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:
Apr. 20, 2004
Filed:
Jan. 22, 2001
Gerald Oberschmidt, Bruchsal, DE;
Veselin Brankovic, Esslingen, DE;
Dragan Krupezevic, Stuttgart, DE;
Tino Konschak, Stuttgart, DE;
Thomas Dölle, Stuttgart, DE;
Sony International (Europe) GmbH, Berlin, DE;
Abstract
The present invention relates to a demodulation structure and method for downconverting and demodulating a digitally modulated signal S , with a local oscillator means ( ) for providing a local oscillator signal S a mixer means ( ) for mixing said local oscillator signal S and said digitally modulated signal S in order to obtain a mixed signal, a lowpass filter means ( ) for lowpass filtering the mixed signal from the mixer means ( ) and an analog-to-digital converting means ( ) for converting the filtered signal from the lowpass filter means ( ) into a downconverted and demodulated digital signal S , whereby the local oscillator signal is set in respect to the modulated digital signal so that the downconverted and demodulated digital signal output from the analog-to-digital converting means comprises to serially arranged information parts. The present demodulation structure provides a very simple structure with improved amplitude and phase imbalances.