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:
Jul. 18, 1978
Filed:
Mar. 15, 1976
Applicant:
Inventor:
Richard E De Freitas, Westford, MA (US);
Assignee:
Hybrid Systems Corporation, Bedford, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
3403 / ; 179 / ; 325 / ; 332 / ; 3403 / ;
Abstract
A digital delay line for an analog signal having an improved efficiency in converting between the analog and digital signal formats. The delay line operates by converting an analog output into a representative series of binary ones and zeros which are applied through a shift register at a set clock rate. The shift register output, at a selected delay interval, is reconverted to the original analog levels. The conversions are governed by a logic network which increases the conversion efficiency to permit a lower clock rate and shorter shift register without a corresponding loss in frequency response.