Abstract: Information from one or more transmitters installed in a detection object area is received. The reception feature value of when a detection object is present in a predetermined position of the detection object area is measured. A reception pattern of when the detection object is present in the predetermined position is formed. The reception pattern is compared with reference reception patterns, and the presence position corresponding to the reference reception pattern most approximate to the reception pattern is acquired from a reference reception pattern database where the presence positions of the detection object and the reference reception patterns of when the detection object is present in the presence positions are associated with one another. The presence position of the detection object is estimated according to the acquired presence position. The estimated presence position of the detection object is associated with received detection object identification information.

Abstract: The position detection device for detecting a position of a moving body in a predetermined environment, which includes a reception feature quantity generation unit 41 which obtains, from a base station which is disposed in the environment and receives identification information transmitted by radio communication from a mobile station attached to the moving body and a reference station disposed in each area defined in advance in the environment, the identification information and a reception intensity as of the reception of the identification information to generate a reception feature quantity which correlates the reception intensity related to each of the mobile station and the reference station with the base station, a position reception feature quantity generation unit 43 which generates a reception feature quantity of each area from the reception feature quantity related to the reference station taking into consideration a factor of a difference caused between generated reception feature quantities relate

Abstract: Quantities of movements of human and matter within a detection area are detected, based on the read results of an ID holding unit arranged in the detection area or information obtained from a sensor arranged in the detection area. Parameters are decided in accordance with the detected movement quantity, and by using such parameters, whether the detecting object is within the detection area or not is detected, based on the read results of an ID holding unit attached to a detecting object. A stabilizing process is performed based on the detected movement quantities of human and matter within the detection area by employing such constitution. Thus, detection is stabilized without limiting using environment or using method.

Abstract: A position estimating device (4) which estimates the position of an object by comparing a receiving pattern obtained from ID transmitters (2a, 2b, . . . ) and ID receivers (3a, 3b, . . . ) installed in an environment with a prestored receiving pattern. Position of an object equipped with no extra device can be estimated only with the ID transmitters and ID receivers installed in an environment even in an indoor multipath environment by utilizing a fact that a receiving pattern obtained from ID transmitters (2a, 2b, . . . ) and ID receivers (3a, 3b, . . . ) installed in an environment changes depending on the position of the object.

Abstract: The position detection device for detecting a position of a moving body in a predetermined environment, which includes a reception feature quantity generation unit 41 which obtains, from a base station which is disposed in the environment and receives identification information transmitted by radio communication from a mobile station attached to the moving body and a reference station disposed in each area defined in advance in the environment, the identification information and a reception intensity as of the reception of the identification information to generate a reception feature quantity which correlates the reception intensity related to each of the mobile station and the reference station with the base station, a position reception feature quantity generation unit 43 which generates a reception feature quantity of each area from the reception feature quantity related to the reference station taking into consideration a factor of a difference caused between generated reception feature quantities relate

Abstract: A data delivery method for delivering data that are object of delivery, these data containing observation time and observation results of a prescribed object of observation, to a data-using terminal includes steps of: executing a delivery process when a delivery condition has been met; storing delivery history information that indicates the delivery history of the delivery object data; and, based on the delivery history information, generating packaged delivery information, which is information in which a plurality of delivery destinations to which the same delivery object data are simultaneously delivered are placed in correspondence. In the delivery process, based on the packaged delivery information, all types of delivery object data that have been placed in correspondence with the delivery condition that has been met are delivered to the data-using terminals of all delivery destinations that have been placed in correspondence with the delivery condition.

Abstract: In a communications network where first and second communication terminals are interconnected via a common communication medium such as a local area network, the terminals jointly establish an infrared light private communication link if they are brought close to each other. The first and second terminals communicate their network addresses to each other either via the local area network or via the private communication link, and establish a session between the communicated network addresses via the local area network if the strength of the infrared-light private communication link at the receiving end is higher than a decision threshold.

Abstract: It is ensured that advertising information can be distributed and advertising effectiveness can be validated without increasing any burden on the store side. A distribution server 1 gives an advertisement ID and advertisement position information to the advertising information to distribute it to a user portable terminal 3. The user portable terminal 3 automatically judges whether or not a user visits the store on the basis of terminal position information detected by a sensor 32 and the advertisement position information given to the advertising information. When judging that the user has visited the store, the user portable terminal 3 extracts the user ID and the advertisement ID given to the advertising information and transmits them to an effectiveness validation server 2.

Abstract: It is possible to prevent degradation of power consumption efficiency or lowering of a communication rate in a radio communication. Each node 50 determines a transmission power for data communication so that the number of searched nodes reaches a target value and stores the node address of the searched node by the transmission power in an adjacent node address storage unit 25. Moreover, the transmission power for control communication is determined in the same way. When the node 50 transmits a data frame to another node, an ERTS frame including the node address stored in the adjacent node address storage unit 25 is transmitted by the transmission power for the control communication. After an ECTS frame is received, the data frame is transmitted by the transmission power for the data communication. A control information input/output unit 24 identifies the node in an NAV period from the received ERTS frame or the like and stores the node address of the node in an NAV setting node address storage unit 26.

Abstract: A network session is established by a session establishment procedure in accordance with whether or not a difference in priority of session establishment exists among a plurality of terminals for which the network session is to be established. Based on reserved connection information registered in a database, a network administration device for establishing a network session among a plurality of terminals uses a first session establishment procedure that treats all of the terminals in the same manner when there is no difference in the priority of session establishment among the plurality of terminals, and uses a second session establishment procedure that inquires and performs other operations in advance as to whether or not to establish a session with high-priority terminals and treats with priority the terminals of high-priority users when there is a difference in the priority of session establishment.

Abstract: In a sensor network system, sensor data having a high precision (high resolution) is collected, and congestion of a communication network and an apparatus for processing the sensor data is suppressed. A sensor node has a contribution degree calculator for calculating an influence that the detected sensor information exerts upon the entire system precision (resolution). A first communicating circuit transmits sensor information responding to a calculated contribution so that no congestion caused by transmitting too large a quantity of data all at once occurs.

Abstract: Information from one or more transmitters installed in a detection object area is received. The reception feature value of when a detection object is present in a predetermined position of the detection object area is measured. A reception pattern of when the detection object is present in the predetermined position is formed. The reception pattern is compared with reference reception patterns, and the presence position corresponding to the reference reception pattern most approximate to the reception pattern is acquired from a reference reception pattern database where the presence positions of the detection object and the reference reception patterns of when the detection object is present in the presence positions are associated with one another. The presence position of the detection object is estimated according to the acquired presence position. The estimated presence position of the detection object is associated with received detection object identification information.

Abstract: A position estimating device (4) which estimates the position of an object by comparing a receiving pattern obtained from ID transmitters (2a, 2b, . . . ) and ID receivers (3a, 3b, . . . ) installed in an environment with a prestored receiving pattern. Position of an object equipped with no extra device can be estimated only with the ID transmitters and ID receivers installed in an environment even in an indoor multipath environment by utilizing a fact that a receiving pattern obtained from ID transmitters (2a, 2b, . . . ) and ID receivers (3a, 3b, . . . ) installed in an environment changes depending on the position of the object.

Abstract: Quantities of movements of human and matter within a detection area are detected, based on the read results of an ID holding unit arranged in the detection area or information obtained from a sensor arranged in the detection area. Parameters are decided in accordance with the detected movement quantity, and by using such parameters, whether the detecting object is within the detection area or not is detected, based on the read results of an ID holding unit attached to a detecting object. A stabilizing process is performed based on the detected movement quantities of human and matter within the detection area by employing such constitution. Thus, detection is stabilized without limiting using environment or using method.

Abstract: A reader (100-1) transmits an interrogation wave to an RFID tag (200) through an antenna (102-1). A reader (100-2) transmits a power supply wave to the RFID tag (200) through an antenna (102-2). The waves to be transmitted in prescribed timing are switched, and the reader (100-1) transmits the power supply wave to the RFID tag (200) through the antenna (102-1). The reader (100-2) transmits the interrogation wave to the RFID tag (200) through the antenna (102-2).

Abstract: A reader (100) transmits an interrogation wave to a RFID tag (200) through an antenna (102) and receives a response wave from the RFID tag (200). A power supply device (400) generates a power supply wave to be supplied to the RFID tag, based on an instruction from a control means (101), and transmits the power supply wave to the RFID tag (200) while changing the output power of the generated power supply wave. The RFID tag (200) eliminates influences of its position and posture and surely obtains the optimum power supply conditions at least once.

Abstract: A data delivery method for delivering data that are object of delivery, these data containing observation time and observation results of a prescribed object of observation, to a data-using terminal includes steps of: executing a delivery process when a delivery condition has been met; storing delivery history information that indicates the delivery history of the delivery object data; and, based on the delivery history information, generating packaged delivery information, which is information in which a plurality of delivery destinations to which the same delivery object data are simultaneously delivered are placed in correspondence. In the delivery process, based on the packaged delivery information, all types of delivery object data that have been placed in correspondence with the delivery condition that has been met are delivered to the data-using terminals of all delivery destinations that have been placed in correspondence with the delivery condition.

Abstract: In a sensor network system, sensor data having a high precision (high resolution) is collected, and yet congestion of a communication network and an apparatus for processing the sensor data is suppressed. A sensor node 1 has a contribution degree calculating means 123 for calculating an influence that the detected sensor information exerts upon the entire precision (resolution). And, a first communicating means 121 transmits sensor information responding to a calculated contribution so that no congestion caused by transmitting a large quantity of data all at once occurs.

Abstract: A camera system has a rotary mirror type camera assembly including a camera, a mirror for camera arranged in front of the camera, and a mirror rotating mechanism driving the mirror for the camera, a rotary mirror type display apparatus including a monitor displaying an image picked up by the camera, a mirror for monitor arranged in front of the monitor, a finder permitting viewing of the image displayed on the monitor via the mirror for monitor, and a casing rotatable together with the mirror for monitor. The mirror for camera is rotated according to rotation of the casing and the mirror for monitor being fixed to the casing. When the casing is rotated, the mirror for monitor is rotated in display direction of the monitor in front of the monitor.

Abstract: A network session is established by a session establishment procedure in accordance with whether or not a difference in priority of session establishment exists among a plurality of terminals for which the network session is to be established. Based on reserved connection information registered in a database, a network administration device for establishing a network session among a plurality of terminals uses a first session establishment procedure that treats all of the terminals in the same manner when there is no difference in the priority of session establishment among the plurality of terminals, and uses a second session establishment procedure that inquires and performs other operations in advance as to whether or not to establish a session with high-priority terminals and treats with priority the terminals of high-priority users when there is a difference in the priority of session establishment.