Patent application number | Description | Published |
20100220937 | OPTIMIZATION OF IMAGE ENCODING USING PERCEPTUAL WEIGHTING - 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. | 09-02-2010 |
20100318600 | METHODS AND APPARATUS TO FACILITATE CLIENT CONTROLLED SESSIONLESS ADAPTATION - 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. | 12-16-2010 |
20110170408 | CONGESTION LEVEL INDICATION WITH EXPLICIT CONGESTION NOTIFICATION IN COMMUNICATION SYSTEMS - A method, apparatus, and computer program product for indicating and responding to various congestion levels in a communication system, such as a wireless communication network. A congestion level in the network is determined, and a percentage of data packets to be transmitted to an endpoint, such as user equipment or another network endpoint serving the user, are marked to indicate the congestion level. The endpoint determines the congestion level at the network from the percentage of received data packets that are marked and may initiate an appropriate response behavior in response to the determined congestion level. | 07-14-2011 |
20110170410 | EXPLICIT CONGESTION NOTIFICATION BASED RATE ADAPTATION USING BINARY MARKING IN COMMUNICATION SYSTEMS - A method, apparatus, and computer program product for responding to congestion levels in a communication system by rate adaptation. A congestion condition is indicated by marking data packets. In response to receiving an indication of congestion, a data rate is reduced. A rate reduction inhibit timer is started, and further rate reduction is initiated if congestion is indicated after the rate reduction inhibit timer has expired. A rate increase timer is used to initiate a rate increase if no indication of congestion is received during a rate increase time. | 07-14-2011 |
20120017004 | METHODS AND APPARATUS TO FACILITATE CLIENT CONTROLLED SESSIONLESS ADAPTATION - 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. | 01-19-2012 |
20140247722 | CONGESTION LEVEL INDICATION WITH EXPLICIT CONGESTION NOTIFICATION IN COMMUNICATION SYSTEMS - A method, apparatus, and computer program product for indicating and responding to various congestion levels in a communication system, such as a wireless communication network. A congestion level in the network is determined, and a percentage of data packets to be transmitted to an endpoint, such as user equipment or another network endpoint serving the user, are marked to indicate the congestion level. The endpoint determines the congestion level at the network from the percentage of received data packets that are marked and may initiate an appropriate response behavior in response to the determined congestion level. | 09-04-2014 |
Patent application number | Description | Published |
20100067395 | SYSTEM AND METHOD FOR COMMUNICATING USING AN IN-VEHICLE SYSTEM - 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. | 03-18-2010 |
20100067415 | SYSTEM AND METHOD FOR COMMUNICATING USING AN IN-VEHICLE SYSTEM - 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. | 03-18-2010 |
20100067439 | SYSTEM AND METHOD FOR COMMUNICATING USING AN IN-VEHICLE SYSTEM - 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. | 03-18-2010 |
20100069018 | SYSTEM AND METHOD FOR COMMUNICATING USING AN IN-VEHICLE SYSTEM - 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. | 03-18-2010 |
20100142444 | SYSTEM AND METHOD FOR COMMUNICATING USING AN IN-VEHICLE SYSTEM - 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 using a fountain code encoding protocol to form a series encoded packets, and repeatedly transmit the encoded packets until receiving an indication that the series of packets has been received at the receiving station. | 06-10-2010 |
20110063987 | SYSTEM AND METHOD FOR COMMUNICATING USING AN IN-VEHICLE SYSTEM - 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. | 03-17-2011 |
20130044628 | SYSTEM AND METHOD FOR COMMUNICATING USING AN IN-VEHICLE SYSTEM - 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. | 02-21-2013 |
20130122818 | SYSTEM AND METHOD FOR COMMUNICATING USING AN IN-VEHICLE SYSTEM - 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. | 05-16-2013 |
20130148705 | SYSTEM AND METHOD FOR COMMUNICATING USING AN IN-VEHICLE SYSTEM - 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. | 06-13-2013 |
Patent application number | Description | Published |
20090075703 | Providing Personal Emergency Data to a Public Safety Answering Point - A method for providing personal emergency data to a public safety answering point (PSAP). The method includes storing a piece of personal data before an emergency occurs, retrieving the piece of personal data after the emergency occurs, and transmitting the piece of personal data to the PSAP. | 03-19-2009 |
20110307581 | Media Presentation Description Delta File For HTTP Streaming - A method for obtaining media presentation description information. The method includes a client obtaining information related to a change in a first Media Presentation Description (MPD) on a server. The method further includes the client updating a second MPD on the client with the information related to the change. | 12-15-2011 |
20120110201 | METHOD AND APPARATUS FOR UPDATING HTTP CONTENT DESCRIPTIONS - A client device and a server receive and send a presentation streamed via HTTP. The client device sends a content request and the server receives the content request. The client device receives and the server sends a first presentation description based on the content request, wherein the presentation description comprises a fetch interval. The client device requests or otherwise receives a second presentation description before a duration associated with the fetch interval is exceeded. | 05-03-2012 |
20120203867 | METHOD AND APPARATUS FOR RECEIVING PRESENTATION METADATA - Method and devices for a client device to receive a presentation streamed via HTTP. The client device receives a first segment of the presentation, the first segment including presentation metadata related to a first presentation description of the presentation. The client device sends a request based at least in part on a portion of the presentation metadata related to the first presentation description. | 08-09-2012 |
20120278495 | REPRESENTATION GROUPING FOR HTTP STREAMING - A method to stream media content via hypertext transfer protocol that includes receiving, at a client device, metadata including an attribute indicating a grouping of representations of the media content where each representation of the grouping of representations comprises a respective encoding choice of the media content. | 11-01-2012 |
20130058586 | OPTIMIZATION OF IMAGE ENCODING USING PERCEPTUAL WEIGHTING - 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. | 03-07-2013 |
20130188922 | Multimedia File Support for Media Capture Device Position and Location Timed Metadata - A method is provided for recording data. The method comprises recording, by a device, a first set of samples of at least one of video data or audio data and recording, by the device, a second set of samples of information related to at least one of a position of the device or an orientation of the device. A plurality of samples in the first set are associated with a plurality of samples in the second set. | 07-25-2013 |
20140036048 | Real-Time Delivery of Location/Orientation Data - A method is provided providing position information. The method comprises sending, by a first device to a second device, via a real-time transmission protocol, a message specifying at least one position-related parameter associated with the second device. The method further comprises receiving, by the first device from the second device, via the real-time transmission protocol, the at least one position-related parameter. | 02-06-2014 |
20140057667 | SUPPORTING DEVICE-TO-DEVICE COMMUNICATION IN A RICH COMMUNICATION SERVICE CONTEXT - Methods, apparatus and articles of manufacture to support device-to-device communication in a rich communication service context are disclosed. Some example methods disclosed herein include sending, to a network node, first device-to-device capability information for a first device, the first device-to-device capability information being associated with device-to-device functionality supported by the first device, and receiving, from the network node, second device-to-device capability information for a second device associated with a contact stored in the first device, the second device-to-device capability information being associated with device-to-device functionality supported by the second device. Other example methods disclosed herein include receiving, from a first device, first device-to-device capability information for the first device, and sending, to the first device, second device-to-device capability information for a second device associated with a contact stored in the first device. | 02-27-2014 |
20140213306 | METHODS AND APPARATUS TO FACILITATE DEVICE-TO-DEVICE COMMUNICATION - Methods and apparatus to facilitate device-to-device communication with a remote device registered with a communication network are described. One example method may include obtaining an identity information of the second device from an address book, submitting the identity information of the second device to a communication network, estimating device-to-device (D2D) proximity of the second device, generating an indication of the proximity of the second device relative to the first device, and initiating a device-to-device communication session with the second device when the indication is that the second device is proximate. | 07-31-2014 |