Title of Invention

DEVICE FOR DEMODULATING AN AMPLITUDE-MODULATED SIGNAL

Abstract A device for demodulating, in a reader, a fundamental signal having a frequency f0 the amplitute of which is modulated by a signal having a frequency fm according to an unknown modulation factor, said modulated fundamental signal being received form a portable object, wherein said device includes a transistor, the grid of which is connected to said modulated fundamental signal (Et) so as to obtain a derivative signal (St) at the output of said transistor having a value given by an equation wherein one term is proportional to a power N of said modulated fundamental signal, N being an integer greater than 1, and a filter designed to select the frequency component fm in the transistor"s output signal.
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Documents:

in-pct-2001-00716-mum-cancelled pages(22-7-2005).pdf

in-pct-2001-00716-mum-claims(15-6-2001).pdf

in-pct-2001-00716-mum-claims(granted)-(29-4-2010).pdf

in-pct-2001-00716-mum-correspondence(23-11-2005).pdf

in-pct-2001-00716-mum-correspondence(ipo)-(3-5-2010).pdf

in-pct-2001-00716-mum-description(complete)-(15-6-2001).pdf

in-pct-2001-00716-mum-description(granted)-(29-4-2010).pdf

in-pct-2001-00716-mum-drawing(15-6-2001).pdf

in-pct-2001-00716-mum-drawing(22-7-2005).pdf

in-pct-2001-00716-mum-drawing(granted)-(29-4-2010).pdf

in-pct-2001-00716-mum-form 1(15-6-2001).pdf

in-pct-2001-00716-mum-form 1(22-7-2005).pdf

in-pct-2001-00716-mum-form 19(18-10-2004).pdf

in-pct-2001-00716-mum-form 2(granted)-(29-4-2010).pdf

in-pct-2001-00716-mum-form 2(title page)-(granted)-(29-4-2010).pdf

in-pct-2001-00716-mum-form 3(15-6-2001).pdf

in-pct-2001-00716-mum-form 3(22-7-2005).pdf

in-pct-2001-00716-mum-form 5(22-7-2005).pdf

in-pct-2001-00716-mum-petition under rule 137(22-7-2005).pdf

in-pct-2001-00716-mum-power of authority(5-10-2001).pdf

in-pct-2001-00716-mum-specification(amended)-(22-7-2005).pdf

in-pct-2001-00716-mum-wo international publication report (23-11-2005).pdf


Patent Number 240216
Indian Patent Application Number IN/PCT/2001/00716/MUM
PG Journal Number 19/2010
Publication Date 07-May-2010
Grant Date 29-Apr-2010
Date of Filing 15-Jun-2001
Name of Patentee A S K
Applicant Address LES BOUILLIDES 15, TRAVERSE DES BRUCS, SOPHIA ANTIPOLIS, F-06560 VALBONNE
Inventors:
# Inventor's Name Inventor's Address
1 SEBASTIEN MORAND 7,PLACE LISNARD, F-06220 VALLAURIS
PCT International Classification Number H
PCT International Application Number PCT/FR00/02982
PCT International Filing date 2000-10-26
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 99/13852 1999-10-28 France