Dennis E Robbins

US Patent:

6510567, Jan 28, 2003

Filed:

Aug 16, 2001

Appl. No.:

09/930025

Inventors:

Dennis L. Robbins - Bedford TX 76021

International Classification:

A61G 714

US Classification:

5 861, 5 811, 2803041, 297DIG 4

Abstract:

A folding wheel chair assembly has at least one fold-down platform that permits the person on the seat to be moved laterally to another seat. The fold-down platform is on a mounting rod that folds upward and them may be turned to a position behind the wheel chair set out of the way when the wheel chair is being moved from one position to another. There may be a fold-down platform on each side of the wheel chair so that a person maybe moved from the wheel chair from either side. The wheel chair may include an adjustment device to raise or lower the position of the chair seat.

US Patent:

8520550, Aug 27, 2013

Filed:

Nov 2, 2012

Appl. No.:

13/667794

Inventors:

Oren E. Eliezer - Plano TX, US
Dennis I. Robbins - Richardson TX, US
Aditya Awasthi - Richardson TX, US
Zahid Islam - Dallas TX, US
Ahmad Gomaa - Qaliobiah, EG

Assignee:

XW LLC - Dallas TX

International Classification:

G01R 31/08

US Classification:

370252, 370329

Abstract:

Various embodiments of a method of mitigating interference in an OFDMA cellular network and a user terminal incorporating various of the embodiments. In one embodiment, the method includes: (1) selecting at least one dominant interfering signal, (2) generating estimates of a desired signal and the at least one dominant interfering signal, (3) jointly deciding based on the estimates such that an energy of a residual error is reduced and (4) mitigating interference based on the estimates.

US Patent:

8545387, Oct 1, 2013

Filed:

Nov 4, 2008

Appl. No.:

12/290810

Inventors:

Lewis Harrison - Arlington TX, US
Stanley Dean Hall - Colleyville TX, US
Dennis Robbins - Richardson TX, US

Assignee:

Corinnova Incorporated - Houston TX

International Classification:

A61B 17/00

US Classification:

600 37

Abstract:

A method and related apparatus for the minimally invasive implantation about a heart of at least a deployable device such as a heart assist device or cardiac compression device. The method comprises the steps of performing a left thoracotomy or subxiphoid incision; obtaining access to the pericardial sac; making a generally linear incision in the pericardial sac; positioning an assembly having an insertion aperture member with an upper ring and a lower ring or flange and insertion tube having therein a deployable device. The apparatus of the present invention includes an insertion aperture member having an upper ring and a lower ring or flange; and an insertion tube having therein a deployable device adapted to be deployed from the insertion tube inside the pericardial sac via a generally linear incision.

US Patent:

8588286, Nov 19, 2013

Filed:

Apr 14, 2011

Appl. No.:

13/086517

Inventors:

Naofal M. Al-Dhahir - Plano TX, US
Oren E. Eliezer - Plano TX, US
Jaiminkumar A. Mehta - Richardson TX, US
Dennis I. Robbins - Richardson TX, US
Aaron M. Lancour - Amarillo TX, US
Aditya Awasthi - Richardson TX, US

Assignee:

XW, LLC - Dallas TX

International Classification:

H04B 1/38

US Classification:

375222, 375220, 375296

Abstract:

A method of cancelling alien noise in coordinated DSL lines, a method of smoothing an alien noise covariance estimate, and a processor and modem for cancelling alien noise in coordinated DSL lines. In one embodiment, the method of cancelling alien noise includes: (1) estimating alien noise vectors for at least some training symbols, (2) arranging the alien noise vectors in a matrix dimensioned for a number of coordinated DSL lines, (3) orthonormally transforming the matrix into a lower-triangular matrix and (4) computing alien noise prediction filters from the lower-triangular matrix.

US Patent:

20130230094, Sep 5, 2013

Filed:

Feb 11, 2013

Appl. No.:

13/764049

Inventors:

Dennis I. Robbins - Richardson TX, US
Thomas Jung - Dallas TX, US

Assignee:

XW LLC dba Xtendwave - Dallas TX

International Classification:

H04H 40/27

US Classification:

375238

Abstract:

A novel and useful multi-antenna receiver that receives, demodulates and decodes a broadcast signal, whose modulation and encoding of time and timing information allow for reliable and power-efficient operation. The multi-antenna receiver of the present invention is adapted to eliminate or substantially reduce the reception nulls that occur in receivers having a single antenna that is placed in a fixed position. Two or more antennas are employed whereby the receiver generates a combined signal based on a combination of the individual antenna signals or selects one of the antenna signals for input to the receiver based on desired criteria such as signal-to-noise-and-interference-ratio (SNIR). This results in greater robustness of the communication link by reducing or eliminating reception nulls and by rejecting interference through the selection of the antenna for which the signal-to-interference ratio is higher. The invention includes various antenna configurations that are adapted to reuse a single core for multiple antennas or to otherwise reduce size and/or cost.

US Patent:

20140050315, Feb 20, 2014

Filed:

Feb 6, 2013

Appl. No.:

13/761012

Inventors:

Zahid Islam - Dallas TX, US
Naofal M. Al-Dhahir - Plano TX, US
Oren E. Eliezer - Plano TX, US
Dennis I. Robbins - Richardson TX, US

Assignee:

XW, LLC D/B/A XTENDWAVE - Dallas TX

International Classification:

H04B 7/04
H04B 3/32

US Classification:

37940602, 375349, 375296

Abstract:

A system and method for processing an input matrix and a MIMO receiver employing the system or the method. In one embodiment, the system includes: (1) a transformer configured to receive a frame of complex data representing only some elements of an input matrix and perform a fast plane rotation on the complex data to yield rotated data and (2) a matrix updater coupled to the transformer and configured to update a memory configured to contain an output matrix with the rotated data. In one embodiment, the system and method are to estimate and mitigate alien cross-talk experienced in a vectored DSL communication system.

US Patent:

56696205, Sep 23, 1997

Filed:

Oct 18, 1995

Appl. No.:

8/543995

Inventors:

Dennis L. Robbins - Bedford TX

International Classification:

B62M 114

US Classification:

2802501

Abstract:

The invention is to a wheel chair assembly and a seat transfer mechanism that permits the person on the seat and the seat to move laterally. The seat is on a platform that has a base and first and second laterally movable platforms. The wheel chair seat is latched to the top one of the two laterally movable platforms. The bottom of the seat has two tracks that are matched to and engage a track on a fixed seat frame such as a seat on an aircraft.

US Patent:

57331600, Mar 31, 1998

Filed:

Mar 1, 1996

Appl. No.:

8/609663

Inventors:

Johnson J. Lin - Plano TX
Bruce E. Gnade - Dallas TX
Dennis I. Robbins - Richardson TX

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H01J 130

US Classification:

445 24

Abstract:

A method disclosed herein for making a spacer 30 useful for maintaining a fixed spacing between the cathode 12 and anode 10 structures of a flat display. The method includes the steps of melting an end of a glass filament 40 held in the bore of a capillary 42, urging the melted end 46 against the surface 23 of the cathode structure 12 to form a bond thereon, and severing the filament 40 at a fixed distance h from the surface 23 to thereby form an upright spacer 30. The severing step may be accomplished by tilting or twisting the capillary 42 until the filament 40 is severed, or by cutting the filament 40 with a torch flame 54. The bonding process may be enhanced by preheating the cathode structure 12 and/or by subjecting the cathode structure 12 to ultrasonic vibration during bonding.