Mark Alfred Willi

US Patent:

8614603, Dec 24, 2013

Filed:

Jun 9, 2010

Appl. No.:

12/796937

Inventors:

Russell D. Wyse - Center Point IA, US
Mark A. Willi - Marion IA, US

Assignee:

Rockwell Collins, Inc. - Cedar Rapids IA

International Classification:

H03F 3/45

US Classification:

330261, 330253, 330277, 4552341

Abstract:

An auto leveling circuit suitable for use in an RF receiver. The auto leveling circuit comprises a plurality of automatic gain control (AGC) circuits each having at least one amplifier stage to amplify an RF signal according to at least two incrementally discrete levels. In order to selectively control gain, the AGC circuits further comprise peak detectors to detect the amplitude of the amplified RF signal and comparators to compare the amplitude of the RF signal with a threshold value indicative of a saturation point of the amplifiers.

US Patent:

8644787, Feb 4, 2014

Filed:

Jun 9, 2010

Appl. No.:

12/796980

Inventors:

Russell D. Wyse - Center Point IA, US
Mark A. Willi - Marion IA, US

Assignee:

Rockwell Collins, Inc. - Cedar Rapids IA

International Classification:

H04B 1/26

US Classification:

455323, 455334, 455326, 455296

Abstract:

A method of separating individual channels from a composite or broadband RF signal that carries the channels on respective frequencies. An RF signal is received from an antenna at a high impedance input port of a plurality of mixers. A local oscillator (LO) signal is received at a high impedance port of the plurality of mixers. The plurality of mixers separately mix the RF signal to produce a plurality of common intermediate frequency (IF) signals. The plurality of common IF signals are output to filters corresponding to the individual isolated channels then processed to derive their information content.

US Patent:

8576127, Nov 5, 2013

Filed:

Jul 29, 2011

Appl. No.:

13/193842

Inventors:

Jeremiah D Wolf - Marion IA, US
Lee M Paulsen - Cedar Rapids IA, US
Mark A Willi - Marion IA, US
James B West - Cedar Rapids IA, US

Assignee:

Rockwell Collins, Inc. - Cedar Rapids IA

International Classification:

H01Q 1/24

US Classification:

343702, 343876

Abstract:

The present invention is directed to antenna system embodiments which allow for hand-held, ultra-wideband (UWB) multi-antenna operation to be realized within the severe size constraints necessary for Department of Defense (DOD) hand-held missions. Further, the antenna system embodiments disclosed herein provide a miniature UWB multiple antenna solution for multiple-input and multiple-output (MIMO) and radiation pattern null steering suitable for hand-held soldier radios.