Humphrey M Barlow

US Patent:

20020130715, Sep 19, 2002

Filed:

May 7, 2002

Appl. No.:

10/139373

Inventors:

Lewis Naron - Baton Rouge LA, US
Humphrey Barlow - Vicksburg MS, US
Clifford Grey - Vicksburg MS, US

International Classification:

H03G003/20

US Classification:

330/002000, 330/129000

Abstract:

Provided is a system and method for concurrently adjusting parameters of a system incorporating separate devices. In a preferred embodiment, a series of amplifiers used in an instrumentation system are able to be adjusted and calibrated concurrently via a simple operation of an unskilled operator. One option provides for this adjustment to occur remotely from the devices.

US Patent:

20020070797, Jun 13, 2002

Filed:

Dec 7, 2000

Appl. No.:

09/730566

Inventors:

Clifford Grey - Vicksburg MS, US
Lewis Naron - Tallulah LA, US
Humphrey Barlow - Vicksburg MS, US

International Classification:

H03G003/20

US Classification:

330/002000, 330/133000

Abstract:

An apparatus for conditioning an electronic signal that includes a number of signal amplifiers sequentially arranged from a first amplifier to a final amplifier. There is also a microcontroller/microcomputer. A balance circuit is interposed between the first amplifier and the microcontroller/microcomputer, and a calibration step circuit is interposed between the microcontroller/microcomputer and a second amplifier. A digital to analog converter (DAC) is interposed between the microcontroller/microcomputer and each of the amplifiers.