Masayuki Kozuka
Masayuki Kozuka, Neyagawa JP
Patent application number | Description | Published |
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20080276101 | DIGITAL DATA RECORDING APPARATUS, DIGITAL DATA RECORDING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM - A data communication unit receives encrypted digital data via a network and records the digital data on a primary recording medium. The digital data, having been encrypted in different encryption methods according to the distributors, include attribute information indicating the encryption methods. The encryption method of the digital data is determined and the encrypted data is decrypted by an appropriate decryption unit. Identification information of a secondary recording medium or a playback apparatus is obtained according to whether the secondary recording medium is removable from the playback apparatus. A controller selects an encryption unit among a plurality of encryption units according to the obtained identification information. The selected encryption unit creates an encryption key according to the identification information and re-encrypts the digital data. A recording unit records the digital data on the secondary recording medium. An accounting unit charges according to accounting information in the attribute information. | 11-06-2008 |
20100313010 | DIGITAL DATA RECORDING APPARATUS, DIGITAL DATA RECORDING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM - A data communication unit receives encrypted digital data via a network and records the digital data on a primary recording medium. The digital data, having been encrypted indifferent encryption methods according to the distributors, include attribute information indicating the encryption methods The encryption method of the digital data is determined and the encrypted data is decrypted by an appropriate decryption unit. Identification information of a secondary recording medium or a playback apparatus is obtained according to whether the secondary recording medium is removable from the playback apparatus. A controller selects an encryption unit among a plurality of encryption units according to the obtained identification information. The selected encryption unit creates an encryption key according to the identification information and re-encrypts the digital data. A recording unit records the digital data on the secondary recording medium. An accounting unit charges according to accounting information in the attribute information. | 12-09-2010 |
Masayuki Kozuka, Arcadia, CA US
Patent application number | Description | Published |
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20080228300 | SEMICONDUCTOR MEMORY CARD, PLAYBACK APPARATUS, RECORDING APPARATUS, PLAYBACK METHOD, RECORDING METHOD AND A COMPUTER-READABLE STORAGE MEDIUM - A semiconductor memory card stores a plurality of audio objects (AOBs) that compose a plurality of tracks and playlist information showing a reproduction order for the tracks. The semiconductor memory card also stores, as resume information (PLMG_RSM_PL), (1) a Playlist_Number showing which playlist information was used the last time playback was performed for the semiconductor memory card, (2) a Track_Number showing the last track to be played back, and (3) a Playback_Time showing a position at which where playback was stopped as a time expressed in relation to the start of the track. | 09-18-2008 |
20080263367 | DIGITAL CONTENT PROTECTION SYSTEM - The media inherent key storing unit | 10-23-2008 |
20080320173 | DIGITAL DATA DISTRIBUTION SYSTEM WITH SWITCHING UNIT, ONLINE ACQUISITION UNIT, AND CONVERSION UNIT FOR CONVERTING FROM FIRST TO SECOND FORMAT - A CD on which only music information specified by the CD-DA is recorded, or a CD on which both music information specified by the CD-DA and music information to be recorded on a CD-ROM are recorded is mounted upon an information processing terminal ( | 12-25-2008 |
20090105859 | PLAYBACK PROGRAM - A plurality of audio object (AOB) files and a plurality of picture object (POB) files are stored. Default Playlist Information and sets of Playlist Information each show an order in which AOBs stored in the plurality of AOB files are to be reproduced. The DPLGI includes DPLI_POB_SRPs that specify at least one POB to be displayed during the playback period of AOBs indicated by the playback order given in the Default Playlist Information. The TKGI includes TKI_POB_SRPs that specify at least one POB to be displayed only during the playback period of a particular AOB out of the AOBs indicated by the playback order given in the Default Playlist Information. | 04-23-2009 |
20100064145 | SEMICONDUCTOR MEMORY CARD, PLAYBACK APPARATUS, RECORDING APPARATUS, PLAYBACK METHOD, RECORDING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM - An audio stream is divided into a plurality of audio object (AOB) files that are recorded having each been encrypted using a different encryption key. At least one piece of track management information (TKI) is provided corresponding to each track. Playlist information (PLI) assigns a playback position in a playback order to each track when a plurality of tracks are to be played back one after the other. | 03-11-2010 |
20100169462 | DIGITAL DATA DISTRIBUTION SYSTEM - A CD on which only music information specified by the CD-DA is recorded, or a CD on which both music information specified by the CD-DA and music information to be recorded on a CD-ROM are recorded is mounted upon an information processing terminal. When the CD on which only music information specified by the CD-DA is recorded is mounted, the information processing terminal acquires, from a directory server, an ISRC number that identifies the music information recorded on the CD, and distribution server location information that identifies a content distribution server. The information processing terminal acquires content that is the music information compressed according to the MP3 and encrypted, from the content distribution server identified by the acquired distribution server location information, and the decryption key. The information processing terminal then decrypts the acquired content using the acquired decryption key and reproduces music. | 07-01-2010 |
20120117663 | SEMICONDUCTOR MEMORY CARD AND DATA READING APPARATUS, AND DATA READING/REPRODCUING APPARATUS - A semiconductor memory card comprising a control IC | 05-10-2012 |
Masayuki Kozuka, Neyagawa-Shi JP
Patent application number | Description | Published |
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20090016701 | RECORDING MEDIUM, PLAYBACK DEVICE, RECORDING METHOD, PLAYBACK METHOD, AND COMPUTER PROGRAM - A recording medium capable of executing menu calls based on the particular characteristics of different versions of the same movie work when these different versions are recorded on a single recording medium. An AV clip and a dynamic scenario are recorded on a BD-ROM | 01-15-2009 |
20090016702 | RECORDING MEDIUM, PLAYBACK DEVICE, RECORDING METHOD, PLAYBACK METHOD, AND COMPUTER PROGRAM - A recording medium capable of executing menu calls based on the particular characteristics of different versions of the same movie work when these different versions are recorded on a single recording medium. An AV clip and a dynamic scenario are recorded on a BD-ROM | 01-15-2009 |
20090103903 | MULTIMEDIA OPTICAL DISC FOR STORING AUDIO DATA AND SUB-PICTURE DATA IN A PLURALITY OF CHANNELS AS WELL AS MOVING PICTURE DATA AND APPARATUS AND METHOD FOR REPRODUCING THE MULTIMEDIA OPTICAL DISC - A multimedia optical disc is provided. The multimedia optical disc includes a data area and a management information area. The data area stores a plurality pieces of video data. The management information area stores a channel table in which a plurality of logical channel numbers are respectively related to a plurality of physical channel numbers for each piece of video data. A piece of moving picture data and a plurality pieces of sub-data are interleaved in each piece of video data. The sub-data is either of audio data and sub-picture data as still pictures. The logical channel numbers are shared by pieces of video data. The physical channel numbers are used to physically identify the plurality pieces of sub-data. With this construction, it is possible to manage sub-data even when the sub-data is dealt with by a plurality pieces of video data. | 04-23-2009 |
Masayuki Kozuka, Osaka-Fu JP
Patent application number | Description | Published |
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20080253738 | MULTIMEDIA OPTICAL DISC STORING BOTH VIDEO TITLES PROVIDED WITH AV FUNCTION AND VIDEO TITLES WITH NO SUCH FUNCTIONS WHICH CAN INSTANTLY DISTINGUISH BETWEEN SUCH KINDS OF TITLES, AND A REPRODUCTION APPARATUS AND REPRODUCTION METHOD FOR SUCH DISC - A multimedia optical disc on which a variety of types of video titles are recorded and which enables a reproduction apparatus to instantly distinguish whether emulated AV functions may be performed for any of the titles. The multimedia optical disc includes a manager area which stores playback type information corresponding to the management information for each video title, with the playback type information including a first flag showing whether the present video title is expressed using one or a plurality of sets of route information and a second flag showing whether a title is expressed using any branch information. | 10-16-2008 |