Michael A Gregg

US Patent:

7194663, Mar 20, 2007

Filed:

Nov 18, 2003

Appl. No.:

10/716913

Inventors:

Mitchell S. Fletcher - Glendale AZ, US
Peter G. Alejandro - Mesa AZ, US
Randall H. Black - Glendale AZ, US
Michael R. Gregg - Peoria AZ, US
Victor S. Revelle - Glendale AZ, US

Assignee:

Honeywell International, Inc. - Morristown NJ

International Classification:

G06F 11/00

US Classification:

714 43

Abstract:

Method and apparatus are provided for preventing faulty commercial-off-the-shelf (COTS) peripherals or I/Os from disabling the bus to which they are connected. The apparatus has isolators coupled to the bus and the I/Os. A controller is coupled between the interfaces, a processor and memory, operating such that an I/O cannot transfer data to the bus without permission from the bus. Isolation memory keeps I/O and bus messages separate. I/O messages are checked before being sent to the bus. The method comprises: determining if there is a message for the peripheral, temporarily storing the message, determining if the message is for output or input, and if for output, sending it to the peripheral, and if for input, requesting and receiving it from the peripheral, temporarily storing and checking it, and transferring it to the bus only if valid. This prevents a failed I/O or peripheral from disabling the bus.

US Patent:

8054208, Nov 8, 2011

Filed:

Mar 30, 2010

Appl. No.:

12/750341

Inventors:

Mitch Fletcher - Glendale AZ, US
Jef Sloat - Phoenix AZ, US
Michael R. Gregg - Sun City AZ, US

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

H03M 1/00

US Classification:

341141, 341139, 341155

Abstract:

Systems and apparatus are provided for interfacing a digital controller with an analog input means. The system comprises a digital controller with the input of the digital controller coupled to the output of the analog-to-digital converter. The system further comprises a digital-to-analog converter coupled to an analog interface circuit. The analog interface circuit comprises a reconfigurable RC network switchably coupled to a first amplifier or to a second amplifier. The analog interface circuit further comprises a third amplifier having an input being coupled to an output of the second amplifier and the output of the third amplifier being coupled to the one or more input signal paths to the first amplifier.

US Patent:

20110264834, Oct 27, 2011

Filed:

Apr 27, 2010

Appl. No.:

12/768448

Inventors:

Mitch Fletcher - Glendale AZ, US
Jef Sloat - Phoenix AZ, US
Michael R. Gregg - Sun City AZ, US

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

G06F 13/00

US Classification:

710104

Abstract:

Systems and apparatus are provided for a reconfigurable, multi-purpose input/output (I/O) interface. The system comprises a comparator coupled to a means for signal generation. The system further comprises a switch fabric configured to reconfigure the I/O circuit in real time to perform a variety of signal processing, signal generation and built-in-test functions.