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. 11, 1986
Filed:
Dec. 02, 1983
Applicant:
Inventor:
Paul M Basehore, Sanford, FL (US);
Assignee:
Stromberg-Carlson Corporation, Lake Mary, FL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ;
U.S. Cl.
CPC ...
3701102 ;
Abstract
A digital tone signal generator for generating digital tone words of selected frequencies and selected cadences in a predetermined number of sequential time slots for use by a telephony system. The generator stores signals representative of each of the frequencies and, in response to a timing signal from the telephony system, generates update signals representative of the amplitudes of the tones at the time the timing signal is received. The cadence is applied to the amplitude signals to obtain the output digital tone word.