Theme detection for object-recognition-based notifications
US-12183330-B2 · Dec 31, 2024 · US
Relative positioning applications in wireless devices
US8933776B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8933776-B2 |
| Application number | US-201213594363-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 24, 2012 |
| Priority date | Jul 20, 2012 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
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Abstract
Official abstract text for this publication.
Techniques for determining whether a mobile device crosses a boundary defined by a first wireless access point (WAP) and a second fixed-location WAP are provided. A method according to these techniques includes receiving, at a mobile device, information defining a boundary defined by first and second fixed-location WAPs, the boundary being defined at least in part based on a ratio of a round trip time (RTT) between the mobile device and the first fixed-location WAP to a ratio of a RTT between the mobile device and the second fixed-location WAP, determining the ratio of the RTT between the mobile device and the first fixed-location WAP to a ratio of the RTT between the mobile device and the second fixed-location WAP, determining whether the mobile device has crossed the boundary, and triggering an event in response to the mobile device crossing the boundary.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for determining whether a mobile device crosses a boundary defined by a first wireless access point and a second wireless access point, the method comprising: receiving, at the mobile device, information defining the boundary defined by the first wireless access point and the second wireless access point, the boundary being defined at least in part based on a ratio of a round trip time (RTT) between the mobile device and the first wireless access po…
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Classifications
Electricity · mapped topic
- H04W4/021Primary
Electricity · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US8933776B2 cover?
- Techniques for determining whether a mobile device crosses a boundary defined by a first wireless access point (WAP) and a second fixed-location WAP are provided. A method according to these techniques includes receiving, at a mobile device, information defining a boundary defined by first and second fixed-location WAPs, the boundary being defined at least in part based on a ratio of a round tr…
- Who is the assignee on this patent?
- Dua Praveen, Garin Lionel Jacques, Qualcomm Inc
- What technology area does this patent fall under?
- Primary CPC classification H04W4/021. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 13 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).