Stephen B Spear

US Patent:

6567667, May 20, 2003

Filed:

Aug 23, 2000

Appl. No.:

09/644916

Inventors:

Sanjay Gupta - Lakewood IL
Stephen Spear - Skokie IL
Kanapathipillai Ketheesan - Foster City CA

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04Q 720

US Classification:

455445, 455422, 455434, 455466

Abstract:

A cellular system ( ) includes network equipment ( ) and user equipment ( ). The network equipment can operate to inspect incoming messages from user equipment to identify service applications and direct incoming messages using the domain specified by the user equipment. User equipment can operate to construct messages for communication to a base station, which messages specify one of the circuit switch service domain ( ) and the packet switch service domain ( ) for the service and transmitting the constructed message to the base. According to one aspect of the system, the network equipment can transmit application and service information to the user equipment, responsive to which the user equipment can select the preferred domain for a message or session.

US Patent:

7020087, Mar 28, 2006

Filed:

Jan 13, 2003

Appl. No.:

10/341141

Inventors:

Paul D. Steinberg - Bartlett IL, US
Richard J. Malcolm - Carol Stream IL, US
Joseph M. Pedziwiatr - La Grange IL, US
Richard E. White - Cary IL, US
Daniel F. Tell - Lake Forest IL, US
Brian J. Moore - Palatine IL, US
Stephen L. Spear - Skokie IL, US
John M. Sauer - Naperville IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04L 12/26

US Classification:

370238, 370235, 370401, 370352

Abstract:

The invention provides for path optimization for routing of a communication session in a network having a plurality of core networks coupled to a plurality of access networks. Both a core network and an access network perform the path optimization by determining a plurality of possible paths to a plurality of target access points to form a target matrix, determining a corresponding route preference factor for each possible path of the target matrix, and selecting, from the target matrix, a possible path having an optimal route preference factor. An overall or complete path, for routing of the communication session, is then determined either by combining the selected possible paths, or by selecting one possible path as a complete path. The route preference factor, for each possible path, is determined based upon various routing variables, such as quality of service, bandwidth for the communication session, route complexity, interconnect cost, routing cost; resource loading, resource availability, and operator preference for traffic biasing.

US Patent:

7042855, May 9, 2006

Filed:

Feb 25, 2000

Appl. No.:

09/513043

Inventors:

Philip Gilchrist - Palatine IL, US
Sanjay Gupta - Chicago IL, US
Gregory C. Ladden - Vernon Hills IL, US
Stephen Spear - Skokie IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04Q 7/00

US Classification:

370328, 370338, 370401, 4554321

Abstract:

The present invention provides a method for routing data from a service request in a communication system. A context is transferred from a packet data gateway, such as a Serving GPRS (GSM Packet Radio Service) Support Node (SGSN), to a Base Station System (BSS) coupled thereto. The context specifies where data for this user should be sent. The service request is received at the BSS and includes data. The data from the service request is routed to an appropriate location, based at least in part upon the context.

US Patent:

7165112, Jan 16, 2007

Filed:

Jun 22, 2001

Appl. No.:

09/887831

Inventors:

Robert D. Battin - Kildeer IL, US
Rajeev Ranjan - Buffalo Grove IL, US
Stephen L. Spear - Skokie IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

G00F 15/16

US Classification:

709230

Abstract:

A communication system distributes the functions of a socket abstraction layer of the prior art between a socket abstraction layer included in an client communication device, such as a mobile subscriber, and a socket abstraction layer in a an agent communication device, such as an infrastructure serving the mobile subscriber. By so distributing the functions of the socket abstraction layer, headers may be reduced in signaling between the client communication device and the corresponding agent communication device as part of call set ups and tear downs and in the exchange of payloads between the client and agent communication devices. By reducing the required headers, overhead is reduced and bandwidth is conserved in communications between the client and agent communication devices, such as in over-the-air communications between a mobile subscriber and an infrastructure serving the mobile subscriber, with resulting increases in system capacity and improvements in system efficiency.

US Patent:

7330920, Feb 12, 2008

Filed:

Jun 30, 2005

Appl. No.:

11/171074

Inventors:

Greg R. Black - Vernon Hills IL, US
Robert M. Johnson - Lake Zurich IL, US
Stephen L. Spear - Skokie IL, US
Charles P. Binzel - Bristol WI, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

G06F 13/00
H04N 7/173
H04N 5/445
H04N 7/16
H04L 12/00
H04L 12/66

US Classification:

710105, 709232, 370357, 710 40, 37910012, 725 87

Abstract:

A method is provided for on-demand communications in a communication network with support for a plurality of communication units participating in a common communication, which includes multiple signal initiators, each supplying a signal, which are virtually simultaneously conveyed as part of the common communication. At least one example of an on-demand communication includes push to talk. Additionally, a signal initiator is provided, which is adapted to support on-demand communications in a multi-signal initiator environment.

US Patent:

20040248571, Dec 9, 2004

Filed:

Apr 8, 2004

Appl. No.:

10/492226

Inventors:

William Robinson - Grayslake IL, US
Stephen Spear - Skokie IL, US
Duane Rabe - Hawthorn Woods IL, US

International Classification:

H04Q007/20

US Classification:

455/433000, 455/422100

Abstract:

The present invention relates to a subscriber device that is capable of registering on more than one communication network simultaneously, and to a location register for a communication network for recording the networks on which the subscriber device is simultaneously registered. The subscriber device may be active on all registered networks, or only on one registered network. The location register may prioritise the list of network registrations. A method of maintaining the location register and of setting up a call to the subscriber device is also disclosed.

US Patent:

20050208943, Sep 22, 2005

Filed:

Mar 19, 2004

Appl. No.:

10/804292

Inventors:

Mark Pecen - Palatine IL, US
Sanjay Gupta - Lakewood IL, US
Stephen Spear - Skokie IL, US

International Classification:

H04B017/02

US Classification:

455436000, 455426100, 455466000

Abstract:

A method and apparatus for handover of a communication device between a first network and a second network while the communication device is in an ongoing communication. The communication device can register with the second network. The communication device can also enter an ongoing communication via the first network. The communication device can send a transfer request to the first network to request a handover of the ongoing communication between the first network and the second network without interrupting the ongoing communication.

US Patent:

20050227691, Oct 13, 2005

Filed:

Mar 19, 2004

Appl. No.:

10/804285

Inventors:

Mark Pecen - Palatine IL, US
Sanjay Gupta - Lakewood IL, US
Stephen Spear - Skokie IL, US

International Classification:

H04Q007/20

US Classification:

455435200, 455552100, 455436000

Abstract:

A method and apparatus for handover of a communication device between a first network and a second network while the communication device is in an ongoing communication. The communication device can register with the second network. The communication device can also enter an ongoing communication via the first network. The communication device can send a transfer request to the second network to request a handover of the ongoing communication between the first network and the second network without interrupting the ongoing communication.