Secure device identification protocol with autonomous determination of specific class and capabilities of an electronic device cradle connected to an electronic device
US8509738B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2011 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Feb 10, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronic device comprises: a memory having one or more class capabilities look-up tables; a communication port that enables connection of the electronic device to a device interface mechanism of a cradle accessory; an accessory authentication mechanism including configuration logic that, responsive to detection of an electrical coupling of the electronic device to the cradle accessory: initiates an authentication protocol that authenticates the cradle as an approved device for communicatively connecting with the electronic device; receives, from the cradle, N device status bits having a first set of M class bits that identify a class type of the cradle and a second set of P capabilities bits that identify which capabilities available to devices in that class type are supported by the cradle; and activates, on the electronic device and cradle, the one or more specific capabilities supported by the cradle, based on the class type and associated capabilities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.