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

Able to handle inputs from a number of automated imaging and machine vision applications, the PC-COMP is a half-slot 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/sec 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, AOI's (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 Pixel Packing circuitry allows data to be sent in 4:2:2 format so Non Destructive Overlays can be created.

Video Formats

  • Color-NTSC, PAL, S-VHS
  • Monochrome-RS-170, CCIR

Features & Benefits

  • Half-size PCI bus card moves images to the host PC in less than 8 msec, providing an additional 25 msec of free processing time
  • On-board frame buffer (1 MB) and DMA bus master contribute to industry's fastest sustained image transfer times over the PCI bus, eliminating unnecessary processor overhead
  • Supports multiple PC-COMP boards as bus masters on a single PCI bus for multi-camera applications
  • Hardware circuitry automatically de-interlaces images during DMA
  • Supports trigger input for "real world" applications and demanding cycle times
  • DMA of Areas of Interest (AOI's) minimizes transfer times
  • Outputs data as 4:2:2 for Non Destructive Overlays


  • High performance vision products for professional vision application developers
  • Replacement of dedicated vision processors with host based processing
  • Applications that need to re-capture lost cycle time to do more processing
  • High speed image acquisition from SVideo, NTSC/PAL inputs or RS170/CCIR

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Video Input:

  • Color or Monochrome: 4 ea. NTSC, PAL, RS-170, CCIR or 1 S-Video + 3 ea. NTSC, PAL, RS-170, CCIR
  • Digital PLL locks to composite video signals from VCRs

Programmable Resolutions for:

  • 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 40MHz 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-YVideo scaling capability

On Board Digital I/O:

  • 16 bits: 8 bits in; 8 bits out
  • Input latching

Transfer Rates:

  • Less than 8 msec per image (Requires a motherboard with burst mode to host memory)
  • Contact Coreco Imaging for suggested motherboards

External Trigger and Strobe Control:

  • Trigger provides synchronization to external events
  • Flexible strobe control


  • Software interrupts can be generated at the start of the strobe pulse, or at the start of a vertical blank.

Hardware Color Dot Clipping:

  • Image data can be "clipped" during bus master to a Windows display device to eliminate any conflicts with Windows reserved colors

Hardware Display - Windows:

  • Display resolution as per installed VGA device driver
  • A DirectX compatible SVGA adapter is required for real-time display
  • Non Destructive Overlay

Automatic Double Buffered Full Frame Acquisition:

  • Hardware controlled "ping-pong" acquisition into image memory, provides most efficient acquisition and bus-master synchronization possible.

Bus Requirements:

  • 32 bit PCI slot
  • 0.9 Amps @ +5 volts
  • 0.1 Amps @ +12 volts
  • 1/2 slot PCI card

Power Output:

  • 500 ma @ +12 volts per camera (1 Amp total)


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