IC chip for identification, method for reading out data therefrom, and method for writing data thereinto
US7598864B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 26, 2005 |
| Grant date | Oct 6, 2009 |
| Priority date | — |
| Expiry date | Dec 22, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07D7/01
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In order to eliminate limitation upon the frequency of a carrier wave from externally, this IC chip for identification includes: a power supply section which receives this carrier wave from outside and creates an internal power supply; a clock signal generation section for read out which generates an internal clock signal for read out based upon a clock signal pulse which is superimposed upon an optical signal from externally; a memory section; and an output section which serially reads out data in the memory section according to the internal clock signal for read out, and load modulates the carrier wave from outside based thereupon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.