TV Video Processor With Parametric Cube-Based Scaling Engine, DSP

SmartASIC, IncTV102 is an integrated TV video processor suitable for digital progressive scan and LCD television sets and projectors. Incorporating parametric cube-based scaling engine and other proprietary digital signal processing (DSP) techniques, the processor is a single-chip processor that improves the viewing quality of TV display. The system conforms to the SDTV (Standard Definition Television) standards of the HDTV standard, also called 480p.

The processor is aimed at two main markets: LCD TVs and projectors; and larger screen conventional picture tube-based TVs.

The device supports two-channel video inputs. One channel input can be programmed with 24 bits RGB or 12/16/24-bit YUV, the other channel supports 16-bit YUV input. The processor allows for seamless interfacing with industry standard video decoders. The system converts analog TV video streams to digital data and performs anti-flickering, image enhancement and output control. To prevent flickering, it employs a proprietary de-interlacing engine with programmable 3D motion detection. It applies motion adaptive de-interlacing with user-programmable thresholds.

The processor includes a built-in color space converter with programmable gamma correction for different color temperatures and contrast and enhances image quality by providing programmable sharpness enhancement and anti-aliasing. A black-level expander enhances contrast. Three filters are incorporated for luminance peaking control. Each of these filters - low pass, band pass and high pass - have independently programmable gain. Dithering is used for 16-bit RGB output.

The parametric cubic-based scaling engine uses high-order interpolation to regenerate missing or needed information.

To reduce overall system cost, an internal on screen display (OSD) has been incorporated. The processor provides bit-mapped OSD support for up to 128 internal fonts for multi-language support. Blinking, inverse, transparency and highlight effects are supported. The window location is programmable.

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