System and method to record encrypted content with access conditions
US9395207B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2011 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Aug 8, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S40/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A secure detachable utility monitoring device is disclosed, to be appended to a utility metering apparatus for controlling at least one utility usage consumption. A detachable metering monitoring device of at least one embodiment includes: a usage reading interface to acquire a utility consumption value metered by the utility meter; a first memory to store at least a unique identifier ID and a personal key, both pertaining to the device; a crypto processor to generate a cryptogram from information data comprising at least the utility consumption value, the cryptogram being encrypted with the personal key; a message generator to generate an information message including at least the cryptogram and the unique identifier ID; and a communication network interface including a sending unit to send the information message to a remote management center.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.