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
Power consumption management in a MIMO transceiver and method for use therewith
System and method of error reporting in a video distribution network
Method of operating a split gate flash memory cell with coupling gate
Analysis, secure access to, and transmission of array images
Zero-copy network and file offload for web and application servers
Controller for flexible and extensible flow processing in software-defined networks
Method and system for checking citations
  Randomly Featured Patents
Vehicle axle
Breast augmentation apparatus and method of use
Soldering machine
Strip of border-held contact elements for a connection device, and a process for forming such contact elements
Removable implanted device
Wiper blade
Reduced-size connector
Device and method for the optical measurement of an optical system, measurement structure support, and microlithographic projection exposure apparatus
Ion sources, systems and methods
Pelletization method for raw royal jelly