DATA RECORDING / REPRODUCING DEVICE

    公开(公告)号:MY123020A

    公开(公告)日:2006-05-31

    申请号:MYPI9904360

    申请日:1999-10-08

    Applicant: PANASONIC CORP

    Abstract: IN THIS INVENTION, AS SHOWN IN 1, A STREAM ATTRIBUTE DECISION MEANS (101) FOR DECIDING WHETHER AN AUDIO DATA STREAM SUPPLIED FROM THE OUTSIDE HAS BEEN COMPRESSED OR NOT IS PROVIDED, AND A COMPRESSION ID FLAG FCO HAVING A VALUE ACCORDING TO THE RESULT OF THIS DECISION IS ATTACHED TO THE AUDIO DATA STREAM, AND THE FLAG-ATTACHED AUDIO DATA STREAM IS WRITTEN IN THE STREAM STORAGE UNIT (L00B). THEREBY, AFTER A COMPRESSED AUDIO DATA STREAM FROM THE OUTSIDE IS READ FROM THE STREAM STORAGE UNIT, A WATERMARK CAN BE INSERTED INTO THE COMPRESSED AUDIO DATA STREAM. THEREFORE, THE TIME REQUIRED FOR WRITING THE COMPRESSED AUDIO DATA STREAM INTO THE STREAM STORAGE UNIT IS REDUCED, AND THE SOUND QUALITY OF ANALOG AUDIO DATA OBTAINED BY REPRODUCING THE COMPRESSED AUDIO DATA STREAM IS PREVENTED FROM BEING DEGRADED. 1

    12.
    发明专利
    未知

    公开(公告)号:DE60043036D1

    公开(公告)日:2009-11-12

    申请号:DE60043036

    申请日:2000-05-26

    Applicant: PANASONIC CORP

    Abstract: 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.

    13.
    发明专利
    未知

    公开(公告)号:DE69940365D1

    公开(公告)日:2009-03-19

    申请号:DE69940365

    申请日:1999-10-07

    Applicant: PANASONIC CORP

    Abstract: A recording medium stores a retail content and a superdistribution content that is encrypted according to a block cryptosystem. A superdistribution header is attached to the superdistribution content and encrypted according to a public key cryptosystem. The superdistribution header contains a decryption key used to decrypt the block cryptosystem. The public key cryptosystem is characterized by using a device connected to a communication network for decryption. The decryption is performed when the recording medium is loaded into the device with a fee being charged via the communication network.

    CONTENT PLAYBACK DEVICE
    15.
    发明专利

    公开(公告)号:MY154954A

    公开(公告)日:2015-08-28

    申请号:MYPI20050939

    申请日:2005-03-08

    Applicant: PANASONIC CORP

    Abstract: TO PROVIDE A CONTENT PLAYBACK DEVICE (100) CAPABLE OF PROTECTING CONTENT ACCORDING TO DRM, WHEN DECRYPTING ENCRYPTED CONTENT RECORDED ON A RECORDING MEDIUM (200) AND PLAYING THE DECRYPTED CONTENT. IF KEY GENERATION INFORMATION IS ?00?, A KEY CONTROL UNIT (104) CONCATENATES A DECRYPTED MEDIA KEY AND CONTENT INFORMATION IN THIS ORDER, AND APPLIES A ONE-WAY FUNCTION TO THE CONCATENATION RESULT TO GENERATE A CONTENT KEY. IF THE KEY GENERATION INFORMATION IS ?10?, THE KEY CONTROL UNIT (104) SETS A RIGHTS KEY AS THE CONTENT KEY. IF THE KEY GENERATION INFORMATION IS ?01?, THE KEY CONTROL UNIT (104) CONCATENATES THE DECRYPTED MEDIA KEY AND THE RIGHTS KEY IN THIS ORDER, AND APPLIES A ONE-WAY FUNCTION TO THE CONCATENATION RESULT TO GENERATE THE CONTENT KEY.

    MEDIO DE REGISTRO, DISPOSITIVO DE REPRODUCCION, PROCEDIMIENTO DE REGISTRO, PROGRAMA Y PROCEDIMIENTO DE REPRODUCCION PARA UN FLUJO DE DATOS GRAFICOS ESPECIFICANDO BOTONES INTERACTIVOS.

    公开(公告)号:ES2343065T3

    公开(公告)日:2010-07-22

    申请号:ES04706788

    申请日:2004-01-30

    Applicant: PANASONIC CORP

    Abstract: Un medio de registro (100) incluyendo: una corriente digital en la que se multiplexan una corriente de vídeo y una corriente de gráficos; donde dicha corriente de gráficos incluye datos gráficos (ODS) e información de control de estado (ICS) integrados en ella, siendo utilizados los datos gráficos (ODS) para componer una pantalla interactiva que tiene al menos un botón, y teniendo la información de control de estado (ICS) información (selection_time_out_pts) que describe un tiempo de terminación de período de selección del botón e información (button_info(i)) que define el botón para hacer que la pantalla interactiva cambie a un estado diferente en respuesta a un procedimiento de reproducción de la corriente de vídeo y una operación del usuario en el botón; dicha corriente de gráficos es una cadena de paquetes; la cadena de paquetes incluye al menos un conjunto de paquetes (conjunto de visualización), cada conjunto de paquetes incluye un paquete conteniendo información de control de estado (ICS) y al menos un paquete conteniendo datos gráficos (ODS); y el paquete conteniendo información de control de estado (ICS) lleva unido un sello de fecha que indica un tiempo de visualización de una imagen a visualizar en sincronismo con la pantalla interactiva.

    19.
    发明专利
    未知

    公开(公告)号:DE602004013430T2

    公开(公告)日:2009-06-04

    申请号:DE602004013430

    申请日:2004-02-18

    Applicant: PANASONIC CORP

    Abstract: On a BD-ROM, an AVClip and a plurality of playback section information (PlayItems) are recorded. The AVClip includes a video stream multiplexed with a plurality of elementary streams. The playback section information Playable_PID_entries showing the playback start point and the playback end point in the video stream correlated with the filtering specification of eachelementarystream. The filtering specification specifies whether each of the plurality of elementary streams are able to be played back or not.

    DATA COPYING SYSTEM, DATA COPYING METHOD, DATA READING APPARATUS, DATA WRITING APPARATUS AND DATA RECORDING MEDIUM

    公开(公告)号:MY122214A

    公开(公告)日:2006-03-31

    申请号:MYPI9905779

    申请日:1999-12-28

    Applicant: PANASONIC CORP

    Abstract: THERE IS PROVIDED A COPYING SYSTEM (1) FOR COPYING INFORMATION RECORDED ON A FIRST RECORDING MEDIUM (102) ONTO A SECOND RECORDING MEDIUM (212). THE FIRST RECORDING MEDIUM (102) IS RECORDED WITH COPYING CONTROL INFORMATION (30) FOR REPRESENTING CONDITIONS FOR PERMITTING COPYING OF THE INFORMATION RECORDED ON THE FIRST RECORDING MEDIUM (102), THE COPYING CONTROL INFORMATION (30) BEING MULTIPLEXED WITHIN THE INFORMATION RECORDED ON THE FIRST RECORDING MEDIUM (102). THE COPYING SYSTEM (1) INCLUDES: A READING SECTION (110) FOR READING THE INFORMATION FROM THE FIRST RECORDING MEDIUM (102); A DETECTION SECTION (114) FOR DETECTING THE COPYING CONTROL INFORMATION (30) WITHIN THE INFORMATION READ FROM THE FIRST RECORDING MEDIUM (102); A MODIFICATION SECTION (208) FOR, IF THE COPYING CONTROL INFORMATION (30) REPRESENTS A CONDITION THAT "ONLY COPYING TO A SECOND GENERATION COPY IS PERMITTED", MODIFYING THE COPYING CONTROL INFORMATION (30) SO AS TO PROHIBIT ANY FURTHER COPYING: AND A WRITING SECTION (210) FOR WRITING INFORMATION INCLUDING THE MODIFIED COPYING CONTROL INFORMATION (30), ONTO THE SECOND RECORDING MEDIUM (212).

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