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:
Jan. 12, 1982
Filed:
Sep. 11, 1979
Abstract
To convert a sample of an amplitude-modulated voltage wave into binary pulses, the sample is simultaneously compared in two coders with two sets of threshold voltages of positive and negative polarity, respectively. Either one of the two coders yields in unbroken succession of pulses, having the same polarity as the sample, whereas the other coder produces a combination of both positive and negative pulses. Following inversion of the pulses issuing from one coder, and upon suppression of the pulses of one polarity (e.g. negative), the two pulse trains are combined into a series of bit groups each representing the absolute amplitude value of a respective sample. The final step in the processing of any sample is the generation of a sign bit in accordance with the polarity of the unipolar pulse train emitted by one of the coders; this sign bit is then transposed to the beginning of the corresponding group of amplitude bits.