Renesas Electronics Corporation

The TW2815 includes four high quality NTSC/PAL video decoders that convert analog composite video signals to digital component YCbCr data for security applications. The TW2815 contains four 10 bit ADCs and proprietary clamp and gain controllers and utilizes 4H comb filters for separating luminance & chrominance to reduce cross noise artifacts. The TW2815 adopts image enhancement techniques such as IF compensation filter, CTI and programmable peaking. The TW2815 also includes an audio CODEC which has four audio Analog-to-Digital converters and one Digitalto- Analog converter. A built-in audio controller can generate digital outputs for recording/mixing and accepts digital input for playback.

The TW2816 includes four high quality NTSC/PAL video decoders that convert analog composite video signals to digital component YCbCr data for security applications. The TW2816 contains four 10 bit ADCs and proprietary clamp and gain controllers and utilizes 4H comb filters for separating luminance & chrominance to reduce cross noise artifacts. The TW2816 adopts image enhancement techniques such as IF compensation filter, CTI and programmable peaking.

The TW2819 is a high performance and cost effective multi-channel H. 264 CODEC solution designed for the security surveillance market. It is capable of receiving and encoding maximum 16 channels standard definition (SD) or 960H (WD1) video. It can also support up to 8-channel high definition (HD) 720p or 4-channel 1080p encode. It supports D1/960H/720p/1080p decode also up to 4 channels. Each video channel can be independently controlled in terms of encode/decode mode, frame rate, bit rate.

The TW2824 has four high quality NTSC/PAL video decoders, dual color display controllers and dual video encoders. The TW2824 contains four 10-bit analog-to-digital converters, proprietary digital gain/clamp controller, high quality Y/C separator to reduce cross-noise and high performance dual scaler to provide various pictures. Four built-in motion and blind detectors can increase the feature of the security system. The TW2824 has a flexible video display controller including QUAD and MUX basic functions. The TW2824 also has an excellent graphic overlay function which displays character/bitmap, box and mouse pointer. The TW2824 contains two video encoders with four 10-bit digital-to-analog converters for providing 2 composite or S-video outputs.

TW2826 is a record multiplexer that converts multiple D1 video inputs into quad CIF format for multi-channel DVR applications. The maximum number of D1 video that can be accepted is 16. The output can be selected from any D1 video or quad CIF video. This product accepts multiple channels BT. 656 compliant video data in byte interleaving format, processes them and outputs them in either its original size or in quad CIF size based on user control. The output will be in BT. 656 byte interleaving format in the case of multi-channel output.

The TW2837 is an improved version of TW2835 with four high quality NTSC/PAL video decoders, dual color display controllers and dual video encoders. The device includes four built-in analog anti-aliasing filters, four 10-bit ADCs, a proprietary digital gain/clamp controller, a high quality Y/C separator to reduce cross noise, and a high performance free scaler. The TW2837 has four built-in motion, blind and night detectors and a flexible video display/record/playback controller supporting basic display and MUX functions. The device also has an enhanced 256-color OSD that can display bitmap, single box, 2D array box, and mouse pointer. The built-in channel ID CODEC allows auto decoding and displaying during playback, and the additional scaler on the playback supports multi-cropping function of the same field or frame image. The TW2837 has two NTSC/PAL video encoders with three 10-bit DACs that can support composite and S-video outputs. The TW2837 also has an improved audio CODEC which has four audio ADCs and one DAC. A built-in audio controller can generate digital outputs for recording/mixing and accept digital input for playback. The TW2837 can be configured up to 8/16 channel video controller using chip-to-chip cascade connection. TW2837 is pin-to-pin compatible to TW2835.

The TW2864 is Techwells 4th generation 4-in-1 video decoder and audio codec for security surveillance applications. The device includes four high quality NTSC/PAL video decoders that convert analog composite video signal to digital component YCbCr data. The TW2864 contains four 10-bit ADCs and proprietary clamp and gain controllers and utilizes adaptive 4H comb filter for separating luminance & chrominance to reduce cross noise artifacts. The TW2864 adopts the image enhancement techniques such as IF compensation filter, CTI and programmable peaking. The TW2864 also includes audio codec which has four audio ADCs and one audio DAC. A built-in audio controller can generate digital outputs for recording/mixing and accepts digital input for playback.

The TW2867 includes four high quality NTSC/PAL/SECAM video decoders that convert analog composite video signal to digital component YCbCr data for security applications. Each channel contains 10-bit ADC and proprietary clamp and gain controllers and utilizes 4H comb filter for separating luminance and chrominance to reduce cross noise artifacts. The TW2867 adopts the image enhancement techniques such as IF compensation filter, CTI and programmable peaking. The TW2867 also includes audio CODEC, which has five audio analog-to-digital converters and one digital-to-analog converter. A built-in audio controller can generate digital outputs for recording/mixing and accepts digital input for playback.