Communication system, communication device, and communication method
US7548623B2 · kind B2 · utility
38Cited by
0References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 26, 2005 |
| Grant date | Jun 16, 2009 |
| Priority date | — |
| Expiry date | Aug 1, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One and the other communication terminals for performing wireless communication are connected by a cable. The one communication terminal performs control so that an encryption key is transmitted from the one communication terminal to the other communication terminal by wireless during a period in which the potential of the cable is active. The other communication terminal stores the encryption key received from the one communication terminal within the period in which the potential of the cable is active, as a valid key, for use in subsequent encryption processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.