Abstract: When a program from a master device 1 is received during a burst mode, a slave device 2 judges that an address field is also treated as a data field and extracts data in the address field as the program. The slave device 2 uses a transmission FIFO 222 as an extension FIFO of a reception FIFO 224 during the burst mode.

Abstract: A cellular phone, including a GPS signal processing means and a camera, performs navigation by use of a display device, the navigation performed through location information detection means for detecting location information from a picture taken by the camera, and GPS signal processing means based on location information detected by the location information detection means. By determining destination information using GPS on the basis of information taken by the camera, or by acquiring destination information and additional information from a server, setting of destination for subsequent navigation is simplified.

Abstract: A position-finding system is comprised of a terminal having a global positioning system (GPS) for finding a position thereof, and a server which calculates altitude data, based on terrain data in an area in which the terminal is. The terminal includes a controller which selects one of three-dimensional position-finding in which a position is calculated through the use of four or more satellites and two-dimensional position-finding in which a position is calculated in a circumference in which only three satellites can be captured, in accordance with the altitude data provided from the server.

Abstract: A cellular phone, including a GPS signal processing means and a camera, performs navigation by use of a display device, the navigation performed through location information detection means for detecting location information from a picture taken by the camera, and GPS signal processing means based on location information detected by the location information detection means. By determining destination information using GPS on the basis of information taken by the camera, or by acquiring destination information and additional information from a server, setting of destination for subsequent navigation is simplified.

Abstract: There is provided a mobile terminal capable of properly selecting a communication network according to a kind of data targeted for sending and receiving when data is sent and received using a network. A mobile terminal 201 makes access to a WWW server 223 to acquire contents, and uses a packet communication gateway 225 to first acquire HTML data (main data) of the corresponding contents at the time of display. A tag for referring to various files (accompanying data) such as JPEG constructing the contents is embedded in this HTML data. Therefore, the mobile terminal 201 requests sizes of these files to the WWW server 223 by packet communication, and determines whether these files are acquired by packet communication or by line switching from the acquired file size. If these files are acquired by the line switching, the files are acquired from the WWW server 223 by using a line switching gateway 226 and making connection to an Internet network 222 through a public network 228, an Internet provider 229.

Abstract: A position-finding system is comprised of a terminal having a global positioning system (GPS) for finding a position thereof, and a server which calculates altitude data, based on terrain data in an area in which the terminal is. The terminal includes a controller which selects one of three-dimensional position-finding in which a position is calculated through the use of four or more satellites and two-dimensional position-finding in which a position is calculated in a circumference in which only three satellites can be captured, in accordance with the altitude data provided from the server.

Abstract: When a program from a master device 1 is received during a burst mode, a slave device 2 judges that an address field is also treated as a data field and extracts data in the address field as the program. The slave device 2 uses a transmission FIFO 222 as an extension FIFO of a reception FIFO 224 during the burst mode.

Abstract: There is provided a handy terminal including (a) a body, (b) a central processing unit housed in the body, (c) a display screen equipped at a surface of the body, displaying therein data instructed by the central processing unit, (d) a display controller controlling an operation of the display screen in accordance with a display control signal transmitted from the central processing unit, and (e) an inclination detector detecting a direction in which the body is inclined and an inclination angle by which the body is inclined, and transmitting an inclination-indicating signal indicative of the thus detected inclination direction and angle of the body to the central processing unit. The central processing unit transmits a display control signal indicative of the detected inclination direction and angle of the body to the display controller, which scrolls the data displayed in the display screen in accordance with the received display control signal.

Abstract: A radio network communication system includes (a) at least one server storing files therein, (b) at least one client terminal making a request to download a desired file thereto among the files stored in the server, and (c) at least one base station. The base station includes (c1) a data transceiver which makes radio-communication with the client terminal to receive data from and transmit data to the client terminal, and which, when the request is made by the client terminal, transmits the request to the server and receives all data constituting the desired file, from the server, and (c2) a load measurement unit which measures a network load between the client terminal and the base station. The base station divides the received file into sub-files in accordance with the load measured by the load measurement unit, and transmits each of the sub-files to the client terminal.

Abstract: The global position of a mobile terminal is estimated from GPS (global positioning system) signals transmitted from a number of GPS satellites and received by the mobile terminal. The degree of precision of the estimated global position is determined and the size, or scale of an area to be displayed is determined according to the degree of precision, and a map of the area of the determined size is generated according to the global position of the mobile terminal, and displayed on the mobile terminal.

Abstract: A portable radio terminal includes a GPS signal processor for determining the position of the portable radio terminal, and requests a system server to transmit map image data and landmark data in the vicinity of the portable radio terminal. The system server transmits the map image data and landmark data separately to allow the display unit of the portable radio terminal to represent desired landmarks overlapped with the map image on the display unit.

Abstract: The global position of a mobile terminal is estimated from GPS (global positioning system) signals transmitted from a number of GPS satellites and received by the mobile terminal. The degree of precision of the estimated global position is determined and the size, or scale of an area to be displayed is determined according to the degree of precision, and a map of the area of the determined size is generated according to the global position of the mobile terminal, and displayed on the mobile terminal.

Abstract: In order to effectively use a limited memory capacity of a mobile radio unit when storing a markup language document transmitted thereto, a lookup table, which includes a plurality of pairs of tags and shortened codes thereof, is memorized in the mobile radio unit. Thereafter, the mobile radio unit receives a message transmitted thereto. In the case where the incoming message is a markup language document, the mobile radio unit determines if a tag embedded in the markup language document has a corresponding shortened code in the lookup table. If the tag has the corresponding shortened tag in the lookup table, the markup language document is stored in the mobile radio unit while replacing the tag by the corresponding shortened code.

Abstract: There is provided a mobile terminal capable of properly selecting a communication network according to a kind of data targeted for sending and receiving when data is sent and received using a network. A mobile terminal 201 makes access to a WWW server 223 to acquire contents, and uses a packet communication gateway 225 to first acquire HTML data (main data) of the corresponding contents at the time of display. A tag for referring to various files (accompanying data) such as JPEG constructing the contents is embedded in this HTML data. Therefore, the mobile terminal 201 requests sizes of these files to the WWW server 223 by packet communication, and determines whether these files are acquired by packet communication or by line switching from the acquired file size. If these files are acquired by the line switching, the files are acquired from the WWW server 223 by using a line switching gateway 226 and making connection to an Internet network 222 through a public network 228, an Internet provider 229.