Video recording device for recording video signal including character information

摘要

A video recording device for recording a plurality of sets of video information including a plurality of sets of character information is provided. An ADC sequentially receives the plurality of sets of video information at a receive frequency. A character extracting unit extracts the plurality of sets of character information from the plurality of sets of video information. A video recording controlling unit outputs the plurality of sets of video information one at a time at a fixed output frequency without depending on the receive frequency, wherein the video recording controlling unit skips a set of video information or outputs an once-outputted set of video information when there is a discrepancy between the receive frequency and the output frequency. A character information recording controlling unit outputs the plurality of sets of character information one at a time at the output frequency. A recording unit records the outputted plurality of sets of video information and the outputted plurality of sets of video information, into the recording medium. Here, under a predetermined condition, the character information recording controlling unit judges whether a value included in an extracted set of character information is null, abandons the set of character information whose value is judged as being null, and instead outputs the next set of character information.