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. 01, 2003
Filed:
Aug. 01, 2001
Applicant:
Inventors:
William Redman-White, Los Catos, CA (US);
Simon D. Bramwell, Romsey, GB;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M 1/34 ;
U.S. Cl.
CPC ...
H03M 1/34 ;
Abstract
An arrangement for generating an error signal representing the differences between an input signal voltage level (xp , xn ) and an estimated value (rp, rn) for the input signal voltage level comprises first (T T ) and second (T T ) transconductors and a differencing circuit (T T T T ) which forms the modulus of the difference between the outputs of the transconductors. The error signal is converted into a probability signal by subtracting the error signal from a constant signal ( ) to produce a signal at the output ( ) which is a maximum when the input voltage level and estimated voltage level are equal.