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:
Aug. 30, 1994
Filed:
Feb. 13, 1992
Applicant:
Inventors:
David Callele, Saskatoon, CA;
Donald Cruickshank, Saskatoon, CA;
Assignee:
Digital Systems Group, Inc., Saskatchewan, CA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379 98 ; 379 90 ; 379 93 ; 379442 ; 379142 ;
Abstract
A telecommunications signalling interface for computer systems is presented. Control and information signals from the telephone switch are received, decoded, and converted to a standard interface format for retransmission to the computer. Control and information signals from the computer are received and converted to a standard format for transmission to the telephone switch. The power supply for the device may be derived from the telephone network and the computer interface.