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:
The present invention provides a polymer electrolyte fuel cell having an increased reaction area by forming a gas channel, a proton channel and an electron channel very close to each other inside a catalyst layer. This polymer electrolyte fuel cell includes a hydrogen ion conductive polymer electrolyte membrane; and a pair of electrodes having catalyst layers sandwiching the hydrogen ion conductive polymer electrolyte membrane between them and gas diffusion layers in contact with the catalyst layers, in which the catalyst layer of at least one of the electrodes comprises carbon particles supporting a noble metal catalyst, and the carbon particles include at least two kinds of carbon particles adsorbing a hydrogen ion conductive polymer electrolyte in mutually different dispersed states.
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:
To provide a gas diffusion layer excellent in micro short-circuit resistance and anti-flooding characteristics by optimizing the surface shape of a gas diffusion layer. In a gas diffusion layer for a gas diffusion electrode including at least a catalyst layer containing an electrode catalyst and a gas diffusion layer having electron conductivity and gas diffusibility, a second surface of the gas diffusion layer, which is positioned opposite to a first surface thereof to be in contact with the catalyst layer, is made rougher than the first surface. The first surface has a maximum height Ry1 of 10 to 50 determined by JIS B 0601 surface roughness measurement method, and the second surface has a maximum height Ry2 of 100 to 500 determined by JIS B 0601 surface roughness measurement method.
摘要翻译:通过优化气体扩散层的表面形状,提供微短路电阻和防淹特性优异的气体扩散层。 在至少含有电极催化剂的催化剂层和具有电子传导性和气体扩散性的气体扩散层的气体扩散电极用气体扩散层中,与第一表面相对的气体扩散层的第二表面 与催化剂层接触,比第一表面更粗糙。 第一表面具有由JIS B 0601表面粗糙度测量方法确定的10至50的最大高度Ry <1> 1,并且第二表面的最大高度Ry <2> <100>为100至 500根据JIS B 0601表面粗糙度测定法测定。
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.