Patent ID: 9325486
Filing Date: 2016-04-26
CPC Classification: H04L

Claim Text:
1. A two-way communication system including a master system and at least one slave system wherein: the master system comprises a master transmitter having a common reference connection and an input/output, the slave system comprises a slave transmitter having a common reference connection and an input/output, the common reference connection being connected to common reference connection -of the master transmitter and the input/output being connected to the input/output of the master transmitter, the master transmitter, in active state, transmits a master signal to the slave transmitter, the master signal being a digital modulation in voltage, in standby state, transmits a constant logic state to the slave transmitter, and while in standby state is operable to detect a current consumption by the slave transmitter and upon detecting such current consumption operable to switch from standby state to active state, the slave transmitter operable to signal the master transmitter to switch to active state by consuming current and transmitting a slave signal to the master transmitter, the slave signal being a digital modulation in current.