# US 9,300,903 B2 · Recording medium, reproduction device, and recording device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,300,903 B2 - Document ID: US9300903B2 - Status: Granted - Kind: B2 - Application number: 14/113,473 - Filed: 2012-04-27 - Published: 2014-02-20 - Granted: 2016-03-29 - Earliest claimed: 2011-04-28 - Assignees: Panasonic Corporation - Applicants: Kazuhiro Mochinaga; Taiji Sasaki; Hiroshi Yahata; Tomoki Ogawa; Tomohiro Matsumoto - Inventors: Kazuhiro Mochinaga; Taiji Sasaki; Hiroshi Yahata; Tomoki Ogawa; Tomohiro Matsumoto - Web page: https://patentgrep.com/patent/US9300903B2 ## CPC - H04N 5/85: on discs or drums - G11B 27/105: {of operating discs} - G11B 27/329: {on a disc [VTOC]} - H04N 5/76: Television signal recording - H04N 9/8205: {involving the multiplexing of an additional signal and the colour video signal} - H04N 13/161: Encoding, multiplexing or demultiplexing different image signal components (for multi-view video sequence encoding H04N19/597) - H04N 13/172: image signals comprising non-image signal components, e.g. headers or format information - H04N 13/189: Recording image signals; Reproducing recorded image signals - H04N 13/207: using a single two-dimensional [2D] image sensor - H04N 13/337: using polarisation multiplexing - H04N 13/341: using temporal multiplexing - H04N 19/46: Embedding additional information in the video signal during the compression process (H04N19/517, H04N19/68, H04N19/70 take precedence) - H04N 19/59: involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution - H04N 19/597: specially adapted for multi-view video sequence encoding - G11B 2020/1062: {Data buffering arrangements, e.g. recording or playback buffers} - G11B 2020/10805: {involving specific measures to prevent a buffer overflow} - G11B 2020/10814: {involving specific measures to prevent a buffer underrun} - G11B 2020/10916: {Seeking data on the record carrier for preparing an access to a specific address} - G11B 2220/2541: Blu-ray discs; Blue laser DVR discs - 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 A recording medium has a main-view stream, a sub-view stream, and an extended stream recorded thereon. The main-view stream contains a main-view video stream constituting main views of stereoscopic video images, and is divided into a plurality of main-view extents arranged on the recording medium. The sub-view stream contains a sub-view video stream constituting sub-views of the stereoscopic video images, and is divided into a plurality of sub-view extents arranged on the recording medium. The extended stream contains extended data to be used in combination with the main-view stream, and is divided into a plurality of extended extents arranged on the recording medium. Between an adjacent pair of the plurality of extended extents, at least two each of the plurality of the main-view extents and the plurality of the sub-view extents are placed in a continuous, interleaved arrangement. ## Claims ### Claim 1 A recording medium comprising a main-view stream, a sub-view stream, and an extended stream recorded thereon, the main-view stream containing a main-view video stream constituting main views of stereoscopic video images, and being divided into a plurality of main-view extents arranged on the recording medium, the sub-view stream containing a sub-view video stream constituting sub-views of the stereoscopic video images, and being divided into a plurality of sub-view extents arranged on the recording medium, the extended stream containing extended data to be used in combination with the main-view stream, and being divided into a plurality of extended extents arranged on the recording medium, wherein at least two each of the plurality of main-view extents and the plurality of sub-view extents are placed in a continuous, interleaved arrangement between an adjacent pair of the plurality of extended extents, and the number of pairs of the plurality of main-view extents and the plurality of sub-view extents that are continuously arranged between the adjacent pair of the plurality of extended extents is determined such that a jump distance between the adjacent pair of the plurality of extended extents does not exceed a predetermined threshold value. ### Claim 2 (depends on 1) The recording medium according to claim 1, wherein a maximum jump time is specified to increase in a staircase pattern with increase of a jump distance, and the threshold value is equal to a value that a jump distance reaches immediately before a maximum jump time increases to a predetermined level. ### Claim 3 (depends on 1) The recording medium according to claim 1, wherein the extended data contains information necessary for converting the main-views to video images with a higher resolution. ### Claim 4 (depends on 3) The recording medium according to claim 3, wherein the information includes a value of the higher resolution, a scheme of interpolation to be used to raise the resolution of the main-views, and difference data between the main-views after the interpolation and the video images with the higher resolution. ### Claim 5 (depends on 1) The recording medium according to claim 1, wherein the extended data contains a depth map for the stereoscopic video images. ### Claim 6 (depends on 1) The recording medium according to claim 1, wherein the main-view stream contains an audio stream, and the extended data contains extended audio data to be used in combination with the audio stream. ### Claim 7 (depends on 1) The recording medium according to claim 1, wherein the extended data contains stream data constituting monoscopic video images to be displayed in a picture-in-picture manner with the main-views. ### Claim 8 (depends on 1) The recording medium according to claim 1, wherein the extended data contains information necessary for increasing the number of bits of pixel data constituting the main-views. ### Claim 9 (depends on 1) The recording medium according to claim 1, wherein the extended data contains information necessary for raising the frame rate of the main-view video stream. ### Claim 10 (depends on 1) The recording medium according to claim 1, wherein the extended data contains information necessary for increasing an angle of view for video images represented by the main-view video stream. ### Claim 11 (depends on 1) The recording medium according to claim 1, wherein the extended data contains a sub-view video stream constituting sub-views that have different attributes from the sub-views constituted by the sub-view video stream contained in the sub-view stream. ### Claim 12 A playback device for playing back a main-view stream, a sub-view stream, and an extended stream from a recording medium, wherein: the main-view stream contains a main-view video stream constituting main views of stereoscopic video images, and is divided into a plurality of main-view extents arranged on the recording medium; the sub-view stream contains a sub-view video stream constituting sub-views of the stereoscopic video images, and is divided into a plurality of sub-view extents arranged on the recording medium; the extended stream contains extended data to be used in combination with the main-view stream, and is divided into a plurality of extended extents arranged on the recording medium; and at least two each of the plurality of main-view extents and the plurality of sub-view extents are placed in a continuous, interleaved arrangement between an adjacent pair of the plurality of extended extents, the playback device comprising: a processor; and a non-transitory computer-readable medium having stored thereon executable instructions that, when executed by the processor, cause said playback device to function as: a read unit configured to read data from the recording medium; a switching unit configured to extract the main-view stream, the sub-view stream, and the extended stream from the data read by the read unit; a first read buffer configured to store the main-view stream extracted by the switching unit; a second read buffer configured to store the sub-view stream extracted by the switching unit; a third read buffer configured to store the extended stream extracted by the switching unit; and a decoding unit configured to read and decode the main-view stream from the first read buffer, the sub-view stream from the second read buffer, and the extended stream from the third read buffer, wherein when the stereoscopic video images are played back, the read unit reads the plurality of main-view extents and the plurality of sub-view extents from the recording medium, and jumps over recording areas of the plurality of extended extents, a capacity allocated to the first read buffer is larger than a data amount of portion of the main-view stream read by the decoding unit from the first read buffer during a period when the read unit jumps over the recording area of one of the plurality of extended extents, and a capacity allocated to the second read buffer is larger than a data amount of portion of the sub-view stream read by the decoding unit from the second read buffer during the period. ### Claim 13 (depends on 12) The playback device according to claim 12, wherein the number of pairs of the plurality of main-view extents and the plurality of sub-view extents that are continuously arranged between the adjacent pair of the plurality of extended extents is determined such that a jump distance between the adjacent pair of the plurality of extended extents does not exceed a predetermined threshold value. ### Claim 14 A recording device for recording a main-view stream, a sub-view stream, and an extended stream on a recording medium, comprising: a processor; and a non-transitory computer-readable medium having stored thereon executable instructions that, when executed by the processor, cause said recording device to function as: an encoding unit configured to encode main views of stereoscopic video images into a main-view video stream, sub-views of the stereoscopic video images into a sub-view video stream, and extended data to be used in combination with the main-view video stream; a multiplexing unit configured to multiplex the main-view video stream into the main-view stream, the sub-view video stream into the sub-view stream, and the extended data into the extended stream, and then determine an arrangement of the main-view, sub-view, and extended streams on the recording medium; and a write unit configured to write the main-view, sub-view, and extended streams onto the recording medium, wherein the multiplexing unit divides the main-view stream into a plurality of main-view extents, the sub-view stream into a plurality of sub-view extents, and the extended stream into a plurality of extended extents, and then arranges the extents, the multiplexing unit places at least two each of the plurality of main-view extents and the plurality of sub-view extents in a continuous, interleaved arrangement between an adjacent pair of the plurality of extended extents, and the number of pairs of the plurality of main-view extents and the plurality of sub-view extents that are continuously arranged between the adjacent pair of the plurality of extended extents is determined such that a jump distance between the adjacent pair of the plurality of extended extents does not exceed a predetermined threshold value.