| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 348513000 | Frame or field synchronizers | 17 |
| 20090002554 | ELECTRIC FIELD EFFECT READ/WRITE HEAD, METHOD OF MANUFACTURING THE SAME, AND ELECTRIC FIELD EFFECT STORAGE APPARATUS HAVING THE SAME - An image display apparatus and method which remove double edges are provided. The image display apparatus includes a first driving unit which generates pulse signals indicating the beginning of each of a plurality of frames which constitute an image signal reproduced by adjusting a frame rate of an image signal, a second driving unit which performs impulsive driving while the pulse signals are generated, and a third driving unit which displays the frames received after the impulsive driving on a display. | 01-01-2009 |
| 20100053429 | Picture signal processing unit, image display unit, and picture signal processing method - A picture signal processing unit having a first and a second double rate conversion section, a storage section, and a quadruple rate conversion section is provided. The first double rate conversion section inserts a first interpolation frame between a couple of successive original frames to output the original frames and the first interpolation frames. The second double rate conversion section generates a second and a third interpolation frames and allocates the second and the third interpolation frames between the couple of successive original frames to output the second and the third interpolation frames. The storage section stores the original frame and the first to the third interpolation frames. The quadruple rate conversion section sequentially reads out the original frame and the first to the third interpolation frames from the storage section in a quadruple rate to output the original frame and the first to the third interpolation frames. | 03-04-2010 |
| 20100085481 | Frame based video matching - A method for identifying videos within a corpus of reference videos that match a query video is presented. The method includes receiving an input search criteria including search and matching parameters. The method includes indexing each reference video frame by frame and determining a visual signature based on visual signatures of all frames or a subset of frames. The method also includes determining a visual signature of the query video and comparing the visual signatures of each reference video to the query video and identifying matches. In one embodiment, indexing includes determining subsets of frames within each reference video including anchor, heart beat and key frames. A primary visual signature is based on the visual signatures of all frames within the reference video. A secondary visual signature is based on the visual signatures of at least one of the subsets within the reference video. | 04-08-2010 |
| 20110141355 | SYNCHRONIZATION OF VIDEO PRESENTATION BY VIDEO CADENCE MODIFICATION - A system synchronizes a video presentation to a master time reference (e.g., a corresponding audio presentation) by modifying a video cadence. The system detects when a displayed video leads or lags a master time reference by a programmable level or more. The system minimizes the synchronization error by inserting or removing source video frames to or from a frame cadence pattern. | 06-16-2011 |
| 20110205433 | VIDEO FRAME SYNCHRONIZATION - Embodiments of the invention are generally directed to video frame synchronization. An embodiment of a method includes receiving a first video data stream from a first source at a first port of a multi-port device, a first video frame of the first video data stream arriving at the first port at a first arrival time, and receiving a second video data stream from a second source at a second port of the multi-port device, a second video frame of the second video data stream arriving at the second port at a second arrival time. The method further includes determining an offset between the first arrival time and the second arrival time, determining one or more correction factors based at least in part on the offset, the one or more correction factors including a first correction factor for the first source, and sending a first command to the first source to modify a time of transmission by the first source of a third video frame following the first frame using the correction factor. | 08-25-2011 |
| 20110298979 | SYSTEM AND METHOD FOR IN-BAND A/V TIMING MEASUREMENT OF SERIAL DIGITAL VIDEO SIGNALS - A system and method for characterizing the relative offset in time between audio and video signals and enables the receiver of the audio and video signals to resynchronize the audio and video signals. Signal characterization data is dynamically captured and encoded into frames of video and audio data that is output by a television origination facility. The signal characterization data is extracted by the receiver and signal characterization data is captured for the received frames. The extracted signal characterization data is compared with the captured signal characterization data to compute the relative offset in time between the video and one or more audio signals for a frame. The receiver may then resynchronize the video and audio signals using the computed relative offset. | 12-08-2011 |
| 20120212671 | AUDIO-VISUAL SYSTEM AND METHOD FOR VIDEO CONTENT PLAYBACK THEREOF - A set top box (STB), which communicates with a display device and a number of audio-visual apparatuses, comprises one or more media processors, a video multiplexer, an audio multiplexer, and a transmitting module. The media processors receive a number of program channels selected by a number of users and identities corresponding to the audio-visual apparatuses, and demodulate the program channels into video streams and corresponding audio streams. The video multiplexer composes the video streams into an integrated video stream and the audio multiplexer composes the audio streams into an integrated audio stream. The STB transmits the integrated video stream and the integrated audio stream to the audio-visual apparatuses. | 08-23-2012 |
| 20140168514 | Video Frame Synchronization - Embodiments of the invention are generally directed to video frame synchronization. An embodiment of a method includes receiving a first video data stream from a first source at a first port of a multi-port device, a first video frame of the first video data stream arriving at the first port at a first arrival time, and receiving a second video data stream from a second source at a second port of the multi-port device, a second video frame of the second video data stream arriving at the second port at a second arrival time. The method further includes determining an offset between the first arrival time and the second arrival time, determining one or more correction factors based at least in part on the offset, the one or more correction factors including a first correction factor for the first source, and sending a first command to the first source to modify a time of transmission by the first source of a third video frame following the first frame using the correction factor. | 06-19-2014 |
| 20140176795 | RECEIVING APPARATUS AND RECEIVING METHOD THEREOF - A receiving apparatus is disclosed. The receiving apparatus comprises: a first receiving unit receiving first multimedia data, to which a first time code is added by frame, through a broadcast network; a second receiving unit receiving second multimedia data, to which a second time code is added by frame, through an IP network; a first signal processor for signal processing the first multimedia data and generating a first video frame; a second signal processor for signal processing the second multimedia data and generating a second video frame; a controller for comparing the first time code of the first multimedia data with the second time code of the second multimedia data, and calculating a difference in time stamp information on video frames having matching time codes; and a rendering unit for using the difference in time stamp information to read respective video frames that are synchronized from among the generated first video frame and the second video frame, and performing rendering. | 06-26-2014 |
| 20140333835 | Multi-Half-Tone Imaging and Dual Modulation Projection/Dual Modulation Laser Projection - Smaller halftone tiles are implemented on a first modulator of a dual modulation projection system. This techniques uses multiple halftones per frame in the pre-modulator synchronized with a modified bit sequence in the primary modulator to effectively increase the number of levels provided by a given tile size in the halftone modulator. It addresses the issue of reduced contrast ratio at low light levels for small tile sizes and allows the use of smaller PSFs which reduce halo artifacts in the projected image and may be utilized in 3D projecting and viewing. | 11-13-2014 |
| 20150036049 | CASCADED BIT SEQUENCES IN DISPLAY SYSTEMS - The present disclosure pertains to a method for designing cascaded bit sequences for cascaded digital displays. The method avoids unwanted interactions between cascaded sequences in cascaded digital displays. By using sequences with a particular structure, cascaded sequences can be designed such that no sequence is affected by the others. The following rules must be followed in constructing the sequence. First, the display devices must be frame-locked, so that the timing relationship between the sequences is maintained throughout each frame. Second, for each display device, the ratio of bit plane weights must remain constant, regardless of the pixel data displayed on the other display device(s). Third, the amount of bit plane skew must remain constant, regardless of the pixel data displayed on the other display device(s). Fourth, bit plane phased leakage must be compensated for or avoided. | 02-05-2015 |
| 20150098020 | METHOD AND SYSTEM FOR BUFFER LEVEL BASED FRAME RATE RECOVERY - Embodiments of the present invention can measure internal buffer levels (e.g., queue levels) within the sink device and dynamically adjust step size values responsive to buffer level conditions that dynamically alter the sink frame rate. As such, embodiments of the present invention can find an equivalent of the source device frame rate on the sink device based on the sink device's own clock speed. In this manner, transmission bandwidth may be preserved as clocking information does not to need to be continuously communicated between the source device and the sink device. | 04-09-2015 |
| 20150304526 | EXTERNAL VIDEO LOCKING AND SYNCHRONIZATION DEVICE - This disclosure describes an external video locking and synchronization device ( | 10-22-2015 |
| 20150332096 | Interactive Synchronization of Multiple Videos - There are provided systems and methods for an interactive synchronization of multiple videos. An example system includes a memory storing a first video and a second video, the first video including first video clips and the second video including second video clips. The system further includes a processor configured to calculate a histogram based on a number of features that are similar between the first video clips and the second video clips, generate a cost matrix based on the histogram, generate a first graph that includes first nodes based on the cost matrix, compute a path through the graph using the nodes, and align the first video with the second video using the path, where the path corresponds to playback speeds for the first video and the second video. | 11-19-2015 |
| 20160142592 | IMAGE CAPTURE APPARATUS HAVING FUNCTION OF GENERATING FRAME SYNCHRONIZATION SIGNAL AT CONSTANT CYCLE - An image capture apparatus including a timing generator that generates a frame synchronization signal with a constant cycle receives a reference signal generated at a predetermined interval based on a predetermined reference cycle, compares generation timing of the reference signal received with generation timing of the frame synchronization signal generated by the timing generator, and adjusts a generation cycle of the frame synchronization signal generated by the timing generator based on a result of the comparison. | 05-19-2016 |
| 20170237881 | DISPLAY APPARATUS AND CONTROL METHOD THEREOF | 08-17-2017 |
| 348514000 | Color television | 1 |
| 20120062793 | SYNCHRONIZING VIDEOS - A device may receive a first video, receive a second video, and locate first frames, in the first video, in which a first change in scene occurs. In addition, the device may locate second frames, in the second video, in which a second change in scene occurs. Further, the device may determine whether the first change in scene matches the second change in scene and achieve synchronization when the first change in scene matches the second change in scene. | 03-15-2012 |
