Systems and methods for determining whether a companion communication device is beyond a proximity of a primary communication device
US9225393B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2012 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Jun 19, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/24
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methods for determining whether a companion communication device is beyond a proximity of a primary communication device are provided. In some aspects, a system includes an analysis module configured to determine whether a wireless transaction between the primary communication device and the companion communication device is at a conclusion. The system also includes a communications module configured to emit a sensing signal based on the determination of whether the transaction is at the conclusion. The sensing signal is insufficient to elicit a response from the companion communication device. The system also includes a detection module configured to detect a present parameter associated with the emitted sensing signal. The analysis module is configured to determine a parameter change between the present parameter and a reference parameter, and to determine whether the companion communication device is beyond the proximity of the primary communication device based on the parameter change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.