Research/Patents/US 4939480
US 4939480

METHOD AND APPARATUS FOR AMPLIFYING SIGNALS

Assignee

SANTA BARBARA RESEARCH CENTER, GOLETA, CA. A CA. CORP.

Filed

Nov 16, 1987

Granted

Jul 3, 1990

Location

GOLETA CA US

Abstract

An method and apparatus for amplifying signals from an elemental detector in a detector array (10) is disclosed. The apparatus comprises a preamplifier (26) for amplifying the output of the elemental detector. The preamplifier comprises first differential amplifier (170) and a circuit (174) for lowering the gain of the first differential amplifier. The apparatus further comprises a postamplifier (28) for amplifying the output of the preamplifier (26). The postamplifier (28) comprises a second differential amplifier (370) and a circuit (374) for lowering the gain of the second differential amplifier.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Nov 14, 1988

Rescinded

Jan 26, 1990

Duration

1 year, 2 months

Inventor

  • 1WILLIAM H. FRYE

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records