Determining location using time difference of arrival
US10591580B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2014 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | May 5, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/04886
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Example implementations relate to determining a location using time difference of arrival (TDOA). For example, a computing device may include a first sensor to receive a signal at a first time, where the signal is generated by a user contact at a particular location on a keyboard associated with the computing device. The computing device also includes a second sensor to receive the signal at a second time and a third sensor to receive the signal at a third time. The computing device may also include a processor. The processor may calculate a set of TDOAs associated with the first time, the second time, and the third time. The processor may determine the particular location of the user contact using a triangulation based on the set of TDOAs and may identify a character on the keyboard, where the character is associated with the particular location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.