Research/Patents/US 5180999
US 5180999Tier 1 — UAP Program Assignee

FILTER SYSTEM WITH CONTROLLED AMPLITUDE IN STOPBAND OR PASSBAND

Assignee

Rockwell International

Filed as: ROCKWELL INTERNATIONAL CORPORATION

Filed

Sep 28, 1990

Granted

Jan 19, 1993

Location

El Segundo CA (Aerospace Corp/TRW)

Abstract

A filter system which may be configured either as a stopband (notch) or passband filter having controlled gain and low ripple throughout its stopband or passband. The system includes a filter network which is operative for splitting an input signal spectrum into a pair of complimentary spectrum components and a coupler for proportionately combining these spectrum components in accordance with a prescribed gain factor. The filter network may either comprise a pair of complimentary band reject and band pass filters connected to a common input terminal or a diplexer including identical filters coupled between a splitter and a combiner.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

May 16, 1991

Rescinded

Jul 7, 1992

Duration

1 year, 1 month

Inventor

  • 1RICHARD C. EDWARDS

Sensitive facility: El Segundo CA (Aerospace Corp/TRW)

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