Resources Contact Us Home
Browse by Category: Main > Communications
Class Information
Number: 342/364
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Including polarized signal communication transmitter or receiver > Receiver only > Eliptical
Description: Subject matter including the polarization of the signal such that the wave vector for the signal rotates in an elliptical orbit about a point.

Patents under this class:

Patent Number Title Of Patent Date Issued
7330151 Alignment of an elliptical beam of an antenna Feb. 12, 2008
6407702 Method and system for obtaining direction of an electromagnetic wave Jun. 18, 2002
6271790 Communication system Aug. 7, 2001
6181288 Polarization compensating device for antenna within a radome Jan. 30, 2001
6107962 Method for measuring the ellipse axes, wave direction, and wave propagation mode of an elliptically, circularly, or linearly polarized wave Aug. 22, 2000
5950124 Cellular communication system with dynamically modified data transmission parameters Sep. 7, 1999
5712641 Interference cancellation system for global positioning satellite receivers Jan. 27, 1998
5614914 Wireless telephone distribution system with time and space diversity transmission for determining receiver location Mar. 25, 1997
5280286 Surveillance and identification system antennas Jan. 18, 1994
4264908 Adaptive polarization separation Apr. 28, 1981
4090137 System for compensating cross-polarized waves to attenuate crosstalk May. 16, 1978

  Recently Added Patents
Signal conversion control circuit for touch screen and method thereof
Method for providing interactive site map
Nonvolatile semiconductor memory device and method for controlling the same
Hydroxylated amide skin moisturizer
Compounds for the reduction of .beta.-amyloid production
Solid-state imaging device
  Randomly Featured Patents
Methods of operating a magnetic random access memory device and related devices and structures
Fishing lure
Automatically managing objectionable behavior in a web-based social network
Weather-resistant electromagnetic interference shielding for electronic equipment enclosures
DES cipher processor for full duplex interleaving encryption/decryption service
Electronic memory and electronic device provided with such a memory
Display screen with an icon image
Preventing ammonium chloride deposition
Detection circuit to detect input voltage of transformer and detecting method for the same
Electromagnetic rotating apparatus