发明名称 |
Acquisition of navigation assistance information for a mobile station |
摘要 |
Navigation assistance information for a mobile station is acquired based on a feature descriptor of an image of a visual beacon captured by the mobile station. The navigation assistance information includes locations of neighboring visual beacons, locations of wireless positioning resources; user environmental context information. The navigation assistance information may then be used to assist in navigating within the local environment. The visual beacon may be an artificial feature, such as a QR code or other type of matrix or bar code or a natural feature, such as a statute or architectural detail. The mobile station may request navigation assistance by transmitting the feature descriptor to a server. The server retrieves the navigation assistance information from a database based on the feature descriptor and optionally location information, which may also be provided in the navigation assistance request, and transmits the navigation assistance information to the mobile station. |
申请公布号 |
US9229089(B2) |
申请公布日期 |
2016.01.05 |
申请号 |
US201012813351 |
申请日期 |
2010.06.10 |
申请人 |
QUALCOMM Incorporated |
发明人 |
Do Ju-Yong;Farmer Dominic Gerard |
分类号 |
H04M3/42;G01S5/02;G01C21/20 |
主分类号 |
H04M3/42 |
代理机构 |
|
代理人 |
Tomeh M. Munes |
主权项 |
1. A method comprising:
imaging a visual beacon within an environment with a mobile station; generating, with a processor, at least one feature descriptor for the visual beacon; obtaining, with the processor, locations of neighboring visual beacons associated with the feature descriptor, the neighboring visual beacons being different than the visual beacon imaged with the mobile station; and using the locations of neighboring visual beacons with the processor to assist in navigating within the environment by updating the mobile station position during navigation based on a location of a neighboring visual beacon of the neighboring visual beacons when the neighboring visual beacon is imaged by the mobile station. |
地址 |
San Diego CA US |