G | PHYSICS |
06 | COMPUTING; CALCULATING; COUNTING |
K | RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS |
19 | Record carriers for use with machines and with at least a part designed to carry digital markings |
06 | characterised by the kind of the digital marking, e.g. shape, nature, code |
067 | Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards ; also with resonating or responding marks without active components |
07 | with integrated circuit chips |
0701 | at least one of the integrated circuit chips comprising an arrangement for power management |
0707 | the arrangement being capable of collecting energy from external energy sources, e.g. thermocouples, vibration, electromagnetic radiation |
0708 | the source being electromagnetic or magnetic |
0709 | the source being an interrogation field |