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. 23, 1988
Filed:
Jul. 05, 1984
Paul Van Broekhoven, Needham, MA (US);
The Charles Stark Draper Laboratory, Inc., Cambridge, MA (US);
Abstract
Apparatus for improving the signal-to-noise ratio of a weak signal corrupted by a larger additive noise signal. The apparatus includes an analog to digital converter for quantizing the received weak signal plus noise signal into a word of greater than 3-states. Solid state digital memory is provided for storing a finite string of the quantized weak signal plus noise. A digital processor determines the discrete probability domain characteristics of the noise and computes an optimum discrete transfer function for operating on the received signal plus noise based on the probability law of the noise. The processor also quantizes the optimum discrete transfer function into two or three states and operates on the string of quantized weak signal plus noise with the quantized optimum discrete transfer function. In this way, the signal-to-noise ratio of the weak signal is improved and the string of quantized weak signal plus noise is represented by 2- or 3-state words.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile