Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Quadrature signal conversion device










Image Number 4 for United States Patent #5764171.

A receiver including two sigma delta modulators used to convert a pair of analog quadrature signals into digital quadrature signals. In such sigma delta modulators the quantization noise is shifted into a frequency region in which no signal is present. A cross coupling between the filters is provided to improve the noise reduction without increasing the order of the filters. By providing the cross coupling, it is possible to obtain complex poles and zeros in the noise transfer function which do not have to appear in complex conjugate pairs which results in an increase of the noise suppression in a specified frequency range.








 
 
  Recently Added Patents
Titanium compounds and complexes as additives in lubricants
Method of measuring a displacement amount for an automobile suspension assembly
Three-dimensional holographic display using active shutter
Nonvolatile semiconductor memory device and method of manufacturing the same
Di and tri- substituted oxathiazine derivatives, method for the production, method for the production thereof, use thereof as medicine and drug containing said derivatives and use thereof
Reflective non-invasive sensor
Adaptive contact window wherein the probability that an answering user/expert will respond to a question corresponds to the answering users having response rates that are based on the time of
  Randomly Featured Patents
Sensing-measuring device for continuous determination of cavitation in dynamic pumps
Soft set running tool
Microscope apparatus having an objective displacement detection system
1-Oxa-2-oxo-3-r-3-aza-5-z-cyclopentane derivatives
Method for the manufacture of designed knitwear on circular stocking knitting and knitting machines
Cathodic protection coating composition
Contactless relay
Architectural shape
Vitreous filler for plastic materials and resins and method for obtaining same
Materials and methods to increase peptide chain expression