Power line communication modem capable of simultaneously supplying power and exchanging data

• US 20030185027A1
• Filed: 03/31/2003
• Published: 10/02/2003
• Est. Priority Date: 04/01/2002
• Status: Active Grant

• Current Assignee: ALPS Electric Company Limited (Alps Alpine Co., Ltd.)
• Original Assignee: ALPS Electric Company Limited (Alps Alpine Co., Ltd.)
• Inventors: Yokoo, Kenichi, Tadachi, Akio
• Granted Patent: US 6,999,505 B2
• Time in Patent Office: Days
• US Class Current: 363/81
• CPC Class Codes: H04B 2203/5408 using protocols
• CPC Class Codes: H04B 2203/5445 Local network
• CPC Class Codes: H04B 2203/547 via DC power distribution
• CPC Class Codes: H04B 3/54 Systems for transmission via power distribution lines
• CPC Class Codes: H04B 3/56 Circuits for coupling, blocking, or by-passing of signals

Abstract

A power line communication MODEM includes a rectification circuit for converting an AC power source to a DC power source, a MODEM circuit to which a DC voltage is supplied from the rectification circuit, a USB connector connected to the MODEM circuit, and a signal overlapping circuit for overlapping a signal processed by the MODEM circuit with the AC power source, wherein the rectification circuit supplies the DC voltage to the USB connector.

Claims

1. A power line communication MODEM including:

a rectification circuit for converting an AC power source to a DC power source;

a MODEM circuit to which a DC voltage is supplied from said rectification circuit;

a USB connector connected to said MODEM circuit; and

a signal overlapping circuit for overlapping a signal processed by said MODEM circuit with said AC power source;

wherein said rectification circuit supplies said DC voltage to said USB connector.

2. A power transmission line MODEM as defined in claim 1, wherein a case for accommodating said rectification circuit, said MODEM circuit and said signal overlapping circuit is provided, and said USB connector is fitted to said case.