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MPEG I-frame encoder for 800x600 screen |
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Supports both 4:1:1 and 4:4:4 chroma formats (the latter format is preferred for screens with fine text) |
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Upto 2 frames/sec (for 1Mbps) and upto 20 frames/ sec (for 1Mbps) encoding rates |
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RGB-to-YCC conversion, I-frame MPEG encoding, frame rate control, and keyboard/ touchscreen/ mouse control data multiplexing with MPEG data are implemented on a single TMS320C6201B DSP. Routing of received keyboard/ touchscreen/ mouse data to microcontroller is also implemented by the DSP. |
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Direct (analog) input from PC's VGA connector |
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Keyboard/ touchscreen/ mouse control data multiplex and keyboard/ touchscreen/ mouse data demultiplex are implemented on a MC68HC705P6A microcontroller |
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MPEG I-frame decoder for 800x600 LCD screen |
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Automatic detection of 4:1:1 and 4:4:4 chroma formats |
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Keyboard/ touchscreen/ mouse control data demultiplexing (from received data also containing MPEG data), I-frame MPEG decoding and YCC-to-RGB conversion are implemented on a single TMS320C6201B DSP. Routing of keyboard/ touchscreen/ mouse data from microcontroller is also implemented by the DSP. |
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Video output to standard TFT display's (18-bit parallel 3.3V TTL interface) |
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Keyboard/ touchscreen/ mouse control data demultiplex and keyboard/ touchscreen/ mouse data multiplex are implemented on a MC68HC705P6A microcontroller |
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Choice of RS-485 or fiber-optic link from HIM to DIM. RS-485 supports 1 Mbps in both directions, while the fiber-optic link supports 10 Mbps from HIM to DIM and 1Mbps in the reverse direction |
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