PARIS Texas Instruments Inc. on Monday (Aug. 23) unveiled a new digital video decoder IC packed with image improvement features for high-end DVD recorders and the TV market.
The new TVP5160 chip translates analog video signals from sources such as NTSC, PAL and Secam into digital video for display on TVs or for storage on DVD disks. It also integrates a host of image improvement features, including 2D and 3D comb filtering, time base correction, noise reduction, intermediate frequency compensation and 480-line progressive video processing.
The single-chip digital video decoder handles concurrent operation of noise reduction functions and takes over tasks usually performed by up to three separate chips in a high-end DVD recorder or TV, according to Ron Richter, worldwide marketing manager for TI's mixed-signal video group.
TI, armed with a family of video decoder ICs, hopes to compete against dominant players like Philips Semiconductors and Micronas. TI has been in the mixed-signal video decoder chip market since 1997.
TI wants to meet the growing demand for improved image quality for high-resolution displays such as DLP, LCD and plasma TVs along with high-end DVD recorders. The new video decoder, supporting all major worldwide broadcasting standards, is capable of receiving a video stream whether it's a composite, S-Video, component or Scart (Syndicat francais des Constructeurs d'Appareils Radio et Television).
Most current video decoders offer 2D comb filter, which is designed to process several lines of video data to capture and improve, for example, a moving image. To further improve video images, system vendors have been adding a separate 3D comb filter, which uses multiple frame buffers to process video over the time domain, for static background images.
The TVP5160 includes a dedicated video processor core and a flexible motion-detection algorithm that can examine video images on a per-pixel basis. The technique is used to determine whether the improved 2D, five-line adaptive comb filter is needed for moving images or if three-frame 3D comb filter should be used for static background images, according to TI.
Richter, who declined reveal specifics of the dedicated video processor used in the TVP5160, said the decoder chip provides enough flexibility by satisfying the preferences of target manufacturers and their display technologies.