James R Whitehead

Author:

James D. Whitehead

ISBN #:

0060695722

Author:

James D. Whitehead

ISBN #:

0268007306

Author:

James D. Whitehead

ISBN #:

0385171307

Author:

James D. Whitehead

ISBN #:

0385188293

Author:

James D. Whitehead

ISBN #:

0385196350

Author:

James D. Whitehead

ISBN #:

0385236123

Author:

James D. Whitehead

ISBN #:

0385242921

Author:

James D. Whitehead

ISBN #:

0595088953

US Patent:

7792093, Sep 7, 2010

Filed:

Nov 15, 2004

Appl. No.:

10/990105

Inventors:

John E. Myhre - Shoreline WA, US
Masud Kibria - Portland OR, US
James F. Whitehead - Mercer Island WA, US

Assignee:

AT&T Mobility II, LLC - Atlanta GA

International Classification:

H04L 12/56

US Classification:

370352, 3405724, 348 1401, 370328, 370329, 380247, 455410, 4554121, 455433, 455461, 455558, 713170, 726 12, 726 28

Abstract:

An analog telephone adapter (ATA) having a subscriber identity component in the format of a Subscriber Identity Module (SIM) that couples a telephone to a cellular network via Voice over Internet Protocol (VoIP), thereby allowing a cellular service provider to provide an alternative communication service for the home or business. Instead of using the plain old telephone service, a subscriber can plug their analog telephone into the SIM-enabled ATA (SIM-ATA) and receive telephone service from a cellular service provider, eliminating or reducing the need for a traditional Local Exchange Carrier. The SIM-ATA converts signals from analog to digital, and vice-versa. Once the analog telephone signal has been converted to digital, an IP-based protocol (e. g. , VoIP) can be used to transmit the telephone call over a digital network. The cellular service provider can then track usage and bill the subscriber accordingly.

US Patent:

61576166, Dec 5, 2000

Filed:

May 31, 1996

Appl. No.:

8/657917

Inventors:

James F. Whitehead - Bellevue WA

Assignee:

Lucent Technologies - Whippany NJ

International Classification:

H04J 314

US Classification:

370252

Abstract:

A method for transmission of digital information packets over a transmission channel. A transmitter computes a current value of a carrier-sense defer threshold and a transmit power level, based an observed ratios between recent packet transmission successes, recent packet collisions, recent packet deferrals, and an estimate of a path-loss characteristic of the transmission channel. The computed power level and carrier-sense defer threshold are selected to obtain a desired ratio of at least two of future packet success, future packet collisions, or future packet deferrals. The current carrier-sense defer threshold value is used to determine when a carrier signal for another transmitter's digital information packet is present on the transmission channel; transmission is deferred until the channel is determined to be clear of other packets. The packet is then transmitted at the computed power level.

US Patent:

62952854, Sep 25, 2001

Filed:

Apr 17, 1997

Appl. No.:

8/842755

Inventors:

James F. Whitehead - Mercer Island WA

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04Q 700

US Classification:

370329

Abstract:

A reuse management method for a packet-switched wireless network having a plurality of links between a plurality of terminal devices and at least one base station. Each link is a wireless connection in a medium between a terminal device of the plurality of terminal devices and the one base station. A request for a link in the medium for transmitting a data packet is received. Permission to transmit the data packet over the requested link is granted based on compatibility of the requested link with other links in the medium. Granting permission to transmit the data packet includes assigning a slot for transmitting the data packet over the requested link. The packet-switched wireless network is also coupled to a plurality of connections. Each connection has an associated quality of service and the packet-switched wireless network has a virtual service rate. A data packet is received from a connection of the plurality of connections, and is placed in a quality-of-service (QoS) queue based on the quality of service associated with the connection and based on the virtual service rate of the packet-switched wireless network.

US Patent:

57320772, Mar 24, 1998

Filed:

Feb 28, 1996

Appl. No.:

8/608164

Inventors:

James F. Whitehead - Bellevue WA

Assignee:

Lucent Technologies Inc. - Murray Hill NJ

International Classification:

H04B 7204

US Classification:

370349

Abstract:

A system is designed to allow collision to be avoided in a wireless local area network environment through the exchange (between a transmitting station and an intended receiving station) of handshake information that includes power level control signals indicative of power levels at which the sending and receiving stations are allowed to operate in order a) to avoid causing interference with communications between other stations, and b) to prevent other stations from causing interference in subsequent communications between the sending and receiving stations.