Communication device and method(s)
US5485154A · kind A · utility
35Cited by
41References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Jan 18, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/77
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention relates to the areas of communication and/or identification of remote devices (active or passive). The invention has application where there is a need to identify or communicate with more than one remote device. The remote device may be embodied as a transmitter arrangement, transducer, transponder or responder. In particular, the present invention calls for each remote device to include a transmitter means in which, at each transmission, a carrier frequency or medium is newly selected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.