System and method for detecting a user location using a latest available location

• US 8,914,235 B1
• Filed: 05/10/2011
• Issued: 12/16/2014
• Est. Priority Date: 05/10/2011
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google Inc. (Alphabet Inc.)
• Inventors: Kennberg, Aleksandr V., Wichrowska, Olga
• Primary Examiner(s): MANCHO, RONNIE M
• Application Number:
  US13/104,093
• Time in Patent Office: 1,316 Days
• Field of Search: 455/456.3, 455/456.1, 455/456.2, 455/456.6, 455/404, 455/404.2, 701/467, 701/516, 701/483, 701/400, 701/517, 701/519, 701/521, 701/522, 701/527, 701/532, 701/537, 701/409, 701/408, 701/412, 701/468, 701/469, 701/484, 701/485, 701/491, 701/494, 701/495, 701/500, 701/513, 701/423, 701/533, 340/4.21, 340/995.14, 340/995.18
• US Class Current: 701/483
• CPC Class Codes: G01S 19/11 wherein the cooperating elements are pseudolites or satellite radio beacon positioning system signal repeaters
• CPC Class Codes: G01S 19/48 by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system

Abstract

A system and method for location detection is disclosed. The system and method may derive estimates of a user'"'"'s location by interfacing with other sources of location data. In one aspect of the invention, a client device may determine the user'"'"'s location by using locally configured location services. The client device may also query a remote server that contains recent geolocation data of the user. Both the local and remote estimates may be presented to a user. The user may also be allowed to select the location that most accurately represents the user'"'"'s current location.

Claims

1. A location detection method comprising:

receiving, using one or more processors, a request for a current geolocation of a user device;

obtaining, using the one or more processors, a previous geolocation of the user device from a first source of geolocation information, the previous geolocation of the user device being determined with a first type of location detection service;

obtaining, using the one or more processors, an estimate of the current geolocation of the user device, the estimate of the current geolocation being determined with a second type of location detection service different from the first type of location detection service; and

returning, using the one or more processors, the previous geolocation and the estimate of the current geolocation in response to the request for the current geolocation of the user device.

2. The location detection method of claim 1, wherein the first type of location detection service is a global positioning system.

3. The location detection method of claim 1, wherein the second type of location detection service is a WiFi location detection service.

4. The location detection method of claim 1, wherein the first source of geolocation information is a user location database containing the previous geolocation of the user device determined with the first type of location detection service.

5. A processing system for detecting a location of a user device, the system comprising:

at least one processor; and

memory for storing user location data, the memory electrically coupled to the at least one processor, wherein the at least one processor is configured to receive a request for a current geolocation of the user device, to obtain a previous geolocation of the user device from a first source of geolocation information, the previous geolocation of the user device being determined with a first type of location detection service, to obtain an estimate of the current geolocation of the user device, the estimate of the current geolocation being determined with a second type of location detection service different from the first type of location detection service, and to return the previous geolocation of the user device and the estimate of the current geolocation of the user device in response to the request for the current geolocation of the user device.

6. The system of claim 5, wherein the first type of location detection service is a global positioning system.

7. The system of claim 5, wherein the second type of location detection service is a WiFi location detection service.

8. The system of claim 5, wherein the first source of geolocation information is a user location database containing the previous geolocation of the user device determined with the first type of location detection service.

9. A location detection method comprising:

transmitting, using one or more processors, a request for a current geolocation of a user device;

receiving, using one or more processors, a previous geolocation of the user device, the previous geolocation of the user device being determined with a first type of location detection service;

determining, using one or more processors, an estimate of the current geolocation of the user device with at least one other type of location detection service different from the first type of location detection service; and

calculating, using one or more processors, the current geolocation of the user device based at least in part on the previous geolocation of the user device and the estimate of the current geolocation of the user device.

10. The location detection method of claim 9, wherein the first location detection service is a global positioning system.

11. The location detection method of claim 9, wherein the estimate of the current geolocation of the user device and the previous geolocation of the user device are rendered on an electronic display.

12. The location detection method of claim 9, wherein the at least one other location detection service is a WiFi location detection service.

13. A processing system for detecting a location of a user device, the system comprising:

at least one processor; and

memory for storing user location data, the memory electrically coupled to the at least one processor, wherein the at least one processor is configured to transmit a request for a current geolocation of the user device, to receive a previous geolocation of the user device, the previous geolocation of the user device being determined with a first type of location detection service, to determine an estimate of the current geolocation of the user device with at least one other type of location detection service different from the first type of location detection service, and to calculate the current geolocation of the user device based at least in part on the previous geolocation of the user device and the estimate of the current geolocation of the user device.

14. The processing system of claim 13, wherein the first location detection service is a global positioning system.

15. The processing system of claim 13, wherein the estimate of the current geolocation of the user device and the previous geolocation of the user device are rendered on an electronic display.

16. The processing system of claim 13, wherein the at least one other location detection service is a WiFi location detection service.