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. 06, 1976
Filed:
Sep. 12, 1974
David M Motley, Santa Ana, CA (US);
King Y Cheng, Tustin, CA (US);
Hycom Incorporated, Irvine, CA (US);
Abstract
An Automatic Gain Control responsive to an input analog signal having a significantly varying power level provides an output analog signal of substantially constant power level. An analog-to-digital converter samples the output analog signal and expresses the amplitude of the samples in digital words characterized by bits including a Most Significant Bit. The Automatic Gain Control is responsive to the digital characteristics of at least the Most Significant Bit of the digital words to amplify the output analog signal to the substantially constant power level. This permits amplification of the input signal to a level approaching the maximum level expressible by the digital words and significantly reduces the quantization noise of the converter by maximizing the number of digital words which are available to express the signal amplitude.