Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Estimator of direction of desired signal










Image Number 2 for United States Patent #5841400.

A desired signal is received at first and second antennas. Output signals of the first and second antennas are orthogonal-detected by first and second signal conversion circuits and thereby converted into first and second baseband signals. A complex conjugation circuit generates a complex conjugation signal by calculating a complex conjugation of the second baseband signal. The first baseband signal and the complex conjugation signal are multiplied by a multiplier. A direction estimation circuit estimates a direction of the desired signal by effecting an inverse tangent calculation and an inverse cosine calculation on an output signal of the multiplier.








 
 
  Recently Added Patents
Change management automation tool
Solid-state imaging apparatus
Detection system and method for mobile device application
Device to facilitate moving an electrical cable of an electric vehicle charging station and method of providing the same
OFDM control signaling in the presence of timing asynchronization in a peer-to-peer network
Method for distributing advertisements to client devices using an obscured ad monitoring function
Trimming circuit and semiconductor device
  Randomly Featured Patents
Controller of LED lighting to control the maximum voltage of LEDS and the maximum voltage across current sources
Pneumatic outlet for receiving female hose connections of different diameters
Name your prize game playing methodology
Pyrazole compounds useful as protein kinase inhibitors
Cellular phone
Container closure for retaining an additive material
Discharge tube
Interface for private branch exchange
Compact battery charger
Pipette tip ejector