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:
Dec. 23, 2008
Filed:
Aug. 09, 2005
Feng Ying, Plano, TX (US);
Karl Hertzian Renner, Dallas, TX (US);
Weider Peter Chang, Hurst, TX (US);
Shereef Shehata, Allen, TX (US);
Viet Dinh, Arlington, TX (US);
Xiaodong Wu, Frisco, TX (US);
Walter Heinrich Demmer, Nuremberg, DE;
Feng Ying, Plano, TX (US);
Karl Hertzian Renner, Dallas, TX (US);
Weider Peter Chang, Hurst, TX (US);
Shereef Shehata, Allen, TX (US);
Viet Dinh, Arlington, TX (US);
Xiaodong Wu, Frisco, TX (US);
Walter Heinrich Demmer, Nuremberg, DE;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
System and method for an all-digital audio receiver for a BTSC MTS audio signal or other composite signal that is FM modulated. A preferred embodiment comprises a digital FM demodulator for receiving an analog to digital quantized SIF signal and performing demodulation and outputting a composite audio signal, and a digital audio processor for decomposing the composite audio signal into at least the SAP, stereo and monaural signals for audio reproduction. In a preferred embodiment, the digital audio processor is a programmable digital signal processor. In a preferred embodiment, the digital FM demodulator and the digital audio processor are implemented as an integrated circuit. Methods for processing the audio signal using the digital processors of the invention are provided.