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:
May. 29, 1984
Filed:
Aug. 24, 1981
Applicant:
Inventor:
Dennis M Monticelli, Fremont, CA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F / ; H04M / ;
U.S. Cl.
CPC ...
330278 ; 3403 / ; 330129 ;
Abstract
An amplifier suitable for carrier current line driver applications is shown. It includes a triangle wave to sine wave shaper circuit and an automatic level control. It incorporates a line surge arrestor circuit that is active even when the transmitting capability is disabled. The circuit is shown in an integrated circuit form, the output of which is capable of being boosted by off-chip components.