Electronic writing apparatus with ring-back and other functionalities
US11221709B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2020 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Oct 14, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04106
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit includes a function module, a processing module, and a transceive circuit. The function module is operably coupled to detect stimulus of an electronic writing apparatus and generate functional data based on the stimulus. The processing module is operable to generate an outbound data signal from the functional data. The transceive circuit is coupled to a conductor of the electronic writing apparatus and includes a reference circuit operably coupled to, generate an identifier signal having a unique waveform characteristic that is an identifier for an aspect of the electronic writing apparatus, and combine the outbound data signal with the identifier signal to produce a transmit reference signal. The transceive circuit also includes a drive-sense circuit that is operably coupled to regulate the transmit reference signal on the conductor and generate an error correction signal based on the transmit reference signal and an inbound signal received via the conductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.