Timothy Curtis Wilson

US Patent:

6973052, Dec 6, 2005

Filed:

Dec 19, 2003

Appl. No.:

10/741659

Inventors:

Huai Y. Wang - Greenacres FL, US
Ye Chen - Schaumburg IL, US
Stephen P. Emeott - Rolling Meadows IL, US
Floyd D. Simpson - Lake Worth FL, US
Timothy J. Wilson - Rolling Meadows IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04B007/005

US Classification:

370278, 370338, 370449, 710 46

Abstract:

A mobile station establishes a schedule by which data is exchanged with an access point. The schedule allows the mobile station to use a low power mode at times outside of the scheduled service periods. However, the mobile station may occasionally need to retrieve additional data from the access point, or transmit additional data to the access point, and so initiates an unscheduled service period to do so.

US Patent:

7583643, Sep 1, 2009

Filed:

Sep 30, 2003

Appl. No.:

10/674984

Inventors:

Brian K. Smith - Wellington FL, US
Floyd D. Simpson - Lake Worth FL, US
Timothy J. Wilson - Rolling Meadows IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04Q 7/24

US Classification:

370338, 370311, 370329

Abstract:

The application provides an enhanced passive scanning method for a wireless local area network, including the steps of receiving () at least one of a beacon signal () or a gratuitous probe response (), updating () a site timing table entry in a site timing table based on the received beacon signal () or gratuitous probe response (), setting () a scan start time based on entries in the updated site timing table, and determining () a power mode for a wireless communication device based on the scan start time. An enhanced passive scanning system () and computer usable medium for enhanced passive scanning is also disclosed.

US Patent:

7675878, Mar 9, 2010

Filed:

Sep 10, 2004

Appl. No.:

10/938149

Inventors:

Floyd D. Simpson - Lake Worth FL, US
Stephen P. Emeott - Rolling Meadows IL, US
Brian K. Smith - Wellington FL, US
Timothy J. Wilson - Rolling Meadows IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04B 7/00

US Classification:

3703102, 370312, 370229, 370338, 370335, 370336

Abstract:

This application describes an enhanced passive scanning method for a wireless local area network, including the steps of transmitting at least one of a beacon signal or a gratuitous probe response in a WLAN channel by an access point. The gratuitous probe response is a supplemental beacon signal that is transmitted at intervals between the occurrence of regular beacon signals, but contains only essential information to allow mobile station manage roaming and timing.

US Patent:

8179862, May 15, 2012

Filed:

Oct 2, 2007

Appl. No.:

11/866075

Inventors:

Robert P. Kelly - Lauderhill FL, US
Brian K. Smith - Wellington FL, US
Timothy J. Wilson - Rolling Meadows IL, US

Assignee:

Motorola Mobility, Inc. - Libertyville IL

International Classification:

H04W 4/00
H04L 12/26
H04J 3/00

US Classification:

370332, 370252, 370465

Abstract:

A method for preventing co-channel operation with a radar system includes the steps of setting a state of a first communication channel to active, connecting to a first wireless access point on the first communication channel, passively scanning at least a second communication channel for communication from a second wireless access point, setting a state of the second channel to active if frames are received on the second channel, determining whether an elapsed time since frames were received on at least one of the first channel and the second channel has exceed a predefined value, and in response to the predefined value being exceeded for at least one of the first channel and the second channel, setting the state of a corresponding one of the first channel and the second channel to passive.