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:
Jan. 04, 2005
Filed:
Jun. 05, 2002
Applicant:
Engel Roza, Eindhoven, NL;
Inventor:
Engel Roza, Eindhoven, NL;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M 138 ;
U.S. Cl.
CPC ...
Abstract
A pipeline AD converter comprising a cascade of AD-converter stages, whereby the sampling noise generated by a former stage of the cascade is AD-converted by the next stage in the cascade and the digital signals of the stages are combined to generate an error-reduced digital representation of the analog input signal. Applying the input signal to a synchronous ΣΔ modulator and to an asynchronous ΣΔ modulator and comparing the output signals of the ΣΔ modulators generates the sampling noise.