David S Furbeck

US Patent:

8160104, Apr 17, 2012

Filed:

Aug 7, 2009

Appl. No.:

12/537960

Inventors:

Sean Simmons - Waterloo, CA
Stefan E. Janhunen - Waterloo, CA
David S. Furbeck - Irving TX, US

Assignee:

Research in Motion Ltd. - Waterloo, Ontario

International Classification:

H04J 3/24

US Classification:

370474, 370386, 370394, 370429, 4555501

Abstract:

A method to be used with first and second devices where the first device communicates with the second device via numbered data packets where the second device needs to know the number of each received packet upon reception, the method comprising the acts of at the first device, forming a plurality of separate initial data packets, for each initial data packet, associating a unique number with the initial data packet, combining the initial data packet with its associated unique number to form a numbered packet, calculating a checksum for the numbered packet, combining the checksum with the initial data packet to form a transmission packet that fails to include the associated unique number and transmitting the transmission packet to the second device.

US Patent:

8244901, Aug 14, 2012

Filed:

Sep 26, 2011

Appl. No.:

13/244730

Inventors:

David Furbeck - Irving TX, US

Assignee:

Research In Motion Limited - Waterloo, Ontario

International Classification:

G06F 15/16

US Classification:

709231, 709217

Abstract:

A disclosed example method for managing media content includes retrieving metadata for a plurality of encodings of the media content, wherein the metadata includes a first uniform resource locator (URL) and a first set of byte offsets for a first portion of the media content having a first encoding and a second URL and a second set of byte offsets for a second portion of the media content having a second encoding. The example method also includes requesting the first portion of the media content utilizing the first URL and the first set of byte offsets.

US Patent:

8300662, Oct 30, 2012

Filed:

Aug 10, 2009

Appl. No.:

12/538750

Inventors:

Sean Simmons - Waterloo, CA
Stefan E. Janhunen - Waterloo, CA
David S. Furbeck - Irving TX, US

Assignee:

Research In Motion Limited - Waterloo, Ontario

International Classification:

H04J 3/24

US Classification:

370474

Abstract:

A system and method for communicating wirelessly from a mobile device to a remote receiver station is disclosed. The system includes a controller configured to monitor a status of the mobile device and, upon an initiation event, initiate a data transfer process to wirelessly communicate data to the remote receiver station. The system also includes a voice-band modem that, upon initiation of the data transfer process is configured to receive data for transfer to the remote receiver station, divide the source data into a collection source packets, and encode the data using a fountain code encoding protocol to form a series of encoded packets. The voice band modem is also configured to transmit the series of encoded packets to the remote receiver station as a burst including all of the source data and repeatedly transmit the encoded packets until receiving an indication that the series of packets including all of the source data has been received at the receiving station.

US Patent:

8326067, Dec 4, 2012

Filed:

Feb 27, 2009

Appl. No.:

12/394144

Inventors:

David Furbeck - Irving TX, US

Assignee:

Research In Motion Limited - Waterloo, Ontario

International Classification:

G06K 9/36

US Classification:

382250, 382251

Abstract:

A method, system and computer program product for optimal encoding for an image defined by image data. The quantization table, run-length coding and Huffman codebook are selected to minimize a Lagrangian cost function, wherein the minimization includes iteratively determining the optimal run-size pairs and in-category indices for minimizing a rate-distortion cost function, and wherein the rate-distortion cost function includes a perceptual weighting factor applied to a quantization error. The perceptual weighting factor adjusts the rate-distortion cost function to apply greater weight to lower frequency quantization error than to higher frequency quantization error.

US Patent:

8351872, Jan 8, 2013

Filed:

Aug 7, 2009

Appl. No.:

12/537928

Inventors:

Sean Simmons - Waterloo, CA
Stefan E. Janhunen - Waterloo, CA
David S. Furbeck - Irving TX, US

Assignee:

Research In Motion Limited - Waterloo, Ontario

International Classification:

H04B 1/02
H04B 1/66

US Classification:

455102, 455126, 375300

Abstract:

A system and method to be used with first and second devices where the first and second devices are capable of communicating using a subset of different modulation schemes wherein the subset includes at least first and second different modulation schemes, the method for optimizing transmission of data from the first device to the second device, the method comprising the acts of at the first device, when data is to be transmitted from the first device to the second device, receiving at least a portion of a trigger signal from the second device wherein the transmitted trigger signal includes data transmitted using a sequence of at least two of the modulation schemes from the subset, the portion of the trigger signal received being a received trigger signal, analyzing the received trigger signal to identify one of the modulation schemes from the subset as a function of the received trigger signal as an initial modulation scheme to be used to transmit data to the second device and transmitting the data from the first device to the second device using the initial modulation scheme.

US Patent:

8381084, Feb 19, 2013

Filed:

Oct 22, 2008

Appl. No.:

12/256358

Inventors:

David Furbeck - Keller TX, US

Assignee:

Research In Motion Limited - Waterloo

International Classification:

H03M 13/03

US Classification:

714794, 714786, 340436

Abstract:

An apparatus, and an associated method, for correcting errors in decoded data, decoded by a convolutional decoder, such as an SOVA (Soft Output Viterbi Algorithm). A CRC check is performed upon the decoded data. If the CRC check fails, a conclusion is made that the decoded data contains errors. Portions of the decoded data indicated to exhibit low levels of reliability are toggled with values of most-likely error events. A corrected sequence of the decoded data is formed that corrects for the errors in the decoded data.

US Patent:

8385947, Feb 26, 2013

Filed:

Aug 10, 2009

Appl. No.:

12/538742

Inventors:

Sean Simmons - Waterloo, CA
Stefan E. Janhunen - Waterloo, CA
David S. Furbeck - Irving TX, US

Assignee:

Research In Motion Limited - Waterloo, Ontario

International Classification:

H04W 24/00

US Classification:

4554566, 4554352, 4555521, 370338

Abstract:

A system and method for communicating wirelessly from a mobile device to a remote receiver station is disclosed. The system includes a controller configured to monitor a status of the mobile device and, upon an initiation event, initiate a data transfer process to wirelessly communicate data to the remote receiver station. The system also includes a voice-band modem that, upon initiation of the data transfer process. The voice-band modem is configured to receive data for transfer to the remote receiver station, encode the data to form a series of encoded packets, and transmit the encoded packets to the remote receiver station using a first modulation scheme. Thereafter, unless an indication that the series of packets has been received by at the receiving station is provided, the voice-band modem automatically retransmit the encoded packets to the remote receiver station using a second modulation scheme.

US Patent:

8392598, Mar 5, 2013

Filed:

Jun 14, 2010

Appl. No.:

12/814566

Inventors:

David Furbeck - Irving TX, US

Assignee:

Research In Motion Limited - Waterloo, Ontario

International Classification:

G06F 15/16

US Classification:

709231, 709217

Abstract:

A disclosed example method for managing media content includes accessing metadata information for an available media and retrieving, from the accessed metadata, at least a uniform resource locator (URL) and one or more byte range, where one or more portions of the available media being addressable by the one or more byte range and the URL combination. The example method also includes sending a first request requesting a first at least one portion of the available media based on retrieved metadata.