Power line communication modem not requiring extra plug socket

• US 20030169157A1
• Filed: 03/04/2003
• Published: 09/11/2003
• Est. Priority Date: 03/05/2002
• 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
• Granted Patent: US 6,867,689 B2
• Time in Patent Office: Days
• US Class Current: 340/310.01
• CPC Class Codes: H04B 2203/5408 using protocols
• CPC Class Codes: H04B 2203/5441 Wireless systems or telephone
• 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 MODEM main body portion and a power supply portion for converting an A.C. power source to a D.C. power source and supplying the D.C. power source to the main body portion through a cable. An attachment plug for inputting the A.C. power source and a plug socket connected to the attachment plug are provided to the power supply portion, and a power source is supplied from this plug socket to an information processing unit such as a personal computer.

Claims

1. A power line communication MODEM including:

a MODEM main body portion;

a power supply portion for converting an A.C. power source to a D.C. power source and supplying the D.C. power source to said MODEM main body portion through a cable; and

an attachment plug for inputting said A.C. power source and a plug socket connected to said attachment plug, each being provided to said power supply portion;

wherein said MODEM main body portion and said power supply portion are connected through signal lines, a USB connector or/and an Ethernet connector each for inputting/outputting data are fitted to said MODEM main body portion and to said power supply portion, respectively, and said USB connector or/and said Ethernet connector fitted to said MODEM main body portion are connected to said USB connector or/and said Ethernet connector fitted to said power source portion through said signal lines.

2. A power line communication MODEM according to claim 1, wherein a modular jack is fitted to said power supply portion and terminals of said modular jack are connected to said attachment plug by signal overlapping means.

3. A power line communication MODEM comprising:

a rectification circuit for converting an A.C. power source to a D.C. power source;

a MODEM circuit for receiving the supply of a D.C. voltage from said rectification circuit; and

a case for accommodating said rectification circuit and said MODEM circuit;

wherein an attachment plug for inputting said A.C. power source and a plug socket connected to said attachment plug, for inserting another attachment plug, are fitted to said case.

4. A power line communication MODEM according to claim 3, wherein one or more each USB connector or/and Ethernet connector for inputting/outputting data, connected to said MODEM circuit, are fitted to said case.

5. A power line communication MODEM according to claim 3, wherein a modular jack is fitted to said case and terminals of said modular jack are connected to said attachment plug by signal overlapping means.