The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 2012
Filed:
Sep. 08, 2009
Muneyuki Suzuki, Tokyo, JP;
Muneyuki Suzuki, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A communication system, a communication apparatus and a terminal accommodation apparatus which use a metallic subscriber line and are a high-speed and inexpensive are provided. The communication system includes a plurality of terminal accommodation apparatusesfor accommodating terminals, a communication apparatusconnected to an IP network, and digital subscriber lines Lfor connecting the plurality of terminal accommodation apparatusesand the communication apparatus. The terminal accommodation apparatusincludes a PCM (pulse code modulation) modulator and a subscriber line interface. The PCM modulator converts a voice signal received from the terminalto PCM data. The subscriber line interface transmits data including the PCM data to the communication apparatusvia the metallic subscriber line L. The communication apparatusincludes an IP converterfor converting the PCM data to an IP (Internet protocol) packet.