William S Burchill

US Patent:

7912057, Mar 22, 2011

Filed:

Jan 12, 2007

Appl. No.:

11/623034

Inventors:

Brian D. Petry - San Diego CA, US
Dennis P. Connors - San Diego CA, US
Gene W. Marsh - Del Mar CA, US
Srikanth Gummadi - San Diego CA, US
Keerthi S. Govind - San Diego CA, US
William S. Burchill - San Diego CA, US
Seema Madan - San Diego CA, US

Assignee:

Wi-LAN Inc. - Ottawa, Ontario CA

International Classification:

H04L 12/28

US Classification:

370390

Abstract:

A wireless broadcast system includes receiving a data a stream by a convergence module. The convergence module partitions and encapsulates the transport packets into MAC protocol data units such that a size dimension of the encapsulated transport packets matches a size dimension of the MAC protocol data units. The MAC protocol data units are then provided to a transmitter that is synchronized to a plurality of transmitters in a single frequency network so that each transmitter in the network broadcast an identical signal that includes the MAC protocol data unit.

US Patent:

7944919, May 17, 2011

Filed:

Jan 12, 2007

Appl. No.:

11/623024

Inventors:

Dennis P. Connors - San Diego CA, US
Brian D. Petry - San Diego CA, US
Gene W. Marsh - Del Mar CA, US
Srikanth Gummadi - San Diego CA, US
Keerthi S. Govind - San Diego CA, US
William S. Burchill - San Diego CA, US
Seema Madan - San Diego CA, US

Assignee:

Wi-Lan, Inc. - Ottawa, Ontario

International Classification:

H04L 12/56
H04J 1/00

US Classification:

370390, 370343, 455 301

Abstract:

A wireless broadcast system that collects content for distribution over a wireless communication network. Multiple content streams are received and interleaved into an aggregate content stream. The aggregate content stream is encapsulated into a stream of transport packets that are ruggedized for broadcast over the wireless communication link. One connection identification is associated with the entire aggregate content stream. The aggregate content stream is packetized into multiple service data units. An identical signal that includes the service data units and one connection identifier is broadcast by multiple synchronized transmitters in a single frequency network. The content can include multimedia data, such as audio/video data, movies, game, audio broadcasts, television network programs, or other types of multimedia content.

US Patent:

8064444, Nov 22, 2011

Filed:

Jan 12, 2007

Appl. No.:

11/623032

Inventors:

Dennis P. Connors - San Diego CA, US
Brian D. Petry - San Diego CA, US
Gene W. Marsh - Del Mar CA, US
Srikanth Gummadi - San Diego CA, US
Keerthi S. Govind - San Diego CA, US
William S. Burchill - San Diego CA, US
Seema Madan - San Diego CA, US

Assignee:

WI-LAN Inc. - Ottawa

International Classification:

H04L 12/28
H04J 11/00

US Classification:

370390, 370343

Abstract:

A wireless broadcast system that collects content for distribution over a wireless communication network. At least one content stream is received and encapsulated into a stream of transport packets that are ruggedized for broadcast over the wireless communication link. The stream of transport packets are simultaneously broadcast as part of an identical signal from a plurality of synchronized transmitters in a single frequency network. The content can include multimedia data, such as audio/video data, movies, game, audio broadcasts, television network programs, or other types of multimedia content.

US Patent:

8331309, Dec 11, 2012

Filed:

Mar 9, 2009

Appl. No.:

12/400618

Inventors:

Gene Marsh - San Diego CA, US
Srikanth Gummadi - San Diego CA, US
William Burchill - San Diego CA, US
Michael Wengler - San Diego CA, US

Assignee:

Wi-LAN, Inc. - Ottawa, Ontario

International Classification:

H04W 4/00

US Classification:

370330

Abstract:

A configuration for downlink signals in a wireless communication system, methods of configuring the downlink signals, apparatus for generating the downlink signals, and apparatus for receiving and processing the downlink signals are described herein. Downlink signals in a wireless communication system are reconfigured in series of frames, with each frame carrying a preamble that provides fast cell search and system acquisition. In particular, the preamble includes a primary preamble and a secondary preamble, where the primary preamble is common to all sectors in a base station and all base stations in a system and the secondary preamble is effectively unique to each base station, and may be further distinguished based on a sector basis. In addition, pilot signals are aligned with base stations to occur at the same time within a frame and the PN sequence values of the pilot signals are based on a cell identification an antenna identification, thereby enabling prediction of pilots transmitted by interferers or neighboring base stations from acquisition of secondary preambles. Also, the pilot bits are selectively assigned from a center of an operating band outward.

US Patent:

20080170490, Jul 17, 2008

Filed:

Jan 12, 2007

Appl. No.:

11/623026

Inventors:

Dennis P. Connors - San Diego CA, US
Brian D. Petry - San Diego CA, US
Gene W. Marsh - Del Mar CA, US
Srikanth Gummadi - San Diego CA, US
Keerthi S. Govind - San Diego CA, US
William S. Burchill - San Diego CA, US
Seema Madan - San Diego CA, US

International Classification:

H04J 3/24

US Classification:

370203

Abstract:

A wireless broadcast system that collects content for distribution over a wireless communication network. The content stream is encapsulated into a stream of transport packets for broadcast over the wireless communication link. The stream of transport packets are simultaneously broadcast as part of an identical signal from a plurality of synchronized transmitters in a single frequency network. A receiver acquires the broadcast signal and synchronizes to the signal. Once the receiver is synchronized to one of the transmitters in the single frequency network, the receiver can receive signals from any, or multiple, of the transmitters in the network without re-synchronizing.

US Patent:

20090252070, Oct 8, 2009

Filed:

Jan 12, 2007

Appl. No.:

11/623027

Inventors:

Dennis P. Connors - San Diego CA, US
Brian D. Petry - San Diego CA, US
Gene W. Marsh - Del Mar CA, US
Srikanth Gummadi - San Diego CA, US
Keerthi S. Govind - San Diego CA, US
William S. Burchill - San Diego CA, US
Seema Madan - San Diego CA, US

International Classification:

G08C 17/00
H04L 27/28

US Classification:

370311, 375260

Abstract:

A wireless broadcast system that collects content for distribution over a wireless communication network. Multiple independent content streams can be coarsely interleaved by collecting multiple small segments of content of each stream and rearranging them into larger segments, that are interleaved into an aggregate content stream that is broadcast as an identical signal from multiple transmitters. The broadcast signal can also include information about the interleaved content, such as information identifying the occurrence of a later interleaved instance of the same independent content stream in the aggregate content stream, that can be used by a receiver to activate and deactivate portions of a receiver to conserve power.

US Patent:

20110116500, May 19, 2011

Filed:

Oct 18, 2010

Appl. No.:

12/906693

Inventors:

Brian P. Petry - San Diego CA, US
Dennis P. Connors - San Diego CA, US
Gene W. Marsh - San Diego CA, US
Srikanth Gummadi - San Diego CA, US
Keerthi S. Govind - San Diego CA, US
William S. Burchill - San Diego CA, US
Seema Madan - San Diego CA, US

Assignee:

WI-LAN INC. - Ottawa

International Classification:

H04L 12/56

US Classification:

370389

Abstract:

A method of encapsulating data and a single frequency network configured to perform the method are disclosed. A content stream of data packets is received, and the data packets in the content stream are formatted in accordance with a first protocol. Information identifying a container size established for the content stream is received. The data packets formatted in accordance with the first protocol are fragmented and packed to form data units formatted in accordance with a second protocol, and the data units are sized based on the container size. The data units formatted in accordance with the second protocol are encapsulated to form second protocol data packets. The second protocol data packets are provided to a transmitter that is synchronized to one or more transmitters in a single frequency network so that each transmitter in the single frequency network broadcasts a same signal that includes the second protocol data packets.

US Patent:

20120115553, May 10, 2012

Filed:

Nov 5, 2010

Appl. No.:

12/941008

Inventors:

Isabel G. Mahe - Los Altos CA, US
Jianxiong Shi - Pleasanton CA, US
Kee-Bong Song - Santa Clara CA, US
Ming Hu - Sunnyvale CA, US
William S. Burchill - San Jose CA, US
Syed A. Mujtaba - Santa Clara CA, US
Johnson O. Sebeni - Fremont CA, US
Haining Zhang - San Jose CA, US

International Classification:

H04W 88/02

US Classification:

4555757

Abstract:

Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry with first and second ports that are coupled by switching circuitry to first and second antennas. A first receiver in the transceiver circuitry may be associated with the first port and a second receiver in the transceiver circuitry may be associated with the second port. An electronic device may be operated in a single receiver mode in which only one of the receivers is active to conserve power or a dual receiver mode in which signals from both antennas may be received in parallel to compare antenna performance. Based on antenna performance metrics, the electronic device may adjust the switching circuitry to ensure that an optimal antenna is being used.