John L Locke

US Patent:

6356235, Mar 12, 2002

Filed:

Sep 20, 1999

Appl. No.:

09/399264

Inventors:

David R. Laidig - Phoenix AZ
John W. Locke - Mesa AZ

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01Q 302

US Classification:

343700MS, 343846, 343848, 343849, 343893

Abstract:

A ground-based antenna assembly ( ) is provided that includes an assembly base ( ) defining a substantially horizontal plane ( ) and configured for attachment to a residential, commercial or governmental structure. The ground-based antenna ( ) also includes a plurality of planar receiving panels ( ) having a circular and/or elliptical shape. The plurality of planar receiving panels ( ) are radially-spaced about the assembly base ( ) and tilted with respect to the substantially horizontal plane ( ) for a receiving field-of-view. The ground-based antenna assembly ( ) further includes a plurality of planar transmitting panels ( ) having a circular and/or elliptical shape. The plurality of planar transmitting panels ( ) are radially-spaced about the assembly base ( ) and tilted with respect to the substantially horizontal plane ( ) for a transmitting field-of-view. In addition, the plurality of transmitting panels ( ) are radially offset and nested with respect to the plurality of receiving panels ( ).

US Patent:

20030011515, Jan 16, 2003

Filed:

Jul 16, 2001

Appl. No.:

09/905115

Inventors:

Keith Warble - Chandler AZ, US
John Locke - Mesa AZ, US

Assignee:

MOTOROLA, INC. - Schaumburg IL

International Classification:

H01Q003/22

US Classification:

342/372000

Abstract:

An apparatus for effecting transfer of electromagnetic signals intermediate a host device and a medium adjacent to the antenna includes: (a) a plurality of antenna elements arranged in an array in facing relation with a target sector; (b) a phase adjusting unit coupled with selected antenna elements and with the host unit for transferring internal signals intermediate the host device and the antenna elements; and (c) a control unit coupled with the phase adjusting unit. The phase adjusting unit cooperates with the control unit to adjust at least one parameter relating to the electromagnetic signals intermediate the host device and the antenna elements. The adjusting is carried out to cause the antenna elements to address the sector in a timed space-sharing pattern. At least two of the plurality of antenna array, the phase adjusting unit and the control unit are implemented in a unitary structure borne upon a single silicon substrate.

US Patent:

48112712, Mar 7, 1989

Filed:

Jun 24, 1987

Appl. No.:

7/065545

Inventors:

Alan C. Svoboda - Tempe AZ
John W. Locke - Tempe AZ
David C. Campbell - Chandler AZ

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

G06F 15336

US Classification:

36472801

Abstract:

A convolving element which processes sixteen 4-bit samples but may be expanded to convolve both a larger number of samples and a larger number of bits per sample. The expansion occurs through interconnections of identical convolving elements. A selective inversion element inverts particular ones of the convolved samples under the control of a previously loaded binary code. The selective inversion element additionally minimizes interconnections and therefore input/output terminals of the convolving element, by permitting carries for each sample convolved to be accumulated rather than to propagate to more significant elements.

US Patent:

61115428, Aug 29, 2000

Filed:

Apr 6, 1998

Appl. No.:

9/055453

Inventors:

Kevin Kristopher Day - Phoenix AZ
Richard Scott Torkington - Mesa AZ
John Wesley Locke - Tempe AZ

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01Q 300

US Classification:

342359

Abstract:

A user terminal (110) includes a rotating electronically steerable antenna system (210) which combines coarse mechanical beam steering with fine electronic beam steering to provide full hemispherical coverage and enable hand-offs in a satellite communication system. The antenna system (210) comprises at least one antenna unit (and preferably two antenna units) including a mechanically rotatable base (330), an antenna holder (320) coupled to the mechanically rotatable base, and two electronically steerable antenna subunit (310) mounted on the antenna holder. Antenna system (210) also includes an antenna unit controller (260) adapted to control rotation of the mechanically rotatable base (330).

US Patent:

61753408, Jan 16, 2001

Filed:

May 4, 1998

Appl. No.:

9/071043

Inventors:

Keith Andrew Olds - Mesa AZ
Carl Myron Wagner - Higley AZ
John Wesley Locke - Tempe AZ

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01Q 2100

US Classification:

343893

Abstract:

A hybrid geostationary and low earth orbit (LEO) ground station antenna provides a geostationary receive antenna (30) which generates a narrow receive antenna beam for use with geostationary satellites. The ground station antenna can be either manually positioned so that the normal boresight of the antenna is directed toward the geostationary satellite serving the subscriber, or may be positioned using a cradle (170) which provides motion in the pitch, roll, and yaw axes. The ground station antenna also includes a LEO receive antenna (40) and a LEO transmit antenna (50) which receive which communicate with LEO satellites by way of wider beam, lower gain antenna beams. The geostationary receive antenna (30) is used in conjunction with the LEO satellites and during operations which involve communication with both types of satellites.

US Patent:

59232897, Jul 13, 1999

Filed:

Jul 28, 1997

Appl. No.:

8/901745

Inventors:

Kenneth Vern Buer - Gilbert AZ
John Wesley Locke - Tempe AZ
R. William Kreutel - Redmond WA
Paul Adrian Chiavacci - Stoneham MA
Daniel Francis DiFonzo - Rockville MD

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01Q 326

US Classification:

342373

Abstract:

A modular phased array antenna for the formation of simultaneous independently steerable multiple beams, the modular phased array antenna comprising a modular array including a plurality of sub-array modules combined together in close proximity, each one of the plurality of sub-array modules including a plurality of input modules, a layer of a plurality of radiating antenna elements, a plurality of stacked beamformers arranged in series and each connected to one of the plurality of input modules and to the plurality of radiating antenna elements in beam communication.

US Patent:

58120890, Sep 22, 1998

Filed:

Dec 23, 1996

Appl. No.:

8/772646

Inventors:

John Wesley Locke - Tempe AZ

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01Q 322

US Classification:

342373

Abstract:

A network (26) for feeding a planar array of radiating antenna elements using row beamformers (28) and column beamformers (30) is made to project multiple contiguous antenna beams in a triangular pattern (22). The row beamformers (28) couple to the column beamformers (30). Phase shifting networks (46) are interposed between the row beamformers (28) and column beamformers (30) to apply a phase slope that distributes up to 180. degree. of phase shift across alternating rows of row beamformers (28).

US Patent:

61409766, Oct 31, 2000

Filed:

Sep 7, 1999

Appl. No.:

9/390987

Inventors:

John W. Locke - Mesa AZ
William J. Haber - Tempe AZ
Paul A. Chiavacci - Hopkington MA

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01Q 2100

US Classification:

343853

Abstract:

An array antenna (10) having a plurality of antenna elements (12) keeps only a subset of elements active during normal antenna operation. When a failure of one of the active elements in the array (10) is detected, one of the previously inactive elements (46) is activated to operate as a replacement for the failed element (50). The number of elements that are active during normal operation is selected to achieve a level of antenna performance required by an underlying antenna application. Thus, a desired level of antenna performance is maintained during the life of the array antenna (10) without the consumption of excess power by spare elements in the antenna. Redistributions of inactive element locations are periodically performed during the life of the array antenna (10) to enhance antenna performance in light of failed element locations.