Patent application number | Description | Published |
20090066724 | GRAPHICS DISPLAY SYSTEM WITH GRAPHICS WINDOW CONTROL MECHANISM - A graphics integrated circuit chip is used in a set-top box for controlling a television display. The graphics chip processes analog video input, digital video input, a graphics input and an audio input simultaneously. The chip processes graphics images organized as windows. The chip obtains data that describes the windows, sorts the data according to the depth of the window on the display, transfers graphics images from memory, and blends the graphics images using alpha values associated with the graphics images. | 03-12-2009 |
20090295815 | GRAPHICS DISPLAY SYSTEM WITH WINDOW DESCRIPTORS - A graphics integrated circuit chip is used in a set-top box for controlling a television display. The graphics chip processes analog video input, digital video input, a graphics input and an audio input simultaneously. The chip uses window descriptors to describe logical surfaces, or windows, of graphics information to be displayed on the screen. The chip incorporates a unified memory architecture that provides a high level of system performance while conserving memory bandwidth and chip size. Video and graphics scaling capabilities as well as anti-flutter filtering capability are provided. | 12-03-2009 |
20090295834 | GRAPHICS DISPLAY SYSTEM WITH VIDEO SCALER - A video processing device may comprise one or more processors and/or circuits for use in a video processing device, in which the one or more processors and/or circuits may comprise a video scaler, a memory, a scaler engine, a clock selection circuit. The one or more processors and/or circuits are operable to receive a video image and select a video input clock or a display output clock for upscaling the received video image, or select the video input clock or the display output clock for downscaling the received video image based on a determination of whether the video image is to be downscaled or upscaled. The one or more circuits may be operable to downscale the received video image to generate a first scaled video image, and/or upscale the received video image to generate a second scaled video image, based on the selection. | 12-03-2009 |
20100103195 | VIDEO, AUDIO AND GRAPHICS DECODE, COMPOSITE AND DISPLAY SYSTEM - A video, audio and graphics system uses multiple transport processors to receive in-band and out-of-band MPEG Transport streams, to perform PID and section filtering as well as DVB and DES decryption and to de-multiplex them. The system processes the PES into digital audio, MPEG video and message data. The system is capable of decoding multiple MPEG SLICEs concurrently. Graphics windows are blended in parallel, and blended with video using alpha blending. During graphics processing, a single-port SRAM is used equivalently as a dual-port SRAM. The video may include both analog video, e.g., NTSC/PAL/SECAM/S-video, and digital video, e.g., MPEG-2 video in SDTV or HDTV format. The system has a reduced memory mode in which video images are reduced in half in horizontal direction only during decoding. The system is capable of receiving and processing digital audio signals such as MPEG Layer 1 and Layer 2 audio and Dolby AC-3 audio, as well as PCM audio signals. The system includes a memory controller. The system includes a system bridge controller to interface a CPU with devices internal to the system as well as peripheral devices including PCI devices and I/O devices such as RAM, ROM and flash memory devices. The system is capable of displaying video and graphics in both the high definition (HD) mode and the standard definition (SD) mode. The system may output an HDTV video while converting the HDTV video and providing as another output having an SDTV format or another HDTV format. | 04-29-2010 |
20100171761 | GRAPHICS DISPLAY SYSTEM WITH ANTI-FLUTTER FILTERING AND VERTICAL SCALING FEATURE - A graphics integrated circuit chip is used in a set-top box for controlling a television display. The graphics chip processes analog video input, digital video input, and graphics input. The chip includes a single polyphase filter that preferably provides both anti-flutter filtering and scaling of graphics. Anti-flutter filtering may help reduce display flicker due to the interlaced nature of television displays. The scaling of graphics may be used to convert the normally square pixel aspect ratio of graphics to the normally rectangular pixel aspect ratio of video. | 07-08-2010 |
20100171762 | GRAPHICS DISPLAY SYSTEM WITH ANTI-FLUTTER FILTERING AND VERTICAL SCALING FEATURE - A graphics integrated circuit chip is used in a set-top box for controlling a television display. The graphics chip processes analog video input, digital video input, and graphics input. The chip includes a single polyphase filter that preferably provides both anti-flutter filtering and scaling of graphics. Anti-flutter filtering may help reduce display flicker due to the interlaced nature of television displays. The scaling of graphics may be used to convert the normally square pixel aspect ratio of graphics to the normally rectangular pixel aspect ratio of video. | 07-08-2010 |
20110280307 | Video and Graphics System with Video Scaling - A video and graphics system has a reduced memory mode in which video images are reduced in half in horizontal direction during decoding. The video and graphics system includes a video decoder for decoding MPEG-2 video data. The video images may not be downscaled in the horizontal direction when no bi-directionally predicted pictures are used. The video and graphics system may output an HDTV video while converting the HDTV video and providing as another output having an SDTV format or another HDTV format. The output having an SDTV format may be recorded using a video cassette recorder (VCR) while the HDTV video is being displayed. | 11-17-2011 |
20110292074 | Graphics Display System With Anti-Flutter Filtering And Vertical Scaling Feature - A graphics integrated circuit chip is used in a set-top box for controlling a television display. The graphics chip processes analog video input, digital video input, and graphics input. The chip includes a single polyphase filter that preferably provides both anti-flutter filtering and scaling of graphics. Anti-flutter filtering may help reduce display flicker due to the interlaced nature of television displays. The scaling of graphics may be used to convert the normally square pixel aspect ratio of graphics to the normally rectangular pixel aspect ratio of video. | 12-01-2011 |
20110292082 | Graphics Display System With Anti-Flutter Filtering And Vertical Scaling Feature - A graphics integrated circuit chip is used in a set-top box for controlling a television display. The graphics chip processes analog video input, digital video input, and graphics input. The chip includes a single polyphase filter that preferably provides both anti-flutter filtering and scaling of graphics. Anti-flutter filtering may help reduce display flicker due to the interlaced nature of television displays. The scaling of graphics may be used to convert the normally square pixel aspect ratio of graphics to the normally rectangular pixel aspect ratio of video. | 12-01-2011 |
20120093215 | GRAPHICS DISPLAY SYSTEM WITH VIDEO SCALER - A method for processing video data includes performing by one or more processors and/or circuits in a video processing device, the one or more processors and/or circuits including a video scaler, a memory, and a scaler engine, functions including receiving a video image by the video processing device. The functions also include determining whether the video scaler requires less memory bandwidth to scale the video image before writing the video image to the memory or after reading the video image from the memory, and scaling the video image based on the determination. If the video scaler requires less memory bandwidth to scale the video image before writing the video image to the memory, performing by the one or more processors and/or circuits scaling of the video image in the video scaler using a video input clock of the video scaler to generate a first scaled video image. | 04-19-2012 |
20120268655 | Graphics Display System with Anti-Flutter Filtering and Vertical Scaling Feature - A graphics integrated circuit chip is used in a set-top box for controlling a television display. The graphics chip processes analog video input, digital video input, and graphics input. The chip includes a single polyphase filter that preferably provides both anti-flutter filtering and scaling of graphics. Anti-flutter filtering may help reduce display flicker due to the interlaced nature of television displays. The scaling of graphics may be used to convert the normally square pixel aspect ratio of graphics to the normally rectangular pixel aspect ratio of video. | 10-25-2012 |