Edwin M Leiby

US Patent:

7653117, Jan 26, 2010

Filed:

Mar 16, 2006

Appl. No.:

11/377491

Inventors:

Edwin Leiby - Avon NY, US
Mark Walter Chamberlain - Honeoye Falls NY, US
Joseph Shaver - Rochester NY, US
Paul Voglewede - N. Chili NY, US

Assignee:

Harris Corporation - Melbourne FL

International Classification:

H04B 1/00

US Classification:

375132

Abstract:

An improved method is provided for decoding data in a frequency hopping communications system. The method includes: monitoring transition points between data bits in a demodulated data stream, where the data bits are transmitted to a receiver over different transmission frequencies; determining a frequency over which data bits are transmitted to the receiver; determining a reliability metric for each frequency over which data bits were received, where the reliability metric is based on transition points of data bits transmitted over a given frequency; and performing a decoding operation using the reliability metric for each frequency over which data bits were received.

US Patent:

20070216549, Sep 20, 2007

Filed:

Mar 16, 2006

Appl. No.:

11/377492

Inventors:

Joseph Shaver - Rochester NY, US
Paul Voglewede - N. Chili NY, US
Edwin Leiby - Avon NY, US
Mark Chamberlain - Honeoye Falls NY, US
Eric Peach - Penfield NY, US

International Classification:

H03M 7/34

US Classification:

341051000

Abstract:

An improved method is provided for identifying a repeated codeword in an incoming bit stream. The method includes: receiving an incoming bit stream having an expected codeword repeated a number of times; determining whether a group of incoming data bits correlates to the expected codeword, where each of the incoming data bits in the group need not match the corresponding data bit of the expected codeword; and determining whether the expected code word is repeated over a sequence of incoming data bits

US Patent:

20070237210, Oct 11, 2007

Filed:

Mar 16, 2006

Appl. No.:

11/377529

Inventors:

Paul Voglewede - N. Chili NY, US
Edwin Leiby - Avon NY, US
Mark Chamberlain - Honeoye Falls NY, US
Patrick Lang - Pittsford NY, US
Fred Kellerman - Webster NY, US
Daniel Stephens - Rochester NY, US

International Classification:

H04B 1/00

US Classification:

375136000

Abstract:

To avoid signal jamming, a method is provided for selecting a dwell channel on a receiver in a frequency hopping communication system. The method includes: measuring a noise level on channels over which a data signal is received at the receiver; selecting a dwell channel based on the estimated noise levels, where the dwell channel having the lowest noise level amongst a group of permissible channels over which to acquire a signal from a transmitter; and tuning the receiver to the selected dwell channel during a search state in which the receiver attempts to synchronize with a transmitter.