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. 04, 2000
Filed:
Feb. 24, 1997
Applicant:
Inventor:
Michael Hudson, Portland, OR (US);
Assignee:
Diamond Multimedia Systems, Inc, San Jose, US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
37910202 ; 379 9311 ; 379 9326 ;
Abstract
A system to control and monitor telephony devices that do not digitally interface with a control device, such as a PC, is disclosed. The control device communicates with the telephony device typically via standard telephone cable using tones to convey status and control information.