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:
May. 01, 2007
Filed:
Aug. 30, 2004
Michael Maurer, Waiblingen, DE;
Andreas Adler, Schlierbach, DE;
Michael Maurer, Waiblingen, DE;
Andreas Adler, Schlierbach, DE;
Dialog Semiconductor GmbH, Kirchheim/Teck-Nabern, DE;
Abstract
A communication device such as a cellular or wireless telephone handset has a light display, such as handset cover light or display backlight, synchronized to audio signals from multiple audio sources such as a microphone or AM/FM receiver. The communication device further includes an audio to illumination conversion apparatus for modulating the light display in response to the audio signal. The audio to illumination conversion apparatus has a plurality of audio filter circuits for filtering the audio signal to restrict frequency content of the audio signal to a pass-band. Multiple integration circuits generate an energy content signal indicating an energy level within the pass-band and for the whole spectrum of the audio signal. An illumination modulator generates a modulation pattern for the light display in response to the energy content signals from a predefined light show.