Security system for vehicle navigation system and method of detecting identification code
A vehicle navigation system with a security feature capable of detecting that the system has been removed from the vehicle, which uses only one memory for storing an anti-theft code. The navigation system is provided with a GPS receiver containing a clock outputting a time synchronized with present...
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| creator | ENDO FUMIHITO |
| description | A vehicle navigation system with a security feature capable of detecting that the system has been removed from the vehicle, which uses only one memory for storing an anti-theft code. The navigation system is provided with a GPS receiver containing a clock outputting a time synchronized with present GPS time information, while receiving electric power from the vehicle battery, and returns the time to an initial preset time when not receiving power from the battery, and detects a present position of the vehicle by means of the present GPS time and position information. A CPU detects whether or not the time of the clock has returned to the initial time, an SRAM stores a preset identification code, and a controller requests input of an identification code when the CPU detects that the time of the clock has returned to the initial time, and compares the input identification code to the identification code stored in the SRAM, and operates in accordance with the result of the comparison. |
| format | Patent |
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The navigation system is provided with a GPS receiver containing a clock outputting a time synchronized with present GPS time information, while receiving electric power from the vehicle battery, and returns the time to an initial preset time when not receiving power from the battery, and detects a present position of the vehicle by means of the present GPS time and position information. A CPU detects whether or not the time of the clock has returned to the initial time, an SRAM stores a preset identification code, and a controller requests input of an identification code when the CPU detects that the time of the clock has returned to the initial time, and compares the input identification code to the identification code stored in the SRAM, and operates in accordance with the result of the comparison.</description><edition>7</edition><language>eng</language><subject>ADVERTISING ; ALARM SYSTEMS ; ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE ; CRYPTOGRAPHY ; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ; DIAGRAMS ; DISPLAY ; EDUCATION ; EDUCATIONAL OR DEMONSTRATION APPLIANCES ; GLOBES ; GYROSCOPIC INSTRUMENTS ; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES ; MEASURING ; MEASURING DISTANCES, LEVELS OR BEARINGS ; NAVIGATION ; ORDER TELEGRAPHS ; PHOTOGRAMMETRY OR VIDEOGRAMMETRY ; PHYSICS ; PLANETARIA ; RADIO DIRECTION-FINDING ; RADIO NAVIGATION ; SEALS ; SIGNALLING ; SIGNALLING OR CALLING SYSTEMS ; SURVEYING ; TESTING ; TRAFFIC CONTROL SYSTEMS</subject><creationdate>2000</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20000822&DB=EPODOC&CC=US&NR=6107933A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20000822&DB=EPODOC&CC=US&NR=6107933A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ENDO; FUMIHITO</creatorcontrib><title>Security system for vehicle navigation system and method of detecting identification code</title><description>A vehicle navigation system with a security feature capable of detecting that the system has been removed from the vehicle, which uses only one memory for storing an anti-theft code. The navigation system is provided with a GPS receiver containing a clock outputting a time synchronized with present GPS time information, while receiving electric power from the vehicle battery, and returns the time to an initial preset time when not receiving power from the battery, and detects a present position of the vehicle by means of the present GPS time and position information. A CPU detects whether or not the time of the clock has returned to the initial time, an SRAM stores a preset identification code, and a controller requests input of an identification code when the CPU detects that the time of the clock has returned to the initial time, and compares the input identification code to the identification code stored in the SRAM, and operates in accordance with the result of the comparison.</description><subject>ADVERTISING</subject><subject>ALARM SYSTEMS</subject><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</subject><subject>APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE</subject><subject>CRYPTOGRAPHY</subject><subject>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</subject><subject>DIAGRAMS</subject><subject>DISPLAY</subject><subject>EDUCATION</subject><subject>EDUCATIONAL OR DEMONSTRATION APPLIANCES</subject><subject>GLOBES</subject><subject>GYROSCOPIC INSTRUMENTS</subject><subject>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</subject><subject>MEASURING</subject><subject>MEASURING DISTANCES, LEVELS OR BEARINGS</subject><subject>NAVIGATION</subject><subject>ORDER TELEGRAPHS</subject><subject>PHOTOGRAMMETRY OR VIDEOGRAMMETRY</subject><subject>PHYSICS</subject><subject>PLANETARIA</subject><subject>RADIO DIRECTION-FINDING</subject><subject>RADIO NAVIGATION</subject><subject>SEALS</subject><subject>SIGNALLING</subject><subject>SIGNALLING OR CALLING SYSTEMS</subject><subject>SURVEYING</subject><subject>TESTING</subject><subject>TRAFFIC CONTROL SYSTEMS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2000</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqFyjEKwkAQRuE0FqKewbmAoCwoliKKfbSwCsvsv8lAMhuyYyC3t1Brq1e8b148S_BrEJsoT9nQUUwDjWiEW5D6UWpvkvR3vQbqYE0KlCIFGNhEa5IANYnCH80pYFnMom8zVt8uivX1cj_fNuhThdx7hsKqR7nfbQ9H507uv3gDVvc6og</recordid><startdate>20000822</startdate><enddate>20000822</enddate><creator>ENDO; FUMIHITO</creator><scope>EVB</scope></search><sort><creationdate>20000822</creationdate><title>Security system for vehicle navigation system and method of detecting identification code</title><author>ENDO; FUMIHITO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US6107933A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2000</creationdate><topic>ADVERTISING</topic><topic>ALARM SYSTEMS</topic><topic>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</topic><topic>APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE</topic><topic>CRYPTOGRAPHY</topic><topic>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</topic><topic>DIAGRAMS</topic><topic>DISPLAY</topic><topic>EDUCATION</topic><topic>EDUCATIONAL OR DEMONSTRATION APPLIANCES</topic><topic>GLOBES</topic><topic>GYROSCOPIC INSTRUMENTS</topic><topic>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</topic><topic>MEASURING</topic><topic>MEASURING DISTANCES, LEVELS OR BEARINGS</topic><topic>NAVIGATION</topic><topic>ORDER TELEGRAPHS</topic><topic>PHOTOGRAMMETRY OR VIDEOGRAMMETRY</topic><topic>PHYSICS</topic><topic>PLANETARIA</topic><topic>RADIO DIRECTION-FINDING</topic><topic>RADIO NAVIGATION</topic><topic>SEALS</topic><topic>SIGNALLING</topic><topic>SIGNALLING OR CALLING SYSTEMS</topic><topic>SURVEYING</topic><topic>TESTING</topic><topic>TRAFFIC CONTROL SYSTEMS</topic><toplevel>online_resources</toplevel><creatorcontrib>ENDO; FUMIHITO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ENDO; FUMIHITO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Security system for vehicle navigation system and method of detecting identification code</title><date>2000-08-22</date><risdate>2000</risdate><abstract>A vehicle navigation system with a security feature capable of detecting that the system has been removed from the vehicle, which uses only one memory for storing an anti-theft code. The navigation system is provided with a GPS receiver containing a clock outputting a time synchronized with present GPS time information, while receiving electric power from the vehicle battery, and returns the time to an initial preset time when not receiving power from the battery, and detects a present position of the vehicle by means of the present GPS time and position information. A CPU detects whether or not the time of the clock has returned to the initial time, an SRAM stores a preset identification code, and a controller requests input of an identification code when the CPU detects that the time of the clock has returned to the initial time, and compares the input identification code to the identification code stored in the SRAM, and operates in accordance with the result of the comparison.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ADVERTISING ALARM SYSTEMS ANALOGOUS ARRANGEMENTS USING OTHER WAVES APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE CRYPTOGRAPHY DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES DIAGRAMS DISPLAY EDUCATION EDUCATIONAL OR DEMONSTRATION APPLIANCES GLOBES GYROSCOPIC INSTRUMENTS LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION ORDER TELEGRAPHS PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS PLANETARIA RADIO DIRECTION-FINDING RADIO NAVIGATION SEALS SIGNALLING SIGNALLING OR CALLING SYSTEMS SURVEYING TESTING TRAFFIC CONTROL SYSTEMS |
| title | Security system for vehicle navigation system and method of detecting identification code |
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