 |
|
 |
| |
 |
|
Class Information
Number: 73/900
Name: Measuring and testing > Automatic gain control
Description: Subject matter pertaining to vibration measuring or testing with beamed waves wherein an automatic gain control is provided to vary the gain in the receiving means to compensate for loss of received signal due to conditions, as attenuation by the test body, other than that which is to be measured or indicated.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7426250 |
Automatic gain controller and controlling method thereof |
Sep. 16, 2008 |
| 7274322 |
Systems and methods for automatic gain control for multichannel receivers |
Sep. 25, 2007 |
| 7047832 |
Apparatus for measuring gas exchange |
May. 23, 2006 |
| 5572452 |
Filter with feed-forward AGC |
Nov. 5, 1996 |
| 5481905 |
Transducer circuit having negative integral feedback |
Jan. 9, 1996 |
| 5440935 |
Apparatus for combining transducer output signals |
Aug. 15, 1995 |
| 5230247 |
Method of assessing faults in metal tubes having internal helical ribs |
Jul. 27, 1993 |
| 5063931 |
Method and apparatus for signal dependent gain control |
Nov. 12, 1991 |
| 4852576 |
Time gain compensation for ultrasonic medical imaging systems |
Aug. 1, 1989 |
| 4691571 |
Tissue signature tracking transceiver having upconverted IF amplification |
Sep. 8, 1987 |
| 4676105 |
Tissue signature tracking transceiver |
Jun. 30, 1987 |
| 4578997 |
Time-shaped AGC for ultrasonic liquid level meter of the echo-ranging type |
Apr. 1, 1986 |
| 4545251 |
Electronic scanning type ultrasonic non-destructive testing apparatus |
Oct. 8, 1985 |
| 4513621 |
Ultrasonic test instrument with controllable amplifier |
Apr. 30, 1985 |
| 4452085 |
Method and means for generating time gain compensation control signal for use in ultrasonic scanner and the like |
Jun. 5, 1984 |
| 4451909 |
Ultrasonic wave distance detection system |
May. 29, 1984 |
| 4402231 |
AGC Amplifier for ultrasonic measuring system |
Sep. 6, 1983 |
| 4398261 |
Device for measuring the level of a variable signal with logarithmic conversion |
Aug. 9, 1983 |
| 4378596 |
Multi-channel sonic receiver with combined time-gain control and heterodyne inputs |
Mar. 29, 1983 |
| 4375166 |
Ultrasound examination apparatus comprising a mosaic of transducers of an electrostrictive material |
Mar. 1, 1983 |
| 4356731 |
Method and means for generating time gain compensation control signal for use in ultrasonic scanner and the like |
Nov. 2, 1982 |
| 4248091 |
Ultrasonic pulse-echo apparatus |
Feb. 3, 1981 |
| 4228688 |
Accurate distance amplitude compensation |
Oct. 21, 1980 |
| 4205555 |
Ultrasonic diagnostic apparatus |
Jun. 3, 1980 |
| 4145741 |
Signal processing arrangements |
Mar. 20, 1979 |
| 4140107 |
Echoscope for examination of objects |
Feb. 20, 1979 |
| 4016862 |
Echoscope for examination of objects |
Apr. 12, 1977 |
| 3996792 |
Supersonic wave flaw detecting apparatus |
Dec. 14, 1976 |
| 3964297 |
Ultrasonic inspection apparatus |
Jun. 22, 1976 |
| 3942361 |
Arrangement for testing thick-walled specimens by the ultrasonic pulse-echo method |
Mar. 9, 1976 |
|
|
|
 |
|
 |
|
| |
Randomly Featured Patents |
|
