Source: http://www.google.com/patents/US20030008672?dq=7,346,539
Timestamp: 2016-02-06 11:54:03
Document Index: 514995065

Matched Legal Cases: ['art 8', 'art 9', 'art 10', 'art 9', 'art 10', 'art 61', 'art 62', 'art 63', 'art 64']

Patent US20030008672 - Mobile terminal, position search system, position search method, and program ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA mobile terminal 100 includes a position information detection part 8 that detects current position information, a position information decoder part 9 that calculates the current position information as latitude/longitude information, and a position accuracy degradation-producing part 10 that degrades...http://www.google.com/patents/US20030008672?utm_source=gb-gplus-sharePatent US20030008672 - Mobile terminal, position search system, position search method, and program thereforAdvanced Patent SearchPublication numberUS20030008672 A1Publication typeApplicationApplication numberUS 10/188,116Publication dateJan 9, 2003Filing dateJul 3, 2002Priority dateJul 9, 2001Also published asCN1210986C, CN1411316A, US7570960Publication number10188116, 188116, US 2003/0008672 A1, US 2003/008672 A1, US 20030008672 A1, US 20030008672A1, US 2003008672 A1, US 2003008672A1, US-A1-20030008672, US-A1-2003008672, US2003/0008672A1, US2003/008672A1, US20030008672 A1, US20030008672A1, US2003008672 A1, US2003008672A1InventorsTomohiro FujiiOriginal AssigneeTomohiro FujiiExport CitationBiBTeX, EndNote, RefManPatent Citations (19), Referenced by (85), Classifications (25), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetMobile terminal, position search system, position search method, and program therefor
[0076] [0076]FIG. 9 is a flowchart showing the operation of the mobile terminal in the position search system according to the fourth embodiment of the present invention. In the fourth embodiment, description will be made about a case where position information with the highest accuracy is required, for example, where the user of the mobile terminal is involved in crime such as kidnapping. [0077] First, the mobile terminal 100 receives a position search request from the third-person terminal 200 (step S41), and receives a searching password input on the side of the third-person terminal 200 (step S42). [0078] The password used in this embodiment differs in characteristic from the searching passwords shown in the above-mentioned embodiments; it is a password closed to the public for emergency purposes. A manufacturer's serial number or ID key number necessary to get an ID number may be used as the password, and since such a number is usually unknown to any other users, the emergency password is at extremely reduced risk of being stolen. [0079] The CPU 1 determines to which category (Emergency/Normal/Failure) the characteristic of the password received in step S42 belongs (step S43). [0080] In step S43, if the CPU 1 determines that the password is for emergency use (Emergency in step S43), current position information with the highest accuracy will be transmitted to the third-person terminal (step S44). [0081] In step S43, if the CPU 1 determines that the password is a normal password (Normal in step S43), the CPU 1 then determines whether to honor the position search request from the third-person terminal (step S45). If the CPU 1 determines to honor the position search request from the third-person terminal (Yes in step S45), the CPU 1 transmits position information based on the position accuracy set by the user of the mobile terminal 100 (step S46). [0082] In step S43, if the CPU 1 fails in password matching (Failure in step S43), or when the CPU 1 determines not to honor the position search request from the third-person terminal (No in step S45), the CPU 1 notifies the third-person terminal that the position search request therefrom is not permitted (step S47), and ends the processing. [0083] According to the fourth embodiment, even if the user of the mobile terminal is involved in crime or the like in such a state that the user has degraded the accuracy with which the current position would be transmitted in response to a position search request from the third-person terminal, the police or phone company can enter the password for emergency use so that the position information of the mobile terminal 100 will be transmitted with the best accuracy. [0084] The above-mentioned embodiments illustrated such a configuration that the mobile terminal located itself by stand alone positioning using GPS, but the method of locating the mobile terminal is not limited thereto. For example, various other methods can be adopted such as relative positioning, network assisted positioning, position detection based on the radio field intensity of a base station, and position detection based on signal arrival time from a base station. [0085] [0085]FIG. 10 illustrates by an example a case where relative positioning is adopted. In this case, a position correcting terminal 400 is provided for FM-broadcasting correction information on the position information detected by the mobile terminal 100, thereby improving the accuracy of position detection. [0086] [0086]FIG. 11 illustrates by an example a case where network assisted positioning is adopted. In this case, a GPS server 500 can be so provided that the GPS server 500 will perform computations (operations performed by the position information decoder part 9 and the position accuracy degradation-producing part 10) to detect position information instead of the mobile terminal 100 as practiced in the above-mentioned embodiments of the present invention, thereby lightening excessive load on the mobile terminal 100. [0087] [0087]FIG. 12 illustrates by an example a case where position detection based on the radio field intensity of or signal arrival time from a base station is adopted, that is, where a PHS terminal is used. In this case, a mobile terminal 100A is connected to a locating center server 600 through radio base stations 700 a and 700 b, while the third-person terminal 200 is connected to the locating center server 600 through the communication network 300. The locating center server 600 includes a control part 61, a position information detection part 62, a position information decoder part 63, and a position accuracy degradation-producing part 64, which perform processing in the same manner as the mobile terminal 100A. Thus, even when a PHS terminal without GPS capability is used, the locating center server undertakes all the functions, so that the same effects can be obtained. [0088] The above-mentioned embodiments are just preferred embodiments, and various modifications can be carried out without departing from the scope or essential characteristics of the present invention. For example, a function for identifying a fingerprint or pupil may be adopted to use the fingerprint or pupil as a password unique to an individual instead of the passwords using typical alpha-numeral characters according to the present invention. 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H04W8/16, H04W8/08, G01S19/14Cooperative ClassificationH04L69/329, H04L67/04, H04L67/18, H04L63/08, H04L63/083, H04W8/16, H04W4/02, H04W8/08European ClassificationH04L63/08D, H04L63/08, H04L29/08N17, H04L29/08A7, H04L29/08N3, H04W4/02Legal EventsDateCodeEventDescriptionJul 3, 2002ASAssignmentOwner name: NEC CORPORATION, JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FUJI, TOMOHIRO;REEL/FRAME:013084/0523Effective date: 20020626Jan 9, 2013FPAYFee paymentYear of fee payment: 4Sep 11, 2014ASAssignmentOwner name: LENOVO INNOVATIONS LIMITED (HONG KONG), HONG KONGFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NEC CORPORATION;REEL/FRAME:033720/0767Effective date: 20140618RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services