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:
Sep. 02, 2008
Filed:
Oct. 09, 2003
Eric Desbonnets, Fontaine-Etoupefour, FR;
Frédéric Parillaud, Caen, FR;
Erick Giroux, Herouville Saint Clair, FR;
Eric Desbonnets, Fontaine-Etoupefour, FR;
Frédéric Parillaud, Caen, FR;
Erick Giroux, Herouville Saint Clair, FR;
DSP Group Switzerland AG, Zurich, CH;
Abstract
The invention relates to a demodulator to demodulate frequency-modulated signals FM including a phase locked loop PLL including at least a phase detector, a loop filter and a voltage controlled oscillator function VCO', characterized in that said voltage controlled oscillator function VCO′ has modifiable gain. The invention allows to eliminate drawbacks presented by the conventional use of a complex gain modifiable amplifier at the input of demodulated signal processing means. Application: demodulation of modulated signals: wireless phone, home network.