Abstract: A communication method, including: sending a response signal including terminal information to a portable terminal upon receiving an identification information request; accepting periodically a connection request from the portable terminal during a period not shorter than a second period and three-fold period not longer than the second period, for each period not shorter than the third period and not longer than three-fold period of the third period; establishing a wireless link with the portable terminal upon receiving the connection request; and controlling an execution apparatus for executing a predetermined operation after the link connection establishment unit has established the wireless link.

Abstract: The present invention has a cash register 1 and a Bluetooth portable terminal 2 which conduct short-range wireless communication to each other. The cash register 1 decreases transmission power during periods when a search request processing and a connection request processing for the Bluetooth portable terminal 2 are conducted, thereby being connected with only a prescribed Bluetooth portable terminal 2. At the time of providing services, electric power for transmission is increased. Therefore, it is possible to surely connect with the prescribed Bluetooth portable terminal 2. After connected with the prescribed Bluetooth portable terminal, even if the Bluetooth portable terminal 2 moves at comparatively broad range, it is possible to provide the Bluetooth portable terminal 2 with services.

Abstract: A wireless communication device, comprising: a wireless communication unit which communicates with other communication device located at a prescribed range; a first identification information generator which generates first identification information including a service name of available service and inherent information; an encryption unit configured to encrypt said first identification information by using a prescribed encryption key to generate encryption data; a second identification information generator which generates second identification information including the service name, the inherent information and the encryption data; and an inherent information transmitter which transmits the second identification information for an other communication device which has requested transmission of the inherent information.

Abstract: A wireless communication device, comprising: a wireless communication unit which communicates with other communication device located at a prescribed range; a first identification information generator which generates first identification information including a service name of available service and inherent information; an encryption unit configured to encrypt said first identification information by using a prescribed encryption key to generate encryption data; a second identification information generator which generates second identification information including the service name, the inherent information and the encryption data; and an inherent information transmitter which transmits the second identification information for an other communication device which has requested transmission of the inherent information.

Abstract: A communication method, including: sending a response signal including terminal information to a portable terminal upon receiving an identification information request; accepting periodically a connection request from the portable terminal during a period not shorter than a second period and three-fold period not longer than the second period, for each period not shorter than the third period and not longer than three-fold period of the third period; establishing a wireless link with the portable terminal upon receiving the connection request; and controlling an execution apparatus for executing a predetermined operation after the link connection establishment unit has established the wireless link.

Abstract: A service providing apparatus has a first communication unit, a connection information generator, an existence detector, an existence confirmation request receiver, a connection information transmitter, an authentication unit, and a service providing unit. The second communication unit performs wireless communication with the service receiver located in a second wireless area narrower than a first wireless area. The existence confirmation request receiver receives the existence confirmation request signal transmitted by the service receiver through the second communication unit when the service receiver detects to be within a prescribed distance. The service providing unit connects with the service receiver authenticated by the authentication unit, and provides services to the service receiver through the first communication unit.

Abstract: A communication apparatus, including: an identification information request receiver configured to conduct wireless communication a plurality of times without interruption with a portable device; a response transmitter configured to send a response signal including terminal information to the portable terminal when the identification information request receiver has received the identification information request; a connection request receiver configured to periodically accept a connection request from the portable terminal; a link connection establishment unit configured to establish a wireless link with the portable terminal when the connection request receiver has received the connection request; and an execution controller configured to control an execution apparatus for executing a prescribed operation after the link connection establishment unit has established the wireless link.

Abstract: The present invention has a cash register 1 and a Bluetooth portable terminal 2 which conduct short-range wireless communication to each other. The cash register 1 decreases transmission power during periods when a search request processing and a connection request processing for the Bluetooth portable terminal 2 are conducted, thereby being connected with only a prescribed Bluetooth portable terminal 2. At the time of providing services, electric power for transmission is increased. Therefore, it is possible to surely connect with the prescribed Bluetooth portable terminal 2. After connected with the prescribed Bluetooth portable terminal, even if the Bluetooth portable terminal 2 moves at comparatively broad range, it is possible to provide the Bluetooth portable terminal 2 with services.

Abstract: A service providing apparatus has a first communication unit, a connection information generator, an existence detector, an existence confirmation request receiver, a connection information transmitter, an authentication unit, and a service providing unit. The second communication unit performs wireless communication with the service receiver located in a second wireless area narrower than a first wireless area. The existence confirmation request receiver receives the existence confirmation request signal transmitted by the service receiver through the second communication unit when the service receiver detects to be within a prescribed distance. The service providing unit connects with the service receiver authenticated by the authentication unit, and provides services to the service receiver through the first communication unit.

Abstract: The present invention has a cash register 1 and a Bluetooth portable terminal 2 which conduct short-range wireless communication to each other. The cash register 1 decreases transmission power during periods when a search request processing and a connection request processing for the Bluetooth portable terminal 2 are conducted, thereby being connected with only a prescribed Bluetooth portable terminal 2. At the time of providing services, electric power for transmission is increased. Therefore, it is possible to surely connect with the prescribed Bluetooth portable terminal 2. After connected with the prescribed Bluetooth portable terminal, even if the Bluetooth portable terminal 2 moves at comparatively broad range, it is possible to provide the Bluetooth portable terminal 2 with services.

Abstract: In a communication system having a first communication device and a second communication device for carrying out communications by setting up a communication link, the identification code generated at one of the first and second communication devices is presented to the other, and the authentication data are generated by using this identification code at the both of the communication devices, so that the illegal acquisition of the identification code can be prevented and the security performance can be improved.

Abstract: A communication apparatus, comprising a response transmitter, a link connection establishment unit and an execution controller. The response transmitter which sends a response signal including terminal information to said portable terminal when said identification information request receiver has received the identification information request. The connection request receiver which periodically accepts the connection request from said portable terminal during a period not shorter than the second period and three-fold period not longer than the second period, for each period not shorter than the third period and not longer than three-fold period of the third period. The link connection establishment unit configured to establish a wireless link with said portable terminal when said connection request receiver has received the connection request.

Abstract: A service providing apparatus has a first communication unit, a connection information generator, an existence detector, an existence confirmation request receiver, a connection information transmitter, an authentication unit, and a service providing unit. The second communication unit performs wireless communication with the service receiver located in a second wireless area narrower than a first wireless area. The existence confirmation request receiver receives the existence confirmation request signal transmitted by the service receiver through the second communication unit when the service receiver detects to be within a prescribed distance. The service providing unit connects with the service receiver authenticated by the authentication unit, and provides services to the service receiver through the first communication unit.

Abstract: An authentication apparatus, comprising: an existence confirmation signal receiver which in order to receive an existence confirmation signal outputted from a portable information terminal at a first time interval, is set to a reception mode capable of receiving said existence confirmation signal at a second time interval, only during a third time interval equal to or longer than said first time interval; an existence notice signal transmitter which transmits said existence notice signal serving as response of said existence confirmation signal to said portable information terminal when said existence notice signal is received; a link connection unit configured to establish a wireless link with said portable information terminal after said existence notice signal has been received by said portable information terminal; an authentication unit configured to conduct authentication with said portable information terminal through said wireless link; and a control command transmitter which transmits a control comma

Abstract: In a communication system having a first communication device and a second communication device for carrying out communications by setting up a communication link, the identification code generated at one of the first and second communication devices is presented to the other, and the authentication data are generated by using this identification code at the both of the communication devices, so that the illegal acquisition of the identification code can be prevented and the security performance can be improved.

Abstract: The present invention has a cash register 1 and a Bluetooth portable terminal 2 which conduct short-range wireless communication to each other. The cash register 1 decreases transmission power during periods when a search request processing and a connection request processing for the Bluetooth portable terminal 2 are conducted, thereby being connected with only a prescribed Bluetooth portable terminal 2. At the time of providing services, electric power for transmission is increased. Therefore, it is possible to surely connect with the prescribed Bluetooth portable terminal 2. After connected with the prescribed Bluetooth portable terminal, even if the Bluetooth portable terminal 2 moves at comparatively broad range, it is possible to provide the Bluetooth portable terminal 2 with services.

Abstract: A wireless communication device, comprising: a wireless communication unit which communicates with other communication device located at a prescribed range; a first identification information generator which generates first identification information including a service name of available service and inherent information; an encryption unit configured to encrypt said first identification information by using a prescribed encryption key to generate encryption data; a second identification information generator which generates second identification information including the service name, the inherent information and the encryption data; and an inherent information transmitter which transmits the second identification information for an other communication device which has requested transmission of the inherent information.

Abstract: In the present invention, a plurality of the communication control apparatus form a group to communicate each other. In each communication control apparatus, a memory section stores at least one data and its discrimination information. When the discrimination information of data to broadcast is inputted through an input section, a retrieval section retrieves the data corresponding to the discrimination information from the memory section. A sending section broadcasts the retrieved data to other communication control apparatuses of the group. A receiving section receives the data broadcasted by other communication control apparatus of the group.

Abstract: The data processing device 400 of this invention comprises a controller unit 402, a data recorder unit 404, a display unit 406, a data input unit 408 and a communication control unit 410. By transmitting a request for service in a multiple-address way to a plurality of devices on a network and selecting a service providing device, communicability with the service-providing group can be automatically obtained without prior registration of device information in the respective devices or in any specified device. If the service providing device withdraws from the network or a trouble develops in the communication link, a new service providing device is selected from among other communicable devices.

Abstract: Communication control apparatus capable of communicating among plural users when the plural users bring respective equipment into proximity of each other includes a transmission section to transmit terminal discriminating information to discriminate a particular terminal. A receiving section receives terminal discriminating information transmitted by another terminal or terminals. A discrimination section discriminates other terminal(s) capable of communicating with the particular terminal in accordance with the terminal discriminating information received by the receiving section. A group-set section sets one terminal or plural terminals among terminals discriminated by the discrimination means as members of the same group. An information sending section sends the same information to the terminals set by the group-set means.