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:
Jun. 10, 2003
Filed:
Aug. 30, 2001
Siegfried Hart, Kleinhoehenrain, DE;
Infineon Technologies AG, Munich, DE;
Abstract
Automatic gain control circuit for setting the gain of a signal amplifier having a peak value detector for measuring signal amplitudes of the analogue signal which is amplified by the signal amplifier, a comparator circuit which compares the measured signal amplitudes with an upper threshold value and a lower threshold value and generates digital range display data items which in each case indicate whether the measured signal amplitudes lie below the lower threshold value, between the two threshold values or above the upper threshold value, and having a digital control circuit which incrementally changes the gain of the signal amplifier as a function of the generated digital range display data until the digital range display data indicate that the measured signal amplitudes between the two threshold values lie in a lock-in amplitude range.