Patent ID: 7558471

Claim:
A video recording apparatus comprising: TV signal decoding means for converting an input TV signal consistent with a TV broadcast protocol into a digital video signal, the input TV signal having a first frame period; video encoding means for encoding, according to a second frame period that is shorter than the first frame period, the digital video signal into a video data stream having a predetermined format; means for recording the video data stream to a recording medium; means for detecting textual data included in a horizontal scan period within a vertical blanking interval of each frame of the TV signal; and controlling means for: encoding the detected textual data for into the video data stream, and inserting a null code as textual data into a horizontal scan period within a vertical blanking interval of a frame in the video data stream when the video encoding means inserts a first duplicate of a frame from the input TV signal into the video data stream, while the video data stream is encoded, as a result of the difference between the first frame period and the second frame period.