Michael W Patrick

US Patent:

7457313, Nov 25, 2008

Filed:

Dec 15, 2004

Appl. No.:

11/013226

Inventors:

Michael W. Patrick - Assonet MA, US

Assignee:

General Instrument Corporation - Horsham PA

International Classification:

H04J 3/16
H04J 3/22

US Classification:

370468, 370412

Abstract:

The HPRR method uses “token bucket” rate classifiers to mark each individual packet as conforming or not conforming to a traffic specification for the flow. Flows are considered to be in a single service class. One such class is distinguished as a default “best effort” service class. Each service class is assigned a weight corresponding to its fraction of bandwidth granted to the class when all classes are active. The HPRR method allows a packet from a flow to be forwarded in one of two ways, either as part of its class's allocated bandwidth or as part of the “best effort” bandwidth. By always providing two paths for a flow to send its packets, a flow is always given its “fair share” of two different classes: its primary or configured class and the best effort class. An overbooked class will have each of its flows compete for the inadequate bandwidth allocated to the class, but because each flow can use the best effort bandwidth it also gets a fair share of that bandwidth to allow the classes bandwidth guarantees to be when other classes are inactive.

US Patent:

7542422, Jun 2, 2009

Filed:

Aug 31, 2006

Appl. No.:

11/468974

Inventors:

Gerald R. Joyce - Newton MA, US
Christopher W. Brown - Warrington PA, US
Michael W. Patrick - Assonet MA, US

Assignee:

General Instrument Corporation - Horsham PA

International Classification:

H04L 12/26

US Classification:

370235

Abstract:

A method and apparatus for classifying video flows to minimize switching time at a user terminal is described. One aspect of the invention relates to classifying video for distribution. A plurality of classes associated with a respective plurality of network jitter measures is established. A jitter profile for a plurality of video flows is defined by associating each video flow of the plurality of video flows with one of the plurality of classes based on an estimated jitter measure of the video flow. The jitter profile is distributed towards at least one user terminal from a distribution facility. The user terminal may use the jitter profile to set the fill level of its jitter buffer dynamically according to the particular video flow being decoded.

US Patent:

8179883, May 15, 2012

Filed:

Jun 17, 2008

Appl. No.:

12/140830

Inventors:

Qi Bao - Westborough MA, US
David Flanagan - Framingham MA, US
Gerald R Joyce - Newton MA, US
Michael W Patrick - Assonet MA, US

Assignee:

General Instrument Corporation - Horsham PA

International Classification:

H04L 12/66

US Classification:

370352, 370217, 370354, 370401, 370466, 725110, 725111

Abstract:

An apparatus, method and system for delivering Internet Protocol (IP) content within a system that includes a bypass architecture, using a Session Encapsulation Information Database (SEIDB). Within an existing PacketCable Multimedia (PCMM) framework used as a control plane for IP content bypass flow setup, the SEIDB system stores session bypass encapsulation information for IP content bypass flows within the system. Within the SEIDB, each entry of bypass encapsulation information has a flow classifier component that uniquely identifies a bypass flow in a manner that allows both a cable modem termination system (CMTS) and the IP content source to uniquely identify the bypass flow at the SEIDB. Initially, the CMTS gathers bypass encapsulation information and uploads it to the SEIDB. Before the bypass flow begins, the IP content source obtains the necessary bypass encapsulation information from the SEIDB, e. g.

US Patent:

8468571, Jun 18, 2013

Filed:

Dec 21, 2007

Appl. No.:

11/962986

Inventors:

Gerald Joyce - Newton MA, US
Chris Brown - Warrington PA, US
Michael Patrick - Assonet MA, US
John Ulm - Pepperell MA, US

Assignee:

General Instrument Corporation - Horsham PA

International Classification:

H04N 7/173

US Classification:

725 90, 725 86, 725 87, 725 93, 725 94, 725 95

Abstract:

A method and system for enabling trick plays during a variable bit rate (VBR) playback of a media file transmitted to a user media device as a constant bit rate (CBR) flow includes determining a plurality of access points within the media file. The media file is configured to be played back from each of the plurality of access points. A minimum buffer value is calculated for each of the plurality of access points. The minimum buffer value identifies a minimum amount of the media file to transmit to the user media device before beginning playback of the media file from each of the plurality of access points to substantially ensure that the media file is configured to be played back from each of the plurality of access points continuously and uninterruptedly at a variable bit rate.

US Patent:

8516532, Aug 20, 2013

Filed:

Jul 26, 2010

Appl. No.:

12/843858

Inventors:

John M. Ulm - Pepperell MA, US
Patrick M. Maurer - Wayland MA, US
Michael W. Patrick - Assonet MA, US

Assignee:

Motorola Mobility LLC - Libertyville IL

International Classification:

H04N 7/173

US Classification:

725 95, 725 90, 725 93, 725 96

Abstract:

An IP video delivery system and method that allocates a first number of video streams for delivery on a number of channels that, provides a number of bonding groups, where each bonding group bonds at least one of the channels, and allocates a second number of video streams for delivery on the bonding groups. In one aspect, the method delivers the first video streams as unbonded on the channels. The bonding groups utilize bandwidth unused by the first video streams. In one aspect, the method utilizes bandwidth unused by the first or second video streams for high speed data. The method provides instantaneous load balancing to spread the first and second video streams across all available bandwidth in the channels, and delivers those video streams using a variable bit rate with no additional statistical multiplexing rate shaping to fit video streams into the channels.

US Patent:

20020136165, Sep 26, 2002

Filed:

Mar 23, 2001

Appl. No.:

09/816917

Inventors:

Roger Ady - Chicago IL, US
Michael Patrick - Assonet MA, US

International Classification:

G01R031/08
G06F011/00
G08C015/00

US Classification:

370/241000, 375/224000

Abstract:

A self testable communications device () such as a cable modem, a system () of remotely distributed such devices () and the method () of testing. One or more cable modems () are connected to a distribution hub (). Each cable modem () includes a connection test initiator, such as a button () on the cable modem (), on a web page or, on a computer () desk top which is accessible from the particular cable modem (). When a test () is initiated by pressing or selecting the button (), the system () initiates diagnostics () to check the connection of the cable modem () to the distribution hub (). After the test () is complete, the cable modem user is provided with an automatic response indicating connection test

US Patent:

20030202473, Oct 30, 2003

Filed:

Apr 25, 2002

Appl. No.:

10/132905

Inventors:

Michael Patrick - Assonet MA, US
Junjing Guo - Foxboro MA, US
Stephen Foley - North Attleboro MA, US

Assignee:

General Instrument Corporation

International Classification:

G08C015/00

US Classification:

370/235000, 370/238000

Abstract:

Distance vector routing protocols such as the Routing Information Protocol fail to rapidly reconfigure to use redundant links. By modifying the outgoing advertised hop count upon detecting a failure in a connection for which a backup or redundant connection exists, incoming traffic is diverted to the redundant or backup connection. An artificially high hop count is advertised for a given port, and when a failure or loss of reachability occurs in a connection associated with that port, an advertisement of a lower hop count on the backup or redundant connection for the given port is triggered. This causes rapid rerouting of incoming traffic to the backup or redundant connection.

US Patent:

20080148324, Jun 19, 2008

Filed:

Dec 19, 2006

Appl. No.:

11/612792

Inventors:

Gerald R. Joyce - Newton MA, US
Christopher W. Brown - Warrington PA, US
Michael W. Patrick - Assonet MA, US

Assignee:

GENERAL INSTRUMENT CORPORATION - Horsham PA

International Classification:

H04N 7/173

US Classification:

725 94, 725 96, 725 93

Abstract:

In a method for admitting a new data file into a channel, a request for admission of the new data file into the channel is received. It is determined as to whether at least a minimum number of bits of at least one current data file has been transferred to the receiver. The rate at which the at least one current data file is transferred is reduced below a minimum constant bit rate in response to a determination that at least a minimum number of bits of the at least one current data file has been transferred to the receiver and the new data file is admitted into the channel.