Wireless powering and communication system for communicating data between a host system and a stand-alone device
US5502295A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1995 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Apr 11, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07783
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A wireless communication system for communicating between a host system and a stand-alone device through an electromagnetic coupling medium is disclosed. The communication system has the capabilities of bi-directional data communications between the host and the stand-alone device and of powering the stand-alone device with energy pulses coupled through the electromagnetic coupling medium from the host. The electromagnetic medium is capable of supporting the bi-directional flow of energy pulses and energy transitions thereof between the host and stand-alone device. In one embodiment, bi-directional communication is provided by transmitting and detecting predetermined numbers of consecutive energy transitions coupled through the medium. Resting durations immediately precede and follow each predetermined number of consecutive energy transitions. In a preferred embodiment of the present invention, the host communicates a first binary value to the stand-alone device by coupling a first predetermined number of consecutive energy transitions to the device and a second binary value to the device by coupling a second predetermined number of consecutive energy transitions. Additionally, the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.