Abstract: A system that allows contents to be viewed suitably and allows channels to be switched promptly in a multi channel IP broadcast via multicast delivery using a broadband network, the system including: a home gateway device connected to a network and capable of receiving a stream, in which a plurality of contents are multiplexed, from the network; and an IP broadcast receiving terminal connected to the home gateway device. The receiving terminal transmits channel information corresponding to a desired content to the home gateway device. The home gateway device extracts, among the multiplexed contents in a received stream, a content corresponding to the channel information from the receiving terminal and supplies the same to the receiving terminal.

Abstract: A labor of disconnecting many cables is omitted even when carrying a file basestation with an external storage loaded together with a main body. An information processing unit comprises: a main body having a CPU, a keyboard and a display unit; a file basestation with an external storage, such as an FD•D or a CD ROM•D, loaded; and a portreplicator with many connectors loaded. Removal of the main body alone from the portreplicator can omit the labor of disconnecting many cables connected to the portreplicator.

Abstract: The Computer System consists of components including more than one Computer and Storage Subsystem to which more than one Computer are connected. The Storage Subsystem is equipped with more than one Storage Unit, Management Table registering information to manage Storage Units accessible by each of the Computers and Controller to control accesses by more than one Computer to more than one Storage Unit. The controller controls the accesses according to the information set in the Management Table when the Storage Unit is accessed by the Computer.

Abstract: The Computer System consists of components including more than one Computer and Storage Subsystem to which more than one Computer are connected. The Storage Subsystem is equipped with more than one Storage Unit, Management Table registering information to manage Storage Units accessible by each of the Computers and Controller to control accesses by more than one Computer to more than one Storage Unit. The controller controls the accesses according to the information set in the Management Table when the Storage Unit is accessed by the Computer.

Abstract: A labor of disconnecting many cables is omitted even when carrying a file basestation with an external storage loaded together with a main body. An information processing unit comprises: a main body having a CPU, a keyboard and a display unit; a file basestation with an external storage, such as an FD•D or a CD ROM•D, loaded; and a portreplicator with many connectors loaded. Removal of the main body alone from the portreplicator can omit the labor of disconnecting many cables connected to the portreplicator.

Abstract: The Computer System consists of components including more than one Computer and Storage Subsystem to which more than one Computer are connected. The Storage Subsystem is equipped with more than one Storage Unit, Management Table registering information to manage Storage Units accessible by each of the Computers and Controller to control accesses by more than one Computer to more than one Storage Unit. The controller controls the accesses according to the information set in the Management Table when the Storage Unit is accessed by the Computer.

Abstract: A group is formed from appliances permitted by a user, to realize safe communication between appliances joining to the group. A group management processing unit 302 generates an encryption key used for cipher communication within the group, and stores the encryption key together with information required for cipher communication into its own storage unit and into a storage medium. An appliance that acquires the information required for cipher communication, by means of the storage medium, uses the information to send information on the appliance itself and the information required for cipher communication to the other appliances. When an appliance is to leave the group, the appliance deletes the information required for cipher communication, which the appliance itself holds, and notifies its leave to the other appliances, so that those appliances delete information on the leave appliance, which is held in those appliances.

Abstract: Even when a content is split due to a failure occurrence in the course of moving the content, the contents having been split are combined and reconstructed.

Abstract: A labor of disconnecting many cables is omitted even when carrying a file basestation with an external storage loaded together with a main body. An information processing unit comprises: a main body having a CPU, a keyboard and a display unit; a file basestation with an external storage, such as an FD•D or a CD ROM•D, loaded; and a portreplicator with many connectors loaded. Removal of the main body alone from the portreplicator can omit the labor of disconnecting many cables connected to the portreplicator.

Abstract: A labor of disconnecting many cables is omitted even when carrying a file basestation with an external storage loaded together with a main body. An information processing unit comprises: a main body having a CPU, a keyboard and a display unit; a file basestation with an external storage, such as an FD·D or a CD ROM·D, loaded; and a portreplicator with many connectors loaded. Removal of the main body alone from the portreplicator can omit the labor of disconnecting many cables connected to the portreplicator.

Abstract: A labor of disconnecting many cables is omitted even when carrying a file basestation with an external storage loaded together with a main body. An information processing unit comprises: a main body having a CPU, a keyboard and a display unit; a file basestation with an external storage, such as an FD•D or a CD-ROM•D, loaded; and a portreplicator with many connectors loaded. Removal of the main body alone from the portreplicator or removal of the main body and the file basestation can omit the labor of disconnecting many cables connected to the portreplicator.

Abstract: The Computer System consists of components including more than one Computer and Storage Subsystem to which more than one Computer are connected. The Storage Subsystem is equipped with more than one Storage Unit, Management Table registering information to manage Storage Units accessible by each of the Computers and Controller to control accesses by more than one Computer to more than one Storage Unit. The controller controls the accesses according to the information set in the Management Table when the Storage Unit is accessed by the Computer.

Abstract: A computer system including plural computers, a management console for installing a program in the computers and a storage subsystem coupled to each computer and management console. The storage subsystem includes a first storage unit shared by the computers and plural second storage units corresponding to the computers. The first storage unit stores a file related to each installed program and an installer program for installing a program. The second storage units each store an install agent and a control file accessed by the install agent. The management console includes an install manager for starting each install agent by switching on power to a corresponding computer. Upon starting, the install agent starts the installer program based on the control file. The installer program reads a related file from the first storage unit, and transfers it to the second storage unit of the corresponding computer, thereby installing the program.

Abstract: A computer system including a plurality of computers, a management console operated by the operator to install a program in the computers and a storage subsystem coupled to the computers and the management console is disclosed. The storage subsystem includes a first storage unit shared by the computers and a plurality of second storage units exclusively used by the computers respectively. The first storage unit has stored therein a file related to the program installed in the computers and an installer program for executing the work of installing a program. The second storage units have each stored therein an install agent executed by each computer and a control file accessed by the install agent. The management console includes an install manager for starting the execution of the install agent on each computer. The install manager starts the process according to the install agent on each computer by switching on the power supply of each computer.

Abstract: In network systems which consist of global network and local network, network device 1 is connected to the global network, and network device 3 is connected to the local network, and network device 2 is connected to both networks. When a network device 1 requests a network device 3 to update a program, a network device 2 which controls the network device 3 temporarily stores the update request and then issues the update request to the network device 3. Upon receiving the update request, the network device 3 shuts down itself and updates the program if the tasks currently running on the network device itself is not important ones. The network device 3, when turned on, also acquires the update request that has been temporarily stored by the network device 2.

Abstract: A labor of disconnecting many cables is omitted even when carrying a file basestation with an external storage loaded together with a main body. An information processing unit comprises: a main body having a CPU, a keyboard and a display unit; a file basestation with an external storage, such as an FD·D or a CD-ROM·D, loaded; and a portreplicator with many connectors loaded. Removal of the main body alone from the portreplicator or removal of the main body and the file basestation can omit the labor of disconnecting many cables connected to the portreplicator.

Abstract: An information processing apparatus is provided which is capable of carrying out the higher memory access. The information processing apparatus includes a memory unit of a synchronous DRAM device which serves to output data synchronously with the supplied clock signal, and a control unit for controlling the access to the memory unit in accordance with an instruction issued from a CPU. The clock signal which is to be supplied to the memory unit is outputted from the control unit. The clock signal which has been outputted from the control unit is supplied to the memory unit and also is pulled back to the control unit. The control unit fetches therein the data, which has been outputted from the storage unit, at the timing which is determined on the basis of the pulled back clock signal. As a result, the control unit reduces the difference between a delay of the data which is outputted from the control unit and a delay of the clock signal which is used to determine the timing at which the data is fetched therein.

Abstract: Each of a plurality of multi-display interfaces respectively associated with a liquid crystal panel is provided with setting circuits for setting a horizontal write start position, a horizontal write width, a vertical write start position, a vertical write width and an enlargement rate, a circuit for storing display data, and an ID setting circuit for setting an ID number for the liquid crystal panel. The multi-display interfaces read display data on the same or different regions to display images in various modes.

Abstract: In a system for easily realizing security in a homenetwork by preventing communication from being made with a terminal illegally connected to the homenetwork, an information appliance and a key management server are connected to a homenetwork via network connector. By inserting an authentication tag into the information appliance, authentication with the key management server is performed and a public encryption key for allowing communication to be made with another information appliance connected to the homenetwork is obtained, thereby enabling safe communication to be made in the homenetwork.

Abstract: An information processor including a keyboard, a main body and a display device. The keyboard is provided with plural infrared-ray emission elements which are located at different positions so as to face in different directions, and an identifying code setting switch for setting the identification code of the keyboard into an infrared-ray signal transmitted from each infrared-ray emission element. The main body includes plural infrared-ray receiving elements which are located at different positions so as to face in different directions, an identifying code setting switch for setting the identification code of the keyboard, and a keyboard controller for judging whether the same identification code as set by the identification code setting switch is contained in the infrared-ray signal which is received by any one of the infrared-ray receiving elements.