Abstract: A data collection system includes: an image input means; a code deciphering means; an image analysis means; and a server. The image input means is installed in a mobile terminal and acquires an analysis object image as an analysis object which is an image in a display device. The code deciphering means retrieves a code image portion which is an image of an optically readable code provided correspondingly to the analysis object from the analysis object image and extracts a description of the code from the code image portion. The image analysis means selects an image analysis algorithm based on image classification data included in the description of the code and extracts indication data of the display device by performing image analysis on the analysis object image using the selected image analysis algorithm. The server includes a data storage section which stores the indication data and is capable of communicating with the mobile terminal.

Abstract: A visible light communication apparatus enables an operator to visually recognize a communication state during visual light communication. The apparatus includes a light emitting section which emits visible light and which includes a modulator, a visible light emitter, a light emitting element and an emission control section which includes a controller and which controls an emission state of the visible light from the light emitting section. The apparatus controls the emission state according to the communication state. It is hence possible for the operator to visually perceive the communication state during the visible light communication.

Abstract: There is provided a visible light control apparatus including: a modulation unit (corresponding to a PPM signal generation circuit, a subcarrier generation circuit, and a first AND circuit) that modulates a subcarrier and thereby generates a modulated signal; a visible light control unit (corresponding to a driving circuit) that controls blinking of visible light which contains information based on the modulated signal modulated by the modulation unit and allows the visible light to be emitted at a predetermined emission time ratio; and an emission time ratio control unit (corresponding to a dimming signal generation circuit, an inverting circuit, a second AND circuit, and an OR circuit) that changes the predetermined emission time ratio and allows the visible light to be emitted at the changed emission time ratio.

Abstract: An access point performing a communication with a wireless terminal performing a communication according to a predetermined wireless communication specification acquires a connection parameter required for a communication based on the predetermined wireless communication specification from a connection parameter server which can be connected thereto through a network. The access point sets an access point connection parameter in the access point itself. The wireless terminal acquires a wireless terminal connection parameter by using a communication method not requiring setting from the access point in advance and sets it in the wireless terminal itself. This completes the setting for performing a communication based on the predetermined wireless communication specification and it is possible to start a communication based on the predetermined wireless communication specification between the wireless and access point.

Abstract: A high-speed optical communication system for transmitting and receiving an optical signal is disclosed. A contents receiver transmits previously given unique identification information by using a light less intensive than the intensity level of a pre-given threshold. When a contents transmitter receives the identification information transmitted from the contents receiver, it transmits contents data to the receiver by using a laser.

Abstract: A visible light communication apparatus enables an operator to visually recognize a communication state during visual light communication. The apparatus includes a light emitting section which emits visible light and which includes a modulator, a visible light emitter, a light emitting element and an emission control section which includes a controller and which controls an emission state of the visible light from the light emitting section. The apparatus controls the emission state according to the communication state. It is hence possible for the operator to visually perceive the communication state during the visible light communication.

Abstract: There is provided a visible light control apparatus including: a modulation unit (corresponding to a PPM signal generation circuit, a subcarrier generation circuit, and a first AND circuit) that modulates a subcarrier and thereby generates a modulated signal; a visible light control unit (corresponding to a driving circuit) that controls blinking of visible light which contains information based on the modulated signal modulated by the modulation unit and allows the visible light to be emitted at a predetermined emission time ratio; and an emission time ratio control unit (corresponding to a dimming signal generation circuit, an inverting circuit, a second AND circuit, and an OR circuit) that changes the predetermined emission time ratio and allows the visible light to be emitted at the changed emission time ratio.

Abstract: Private data in an EEPROM (14) is erased in a data erasing procedure when pulling out an SIM card (2) from a mobile telephone (1). Before being erased, the private data is encrypted in an encryption procedure and it is transferred and recorded to an external memory (3). The private data encrypted and recorded to the external memory can be reused when the SIM card is used in another mobile telephone. Furthermore, it is possible to prevent the external memory from being left behind when the SIM card is pulled out by interfacing a lock mechanism of a card mounting section (16) with that of a memory mounting section (17).

Abstract: In a data distribution method of distributing data selected for each of a plurality of user terminals from a distribution center to each user terminal through a communication network, the distribution center is notified of the contents of user operation for the data distributed to the user terminal. The distribution center receives a notification from the user terminal. Data to be subsequently distributed to the user terminal is selected by using the contents of the user operation contained in the notification from the user terminal. The selected data is distributed to the user terminal. A data distribution system, data distribution apparatus, and recording medium are also disclosed.

Abstract: Disclosed is a service identification tag for being used in accessing an information transmission server on the Internet. The tag is formed combining an exclusive graphic pattern that can be recognized by a human, and an identification code that can be read by a reading unit. Also disclosed is a communications system having: a service server provided with an identification code/URL conversion table; an information transmission server provided with an information storage; and a terminal unit that is connected through a radio or wire communication network to the information transmission server, the terminal unit having a function for communicating with a Web server. The terminal unit makes a unique link to the service server, reads the identification code from a service identification tag, sends the identification code to the service server, and receives the URL information of the information transmission server corresponding to the identification code from service server.

Abstract: A portable information terminal is connected through a radio base station and the like to the Internet. Furthermore, a music server, a mail server and a distribution center are connected to the Internet. The distribution center distributes data stored in the music server and mail server. The distribution center includes a distribution server, a distribution data store memory in which data for the distribution is transiently stored and a radio unit which wirelessly distributes data to the portable information terminal. When accesses are concentrated on the music server from the distribution information terminals, the music server transfers a file including music data to the distribution center. The distribution center wirelessly transfers the file to each of the portable information terminals with temporal dispersion.

Abstract: A radio wave from a base station, which is received in a radio unit (TRX) 2 of a terminal, contains an identification signal of the base station. A base station identification signal detecting unit 3 detects the base station, from which the radio wave is received, and the CPU 5 makes a judgment. The input level of the received radio wave and the time can be known from an electric field intensity measuring unit 4 and a clock 7, respectively. The terminal has a table, in which times and places meeting communication conditions are registered. A communication time is predicted from the data quantity to be transmitted, and the time and place of the connection trial start are selected. A link is set up periodically at a time and a place meeting conditions, which are determined with reference to the table, thus permitting automatic exchange of data, if any, to the terminal or link destination.

Abstract: A radio information terminal comprises a radio unit, functioning as a proxy server to a portable computer when it is connected to the portable computer and unable to receive a control radio wave from a base station, and synchronizing information received from the portable computer with information of an original server via the base station when it comes to receive the control radio wave from the base station.

Abstract: Private data in an EEPROM (14) is erased in a data erasing procedure when pulling out an SIM card (2) from a mobile telephone (1). Before being erased, the private data is encrypted in an encryption procedure and it is transferred and recorded to an external memory (3). The private data encrypted and recorded to the external memory can be reused when the SIM card is used in another mobile telephone. Furthermore, it is possible to prevent the external memory from being left behind when the SIM card is pulled out by interfacing a lock mechanism of a card mounting section (16) with that of a memory mounting section (17).

Abstract: A radio wave from a base station, which is received in a radio unit (TRX) 2 of a terminal, contains an identification signal of the base station. A base station identification signal detecting unit 3 detects the base station, from which the radio wave is received, and the CPU 5 makes a judgment. The input level of the received radio wave and the time can be known from an electric field intensity measuring unit 4 and a clock 7, respectively. The terminal has a table, in which times and places meeting communication conditions are registered. A communication time is predicted from the data quantity to be transmitted, and the time and place of the connection trial start are selected. A link is set up periodically at a time and a place meeting conditions, which are determined with reference to the table, thus permitting automatic exchange of data, if any, to the terminal or link destination.

Abstract: In a data distribution method of distributing data selected for each of a plurality of user terminals from a distribution center to each user terminal through a communication network, the distribution center is notified of the contents of user operation for the data distributed to the user terminal. The distribution center receives a notification from the user terminal. Data to be subsequently distributed to the user terminal is selected by using the contents of the user operation contained in the notification from the user terminal. The selected data is distributed to the user terminal. A data distribution system, data distribution apparatus, and recording medium are also disclosed.

Abstract: A portable information terminal 201 is connected through a radio base station and the like to an Internet 204. Furthermore, a music server 205, a mail server 206 and a distribution server 207 is connected to the Internet 204. The distribution server 207 distributes data stored in the music server 205 and mail server 206. The distribution server 207 includes a distribution data store memory 209 in which data for the distribution is transiently stored and a radio unit 210 which wirelessly distributes data to the portable information terminal 201. When accesses are concentrated on the music server 205 from the distribution information terminals 201, the music server 205 transfers a file including music data to the distribution server 207. The distribution server 207 wirelessly transfers the file to each of the portable information terminals 201 with temporal dispersion.

Abstract: When receiving voice mail data from a server 11, a terminal 13 or 14 stores the voice mail data in a memory. Subsequently, the data is read, converted to a voice and outputted. Furthermore, when inputting a voice mail during the output of the voice, the terminal 13 or 14 generates a signal including a voice mail data reading position of the memory at the time of input, data of the inputted voice mail and a self terminal identification number as a mail editing signal to transmit the signal to the server 11. When receiving the mail editing signal, the server 11 inserts or attaches and re-accumulates the voice mail data in the mail editing signal to a position indicated by the mail editing signal of a memory region of a memory 15 allocated to a transmitting-end terminal.

Abstract: In a radio packet communication system between a master station and a plurality of slave stations, a contention mode is switched to a polling mode or vice versa in accordance with the amount of transmission data reserved by the slave stations to the master station.

Abstract: In a radio broadcast system constituted by a base station and a plurality of subsidiary stations located at various portions around the base station, each subsidiary station includes a detection unit for detecting an error in received data, and a unit for transmitting a burst retransmission request signal (NAK signal) upon detecting an error in the received data, and transmits no signals for a predetermined limited time, except the NAK signal for indicating reception of broadcast data containing an error. The base station either detects the NAK signal within the limited time or regards detection of a radio carrier having a predetermined time length as detection of the NAK signal.