Battery pack provided with authentication circuitry
US6605922B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2002 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Nov 26, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The battery pack is provided with output terminals and an authenticity discriminating circuit. The authenticity discriminating circuit is not supplied power from the rechargeable battery, nor is it connected to either the rechargeable battery or the output terminals. The authenticity discriminating circuit is provided with a receiver section which receives an activating radio wave from the electrical equipment, a transmitter section which sends an authentication radio wave as a signal to discriminate authenticity when the receiver section receives the activating radio wave, and a power supply section which converts the activating radio wave to direct current to supply electrical power to the receiver section and the transmitter section. When the battery pack is attached to electrical equipment and the authenticity discriminating circuit receives an activating radio wave, the power supply section supplies power to the receiver section and transmitter section, and the transmitter section sends an authentication radio wave to discriminate battery pack authenticity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.