Patent ID: 9369178
Filing Date: 2016-06-14
CPC Classification: H04B

Claim Text:
1. A PLC/power-supply hybrid device, comprising: a power supply circuit that performs voltage conversion in which an input voltage applied to a voltage input terminal is converted into a voltage having a predetermined voltage value, and outputs the voltage obtained as a result of the voltage conversion to a voltage output terminal, wherein said power supply circuit includes: said control circuit is operable in a normal mode and a transmission mode, the normal mode being a mode in which the power supply circuit performs the voltage conversion, and the transmission mode being a mode in which data transmission is performed through power line communication (PLC) using a power line that leads to said voltage input terminal, and in the transmission mode, said control circuit modulates the switching of said switching part in accordance with transmission data, and said PLC/power-supply hybrid device further comprises: a voltage detector connected at said voltage output terminal side relative to a position where said switching part is connected, and configured to detect a voltage corresponding to the input voltage; and a PLC processing circuit that performs: a reception data extraction process in which data transmitted from another device to the power line is extracted from the detected voltage detected by said voltage detector, and an input voltage estimation process in which the input voltage is estimated from the detected voltage based on information given in advance concerning a circuit configuration between said voltage input terminal and said voltage detector, wherein the reception data extraction process is performed on an estimated voltage obtained as a result of the input voltage estimation process.