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Class Information
Number: 708/815
Name: Electrical computers: arithmetic processing and calculating > Electrical analog calculating computer > Particular function performed > Correlation or convolution > Acoustic
Description: Subject matter utilizing compressional wave propagation along or through a medium other than a light modulator.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7475014 |
Method and system for tracking signal sources with wrapped-phase hidden markov models |
Jan. 6, 2009 |
| 6629121 |
Surface acoustic wave-matched filter and differential detector for demodulating spread spectrum signals |
Sep. 30, 2003 |
| 6047306 |
CDMA communication RF signal processing apparatus using SAW |
Apr. 4, 2000 |
| 5962950 |
Compact surface acoustic wave apparatus, spread spectrum signal receiver using the same apparatus for reception of spread spectrum signal, and spread spectrum signal communication system using |
Oct. 5, 1999 |
| 5815055 |
Matched filter with improved synchronous characteristics, and reception device and communication system using the same |
Sep. 29, 1998 |
| 5717274 |
Efficient surface acoustic wave device capable of excitation in plural frequency bands, and signal receiver and communication system utilizing the same |
Feb. 10, 1998 |
| 5675207 |
Surface acoustic waver convolver |
Oct. 7, 1997 |
| 5661358 |
Demodulation apparatus and communication system using the same |
Aug. 26, 1997 |
| 5539687 |
Correlator and communication system using it |
Jul. 23, 1996 |
| 5530410 |
Acoustic frequency mixing devices using potassium titanyl phosphate and its analogs |
Jun. 25, 1996 |
| 5477098 |
Efficient surface acoustic wave device capable of excitation in plural frequency bands, and signal receiver and communication system utilizing the same |
Dec. 19, 1995 |
| 5448126 |
Surface acoustic wave-semiconductor composite device |
Sep. 5, 1995 |
| 5444322 |
Elastic convolver |
Aug. 22, 1995 |
| 5434893 |
Component for a differential transmitter-receiver of signals with direct sequence spread spectrum and the corresponding transmitter-receiver |
Jul. 18, 1995 |
| 5430876 |
Remote procedure callback system and method |
Jul. 4, 1995 |
| 5417114 |
Echo based detecting apparatus employing signal generator and correlator |
May. 23, 1995 |
| 5415045 |
Apparatus and method for detecting flaws in and inspecting an object |
May. 16, 1995 |
| 5374863 |
Surface acoustic wave device, and demodulation device and communication system using the same |
Dec. 20, 1994 |
| 5367216 |
Surface acoustic wave element and communication system using the same |
Nov. 22, 1994 |
| 5336957 |
Surface acoustic wave convolver |
Aug. 9, 1994 |
| 5281882 |
Surface acoustic wave element |
Jan. 25, 1994 |
| 5268859 |
Process for obtaining compensation quantity to compensate the nonuniformity of a surface wave convolver |
Dec. 7, 1993 |
| 5262977 |
Surface acoustic wave convolver |
Nov. 16, 1993 |
| 5249293 |
Computer network providing transparent operation on a compute server and associated method |
Sep. 28, 1993 |
| 5243250 |
Surface acoustic wave convolver device |
Sep. 7, 1993 |
| 5226004 |
Surface acoustic wave filter device |
Jul. 6, 1993 |
| 5200663 |
Surface acoustic wave device provided with output transducer split into a plurality of portions, and communication system using the same |
Apr. 6, 1993 |
| 5189330 |
Surface acoustic wave device |
Feb. 23, 1993 |
| 5187681 |
Controlling apparatus for improving start up time for a convolver |
Feb. 16, 1993 |
| 5185548 |
Surface acoustic wave device with reflected wave at side edges on waveguide suppressed and communication system using the same |
Feb. 9, 1993 |
| 5164628 |
Elastic surface wave convolva having wave width converting means and communication system using same |
Nov. 17, 1992 |
| 5070472 |
Convolver optimum bias circuit |
Dec. 3, 1991 |
| 5065629 |
Ultrasonic insection apparatus |
Nov. 19, 1991 |
| 5056055 |
Coherent surface acoustic wave unique word detector |
Oct. 8, 1991 |
| 5045743 |
Surface acoustic wave device |
Sep. 3, 1991 |
| 5043620 |
Surface acoustic wave convolver and convolution integrator using same |
Aug. 27, 1991 |
| 5033063 |
Surface-acoustic-wave device |
Jul. 16, 1991 |
| 5030930 |
Surface-acoustic-wave convolver |
Jul. 9, 1991 |
| 5003213 |
Surface acoustic wave convolver with plural wave guide paths for generating convolution signals of mutually different phases |
Mar. 26, 1991 |
| 4998261 |
Spread spectrum signal demodulator |
Mar. 5, 1991 |
| 4967113 |
Surface-acoustic-wave convolver |
Oct. 30, 1990 |
| 4965480 |
Surface acoustic wave convolver with two output electrodes of different lengths |
Oct. 23, 1990 |
| 4900969 |
Surface acoustic wave convolver |
Feb. 13, 1990 |
| 4894576 |
Surface-acoustic-wave convolver |
Jan. 16, 1990 |
| 4841470 |
Surface acoustic wave device for differential phase shift keying convolving |
Jun. 20, 1989 |
| 4833637 |
Acousto-optic multi-channel space integrating correlator |
May. 23, 1989 |
| 4809213 |
Two-track convolver operating with acoustic waves and with suppression of self-convolution signals |
Feb. 28, 1989 |
| 4801941 |
Angle of arrival processor using bulk acoustic waves |
Jan. 31, 1989 |
| 4799184 |
Convolver arangement with acoustic waves |
Jan. 17, 1989 |
| 4798988 |
Optimum bias circuit for a convolver |
Jan. 17, 1989 |
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