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Class Information
Number: 367/121
Name: Communications, electrical: acoustic wave systems and devices > Distance or direction finding > With beam steering, scanning, or focussing > By electrical means
Description: Subject matter wherein the directional characteristics are varied or concentrated by varying some functional characteristic of the electrical circuitry associated with the transducer.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7289586 |
Signal processing apparatus and method |
Oct. 30, 2007 |
| 7109918 |
Nonlinear beam forming and beam shaping aperture system |
Sep. 19, 2006 |
| 6741713 |
Directional hearing device |
May. 25, 2004 |
| 6540677 |
Ultrasound transceiver system for remote operation through a minimal number of connecting wires |
Apr. 1, 2003 |
| 6192134 |
System and method for a monolithic directional microphone array |
Feb. 20, 2001 |
| 6192006 |
Device for and a method of determining the angle of incidence of a received signal and a scanning sonar |
Feb. 20, 2001 |
| 6154552 |
Hybrid adaptive beamformer |
Nov. 28, 2000 |
| 6052335 |
Multiple-frequency sonar system |
Apr. 18, 2000 |
| 6049607 |
Interference canceling method and apparatus |
Apr. 11, 2000 |
| 5825898 |
System and method for adaptive interference cancelling |
Oct. 20, 1998 |
| 5627799 |
Beamformer using coefficient restrained adaptive filters for detecting interference signals |
May. 6, 1997 |
| 5504716 |
Passive sonar transducer arrangement |
Apr. 2, 1996 |
| 5457662 |
Process and device for locating noise emitters with an antenna consisting of passive acoustic buoys |
Oct. 10, 1995 |
| 5253221 |
Null steering device |
Oct. 12, 1993 |
| 5047993 |
Detection and classification for multi-beam sonar systems |
Sep. 10, 1991 |
| 4980870 |
Array compensating beamformer |
Dec. 25, 1990 |
| 4970464 |
Linear position-displacement magnetostrictive transducer having multiple cylindrical electromagnets for generating flux, each electromagnet having a centered passageway for relative travel alo |
Nov. 13, 1990 |
| 4758999 |
Systolic architectures for sonar processing |
Jul. 19, 1988 |
| 4741038 |
Sound location arrangement |
Apr. 26, 1988 |
| 4530076 |
Frequency domain non-linear signal processing apparatus and method for discrimination against non-Gaussian interference |
Jul. 16, 1985 |
| 4350917 |
Frequency-controlled scanning of ultrasonic beams |
Sep. 21, 1982 |
| 4280203 |
Sonar beam forming utilizing the chirp Z-transform |
Jul. 21, 1981 |
| 4254417 |
Beamformer for arrays with rotational symmetry |
Mar. 3, 1981 |
| 4245333 |
Beamforming utilizing a surface acoustic wave device |
Jan. 13, 1981 |
| 4244037 |
Two dimensional imaging using surface wave acoustic devices |
Jan. 6, 1981 |
| 4228531 |
Automatic underwater null steering |
Oct. 14, 1980 |
| 4187490 |
Range determining system |
Feb. 5, 1980 |
| 4179682 |
Tilt compensation for acoustic transducing system |
Dec. 18, 1979 |
| 4176339 |
Propagation sampled acoustic line array |
Nov. 27, 1979 |
| 4158843 |
Automatic direction finder antenna preamplifier processor |
Jun. 19, 1979 |
| 4112411 |
Device for echography by means of focussed ultrasonic beams |
Sep. 5, 1978 |
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