Pairing an accessory with a host device using accessory output device
US8521086B2 · kind B2 · utility
12Cited by
2References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2011 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Oct 10, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/72412
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for pairing an accessory with a host device includes placing an output device of the accessory into a randomly selected state N-times. The information about the current state of the accessory is provided to a host device after each state selection for N number of times. Thereafter, the host device generates an authentication code based on the N inputs and the accessory generates another authentication code based on the N selected states. The authentication codes can be then compared and can be used to “pair” the host device and the accessory, allowing secure communication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.