The assignee for this patent application is
Reporters obtained the following quote from the background information supplied by the inventors: "The present invention relates to GPS receiving apparatus, a method of controlling GPS receiving unit, and a controlling program, for giving notice of a current position a predetermined course to a user who jogs or runs along the predetermined course.
"In recent, those who incorporate jogging into their daily routine or participate actively in marathons and enjoy running are increasing. Meanwhile, small-size electronic devices are widely known among those runners, which devices are used to record the running course and marked time.
"Some small-size electronic devices are provided with GPS (Global Positioning System) receiver, which can detect a current position with a comparatively high degree of accuracy.
"But general-used GPS receivers consume much energy, and therefore it is not appropriate to incorporate such GPS receiver in small-size devices of a wristwatch type for the runners, which are required to work with less power consumption.
"From the standpoint of less power consumption in GPS apparatuses, an intermittent data-receiving method of receiving positioning data intermittently is proposed, for example, in Japanese Unexamined Patent Publication No. Hei 11-295410. This data-receiving method uses a quiescent-period setting table, which sets previously quiescent periods in receiving operation of an apparatus in accordance with a moving rate and moving distance of a moving body, reducing power consumption by the apparatus and calculating an exact track of the moving body.
"Further, a positioning apparatus is disclosed in Japanese Unexamined Patent Publication No. Hei 10-038993, which apparatus receives positioning data intermittently to detect the current position of a moving body. The faster the moving body moves, the shorter cycles the positioning apparatus receives the positioning data, whereby the current position of the moving body can be detected always at the most suitable distance interval.
"Various conventional techniques have been proposed, for enhancing power-saving by receiving positioning data of the moving body intermittently depending on the moving rate and/or moving distance of the moving body. ALL of the conventional techniques are used to calculate a precise position of the moving body from the positioning data, but are not appropriate for the devices of a wristwatch type to be used by runners, because the devices of a wristwatch type are required to calculate passing positions along a predetermined running course with a high degree of accuracy, using less driving power.
"The present invention has been made to solve disadvantages involve in the conventional techniques and provides GPS receiving apparatus, a method of controlling GPS receiving unit, and a controlling program, for detecting passing positions with a high degree of accuracy and enhancing energy-conservation."
In addition to obtaining background information on this patent application, VerticalNews editors also obtained the inventor's summary information for this patent application: "According to one aspect of the invention, there is provided GPS receiving apparatus, which comprises GPS receiving unit, which detects a position, a course data storing unit, which stores course data representing a course, along which a start position and plural transit positions are set, a motion sensor, which detects motion of a user, a moving-distance obtaining unit, which obtains a moving distance of the user based on the user's motion detected by the motion sensor, a proximity judging unit, which judges based on the moving distance obtained by the moving-distance obtaining unit, whether the user has come close to a next transit position along the course represented by the course data stored in the course data storing unit, GPS start-up controlling unit, which makes GPS receiving unit start up, when the proximity judging unit determines that the user has come close to the next transit position along the course, and GPS stop controlling unit, which brings GPS receiving unit down, when it is determined based on the position detected by GPS receiving unit, that the user has passed through the next transit position along the course.
"As described, the present invention provides the apparatus, which can detect the passing positions with a high degree of accuracy and enhance energy-conservation.
BRIEF DESCRIPTION OF THE DRAWINGS
"FIG. 1 is a front view showing an external configuration of an electronic device of a wristwatch type according to an embodiment of GPS receiving apparatus of the present invention.
"FIG. 2 is a block diagram of a configuration of an electronic circuit of the electronic device of a wristwatch type.
"FIG. 3 is a view showing items of map data (course information) stored in a storage device of the electronic device of a wristwatch type.
"FIG. 4 is a schematic view showing an example of a running course (course information) set in the map data stored in the storage device of the electronic device of a wristwatch type.
"FIG. 5 is a flowchart of a process of supporting a runner according to the first embodiment based on GPS receiving function of the electronic device of a wristwatch type.
"FIG. 6 is a flow chart of a process of supporting the runner according to the second embodiment based on GPS receiving function of the electronic device of a wristwatch type."
For more information, see this patent application: SHINGYOJI, Ryuji. Gps Receiving Apparatus, a Method of Controlling Gps Receiving Unit, and a Controlling Program. Filed
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