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:
Sep. 05, 1978
Filed:
Oct. 17, 1977
Applicant:
Inventor:
David E Blackmer, Wilton, NH (US);
Assignee:
DBX, Inc., Newton, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
179 / ; 179 / ;
Abstract
An improved signal conditioning compander system includes one or more weighting networks designed so that the system provides a substantially flat single-frequency sine wave sweep response through or on the transmission medium throughout the frequency bandwidth of interest. The system provides greater high-frequency weighting than heretofore practical and at the same time permits full level transmission over the entire frequency spectrum transmitted or recorded.