Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and device for comparing two variable analogue signals










Image Number 3 for United States Patent #5305243.

A device compares two variable analogue signals, e.g. varying in time, such as audio or video signals. The signals, which are either different or identical but shifted in time, are within a predetermined frequency range. The device includes two parallel channels for processing analogue signals. One of the channels introduces a time shift of one signal with respect to the other, the shift being equal to a 1/4 period at the center frequency of the band. Both channels include in series circuits for transforming the analogue signals into binary logic signals, a logic circuit, a summing circuit for establishing a first and second correlation signal. An adder adds the absolute values of the first and second correlation signals to form a third correlation signal that is substantially independent of any time shift between the analogue signals.








 
 
  Recently Added Patents
Personal IP toll-free number
Method and system for utilizing Perovskite material for charge storage and as a dielectric
Optical packet signal transmission device and WDM optical communication network
Tunnel magnetoresistance read head with narrow shield-to-shield spacing
Biological analysis arrangement and approach therefor
Method for drug screening and characterization by calcium flux
System and method for text input with a multi-touch screen
  Randomly Featured Patents
X-ray microscope
Electrical connector assembly tool
Method of providing extended life expectancy for components of boiling water reactors
Articulable joint
Method of communication for a computer using packet switches for internal data transfer
Notepaper dispenser
Vertical clothes holder
Electrically conductive polyester molding composition having a high quality surface finish
Chick processing apparatus
Lighthead assembly