| 摘要 |
A video pattern generating device includes a housing, a set of buttons mounted on the housing, a display mounted on the housing, and a circuit board consisting of a keyboard circuit, a control circuit, a display circuit, a video pattern generating circuit, an video pattern encoder circuit, an output port, a power circuit and an image amplifier circuit and mounted in the housing and controllable by the buttons to generate video pattern signals and to encode video pattern signals for outputting to an external video output device for horizontal, vertical and pattern field inspection and correction.
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