530789, Oct 24, 2006

Filed:

May 2, 2005

Appl. No.:

29/229000

Inventors:

David G. Holmes - Santa Cruz CA, US

International Classification:

2301

US Classification:

D23249

US Patent:

7171221, Jan 30, 2007

Filed:

Dec 20, 1999

Appl. No.:

09/467712

Inventors:

Umesh J. Amin - Redmond WA, US
Glenn Blumstein - Mercer Island WA, US
David William Holmes - Redmond WA, US
Hitesh Shah - Seattle WA, US
Ketan Kamdar - Redmond WA, US

Assignee:

Cingular Wirelesss II, LLC - Atlanta GA

International Classification:

H04B 1/40

US Classification:

455462, 455417, 455428, 455445, 4554141

Abstract:

A system and method of automatically transferring a call between telephones based on the distance between the two telephones is provided. First the proximity of a first telephone to a second telephone is determined. If the proximity is within a predetermined limit or threshold, calls directed to the first telephone are transferred to the second telephone. Security of the transfer may be ensured to prevent fraudulent use of the subscription of either telephone. Procedures are provided which permit any the above-mentioned steps to be performed either at the level of the individual telephones involved in the transfer, or by an element of the network, such as an MSC or HLR.

US Patent:

7230978, Jun 12, 2007

Filed:

Dec 28, 2001

Appl. No.:

10/040727

Inventors:

Stefan Johannes Bitterlich - Aachen, DE
David Morris Holmes - Cupertino CA, US

Assignee:

Infineon Technologies AG - Munich

International Classification:

H04B 1/38
H04L 5/16

US Classification:

375219, 375220, 375222

Abstract:

A reconfigurable channel CODEC (encoder and decoder) processor for a wireless communication system is disclosed. A high degree of user programmability and reconfigurability is provided by the channel CODEC processor. In particular, the reconfigurable channel CODEC processor includes processor cores and algorithm-specific kernels that contain logic circuits tailored for carrying out predetermined but user-configurable decoding and encoding algorithms. The interconnects between the processor cores and the algorithm-specific kernels are also user-configurable. Thus, the same hardware can be reconfigured for many different wireless communication standards.

US Patent:

7233810, Jun 19, 2007

Filed:

Aug 3, 2001

Appl. No.:

09/922484

Inventors:

Joel D. Medlock - Los Gatos CA, US
Uma Jha - Placentia CA, US
David M. Holmes - Cupertino CA, US
Andrea Y. J. Chen - Campbell CA, US
Madasamy Kartheepan - San Jose CA, US

Assignee:

Infineon Technologies AG - Munich

International Classification:

H04B 1/38

US Classification:

455560, 455561, 455101

Abstract:

A dynamically reconfigurable universal transmitter system is disclosed herein. The electronic device includes multiple transmitter resources for generating transmission signals, an output bus, and an antenna summer coupled to the output bus. The output bus is selectively coupled to the plurality of transmitter resources and it selectively receives transmission signals from the plurality of transmission resources. The antenna summer stores transmission signals received on the output bus.