# US 8,751,146 B2 · Navigation system having location based service and temporal management > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,751,146 B2 - Document ID: US8751146B2 - Status: Granted - Kind: B2 - Application number: 11/897,314 - Filed: 2007-08-30 - Published: 2009-03-05 - Granted: 2014-06-10 - Earliest claimed: 2007-08-30 - Assignees: Telenav, Inc. - Applicants: Musiri Shrivathsan; David Chiu - Inventors: Musiri Shrivathsan; David Chiu - Web page: https://patentgrep.com/patent/US8751146B2 ## CPC - G01C 21/26: specially adapted for navigation in a road network - G08G 1/096816: {where the complete route is transmitted to the vehicle at once} - G08G 1/096838: {where the user preferences are taken into account or the user selects one route out of a plurality} - G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S) - G08G: TRAFFIC CONTROL SYSTEMS (guiding railway traffic, ensuring the safety of railway traffic B61L; arrangement of road signs or traffic signals E01F9/00; radar or analogous systems, sonar systems, lidar systems specially adapted for traffic control G01S13/91, G01S15/88, G01S17/88; {radar or analogous systems, sonar systems, lidar systems specially adapted for anti-collision purposes G01S13/93, G01S15/93, G01S17/93}) ## Abstract A method of operating navigation system having location based services and temporal management comprising selecting a temporal component including a time of interest in a client, a server, or a combination thereof; filtering navigation and location based information with the temporal component by the client, the server, or a combination thereof, for forming time of interest relevant information; and communicating the time of interest relevant information between the client and the server for display by the client. ## Claims ### Claim 1 A method of operating navigation system having location based services and temporal management comprising: selecting a temporal component for identifying a time of interest for a client, a server, or a combination thereof; sending a server request based on comparing an elapsed time between a specified cache update time and a last cache update time; receiving a temporal stamped local content, with a control device, corresponding to the temporal component at the time of the server request; updating a local content cache based on the temporal stamped local content indicating a cache update time for when the local content cache is updated; filtering the temporal stamped local content with the temporal component for forming time of interest relevant information; and communicating the time of interest relevant information for displaying the local content cache by the client. ### Claim 2 (depends on 1) The method as claimed in claim 1 further comprising further filtering the time of interest relevant information for generating a further time of interest relevant information. ### Claim 3 (depends on 1) The method as claimed in claim 1 wherein filtering the temporal stamped local content with the temporal component comprises generating the time of interest relevant information from the temporal stamped local content. ### Claim 4 (depends on 1) The method as claimed in claim 1 wherein communicating the time of interest relevant information comprises storing the time of interest relevant information in the local content cache. ### Claim 5 (depends on 1) The method as claimed in claim 1 wherein communicating the time of interest relevant information comprises information relating to a future time, a past time, or a combination thereof. ### Claim 6 A method of operating navigation system having location based services and temporal management comprising: selecting a temporal component for identifying a time of interest for a client, a server, or a combination thereof; sending a server request based on comparing an elapsed time between a specified cache update time and a last cache update time; receiving a temporal stamped local content, with a control device, corresponding to the temporal component at the time of the server request; updating a local content cache based on the temporal stamped local content indicating a cache update time for when the local content cache is updated; filtering temporal stamped local content with the temporal component for forming time of interest relevant information; communicating the time of interest relevant information to the client; and storing the time of interest relevant information in the local content cache for displaying by the client. ### Claim 7 (depends on 6) The method as claimed in claim 6 wherein storing the time of interest relevant information further comprises a further filtering of the time of interest relevant information. ### Claim 8 (depends on 6) The method as claimed in claim 6 wherein selecting a temporal component comprises selecting a future time, a past time, or a combination thereof. ### Claim 9 (depends on 6) The method as claimed in claim 6 wherein filtering the temporal stamped local content comprises filtering to form time of interest relevant information including filtering with a future time, a past time, or a combination thereof. ### Claim 10 (depends on 6) The method as claimed in claim 6 further comprising detecting GPS data information in the server request. ### Claim 11 A navigation system having location based services and temporal management comprising: a control device having location based service capability, a local content cache, and a client output means, wherein the control device is for: sending a server request based on comparing an elapsed time between a specified cache update time and a last cache update time; receiving a temporal stamped local content corresponding the temporal component at the time of the server request, the temporal component including a time of interest selected in a client, a server, or combination thereof; updating the local content cache based on the temporal stamped local content indicating a cache update time for when the local content cache is updated; and a temporal filter, coupled to the control device, for filtering the temporal stamped local content with the temporal component to generate time of interest relevant information for the client output means. ### Claim 12 (depends on 11) The navigation system of claim 11 wherein the temporal filter is included in the client. ### Claim 13 (depends on 11) The navigation system of claim 11 wherein the temporal filter is for sorting the time of interest relevant information received from the server. ### Claim 14 (depends on 11) The navigation system of claim 11 wherein the temporal filter comprises a temporal input means to a receiver a user controlled temporal entry. ### Claim 15 (depends on 11) The navigation system of claim 11 wherein the client further comprises a GPS function means to detect and monitor a position of the client. ### Claim 16 (depends on 11) The navigation system of claim 11 wherein the client further comprises an input means for receiving an information request entry. ### Claim 17 (depends on 11) The navigation system of claim 11 wherein the client output means comprises a client display. ### Claim 18 (depends on 11) The navigation system of claim 11 wherein the client output means comprises an audio output means. ### Claim 19 (depends on 11) The navigation system of claim 11 wherein the client output means further comprises a user interface controller coupled to a client display. ### Claim 20 (depends on 11) The navigation system of claim 11 wherein the client output means further comprises a user interface controller coupled to control an audio-visual means.