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:
Feb. 17, 1998
Filed:
Jan. 11, 1996
Applicant:
Inventors:
Tatsuhiko Ando, Fukushima-ken, JP;
Yuji Kobayashi, Fukushima-ken, JP;
Masumi Kumakura, Fukushima-ken, JP;
Assignee:
Hitachi Telecom Technologies, Ltd., Koriyama, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04J / ;
U.S. Cl.
CPC ...
370280 ; 370421 ; 370524 ;
Abstract
A plurality of digital telephones 2A, 2B are provided in direct multiple connection with a digital line 4 introduced from a private branch exchanging system. Each of the digital telephones 2A, 2B sends a burst signal containing its own telephone call data, and burst signals from the telephones 2A, 2B are combined into a single burst signal on the digital line 4 to transmit communication data of the telephones 2A, 2B in the form of the single burst signal to the private branch exchanger 1.