Invention Grant
- Patent Title: Power line communication device, power supply circuit with communication function, electric appliance, and control and monitoring system
- Patent Title (中): 电力线通信装置，具有通信功能的电源电路，电器，控制和监控系统
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Application No.: US13388878Application Date: 2010-08-04
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Publication No.: US09136911B2Publication Date: 2015-09-15
- Inventor: Takashi Hikihara , Tsuguhiro Takuno , Kenichi Hirotsu , Takefumi Shimoguchi , Toshikazu Shibata , Takashi Tsuno , Satoshi Hatsukawa
- Applicant: Takashi Hikihara , Tsuguhiro Takuno , Kenichi Hirotsu , Takefumi Shimoguchi , Toshikazu Shibata , Takashi Tsuno , Satoshi Hatsukawa
- Applicant Address: JP Osaka JP Kyoto
- Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.,KYOTO UNIVERSITY
- Current Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.,KYOTO UNIVERSITY
- Current Assignee Address: JP Osaka JP Kyoto
- Agency: McDermott Will & Emery LLP
- Priority: JP2009-183745 20090806
- International Application: PCT/JP2010/063146 WO 20100804
- International Announcement: WO2011/016466 WO 20110210
- Main IPC: G08C19/12
- IPC: G08C19/12 ; H04B3/56 ; H04B3/54
Abstract:
To realize a transmission function of power line communication by a further simplified and cost-effective circuit configuration, in a PLC modem installed in an electric appliance such as a household electrical appliance. A semiconductor switching element that is present on an electric circuit connected to a power line is driven by a modulator unit. The modulator unit controls ON/OFF operations of the semiconductor switching element, to thereby cause a communication signal of a modulated rectangular wave to be output to the power line for a prescribed period.
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