Patent application number | Description | Published |
20080205552 | METHOD AND APPARATUS FOR TRANSMISSION WITHIN A MULTI-CARRIER COMMUNICATION SYSTEM - Multiple transmit antenna transmission together with preferably pseudo-random, antenna-specific, scrambling (PRAS) is utilized to scramble incoming data differently on different antennas for those users requiring frequency diversity type transmissions. When PRAS is activated for a particular allocation, each transmit antenna applies a different scrambling sequence to the data symbols that are transmitted in the allocation. | 08-28-2008 |
20080219219 | METHOD AND APPARATUS FOR TRANSMISSION WITHIN A MULTI-CARRIER COMMUNICATION SYSTEM - A method and apparatus are provided for indicating to a communication unit a plurality of modulation and coding schemes (MCSs) to be utilized for communication. During a first MCS is determined for first resource blocks to be sent to a first remote unit or base station, and a second MCS is determined for a second resource block to be sent to the remote unit or base station. A message is transmitted indicating the first and the second MCS and also indicating the first resource blocks and the second resource block. Finally, a first PDU is transmitted to the remote unit or base station at a first time using the first MCS and the first resource blocks and a second PDU is transmitted to the remote unit or base station at the first time using the second MCS and the second resource block. | 09-11-2008 |
20080232240 | METHOD AND APPARATUS FOR RESOURCE ALLOCATION WITHIN A MULTI-CARRIER COMMUNICATION SYSTEM - A method and apparatus for performing resource allocation with lower required overhead is provided herein. Resource allocations for data transmissions are chosen in such a way as to provide channel quality information for various parts of the channel bandwidth (frequency selective channel quality information), such as allocating two different resource blocks (on different sets of subcarriers) to a mobile unit for two different transmissions. These data transmissions are used to estimate frequency selective channel quality information, thereby eliminating or greatly reducing the need for channel sounding with a broadband pilot. As a result, the overhead on the uplink of the communication system may be significantly reduced. | 09-25-2008 |
20080267271 | METHOD AND APPARATUS FOR CLOSED LOOP TRANSMISSION - In a wireless communication system, a method and apparatus for closed loop transmission is disclosed. In accordance with the preferred embodiment of the present invention, a time frequency portion of an uplink frame is dynamically reserved as a sounding zone for uplink channel sounding. A first message is transmitted to a first subscriber station in a downlink frame assigning a time-frequency resource within the sounding zone, and a sounding waveform. Furthermore, a signal is received from the subscriber station within the assigned time-frequency resource, a partial channel response is determined from the received sounding signal, and the subsequent transmission to the subscriber station is tailored based on the at least partial channel response. | 10-30-2008 |
20080273494 | METHOD AND APPARATUS FOR CLOSED LOOP TRANSMISSION - In a wireless communication system, a method and apparatus for closed loop transmission is disclosed. In accordance with the preferred embodiment of the present invention, a time frequency portion of an uplink frame is dynamically reserved as a sounding zone for uplink channel sounding. A first message is transmitted to a first subscriber station in a downlink frame assigning a time-frequency resource within the sounding zone, and a sounding waveform. Furthermore, a signal is received from the subscriber station within the assigned time-frequency resource, a partial channel response is determined from the received sounding signal, and the subsequent transmission to the subscriber station is tailored based on the at least partial channel response. | 11-06-2008 |
20080305805 | METHOD AND APPARATUS FOR PERFORMING SPATIAL-DIVISION MULTIPLE ACCESS - A method and apparatus for performing spatial-division multiple access within a communication system is provided herein. During operation, nodes will return null subspace information along with their channel subspace information. The null subspace is similar to the channel subspace except that the null subspace information directs a base station to the matrix in a predefined codebook that results in minimum power being received at the node. The null subspace for each node is taken into consideration when communicating with a particular node. | 12-11-2008 |
20090067377 | MEDIUM ACCESS CONTROL FRAME STRUCTURE IN WIRELESS COMMUNICATION SYSTEM - A wireless communication infrastructure entity configured to allocate radio resources, in a radio frame, to a wireless terminal compliant with a first protocol and to a wireless terminal compliant with a second protocol. The radio frame including a first protocol resource region and a second protocol resource region. The radio frame including a first protocol allocation control message that allocates resources within the first protocol resource region to the wireless terminal compliant with the first protocol, and a second protocol allocation control message that allocates resources within the second protocol resource region to the wireless terminal compliant with the second protocol. | 03-12-2009 |
20090161749 | METHOD AND APPARATUS FOR IFDMA RECEIVER ARCHITECTURE - A method and receiver for processing a composite signal ( | 06-25-2009 |
20090168730 | Pilot Signal Allocation Method and Apparatus - A pilot (or reference) transmission scheme is utilized where different transmitters are assigned pilot sequences with possibly different cyclic time shifts and different base pilot sequences. A pilot signal is transmitted concurrently by the transmitters in a plurality of pilot blocks, and a receiver processes the plurality of received pilot blocks to recover a channel estimate for at least one of the transmitters while suppressing the interference due to the pilot signals from the other transmitters. | 07-02-2009 |
20090196164 | METHOD AND APPARATUS FOR CLOSED LOOP TRANSMISSION - In a wireless communication system, a method and apparatus for closed loop transmission is disclosed. In accordance with the preferred embodiment of the present invention, a time frequency portion of an uplink frame is dynamically reserved as a sounding zone for uplink channel sounding. A first message is transmitted to a first subscriber station in a downlink frame assigning a time-frequency resource within the sounding zone, and a sounding waveform. Furthermore, a signal is received from the subscriber station within the assigned time-frequency resource, a partial channel response is determined from the received sounding signal, and the subsequent transmission to the subscriber station is tailored based on the at least partial channel response. | 08-06-2009 |
20090238303 | METHOD AND SYSTEM FOR CODEBOOK-BASED CLOSED-LOOP MIMO USING COMMON PILOTS AND ANALOG FEEDBACK - A method and system that enables the usage of sounding-based feedback or analog feedback in a MIMO communication system with non-beamformed or broadcast pilot symbols is disclosed. The mobile station may employ a feedback channel to send a sounding waveform to a base station, a feedforward channel to receive from the base station codebook weights derived from the send sounding waveform, a receiver to receive communication from the base station, and a processor to detect beamformed data from the received communication and received codebook weights from the base station. The base station processes the sounding waveform to determine codebook weights on groups of subcarriers. Additionally, the base station transmits the beamformed payload and broadcast pilots to the mobile station. | 09-24-2009 |
20090310589 | ADAPTIVE DC SUB-CARRIER HANDLING IN A RECEIVER - Receiving units will switch between performing a DC bias suppression and not removing the DC distortion at the receiver depending on the amount of DC interference level observed/measured/estimated. Since the overall DC interference is from all uplink transmitters, potentially at different power levels, the amount of DC distortion can be measured based on the difference between the received power level and the expected power level on the DC sub-carrier. Additionally it can be estimated based on the number of active transmitters, their allocation bandwidth, power control target and/or a rough estimate of the DC distortion introduced by each active transmitter and also the distortion introduced by the receiver. Once this distortion level is estimated, a decision is then made whether or not to remove the DC distortion. | 12-17-2009 |
20100189047 | COOPERATIVE COMMUNICATIONS USING MULTIPLE ACCESS POINTS TO IMPROVE DATA INTEGRITY | 07-29-2010 |
20100296475 | METHOD AND APPARATUS FOR DETERMINING AN APPROPRIATE LINK PATH IN A MULTI-HOP COMMUNICATION SYSTEM - A determination of link quality (C | 11-25-2010 |
20110211542 | METHOD AND APPARATUS FOR INTERLEAVING SEQUENCE ELEMENTS OF AN OFDMA SYNCRHONIZATION CHANNEL - A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted including a plurality of sequence elements interleaved in time and frequency. The synchronization channel signal sequence elements enable an initial acquisition and cell search method with low computational load by providing predetermined time domain symmetry for common sequence elements in OFDMA symbol periods for OFDMA symbol timing detection and frequency error detection in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length. | 09-01-2011 |
20110216723 | METHOD AND APPARATUS FOR TRANSMISSION WITHIN A MULTI-CARRIER COMMUNICATION SYSTEM - A method and apparatus are provided for indicating to a communication unit a plurality of modulation and coding schemes (MCSs) to be utilized for communication. During a first MCS is determined for first resource blocks to be sent to a first remote unit or base station, and a second MCS is determined for a second resource block to be sent to the remote unit or base station. A message is transmitted indicating the first and the second MCS and also indicating the first resource blocks and the second resource block. Finally, a first PDU is transmitted to the remote unit or base station at a first time using the first MCS and the first resource blocks and a second PDU is transmitted to the remote unit or base station at the first time using the second MCS and the second resource block. | 09-08-2011 |
20110268079 | METHOD AND APPARATUS FOR INITIAL ACQUISITION AND CELL SEARCH FOR AN OFDMA SYSTEM - A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted within a localized portion of a bandwidth of the OFDMA signal, the synchronization channel signal having predetermined time domain symmetry within the localized portion of the bandwidth and including information for providing at least partial cell identification information. The synchronization channel signal enables an initial acquisition and cell search method with low computational load which provides OFDMA symbol timing detection and frequency error detection and frame boundary detection and cell specific information detection in an OFDMA system supporting multiple system bandwiths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length. | 11-03-2011 |
20110268104 | METHOD AND APPARATUS FOR INITIAL ACQUISITION AND CELL SEARCH FOR AN OFDMA SYSTEM - A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted within a localized portion of a bandwidth of the OFDMA signal, the synchronization channel signal having predetermined time domain symmetry within the localized portion of the bandwidth and including information for providing at least partial cell identification information. The synchronization channel signal enables an initial acquisition and cell search method with low computational load which provides OFDMA symbol timing detection and frequency error detection and frame boundary detection and cell specific information detection in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length. | 11-03-2011 |
20110310837 | METHOD AND APPARATUS FOR REDUCING ROUND TRIP LATENCY AND OVERHEAD WITHIN A COMMUNICATION SYSTEM - During operation radio frames are divided into a plurality of subframes. Data is transmitted over the radio frames within a plurality of subframes, and having a frame duration selected from two or more possible frame durations. | 12-22-2011 |
20120030723 | METHOD AND APPARATUS FOR STREAMING VIDEO - A method and apparatus for transmitting video is provided herein. A video representation is segmented into video chunks, with each chunk spanning a different time interval. Each chunk may be divided into two or more sub-chunks. During operation, the client requests a sub-chunk of a particular video chunk and then possibly requests an additional sub-chunk of the video chunk. The client then combines and decodes the sub-chunks to provide a reconstructed video chunk for playback on a device. In an embodiment, I-frames of a video chunk are made available in a separate sub-chunk file than P-frames (or B-frames). | 02-02-2012 |
20120069764 | METHOD AND APPARATUS FOR DOWNLINK RESOURCE ALLOCATION IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION SYSTEM - A communication is provided that schedules both Distributed Virtual Resource Blocks (DVRB) and Localized Virtual Resource Blocks (LVRB) in a same frequency channel, thereby obtaining the benefits of frequency selective scheduling while minimizing the uplink feedback overhead. In one embodiment of the invention, the communication system assigns one or more downlink Physical Resource Blocks (PRBs) of multiple downlink Physical Resource Blocks (PRBs) to each user equipment (UE) given an LVRB to produce at least one reserved PRB and multiple non-reserved PRBs and assigns a part of each PRB of the multiple non-reserved PRBs to a UE given a DVRB. In another embodiment of the invention, the communication system assigns PRBs pre-reserved for localized transmission to UEs scheduled for LVRBs and assigns parts of multiple PRBs pre-reserved for distributed transmission to each UE given a DVRB. | 03-22-2012 |
20120079000 | SELECTIVELY RECEIVING MEDIA CONTENT - Disclosed are methods for associating size information with each chunk of a media presentation. This size information is sent to an end-user device. There are many ways to characterize the size of a chunk beyond simply giving the number of bytes in the chunk. Some embodiments send an approximation of the size or a relative size. In some embodiments, a server publishes a “reference” value for a media presentation and then, for each chunk, gives the size relative to that reference value. The device decides whether or not to download the chunk. The device might decide that it is unlikely that the next chunk can be downloaded in time. Then, to avoid the possibility of a video freeze, the device could request the next chunk at a lower resolution. In some situations, the device decides to request a completely different chunk or to not request any chunk at all. | 03-29-2012 |
20120079059 | SELECTIVELY RECEIVING MEDIA CONTENT - Disclosed are methods that associate “importance” information with chunks of a media presentation. An end-user device or server uses this information to intelligently manage resources when downloading or rendering the media presentation. Many different types of importance information are used. An editor can tag a chunk as important based on the content of the chunk or may give the chunk a rating, or importance can be inferred from download statistics. In some embodiments, the end-user device determines the importance of a chunk based on observations of the behavior of the device's user. The end-user device can send its locally gathered behavioral observations to a server to enhance that server's demographic information. The server can observe its own download behavior to infer importance. The end-user device may choose to either not download, or to download at a low resolution, those chunks deemed to be unimportant, thus saving bandwidth and battery power. | 03-29-2012 |
20120079062 | SELECTIVELY RECEIVING MEDIA CONTENT - Disclosed are methods that associate “importance” information with chunks of a media presentation. An end-user device or server uses this information to intelligently manage resources when downloading or rendering the media presentation. Many different types of importance information are used. An editor can tag a chunk as important based on the content of the chunk or may give the chunk a rating, or importance can be inferred from download statistics. In some embodiments, the end-user device determines the importance of a chunk based on observations of the behavior of the device's user. The end-user device can send its locally gathered behavioral observations to a server to enhance that server's demographic information. The server can observe its own download behavior to infer importance. The end-user device may choose to either not download, or to download at a low resolution, those chunks deemed to be unimportant, thus saving bandwidth and battery power. | 03-29-2012 |
20120113927 | METHOD AND APPARATUS FOR INTERLEAVING SEQUENCE ELEMENTS OF AN OFDMA SYNCHRONIZATION CHANNEL - A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted including a plurality of sequence elements interleaved in time and frequency. The synchronization channel signal sequence elements enable an initial acquisition and cell search method with low computational load by providing predetermined time domain symmetry for common sequence elements in OFDMA symbol periods for OFDMA symbol timing detection and frequency error detection in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length. | 05-10-2012 |
20120140645 | METHOD AND APPARATUS FOR DISTRIBUTING VIDEO - A method and apparatus for distributing live video to multiple client devices is provided herein. In particular, a router is provided that acts on behalf of all client devices in its network. The router serves multiple groups of client devices with each group being formed by client devices having similar bandwidth requirements. The router then requests and receives video chunks from a network. The router then redistributes the video chunks to the multiple client devices using a multicast transmission. In particular, to minimize the demands on the core network, the router sets up a separate multicast to each group. Live video, of the appropriate quality is then multicast to each group. | 06-07-2012 |
20120140843 | METHOD AND APPARATUS FOR TRANSMISSION WITHIN A MULTI-CARRIER COMMUNCATION SYSTEM - Multiple transmit antenna transmission together with preferably pseudo-random, antenna-specific, scrambling (PRAS) is utilized to scramble incoming data differently on different antennas for those users requiring frequency diversity type transmissions. When PRAS is activated for a particular allocation, each transmit antenna applies a different scrambling sequence to the data symbols that are transmitted in the allocation. | 06-07-2012 |
20120143994 | SELECTIVELY RECEIVING MEDIA CONTENT - Disclosed are methods that associate “importance” information with chunks of a media presentation. An end-user device uses this information to intelligently manage resources when downloading or rendering the media presentation. An editor tags a chunk as important based on the contents of the chunk. The importance information includes a recommendation that this chunk be rendered at a higher-than-usual resolution and that the end-user device start downloading this chunk out of order. An advertiser recommends that an advertisement be rendered at a resolution high enough for the end user to view it appropriately. The importance information can include a recommended point at which to display the advertisement (e.g., between scenes in the media presentation). The end-user device can download advertisements before they are needed. Later, when the user requests a media presentation, an already downloaded advertisement is rendered while the initial chunks of the media presentation are downloaded. | 06-07-2012 |
20120144445 | METHOD AND APPARATUS FOR DISTRIBUTING VIDEO - A method and apparatus for distributing live video to multiple client devices is provided herein. In particular, a router is provided that acts on behalf of all client devices in its network. The router serves multiple groups of client devices with each group being formed by client devices having similar bandwidth requirements. The router then requests and receives video chunks from a network. The router then redistributes the video chunks to the multiple client devices using a multicast transmission. In particular, to minimize the demands on the core network, the router sets up a separate multicast to each group. Live video, of the appropriate quality is then multicast to each group. | 06-07-2012 |
20120243501 | Method and Apparatus for Closed Loop Transmission - In a wireless communication system, a method and apparatus for closed loop transmission is disclosed. In accordance with the preferred embodiment of the present invention, a time frequency portion of an uplink frame is dynamically reserved as a sounding zone for uplink channel sounding. A first message is transmitted to a first subscriber station in a downlink frame assigning a time-frequency resource within the sounding zone, and a sounding waveform. Furthermore, a signal is received from the subscriber station within the assigned time-frequency resource, a partial channel response is determined from the received sounding signal, and the subsequent transmission to the subscriber station is tailored based on the at least partial channel response. | 09-27-2012 |
20130124664 | COORDINATING MEDIA PRESENTATIONS AMONG PEER DEVICES - A group of “servant” devices each downloads a media presentation and renders the presentation to a local user. However, a “master” device directs the servants as to which chunks to download and when to render the presentation. In this way, the master keeps the presentations on the separate servants in synchrony. The master uses status information from the servants to coordinate the downloads. If, for example, one servant is having a difficult time keeping up with the presentation, then the master may choose to direct that servant to download a reduced-resolution version of the presentation (which requires less bandwidth to download). If the user of one of the servant devices enters a playback command, then that command is not executed locally but is instead sent to the master device which in turn sends the command to all of the servants so that they may execute the playback command in synchrony. | 05-16-2013 |
20130132521 | PRESENTING ALTERNATIVE MEDIA CONTENT BASED ON ENVIRONMENTAL FACTORS - The environment surrounding an end-user device is analyzed. When a user of the device requests a download of a media presentation, the device uses the results of the environmental analysis to automatically request an alternative audio or video track for the media presentation. By choosing a better alternative before the download even begins, the device avoids user frustration and conserves resources. For example, a user requests a music video to be played on his mobile phone. By using its microphone, the phone analyzes its current audio environment and concludes that there is considerable background noise. Then when requesting a download of the music video, the phone requests an “enhanced-clarity” soundtrack to increase the odds that its user will be able to hear the music over the background noise. In some situations, the alternative track is rendered in addition to, rather than instead of, the default tracks of the media presentation. | 05-23-2013 |
20130294343 | METHOD AND APPARATUS FOR INITIAL ACQUISITION AND CELL SEARCH FOR AN OFDMA SYSTEM - A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted within a localized portion of a bandwidth of the OFDMA signal, the synchronization channel signal having predetermined time domain symmetry within the localized portion of the bandwidth and including information for providing at least partial cell identification information. The synchronization channel signal enables an initial acquisition and cell search method with low computational load which provides OFDMA symbol timing detection and frequency error detection and frame boundary detection and cell specific information detection in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length. | 11-07-2013 |
20130297704 | METHODS FOR COORDINATING COMMUNICATIONS BETWEEN A PLURALITY OF COMMUNICATION DEVICES OF A USER - A communication device performs a method for coordinating communications between a plurality of communication devices of a user. The method includes detecting an active communication session on a primary communication device having user engagement, and determining a set of secondary communication devices in proximity to the user. The method further includes detecting an interruption event, at the primary communication device, during the active communication session. Additionally, the method includes determining that a first secondary communication device, in the set of secondary communication devices, has capability to process the interruption event, and transferring the interruption event to the first secondary communication device. | 11-07-2013 |
20130347017 | IDENTIFYING MEDIA ON A MOBILE DEVICE - Disclosed is a method of associating, at a secondary device, secondary media content with primary media content being output at a primary device. The method includes receiving, at the secondary device, first information based upon the primary content being output at the primary device, wherein the first information includes at least one of an audio and a visual signal, determining at the secondary device second information corresponding to the first information, receiving at the secondary device one or more portions of secondary media content that have been made available by a third device, determining at the secondary device whether one or more of the portions of the secondary media content match one or more portions of the second information, and taking at least one further action upon determining that there is a match. | 12-26-2013 |
20140028917 | DISPLAYING MULTIMEDIA - Disclosed are methods and apparatus for displaying multimedia feeds. The method comprises receiving a plurality of multimedia feeds and, for each of the plurality of multimedia feeds, acquiring a value of a metric and displaying, on a common display, the plurality of multimedia feeds. The metric is variable and its value for a particular multimedia feed and for a particular time is dependent upon either events occurring within that particular multimedia feed at or before that particular time or upon a rating (by one or more entities), at that particular time, of that particular multimedia feed. The multimedia feeds are displayed on the common display such that a first feed is displayed in a manner different from the manner of display of a second feed, the first feed having a first metric value, the second feed having a second metric value, and the first and second metric values being different. | 01-30-2014 |
20140044064 | RESOURCE ALLOCATION INCLUDING A DC SUB-CARRIER IN A WIRELESS COMMUNICATION SYSTEM - A method in a wireless communication terminal ( | 02-13-2014 |
20140254806 | SYSTEMS AND METHODS FOR INTERACTIVE BROADCAST CONTENT - Devices and methods for scoring viewer's interactions with content broadcast on a presentation device by processing at least one audio signal received by a microphone proximate the viewer and the presentation device, to generate at least one audio signature, which is compared to at least two different reference audio signatures. | 09-11-2014 |
20140270500 | PLAYFIELD DETECTION AND SHOT CLASSIFICATION IN SPORTS VIDEO - A method of classifying the shot type of a video frame, comprising loading a frame, dividing the frame into field pixels and non-field pixels based on a first playfield detection criteria, determining an initial shot type classification using the number of the field pixels and the number of the non-field pixels, partitioning the frame into one or more regions based on the initial classification, determining the status of each of the one or more regions based upon the number of the field pixels and the non-field pixels located within each the region, and determining a shot type classification for the frame based upon the status of each the region. | 09-18-2014 |
20140270504 | LOGO PRESENCE DETECTION BASED ON BLENDING CHARACTERISTICS - A video processing system detects an overlay image, such as a logo, in a picture of a video stream, the overlay for example being a broadcaster's logo. The detection is based on evaluation of blending characteristics of a picture frame. The method of detection of an overlay defines first and second areas within the image, the first and second areas being non-overlapping. Next an alpha-blended value is calculated for the mean color value of the second area with an overlay color value. Then, if the mean color value of the first area is closer to the alpha-blended value than it is to the mean color value of the second area, the overlay can be indicated as detected and defined within the picture. Detection of the overlay can be used to identify an owner of the video, or detect when a scene change such as a commercial occurs. | 09-18-2014 |
20140282642 | ATTENTION ESTIMATION TO CONTROL THE DELIVERY OF DATA AND AUDIO/VIDEO CONTENT - A method implemented in a computer system for controlling the delivery of data and audio/video content. The method delivers primary content to the subscriber device for viewing by a subscriber. The method also delivers secondary content to the companion device for viewing by the subscriber in parallel with the subscriber viewing the primary content, where the secondary content relates to the primary content. The method extracts attention estimation features from the primary content, and monitors the companion device to determine an interaction measurement for the subscriber viewing the secondary content on the companion device. The method calculates an attention measurement for the subscriber viewing the primary content based on the attention estimation features, and the interaction measurement, and controls the delivery of the secondary content to the companion device based on the attention measurement. | 09-18-2014 |
20150070587 | Generating Alerts Based Upon Detector Outputs - Systems and methods for generating alerts and enhanced viewing experience features using on-screen data are disclosed. Textual data corresponding to on-screen text is determined from the visual content of video data. The textual data is associated with corresponding regions and frames of the video data in which the corresponding on-screen text was detected. Users can select regions in the frames of the visual content to monitor for a particular triggering item (e.g., a triggering word, name, or phrase). During play back of the video data, the textual data associated with the selected regions in the frames can be monitored for the triggering item. When the triggering item is detected in the textual data, an alert can be generated. Alternatively, the textual data for the selected region can be extracted to compile supplemental information that can be rendered over the playback of the video data or over other video data. | 03-12-2015 |
20150082349 | Content Based Video Content Segmentation - A method receives video content and metadata associated with video content. The method then extracts features of the video content based on the metadata. Portions of the visual, audio, and textual features are fused into composite features that include multiple features from the visual, audio, and textual features. A set of video segments of the video content is identified based on the composite features of the video content. Also, the segments may be identified based on a user query. | 03-19-2015 |