摘要:
A communication network construction method comprises the steps of grouping the communication devices belonging to a communication network into one or a plurality of communication groups. In a selection step, one or a plurality of representative devices are selected in each communication group formed in the grouping step. In a communication step, each communication device communicates directly with the communication devices belonging to the same group, and communicates with the communication devices belonging to a different group by first transmitting data to the representative device of the same communication group and then causing the representative device to transfer a part or the whole of the data to the representative device of the different communication group.
摘要:
A server collects network administration information of terminals connected to the self-segment, assembles the collected network administration information into packets, and transfers the packets to other segments. The server stores the relationship, as a table, between the low-level layer address of each terminal connected to a corresponding segment and the corresponding high-level layer address on the basis of the collected network administration information and the network administration information included in packets transferred from other segments, and performs packet transfer between terminals through the segments by looking up this table.
摘要:
A radio terminal corresponding to a first radio terminal associated with a second radio terminal comprises following units. A first receiving unit receives a first request issued from the second radio terminal. An establishing unit establishes, in response to the first request, a radio link with respect to the second radio terminal. A setting unit sets, on the radio link, a connection with the second radio terminal. A detecting unit detects an event in association with the second radio terminal. A first transmitting unit transmits, to the second radio terminal via the connection, a first request message representing that first service information concerning the second radio terminal should be transmitted to the first radio terminal, when the detecting unit detects the event.
摘要:
A radio terminal corresponding to a first radio terminal associated with a second radio terminal comprises following units. A first receiving unit receives a first request issued from the second radio terminal. An establishing unit establishes, in response to the first request, a radio link with respect to the second radio terminal. A setting unit sets, on the radio link, a connection with the second radio terminal. A detecting unit detects an event in association with the second radio terminal. A first transmitting unit transmits, to the second radio terminal via the connection, a first request message representing that first service information concerning the second radio terminal should be transmitted to the first radio terminal, when the detecting unit detects the event.
摘要:
A radio terminal corresponding to a first radio terminal associated with a second radio terminal comprises following units. A first receiving unit receives a first request issued from the second radio terminal. An establishing unit establishes, in response to the first request, a radio link with respect to the second radio terminal. A setting unit sets, on the radio link, a connection with the second radio terminal. A detecting unit detects an event in association with the second radio terminal. A first transmitting unit transmits, to the second radio terminal via the connection, a first request message representing that first service information concerning the second radio terminal should be transmitted to the first radio terminal, when the detecting unit detects the event.
摘要:
A communication device to be used in an ad hoc network environment for enabling the user to utilize an application easily with a desired partner. After a communicable communication device was discovered, a service information provided by the communication device is acquired to display only the selected communication devices in accordance with the service information. The user selects the communication partner and causes the communication device to execute a predetermined application.
摘要:
A communication device to be used in an ad hoc network environment for enabling the user to utilize an application easily with a desired partner. After a communicable communication device was discovered, a service information provided by the communication device is acquired to display only the selected communication devices in accordance with the service information. The user selects the communication partner and causes the communication device to execute a predetermined application.
摘要:
A communication equipment automatically interchanges business card information and displays such information on a display, thus making operation by a user for interchanging business card information unnecessary. The communication equipment includes a business card memory, a business card information display, a business card information reception function, a business card information transmission function, a communication equipment detection function, a network transmission/reception function, a storage device, a display and a mouse. When the communication equipment function detection function finds communicable equipment, the communication equipment displays a list of the communicable equipment. The user then starts communication with the desired counterpart. The business card information is automatically interchanged allowing direct input of the business card information to the equipment.
摘要:
A three-dimensional (3D) map display system for outputting display information on a 3D map includes: a processor for performing arithmetic processing; and a memory connected to the processor. The memory stores 3D map vector data for each of partitioned areas determined in advance according to coordinates and a real landscape photograph texture image to be attached to the 3D map vector data. The processor determines whether to display each surface constituting a 3D figure included in the 3D map vector data; stores display object management data which includes a result of the determination as to whether to display the surface, in the memory; and refers to the display object management data stored in the memory to determine that only a surface that faces a view line direction is to be displayed, and that a surface that does not face the view line direction is not to be displayed.
摘要:
An integrated data structure is provided which can be maintained and managed by selectively using data storage forms for storing graphic data representing three-dimensional figures, such as houses, roads, underground piping and the like, according to the properties of an object figure and mixing the same. Three control flags respectively specifying three kinds of operations for extension to be carried out for extending two-dimensional graphic data comprising two-dimensional coordinates (x, y) can be selectively used. An extension 1 to specify the component points of a figure by coordinates (x, y, z), an extension 2 to specify a z-coordinate indicating the altitude of a figure for the figure, and an extension 2 to specify a value d and information f indicating the construction of a figure having a predetermined shape and a method of display are used individually or in combination to form a three-dimensional figure. A variety of three-dimensional figures can be formed by using a comparatively small amount of graphic data, requiring a storage apparatus having a comparatively small storage capacity.