DALSA/CORECO PC Comp Product Description:

The PC-COMP image capture card provides fast transfer of standard composite color and monochrome video data to host PC memory. With 1MB of high speed, dual ported, linear mapped video memory running at 60MB/s, you can simultaneously acquire and send image data to the host PC’s memory.

Able to handle inputs from a number of automated imaging and machine vision applications, the PC-COMP is a half-size PCI-bus card that handles video formats of RS- 170/CCIR, NTSC/PAL/S-VHS, and VCR output. Strobe and trigger are supported as well.

The PC-COMP can be configured as either a DMA bus master or slave. In bus master mode, special circuitry automatically de-interlaces the image “on the fly.” This allows data to be DMA’d a frame at a time, sustaining 60MB/s to the PCI-bus, instead of the standard line FIFO method. This greatly reduces the overhead on the CPU for each transfer, freeing up the host when other frame grabbers would be constantly using the CPU. Additionally, AOIs (Areas of Interest) can be transferred out of memory, at full speed,without the need to write any special code. Display is done using the host VGA. On-board circuitry allows data to be sent in 4:2:2 format so Non-Destructive Overlays can be created.

FEATURES

• Half-size PCI-bus card moves images to the host PC in less than 8 ms
• Automatically de-interlaces images during DMA, greatly reducing CPU overhead
• Supports trigger input for demanding machine vision applications
• Supports multiple PC-COMP boards as bus masters on a single PCI-bus for multi-camera applications

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DALSA/CORECO PC Comp Technical Information

• Video Input:
  Color or Monochrome: 4 inputs (NTSC, PAL, RS-170, CCIR) or 1 S-Video + 3 inputs (NTSC, PAL, RS-170, CCIR)
  Digital PLL locks to composite video signals from VCRs
• Programmable Resolutions:
  RS-170, NTSC, S-Video, CCIR and PAL
  Cropping allows AOI of full resolution image
• Resolution - Depth:
  8-bit: RS-170, CCIR
  16-bit YCrCb (4:2:2): NTSC, PAL
  16-bit YCrCb (4:2:2): S-Video
• Capture/Display Rate:
  30 fps: RS-170, NTSC, S-Video
  25 fps: CCIR, PAL, S-Video
• Video Digitizer:
  Dual 40 MHz ADC outputs, 16-bit color
• Video Memory:
  1MB standard
• Video Signal Conditioning:
  Video low pass anti-aliasing filter, Chroma & Luma comb filter
  Programmable hue, brightness, saturation, and contrast
  Up to 16:1 X-Y Video scaling capability
• On-Board Digital I/O:
  16 bits: 8 bits in; 8 bits out
  Input Latching
• Transfer Rates:
  Less than 8 ms per image (Requires a mother board with burst mode to host memory)
• Trigger provides synchronization to external events
• Flexible strobe control
• Interrupts:
  Software interrupts can be generated at the start of the strobe pulse, or at the start of a vertical blank

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