摘要:
A data delivery terminal (12) is connected to a delivery server (18) via a radio base station (14) and a cellular phone network (16). A user can input reservation information of content data (music data) by operating an operation panel on the data delivery terminal (12). For example, the reservation information includes a date and time of download and a title name of music data, connection information (DAP-TEL) to an access point (DAP) for a download server (20) and etc. When such the reservation information is input, the data delivery terminal (12) dials the access point in accordance with the date and time included in the reservation information. When a connection state is established, desired music data is transmitted from the download server (20) such that the music data is downloaded to a memory card attached to the data delivery terminal (12).
摘要:
A cellular phone has distributed encrypted content data and an encrypted content key stored in a memory. The encrypted content key data read out from the memory is decrypted by a decryption processing unit using key data Kp stored in a Kp hold unit, and then applied to a audio reproduction module. A decryption processing unit decrypts encrypted content data read out from the memory using a content key Kc extracted by the decryption processing unit to reproduce content data Dc.
摘要:
A data delivery server (18) includes a download server (24), and a mobile telephone (12) is connected to the download server (24) via an Internet (20), a mobile telephone network (16), and a radio base station (14). The mobile telephone (12) is capable of downloading desired music data from the data delivery server (18). More specifically, a menu server (22) determines one access point where traffic is not congested based on a connection situation to the access point of the download server (24), and transmits to the mobile telephone (12) download information including a content ID which recognizes a determined access point and the desired music data. Therefore, the mobile telephone (12) is capable of downloading the music data by connecting it to the download server (24) from the access point where traffic is not congested based on the download information. Thus, a required time for downloading cannot be longer than necessary.
摘要:
In a cellular phone, a controller stores content data received from a distribution server into a memory. When the content data is to be transmitted to a memory card, a random number key generator generates a license key, and an encryption processing unit encrypts the content data using the license key. The controller transmits encrypted content data to a memory card via a memory card interface. Then, the controller deletes the content data stored in the memory. As a result, distribution of content data that must be deleted when transferring to another apparatus can be facilitated while protecting the copyright.
摘要:
When “0” indicating that intensity of a stereoscopic effect is the lowest is applied as a stereoscopic effect tag, a stereoscopic image is allowed to be displayed as it is. On the other hand, when “1, 2, and 3” are applied as the stereoscopic effect tag, a reduction ratio is determined depending on a value of the stereoscopic effect tag (one-half, one-third, etc.). On the basis of this reduction ratio, the stereoscopic image is displayed and letters of “warning” are displayed. A user selects whether to display the stereoscopic image according to a producer's intention or to maintain the size-reduced stereoscopic image. If an operation requiring for a display of the stereoscopic image as it is intended by the producer is performed, an original stereoscopic image is displayed.
摘要:
A recording area of a hard disk is managed by units. Each unit comprises physically continuous recording regions having predetermined size, and usage status of the unit is stored in an allocation unit (AU) management table. Data requiring a real time processing is stored in each unit. When the usage status of the unit is changed or modified due to the recording or deletion of data, the AU management table is updated and then information indicative of the fact that the AU management table has been updated is recorded. An apparatus where the final change is made is detected at the time the hard disk is inserted or a file system is initialized. And if the apparatus which last made the change adopts the file system which does not use the AU management table, then the table is reconfigured so as to retain the consistency of the AU management table.
摘要:
A memory card 110 extracts a session key Ks from the data applied onto a data bus BS3 by carrying out a decryption process. An encryption processing unit 1406 encrypts a public encryption key KPcard(1) of memory card 110 based on session key Ks, and applies the encrypted key to a server via data bus BS3. A memory 1412 receives from a server data such as license key Kc, license ID data License-ID and user ID data User-ID encrypted with a public encryption key KPcard(1) differing for each memory card for storage, and receives encrypted content data [Dc]Kc encrypted with license key Kc from data bus BS3 for storage.
摘要:
In a polymer electrolyte fuel cell of the present invention, at least one of electrodes comprises conductive carbon carrying a platinum group metal catalyst, conductive carbon carrying no catalyst metal and a hydrogen ion-conductive polymer electrolyte. The preferable amount of the conductive carbon carrying no catalyst metal is equivalent to 5 to 50 wt % of the conductive carbon carrying the catalyst metal. Incorporation of the conductive carbon carrying no catalyst metal to the catalyst layer enables reduction in potential concentration on part of electron conduction channels in an electrode, whereby an electrode for a polymer electrolyte fuel cell having an excellent life characteristic can be provided.
摘要:
A portable telephone set capable of recognizing a call during music replay is disclosed. This portable telephone set comprises talking means and music replay means, and posts a call when receiving the same during music replay by the music replay means. Thus, the call can be recognized during the music replay.
摘要:
A recording device according to the present invention has a function (202, 206, 207) of dividing precoded record data into data blocks of a prescribed length to adjust to a magneto-optical disk (3) and adding an intrinsic pattern before and after the data blocks. As the intrinsic pattern, a pattern which reduces a decoding error of maximum likelihood decoding at an end of each data block is used. Therefore, even when data is inserted after preceding, code correlation of a precoded signal can be maintained at a location where division is performed.