Japanese Inventor Develops Communication Line Connection Adapter

ALEXANDRIA, Va., Sept. 4 -- Hirotaka Yamaji of Tokyo has developed a communication line connection adapter.

According to the U.S. Patent & Trademark Office: "Disclosed is a communication line connecting adapter which adequately connects an ordinary telephone, Internet protocol (IP) phone and modem/facsimile machine to a connecting party."

An abstract of the invention, released by the Patent Office, said: "The adapter comprises first to third switches, a line which connects a common terminal of the first switch to the modem/facsimile machine via a first data access arrangement (DAA) circuit, a line which connects a zeroth node terminal of the first switch to a public telephone line and a common terminal of the second switch, a line which connects a first node terminal of the first switch to a voice over Internet protocol (VoIP) gateway via an subscriber line interface circuit, a line which connects the first node terminal of the first switch to a zeroth node terminal of the third switch, a line which connects a zeroth node terminal of the second switch to the VoIP gateway via a second DAA circuit, a line which connects a first node terminal of the second switch to a first node terminal of the third switch, and a line which connects a common terminal of the third switch to an extension line."

The inventor was issued U.S. Patent No. 7,263,094 on Aug. 28.

The patent has been assigned to NEC Corp., Tokyo.

The original application was filed on Nov. 25, 2003, and is available at: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7,263,094.PN.&OS=PN/7,263,094&RS=PN/7,263,094.

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