James S Roth

US Patent:

6826371, Nov 30, 2004

Filed:

Jun 15, 2000

Appl. No.:

09/595285

Inventors:

Jeffery S. Bauch - Redondo Beach CA
Todd E. Humes - Newbury Park CA
James A. Roth - Torrance CA

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

H04B 1004

US Classification:

398188, 398183, 398202, 398214, 398198

Abstract:

A communication system and more particularly to a variable rate differential phase shift keying (DPSK) communication system with minimal hardware that does not have power or performance penalties associated with known DPSK modulation systems is disclosed. The DPSK modulation system in accordance with the present invention includes a transmitter, which includes a carrier signal source, a phase modulator and a DPSK encoder for modulating a carrier signal. The modulated carrier signals may be amplified, for example, in optical communication systems by a rare earth element doped fiber amplifier. The signals are continuously transmitted to a multi-rate receiver through a communication channel, for example, free space. The multi-rate receiver includes a single demodulator, for example, a single optical interferometer, used for multiple integer sub-harmonic data rates which demodulates the modulated signal. The demodulated signals are detected, for example, in optical communication systems by an arrangement of photodiodes, and the detected signals are applied to, for example, a clock and data recovery circuit that is tuned as a function of data rate, for example, by way of a switched filter circuit.

US Patent:

7070316, Jul 4, 2006

Filed:

Jul 1, 2003

Appl. No.:

10/610661

Inventors:

James A. Roth - Palos Heights IL, US

International Classification:

B28C 5/08

US Classification:

366 64, 366 48, 366242, 366347

Abstract:

A mortar mixing apparatus for simplifying mortar mixing that can be used with a conventional wheelbarrow comprises a rigid planar safety shield having a top side and a bottom side. A mixer motor is connected to the safety shield top side. A mixing blade is rotatably connected to the safety shield bottom side. The mixing blade is drivingly connected to the mixer motor.

US Patent:

7270891, Sep 18, 2007

Filed:

Nov 17, 2004

Appl. No.:

10/990731

Inventors:

James A. Roth - Redondo Beach CA, US
James T. Hall - Torrance CA, US
Dennis G. Neal - Rancho Palos Verdes CA, US
Craig R. Wilkinson - Torrance CA, US
Steven Lai - La Verne CA, US
Mark W. Johnson - La Canada Flintridge CA, US

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

C23C 14/14
C23C 14/20
C23C 14/34
B32B 15/00
B32B 15/08

US Classification:

428640, 4284111, 428457, 2041921

Abstract:

A passive thermal control blanket and a method for its manufacture, the blanket including a plastic substrate on which is deposited a film that is a homogeneous mixture of silicon and germanium, thereby combining the excellent reflective and electrostatic discharge properties of germanium with the superior adhesion and corrosion resistance properties of silicon. The uniform mixture is preferably obtained by sputtering the two materials simultaneously onto the substrate, using either separate targets, a single mosaic target, or a single composite target.

US Patent:

20090260731, Oct 22, 2009

Filed:

Apr 18, 2008

Appl. No.:

12/148413

Inventors:

William Joel Roth - Las Vegas NV, US
James Noel Roth - Las Vegas NV, US

International Classification:

A45C 11/00

US Classification:

150147

Abstract:

A smart card holder or passport holder has two sides sealed together at three edges to leave an interior space dimensioned and configured to hold a smart card or passport. The sides have multiple layers: a first layer of dielectric material which substantially covers entirety of both sides, a second layer of structural material to add strength, and a third layer of soft material which protects any magnetic stripe on a card or the like from the dielectric material. The sides may be sealed by means of RF welding in order to minimize gaps between the sides. In use, the device prevents unauthorized RF remote access to the smart card chip or passport chip.

US Patent:

D4269950, Jun 27, 2000

Filed:

Jun 1, 1999

Appl. No.:

D/105599

Inventors:

James Edward Roth - Los Angeles CA
Melinda Jane Shafran - Reseda CA

Assignee:

Moen Incorporated - North Olmsted OH

International Classification:

0604

US Classification:

D 6546

US Patent:

D4243447, May 9, 2000

Filed:

Jun 1, 1999

Appl. No.:

D/105598

Inventors:

James Edward Roth - Los Angeles CA
Melinda Jane Shafran - Reseda CA
Eric D. Green - Cleveland Heights OH
Shannon E. Mason - Avon Lake OH
Eduardo Milrud - Chagrin Falls OH

Assignee:

Moen Incorporated - North Olmsted OH

International Classification:

0707

US Classification:

D 6523

US Patent:

D4179943, Dec 28, 1999

Filed:

Jan 4, 1999

Appl. No.:

D/098655

Inventors:

James Edward Roth - Los Angeles CA
Melinda Jane Shafran - Reseda CA

Assignee:

Creative Specialties, Inc. - Sylmar CA

International Classification:

0707

US Classification:

D 6546

US Patent:

D4232674, Apr 25, 2000

Filed:

Jun 1, 1999

Appl. No.:

D/105601

Inventors:

James Edward Roth - Los Angeles CA
Melinda Jane Shafran - Reseda CA
Eric D. Green - Cleveland Heights OH
Shannon E. Mason - Avon Lake OH
Eduardo Milrud - Chagrin Falls OH

Assignee:

Moen Incorporated - North Olmsted OH

International Classification:

0707

US Classification:

D 6540