Techwell Inc.’s TW2834 four-channel video decoder and controller for CCTV security surveillance systems integrates four major blocks into one chip, including four NTSC/PAL video decoders, dual-color display controllers, dual video encoders and an advanced on-screen display. The TW2834 embeds an ITU 656 interface, channel ID encoder and decoder and motion detection circuitry. Built-in anti-aliasing filters and high-quality comb filters reduce cross noise. Techwell Inc.

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