Host communication circuit, client communication circuit, communication system and communication method
US9628264B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2014 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Apr 9, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication system has a host communication circuit and a client communication circuit, which are connected to each other by means of a single signal wire. The host communication circuit generates a voltage modulated signal on the signal wire based on a reference clock signal, which in each clock cycle has a first period with a significant voltage change based on a clock edge of the reference clock signal, and a second period with a basically constant voltage variation. The host communication circuit (HCC) further can demodulate a current modulated signal received via the signal wire from the client communication circuit. The client communication circuit is configured to detect the significant voltage change in order to generate respective sync pulses in a sync signal, which is used to generate a client clock signal. A current modulation is performed by the client communication circuit based on the data to be transmitted a predetermined settling time after one of the sync pulses until the respective following sync pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.