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:
Aug. 27, 1996
Filed:
Aug. 10, 1994
Raimund Becker, Hildesheim, DE;
Blaupunkt-Werke GmbH, Hildesheim, DE;
Abstract
The invention relates generally to a method for adjusting the volume of a vehicle radio to the surrounding noise level, where the audio signal level, sampled downstream of a setting element (2), placed in the path of the audio signal, and a driving noise signal level (FG) are supplied to a control loop (1, 2, V1) that attempts to minimize the difference between the audio signal level and the driving noise signal level. To prevent the signal level from running up during a signal pause and a driving noise level at hand, an audio signal pause recognition is provided which identifies low-signal audio passages as pauses, using a variable threshold, and slowly lowers the audio signal level during these pauses.