Data transmission with power supply noise compensation
US10230370B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2017 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | May 5, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/595
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In one form, a data transmission system includes transmission and reception circuits. The transmission circuit includes a first driver having an input for receiving a first transmit data signal, an output, a positive power supply terminal for receiving an input/output (I/O) power supply voltage, and a negative terminal for receiving an I/O ground voltage, a second driver having an input for receiving the I/O power supply voltage, an output, and a positive power supply terminal for receiving the I/O power supply voltage, and a third driver having an input for receiving the I/O ground voltage, an output, and a negative power supply terminal coupled to the I/O ground voltage. The reception circuit forms a reference voltage based an average of signal content below a predetermined frequency of outputs of the second and third drivers, and receives a signal from the output of the first driver using the reference voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.