# US 7,746,384 B2 · Image data recorder, image data recording method, and program > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,746,384 B2 - Document ID: US7746384B2 - Status: Granted - Kind: B2 - Application number: 11/552,213 - Filed: 2006-10-24 - Published: 2007-06-28 - Granted: 2010-06-29 - Earliest claimed: 2005-12-27 - Assignees: Sony Corporation - Inventors: Yuji Saitou; Takeshi Harada; Tatsuhito Tabuchi - Web page: https://patentgrep.com/patent/US7746384B2 ## CPC - H04N 19/40: using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream - G11B 20/10: Digital recording or reproducing - G11B 2220/216: Rewritable discs - G11B 2220/2562: DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R) ## Abstract An image data recorder coding a still image in accordance with a moving image coding system, and recording a still-image-converted moving image acquired by coding onto a recording medium includes: a reading unit reading out an aspect ratio set for the recording medium; a determining unit acquiring an aspect ratio of the still image, and determining whether the acquired aspect ratio is the same as the aspect ratio for the recording medium; a coding unit adding an interpolation area on the top and bottom, or left and right of the still image in accordance with the result of the determination to generate an interpolation-area-added still image whose aspect ratio matches the aspect ratio for the recording medium, and coding the interpolation-area-added still image in accordance with a moving image coding system to generate the still-image-converted moving image; and a recording unit recording the still-image-converted moving image onto the recording medium. ## Claims ### Claim 1 An image data recorder that codes a still image in accordance with a moving image coding system, and records a still-image-converted moving image acquired by coding onto a recording medium, the image data recorder comprising: reading means for reading out an aspect ratio that was set for the recording medium when the recording medium was formatted; determining means for acquiring an aspect ratio of the still image recorded on the recording medium, and determining whether the acquired aspect ratio of the still image is the same as the aspect ratio set for the recording medium that has been read out; coding means for adding, based on the aspect ratio set for the recording medium that has been read out, an interpolation area on the top and bottom, or left and right of the still image in accordance with the result of determination performed by the determining means to generate an interpolation-area-added still image whose aspect ratio matches the aspect ratio set for the recording medium that has been read out, and coding the interpolation-area-added still image in accordance with a moving image coding system to generate the still-image-converted moving image; and recording means for recording the still-image-converted moving image onto the recording medium. ### Claim 2 (depends on 1) The image data recorder according to claim 1, wherein the still image is recorded onto the recording medium. ### Claim 3 (depends on 1) The image data recorder according to claim 1, wherein if it has been determined by the determining means that the acquired aspect ratio of the still image is the same as the aspect ratio set for the recording medium that has been read out, the coding means does not add the interpolation area to the still image, and wherein if it has been determined by the determining means that the acquired aspect ratio of the still image is not the same as the aspect ratio set for the recording medium that has been read out, the coding means generates the interpolation-area-added still image whose aspect ratio matches the aspect ratio set for the recording medium that has been read out by adding the interpolation area on the top and bottom, or left and right of the still image. ### Claim 4 (depends on 1) The image data recorder according to claim 1, further comprising: image capturing means for capturing a moving image and generating image data corresponding to the moving image. ### Claim 5 (depends on 1) The image data recorder according to claim 1, wherein the recording medium is removable. ### Claim 6 (depends on 1) The image data recorder according to claim 1, wherein the recording medium is a DVD+RW (Digital Versatile Disc ReWritable). ### Claim 7 An image data recording method for an image data recorder that codes a still image in accordance with a moving image coding system, and records a still-image-converted moving image acquired by coding onto a recording medium, the image data recording method comprising: reading out an aspect ratio that was set for the recording medium when the recording medium was formatted; acquiring an aspect ratio of the still image recorded on the recording medium, and determining whether the acquired aspect ratio of the still image is the same as the aspect ratio set for the recording medium that has been read out; adding, based on the aspect ratio that was set for the recording medium that has been read out, an interpolation area on the top and bottom, or left and right of the still image in accordance with the result of the determination to generate an interpolation-area-added still image whose aspect ratio matches the aspect ratio set for the recording medium that has been read out, and coding the interpolation-area-added still image in accordance with a moving image coding system to generate the still-image-converted moving image; and recording the still-image-converted moving image onto the recording medium. ### Claim 8 A computer-readable storage medium encoded with computer program instructions that when executed by a processor cause the processor to execute a method for coding a still image in accordance with a moving image coding system, and recording a still-image-converted moving image acquired by coding onto a recording medium, comprising: reading out an aspect ratio that was set for the recording medium when the recording medium was formatted; acquiring an aspect ratio of the still image recorded on the recording medium, and determining whether the acquired aspect ratio of the still image is the same as the aspect ratio set for the recording medium that has been read out; adding, based on the aspect ratio that was set for the recording medium that has been read out, an interpolation area on the top and bottom, or left and right of the still image in accordance with the result of the determination to generate an interpolation-area-added still image whose aspect ratio matches the aspect ratio set for the recording medium that has been read out, and coding the interpolation-area-added still image in accordance with a moving image coding system to generate the still-image-converted moving image; and recording the still-image-converted moving image onto the recording medium. ### Claim 9 An image data recorder that codes a still image in accordance with a moving image coding system, and records a still-image-converted moving image acquired by coding onto a recording medium, the image data recorder comprising: a reading unit configured to read out an aspect ratio that was set for the recording medium when the recording medium was formatted; a determining unit configured to acquire an aspect ratio of the still image recorded on the recording medium, and determine whether the acquired aspect ratio of the still image is the same as the aspect ratio set for the recording medium that has been read out; a coding unit configured to, based on the aspect ratio set for the recording medium that has been read out, add an interpolation area on the top and bottom, or left and right of the still image in accordance with the result of determination performed by the determining unit to generate an interpolation-area-added still image whose aspect ratio matches the aspect ratio set for the recording medium that has been read out, and code the interpolation-area-added still image in accordance with a moving image coding system to generate the still-image-converted moving image; and a recording unit configured to record the still-image-converted moving image onto the recording medium. ### Claim 10 (depends on 1) The image data recorder according to claim 1, wherein a user selects the aspect ratio for the recording medium when the recording medium has not been formatted and the recording medium is formatted according to the aspect ratio selected by the user.