System and method for identifying wireless devices using pulse fingerprinting and sequence analysis
US7835319B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 2007 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | May 31, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/309
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods are provided for identifying devices that are sources of wireless signals from received radio frequency (RF) energy. RF energy is received at a device called a sensor device herein. Pulse metric data is generated from the received RF energy. The pulse metric data represents characteristics associated with pulses of received RF energy. The pulses are partitioned into groups based on their pulse metric data such that a group comprises pulses having similarities for at least one item of pulse metric data. Sources of the wireless signals are identified based on the partitioning process. The partitioning process involves iteratively subdividing each group into subgroups until all resulting subgroups contain pulses determined to be from a single source. At each iteration, subdividing is performed based on different pulse metric data than at a prior iteration. Ultimately, output data is generated (e.g., a device name for display) that identifies a source of wireless signals for any subgroup that is determined to contain pulses from a single source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.