Patent ID: 8311103
Filing Date: 2012-11-13
Classification: G11B,H04N

Abstract:
1. A recording apparatus for recording new moving image data on a non-transitory recording medium on which first moving image data of 30 frames per second are already recorded, the first moving image data having a plurality of frames encoded by an intra-frame encoding, forward inter-frame prediction coding, and bidirectional inter-frame prediction coding, each of the plurality of frames of the first moving image data being a top-field-first frame a top field of which is displayed first, the recording apparatus comprising: a receiving unit configured to receive second moving image data obtained by subjecting moving image data of 24 frames per second to 2-3 pull down processing; a discrimination unit configured to discriminate that each of the plurality of frames of the second moving image data received by the receiving unit is the top-field-first frame and that each of the plurality of frames of the second moving image data received by the receiving unit has a redundant field; a coding unit configured to select a coding method from among intra-frame coding, forward inter-frame prediction coding, and bidirectional inter-frame prediction coding in a predetermined order and to encode the second moving image data received by the receiving unit by using the selected coding method; a recording unit configured to record the second moving image data encoded by the coding unit on the non-transitory recording medium on which the first moving image data are already recorded; and a control unit configured to, in accordance with the discrimination result of the discrimination unit, detect a predetermined frame among the plurality of frames of the second moving image data received by the receiving unit as a leading frame in a display order of the second moving image data to be recorded on the non-transitory recording medium and to control the coding unit to start encoding the second moving image data received by the receiving unit in accordance with the predetermined leading frame, wherein, in accordance with the discrimination result of the discrimination unit regarding each of the plurality of frames of the second moving image data, the control unit does not detect frames other than the predetermined frame among the plurality of frames of the second moving image data received by the receiving unit as the leading frame, and wherein the predetermined frame is a frame which is the top-field-first frame and has the redundant field from among the plurality of frames of the second moving image data received by the receiving unit.