Communication cell for an integrated circuit operating in contact and contactless mode, electronic chip comprising the communication cell, electronic system including the chip, and test apparatus
US9432020B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2015 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Jun 19, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/0948
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A communication cell for an integrated circuit includes a physical interface configured to supply an input signal (for example, a capacitive signal or an ohmic signal). A receiver circuit operates to receive the capacitive signal and generate a first intermediate signal. A buffer circuit operates to receive the ohmic signal and generate a second intermediate signal. An output stage including a selector device (for example, a multiplexer) configured to receive the first and second intermediate signals and selectively pass only one of those signals to the integrated circuit based on operating condition. The input signal may further be an inductive signal, with the output stage further functioning to selectively pass that signal based on operating condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.