| 摘要 |
A digital video recorder is described. The digital video recorder may include a plurality of male slots, an image compression substrate connected to a first one of the plurality of male slots, and a function expansion substrate connected to a second one of the plurality of male slots. The image compression substrate may accommodate a plurality of image channels and may support a high-speed data bus dedicated for an image. The function expansion substrate may support a PCI type device. Moreover, the function expansion substrate and the image compression substrate may use separate buses, thereby improving system performance and speed.
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