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. 02, 1999
Filed:
Aug. 01, 1997
Robert D DeCarlo, Jr, Palatine, IL (US);
Zenith Electronics Corporation, Glenview, IL (US);
Abstract
A method and system for enhancing a digital input signal and producing a modified digital output signal that can either be further digitally processed or that can be converted to an analog signal. A digital input signal passes through a low-pass filter, a high-pass filter and a bandpass filter. A digital signal emitted from a high-pass section of the bandpass filter is delivered to a dynamically-controlled multiplier operating in a digital domain. Digital signals emitted from the low-pass filter, the high-pass filter and the bandpass filter are summed with a signal multiplied by the dynamically-controlled multiplier. A process controller and a contour controller can be used to vary low-frequency boost and high-frequency boost delivered by the modified digital input signal which can then be converted to an analog audio output sample.