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196 results about "High definition tv" patented technology

High definition television. A digital television system which has an image resolution of 720 horizontal lines of resolution or higher. A high definition television is able to do a better job displaying higher quality (increased resolution) images, including television programs filmed in high definition formats, or Blu-ray DVDs.

Secure integrated media center

A set-top media system is disclosed which can be combined with an open architecture personal computer (PC) to provide a feature-rich secure integrated media center while meeting security rules of most major conditional access and content protection industry rules such as Cable Labs DFAST and PHILA agreements; and DTLA agreements for 5C-DTCP for IEEE1394, USB, and IP. The set-top media center and PC share common resources such as high definition display, remote control, hard disk drive, and other external unsecure storage devices. All media content is available seamlessly using a PC user interface, including controlled-content media such as high definition TV, within a PC desktop window. All controlled-content media is manipulated and managed within the set-top media system in a seamless manner. A novel mechanism is disclosed to allow controlled-content media to be stored on unsecure devices in encrypted form while overcoming the disk cloning attack problem for move operations.
Owner:SAADAT ABBAS SASAN +1

Equalization and decision-directed loops with trellis demodulation in high definition TV

Improved decision feedback equalizer and decision directed timing recovery systems and methods suitable for use in connection with a dual mode QAM / VSB receiver system are disclosed. A trellis decoder operates in conjunction with a decision feedback equalizer circuit on trellis coded 8-VSB modulated signals. The trellis decoder includes a 4-state traceback memory circuit outputting a maximum likelihood decision as well as a number of intermediate decisions based upon the maximum likelihood sequence path. Any number of decisions, along the sequence, may be provided as an input signal to timing recovery system loops, with the particular decision along the sequence chosen on the basis of its delay through the trellis decoder. Variable delay circuitry is coupled to the other input of the timing recovery system loops in order to ensure that both input signals bear the same timestamp. Final decisions are output from the trellis decoder to a DFE in order to enhance the DFE's ability to operate in low SNR environments. A decision sequence estimation error signal is also generated and used to drive the tap updates of both the DFE and an FFE portion of the equalizer.
Owner:AVAGO TECH INT SALES PTE LTD

Systems and methods for MPEG subsample decoding

Decimating MPEG or other video data by subsampling the output of an inverse discrete cosine transform (IDCT) module. The decimation process is useful for reducing the volume of data that must be processed to display images on a display device, particularly when the volume of video data received at the decoder is greater than the amount needed to take advantage of the resolution of the display device. For example, high definition television data can be decimated for display on a standard television display device or in a picture-in-picture window, thereby reducing the amount of processing resources needed at the decoder and reducing the size of the frame buffers. Subsampling the output of the IDCT module reduces the volume of data and, for relatively static or constant pans, there is not a significant compounded loss of image quality as successive frames are decoded.
Owner:MICROSOFT TECH LICENSING LLC

Displaying broadcasts of multiple camera perspective recordings from live activities at entertainment venues on remote video monitors

Broadcast methods and systems for simultaneously transmitting, processing and selectively displaying more than one video camera perspectives recorded at live entertainment venues on remote video monitors. Video recording can be from more than one entertainment venue or can be more than on synchronized video camera perspective of an activity at an entertainment venue. Remote video monitors can be venue-based hand held devices or video monitors used at home. Remote video monitors can include hand held devices and high definition televisions (e.g., HDTVs) including flat panel display screens therein. Within a venue, camera views can be processed and formatted for display on display screens associated with remote video monitor. A user can select from more than one view from video cameras that the user wants displayed on the remote viewer, enabling a user of the remote video monitor to view more than one camera view through the remote viewer at a time / simultaneously.
Owner:FRONT ROW TECH

Methods and systems for enabling software and firmware downloads to high definition television appliances

The present invention enables software and firmware downloads to high definition television (HDTV) appliances via a television terminal. A download control message received at the terminal may comprise: (i) a first version identifier identifying a version of an available software or firmware download; (ii) a first type identifier identifying a particular type of HDTV appliance for which the download is intended; and (iii) a download object containing the software or firmware to be downloaded. The terminal obtains a second type identifier from the HDTV appliance that identifies a type of the HDTV appliance. If the type identifiers correspond, the terminal obtains a second version identifier from the HDTV appliance, which identifies a current version of software or firmware of the HDTV appliance. If the version identifiers do not correspond, the terminal may pass the download object to the HDTV appliance.
Owner:GENERAL INSTR CORP

Method and apparatus for utilizing blank space on a high definition television screen

A method and system for displaying media in the otherwise blank spaces remaining when a standard television signal is viewed on a high definition television screen and vice versa. In one embodiment, two separate media are accessed by a set top box for a high definition television screen. A standard television broadcasting signal is accessed as well as second media signal. The second media signal may consist of for example advertisements, program guide information, an internet browser, other media, etc. The standard television signal is rendered on a main portion of the high definition television screen, while the second media occupies the remaining space.
Owner:SONY CORP +1

Picture rate conversion system for high definition video

Systems and methods for converting a picture frame rate between a source video at a first rate and a target video at a second rate. A system may include a phase plane correlation calculator configured to determine a first motion vector estimate. The system may further include a global motion calculator configured to determine a second motion vector estimate based on the previous frame data, the current frame data, and the first motion vector estimate. The system may also include a motion compensated interpolator for assigning a final motion vector through a quality calculation and an intermediate frame generator for generating the intermediate frame using the final motion vector.
Owner:SYNAPTICS INC +1

Methods and devices for time-varying selection and arrangement of data points with particular application to the creation of NTSC-compatible HDTV signals

Processes for selecting, manipulating and arranging data points or pixels derived from information bearing signals are useful to reduce the bandwidth of, or improve the perceived quality of, such a signal as transmitted and displayed. The techniques utilize time-varying sampling schemes and take into account the characteristics of the human visual system. For each information frame, a subset (3) of all possible data points (1) is selected (2). A further subset of active data points (5) is selected (4) for which data will actually be sampled. The active points (5) are further divided (6) into points for which a value will be transmitted (x-points) (7) and points which will be sampled but for which no separate value will be transmitted (o-points) (8). A mathematical association between the x-points and o-points is made (9) and new values to be transmitted are calculated for the x-points (10). The parameters of the selection and association processes are varied in a non-trivial manner and the, now modified, cycle repeated (11) for subsequent data frames. In particular, the techniques may be used to process a high-definition television signal prior to its storage, or transmission over a low-bandwidth channel.
Owner:DAVID MICHAEL GESHWIND

Enhanced video processing functionality in auxiliary system

According to example configurations herein, a downstream video processor operates in conjunction with an existing consumer-operated tuner system. The downstream video processor system can be an add-on system disposed in a communication link between the consumer-operated tuner system and a remote video playback device such as a hi-definition television. In lieu of processing video data locally in the set-top box, the consumer-operated tuner system can transmit the video data to the downstream video processor for processing. The downstream video processor in the communication link can be configured to provide enhanced video processing services (e.g., better resolution, higher frame rate rates, enhanced signal to noise ratio, enhanced color quality, 3-D graphics, etc.) with respect to video processing services supported by an upstream video decoder in the consumer-operated tuner system.
Owner:A9 COM INC

Optical information processor and semiconductor light emitting device suitable for the same

Provided are highly reliable information processing equipment enabling a high recording density, and a blue color, blue-violet color and violet color based semiconductor light emitting device operable at a low threshold current density, which device is suitable for the information processing equipment. According to the present invention, there can be realized highly reliable optical information processing equipment enabling high recording density, which is capable of sufficiently recording or reproducing a dynamic image in or from a high-definition TV.An n-type impurity is doped in a barrier layer of a quantum-well active layer of a semiconductor light emitting device at a high density. Alternatively, the oriented plane of a quantum-well active layer of a semiconductor light emitting device is inclined from the (0001) plane, whereby the threshold current value of the semiconductor light emitting device can be reduced. The semiconductor light emitting device is represented by a gallium nitride based compound semiconductor laser device.
Owner:USHIO OPTO SEMICON

Method and system for concurrent communicating of high definition television (HDTV) and standard definition television (SDTV) information in a multistandard wireless communication system

Methods and systems for communicating information in a network are disclosed herein and may include receiving, at a mobile terminal, a high definition television (HDTV) signal via a DVB-H downlink communication path. A standard definition television (SDTV) signal may be simultaneously received at the mobile terminal via a cellular downlink communication path. The SDTV signal and the HDTV signal may comprise the same media content. The HDTV signal received via the DVB-H downlink communication path and the SDTV signal received via the cellular downlink communication path may be selected in the mobile terminal for processing. The selection may be based on a preference indicated via the mobile terminal. The selection may also be based on at least one downlink channel condition indicator corresponding to the HDTV signal or the SDTV signal.
Owner:AVAGO TECH WIRELESS IP SINGAPORE PTE

MOS or CMOS sensor with micro-lens array

A MOS or CMOS sensor with a multi-layer photodiode layer covering an array of active pixel circuits. The multi-layer photodiode layer of each pixel is fabricated as continuous layers of charge generating material on top of the MOS and / or CMOS pixel circuits so that extremely small pixels are possible with almost 100 percent packing factors. The sensor includes special features to minimize or eliminate pixel to pixel crosstalk. A micro-lens array with a micro-lens positioned above each pixel directs light illuminating the pixel toward the central portion of the pixel and away from its edges. Also, preferably carbon is added to doped amorphous silicon N or P bottom layer of the multi-layer photodiode layer to increase the electrical resistivity in the bottom layer to further discourage crosstalk. In preferred embodiments each of the pixels define a tiny surface area equal to or larger than about 3.24 square microns and smaller than or equal to about 25 square microns. Detailed descriptions are provided for two general types of sensors. The first type has a pixel count of about 0.3 to 1.9 million pixels and are especially suited for sues such as cell phone cameras. The second type with pixel count of between about 1.9 million pixels to more than 5 million pixels is especially suited for high definition television cameras.
Owner:E PHOCUS

System and method for time division multiplexing of asynchronous video and data signals

A system and method for time division multiplexing multiple lower bandwidth signals into a high bandwidth signals such as a high-definition television signal. The invention provides an integrated transmission, distribution and routing signal format in which low-bandwidth signals are embedded in the active video and vertical blanking areas of a high-bandwidth signal. Data from the source data streams, including timing data, is formatted in packets, each packet comprising a plurality of channels. The packets are inserted into the high-bandwidth signal along with a header word providing a ‘data valid bit’ or ‘status bit’ for each of the channels, which identifies valid data words within the packet. The source data streams are accurately reconstituted by de-multiplexing according to header data specifying routing destination, stream ID, stream type, channel usage and stream clock reference for clock recovery at the receiving end.
Owner:HB CANADA COMM LTD

Method of combining dispersed light sources for projection display

A method and system for combining light emitted by dispersed light sources for use in a projection display or similar system. A plurality of elongated and tapered light integrators are placed side by side forming an array, each having at their small input end a light source, such as an LED. Light collimated by each light integrator is further collimated by a convex lens disposed immediately at the output end of the light integrator. From the convex lenses, the light falls upon an array integrator, preferably a fly-eye type integrator, and passes through it to a second array integrator. Light emerging from the second array integrator is then passed through one or more relay lenses and falls upon a light modulator, such as a digital mircomirror device (DMD). The modulated light beam then passes through a projection lens and onto a visual image display screen. The display screen may, for example, be the screen of a high definition television (HDTV).
Owner:TEXAS INSTR INC

High definition multi-media interface

A receiver for a multi-channel system such as a HDMI system is presented. In accordance with the present invention, the receiver receives one of the plurality of channels and includes an analog portion, a digital-to-analog converter, and a digital control block that provides digital control signals to the analog portion. Equalization can be accomplished partially or wholly in the analog domain and digitally controlled by a digital control loop. A digital equalizer can also be included. A decision feedback equalizer can be implemented that sums an analog output signal into the analog data stream. Timing recovery can be accomplished by digital control of a phase interpolator or delay locked loop that receives a plurality of phases from a timing circuit coupled to receive a clock signal.
Owner:ENTROPIC COMM INC

Method and apparatus for detecting scene changes and adjusting picture coding type in high definition television encoder

Methods and apparatus are provided for detecting scene changes between successive fields in a digital television signal. Adjusts the picture encoding type to optimize the encoding efficiency of the video encoder when a scene change including flashes or bad fields caused by improper editing is detected. Aligning I-frames starting a new GOP with scene changes greatly improves the coding efficiency of the MPEG encoder (100). In a pre-processing stage (205, 210), the change in the sum of pixel differences between successive odd fields or successive even fields is calculated for each successive input field. A scene change is detected when a large positive value is followed by a large negative value in the change in neutral. The decision of which picture type to use is not made until the final encoding stage (225, 235). I-frames can be disabled when the encoder buffer level is too high. A counter (counting down) resets the scene change indication in order to avoid a permanent scene change state for the transition from stationary to motion. For the MPEG film mode frame picture determined as a scene change frame, when the scene change may occur on the field boundary (such as there is no redundant field in the picture), the frame-based discrete cosine transform (DCT) and predictive coding recommended by MPEG will be withdrawn. .
Owner:GENERAL INSTR CORP

Content management program, method and device

An encrypted content and its encryption key under a copy right use condition of prohibiting a copy by the device having received a content are stored, and the encrypted content is copy-transferred with another device through the network, and at the same time, the encryption key is transferred through the network, so that it is stored in either one of the devices. Even when a high definition television broadcast signal received with a copy-once taken as a copy right use condition is recorded, an access flag that controls the presence or absence of the reproduction of the broadcast content for each broadcast content is provided. When an original broadcast content is transcoded into a low resolution, and is transfer to another device, its access flag is turned on, thereby making the reproduction possible.
Owner:FUJITSU CLIENT COMPUTING LTD

System and methods for the simultaneous display of multiple video signals in high definition format

A scaling engine, blending mechanism, memory controller, frame buffer and video driver are included within a semiconductor, such as a Field Programmable Gate Array (FPGA), to provide broadcasting of signals at a high resolution format by combining two or more low resolution video signals to create a high resolution signal in real-time High Definition format, such as 1080p. The high resolution signals can be concurrently displayed as one or more image areas on a display device in any contemplated size, number and arrangement.
Owner:VALENTE GENO +1

Hybrid camera array based light field video imaging system and video processing method

The invention discloses a hybrid camera array based light field video imaging system and video processing method. The system includes a control cloud deck, an image processing unit, a storage unit anda hybrid camera array. The hybrid camera array includes a global camera, a global light field camera and a plurality of local cameras used for collecting a global low resolution reference video, a global light field video and a plurality of local high definition videos of one scene synchronously. The image processing unit performs following treatment on a reference image, a global light field image and a plurality of high definition images of each group taken at the same moment: performing block matching on the local images with the reference image, converting the local images to corresponding blocks of the reference image based on matching results and obtaining a global high definition image; based on the global high definition image, performing super-resolution on the global light fieldimage so as to obtain a global high resolution light field image; combining all frames of global high resolution light field images into a global high resolution light field video.
Owner:BEIJING ZOHETEC CO LTD

Method and apparatus for transcoding a digitally compressed high definition television bitstream to a standard definition television bitstream

A method and apparatus for transcoding macroblocks of a high definition television signal to co-sited macroblocks of a standard definition television signal wherein SD macroblocks are derived directly from co-sited HD macroblocks, i.e. without having to compute the SD macroblock information from its corresponding SD image sequence.
Owner:VIDEO STREAMING SOLUTIONS

Method for realizing new IPTV service terminal

The method comprises: using wired or wireless approach to connect the PC (personal computer) to the HDTV (high definition TV); the PC executes the IPTV-related client-side software and complete the reception and decode of video stream media signals; the HDTV completes the display of video stream media signals. The invention provides a two-way transmission approach between PC and HDTV, which can either transmits the video (VGA) and audio signals from PC to HDTV, or transmits the controller signals (such as USB, microphone, PS / 2 and computer turn on / turn off control signals)from HDTV to PC.
Owner:SICHUAN UNIV

High definition and low power partial functionality communication link

Communication link including a cable containing four pairs of wires, three transmitters to transmit uncompressed video data and audio data over three of the pairs of wires to three receivers, and two transceivers to form a bidirectional multi data type communication link over the fourth pair of wires. An active mode of operation for transmitting the uncompressed video data and the audio data over the three pairs of wires, and for transmitting bidirectional data over the fourth pair of wires. And a first low power partial functionality mode of operation for transmitting bidirectional system controls.
Owner:VALENS SEMICON
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