Robert L Macleod

US Patent:

6831574, Dec 14, 2004

Filed:

Oct 3, 2003

Appl. No.:

10/678203

Inventors:

Diane G. Mills - Wilmington MA
Robert B. MacLeod - Nashua NH
Thomas P. McElwain - Merrimack NH
Dianne E. Egnor - Nashua NH

Assignee:

BAE Systems Information and Electronic Systems Integration INC - Nashua NH

International Classification:

H03M 700

US Classification:

341 50, 714786, 714752

Abstract:

A Turbo multi-user detector (MUD) processing system in multiple access communications channels that decreases the likelihood of improper decoding of the final values of interest, thereby allowing for a reduction in the number of iterations performed and lowers complexity without negatively impacting performance. The present invention comprises a multi-user detector serially concatenated to two decoder sections in such a manner that data flows iteratively from the MUD and to each detector stage and back to the MUD to correct for errors.

US Patent:

7126890, Oct 24, 2006

Filed:

Sep 19, 2003

Appl. No.:

10/497557

Inventors:

Rachel E. Learned - Waltham MA, US
Robert B. MacLeod - Nashua NH, US

Assignee:

Bae Systems Information and Electronic Systems Integration INC - Nashua NH

International Classification:

G11B 7/00

US Classification:

369 4432, 369 4428, 369 5333

Abstract:

Techniques for reading data from a storage medium () having a high track density prone to adjacent track interference are disclosed. One or more sensing elements () are used to extract data stored on adjacent tracks. Multiuser detection () is then used to detect/decode a single track that is closely spaced to its neighboring tracks, resolve interference from adjacent tracks, or to simultaneously detect/decode multiple adjacent closely packed tracks.

US Patent:

7236546, Jun 26, 2007

Filed:

Sep 10, 2003

Appl. No.:

10/659567

Inventors:

Dianne E Egnor - Somerville MA, US
Robert B MacLeod - Nashua NH, US

Assignee:

Bae Systems Information and Electronic Systems Integration Inc. - Nashua NH

International Classification:

H03D 1/00
H04L 27/06

US Classification:

375341, 375262, 375340, 714786, 714794, 714795

Abstract:

A multiple access processing system for a plurality of users employing a multiuser detector processing partial blocks of data within a window. The multiuser detector processes the data for all users within a processing window and is interrupted at successive frame boundaries. Once an entire block is processed by the MUD, the blocks for that user are decoded and the processing continues.

US Patent:

7269223, Sep 11, 2007

Filed:

Apr 16, 2003

Appl. No.:

10/414738

Inventors:

Rachel E. Learned - Waltham MA, US
Matthew A. Taylor - Weare NH, US
Robert B. MacLeod - Nashua NH, US

Assignee:

BAE Systems Information and Electronic Systems Integration Inc. - Nashua NH

International Classification:

H04L 27/00

US Classification:

375259, 375267, 342361

Abstract:

The present invention is a digital communication method that increases the overall throughput of a Multiuser Detection (MUD)-based co-channel multiple access (MA) system in terms of the total number of bits transmitted through the shared medium by all the users of the MA system if signals are allowed to interfere. The total number of users can be increased if more dimensions are used for assigning the transmitted signals and the same dimensions are measured at the receiver. Specifically, the present invention does not require any coordination among transmitters but simply requires a transmitter to send its signal with either a randomly chosen polarization ellipse, or an assigned or randomly chosen amplitude level.

US Patent:

20040037202, Feb 26, 2004

Filed:

Sep 20, 2002

Appl. No.:

10/251187

Inventors:

Karl Brommer - Hampton Falls NH, US
Robert MacLeod - Nashua NH, US
Michael Schmidt - Hollis NH, US

International Classification:

G11B007/00

US Classification:

369/094000, 369/095000

Abstract:

A processing scheme for digital storage media using multi-user detection to separate tracks of data or remove interference from neighboring tracks. In one embodiment, data is written on a plurality of tracks positioned sufficiently close together so that multiple tracks are detected simultaneously by the read access sensor. Upon scanning the surface for data, the read element simultaneously receives the data signals from a plurality of tracks. Joint detection signal processing resolves the interference and data bits from the multiple sensed tracks, enabling closer packing of data with minimal guard space.

US Patent:

39506380, Apr 13, 1976

Filed:

Nov 14, 1973

Appl. No.:

5/415836

Inventors:

S. Leonard Kent - Andover MA
Thomas M. Lemons - Marblehead MA
Robert B. MacLeod - Marblehead MA

Assignee:

Lam Incorporated - Wakefield MA

International Classification:

F21M 700
F21M 1300
F21V 700
F21S 106

US Classification:

240 411

Abstract:

A luminaire for use with high intensity discharge lamps so that such lamps can be used in rooms of average height even as low as 8 or 9 feet. The luminaire includes a suspended bowl-shaped reflector that opens towards the ceiling and prevents glare and direct viewing of the light source.

Address:

936 Flamango Ct E, West Palm Bch, FL 33406

VIN:

JHLRE38517C029805

Make:

HONDA

Model:

CR-V

Year:

2007