摘要:
PROBLEM TO BE SOLVED: To accurately perform positioning by appropriately determining the validity/invalidity of assist information, such as ResPos, when a terminal travels, and reducing access frequency to a network. SOLUTION: When a GPS terminal 8 is located in a cell 1, positioning is performed by acquiring cell information and position information (ResPos) of the cell 1. Furthermore, since the ResPos acquired by the GPS terminal 8 in the cell 1 includes surrounding cell information about surrounding cells (cells 2 to 7), the surrounding cell information is also stored in the GPS terminal 8 in association with the ResPos acquired in the cell 1. When the GPS terminal 8 moves between a plurality of cells, positioning is performed using the ResPos stored in the cell 1 if the number of handovers is smaller than a predetermined threshold. On the other hand, if the number of handovers exceeds a predetermined threshold, positioning is performed using the ResPos acquired in the destination cell. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a communication system that can easily adjust not only position of an infrared communication unit but also its direction at the time of infrared communication with narrow directivity.SOLUTION: A portable terminal 201 comprises: magnetic detection units 203-1 and 203-2 for detecting magnetic intensity generated by a communication device 101; and a posture detection unit 204 for detecting the posture of the portable terminal 201. The magnetic detection units 203-1 and 203-2 detect magnetic intensity and inform a user so that the distance from the communication device 101 will be in a range where infrared communication is possible. Furthermore, the mobile terminal 201 informs the user which direction the mobile terminal 201 should be oriented toward through a communication unit 206 so that the directions of optical axes of the infrared communication units of the portable terminal 201 and communication device 101 will correspond with each other from posture information of the terminal detected by the posture detection unit 204.
摘要:
PROBLEM TO BE SOLVED: To provide a mobile terminal of which the operation in execution is prevented from being carelessly stopped according to a change in the posture of the mobile terminal. SOLUTION: Before the occurrence of an event, a rest state detection part 301 detects a fixed-time rest state of the mobile terminal 1, and when a state transition history storage part 303 determines the rest state, a posture detection part 302 performs detection operation, and a rest state detection part 301 detects the fixed-time rest state of the mobile terminal 1. When the state transition history storage part 303 determines that the mobile terminal 1 is not in the rest state, the posture detection part 302 does not perform detection operation. Namely, when the terminal is in the rest state before the occurrence of the event, the posture of the terminal is detected, and when the terminal is not in the rest state, the posture of the terminal is not detected. Thus, operation in execution can be prevented from being carelessly stopped according to a change in the posture of the mobile terminal 1. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a base station system supplying effective positioning assist information so as to acquire a correct position in GPS positioning by a mobile terminal connected to a satellite apparatus for a cellular phone dead zone countermeasures. SOLUTION: The base station apparatus and the satellite apparatus include: a position information holding part (104, 601) for preserving the position of the satellite apparatus to which the mobile terminal is connected in the satellite apparatus or the base station apparatus; and a control part (103, 602) for replacing the cell information (ID and information of longitude and latitude) of the base station apparatus included in an assist data request transmitted by the mobile terminal to a position server with the cell information of the satellite apparatus. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To improve user-friendliness by extending a backlight lighting time when there is a high possibility that a user uses a portable telephone while avoiding the problem that the backlight is continuously lighted when the user does not use the portable telephone. SOLUTION: The portable telephone 1 includes: a display portion 11 having the backlight 111; an operating portion 12 for detecting an input; a posture detecting portion 13 for detecting a posture of the portable telephone 1; and a backlight control portion 14 for lighting the backlight 111 when receiving the input from the operating portion 12, and putting out the backlight 111 when there is no input from the operating portion 12 for a predetermined time from when receiving an input from the operating portion 12. The backlight control portion 14 extends a lighting time of the backlight 111 when continuously detecting the same posture from when receiving the input from the operating portion 12 more than when continuously detecting no same posture from when receiving the input from the operating portion 12. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a portable terminal apparatus for maintaining a positioning success rate, and reducing a power consumption. SOLUTION: The portable terminal apparatus includes: a positioning mode determining section 20 for implementing a positioning mode determination based on positioning information when a positioning operation is previously attempted; and a GPS positioning section 10 for implementing the positioning operation based on a positioning mode determination result from the positioning mode determining section. A timeout time of a power control section 12 is determined in each mode by using information including a time after power is turned on, the number of captured satellites, a previous positioned location and a positioning time. A power control of a GPS receiver 11 is accurately implemented. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To detect accurately the direction of movement of a navigation device for a pedestrian held by the pedestrian, while suppressing power consumption. SOLUTION: A coordinate conversion part 103 converts an acceleration vector into a coordinate based on the navigation device 100 for the pedestrian, and a BPF (Band Pass Filter) 105 allows transmission of a walking frequency component of the pedestrian in frequency components of the acceleration vector after coordinate conversion. A moving direction (based on the navigation device for the pedestrian) detection part 106 and a direction-of-movement (based on the navigation device for the pedestrian) detection part 107 detect the moving direction and the direction of movement of the navigation device 100 for the pedestrian on coordinates based on the navigation device 100 for the pedestrian, and a direction-of-movement (based on the earth) calculation part 109 calculates the direction of movement of the navigation device 100 for the pedestrian on coordinates based on the earth. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a method for capturing signals of positioning satellites and a positioning apparatus capable of speedy positioning even in the case that a current position is unknown due to the reason that a wireless communication network is out of range or other reasons. SOLUTION: In the method for capturing of satellite positioning signals, an illuminance measurement part 11 estimates whether it is daytime or nighttime at a current position to detect an approximate position on the Earth on the basis of time information from a real-time clock generating part 1031. A search satellite determination part 13 derives the satellite numbers of a plurality of satellites in the sky over a mobile communication terminal 1 on the basis of the time information, navigation satellite data, and information on the latitude and longitude of the approximate position and provides a reception control part 1034 with the satellite numbers and search information (frequency information and phase information of each satellite) for executing satellite searches. The number of each satellite and a GPS signal reception part 1035 provide frequency and phase control signals for executing satellite searches and their capture. The GPS signal reception part 1035 receives positioning satellite signals from the plurality of satellites through a GPS antenna 104 at a plurality of channels and executes frequency and phase searches of positioning satellite signals. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide an atmospheric pressure altimeter capable of correctly offsetting even when an identical point has plural altitude candidates like a multi-layered road.SOLUTION: The atmospheric pressure altimeter includes: an atmospheric pressure sensor section for detecting atmospheric pressure; an altitude calculation section that calculates the altitude from the atmospheric pressure; a positioning section that detects the position; a map data section storing altitude information; a sensor section that obtains information for detecting traveling means; a traveling means detection section that detects the traveling means from the information by the sensor section; and an altitude offset section that compares the altitude calculated by the altitude calculation section and a proper altitude value according to the traveling means obtained from the map data section, calculates an altitude offset value, and offsets the altitude calculated from the atmospheric pressure.