HENRY STEPHEN EILTS
Pilots at Mullins Dr, Plano, TX

6393073, May 21, 2002

Jun 28, 1999

09/340625

Henry S. Eilts - Plano TX

Raytheon Company - Lexington MA

H03D 100

375340, 375327

A method of frequency offset estimation and correction for adaptive antennas comprises receiving in a processor samples of a data set having a training data sample sequence. A batch least squares weight solution is computed for the training data sample sequence to obtain a least square error for each sample. Each error sample is rotated by multiplying by the conjugate of a sample of the reference training sequence and each rotated error sample is numbered (in the order received). A straight line is fit to the imaginary part of the rotated error sample (as a function of sample number) to obtain a frequency offset estimate. Each sample in a time slot of the samples of a dataset is multiplied by a complex exponential function of the frequency offset estimate.

6799019, Sep 28, 2004

Jun 4, 1997

08/868663

Henry S. Eilts - Plano TX

Texas Instruments Incorporated - Dallas TX

H04Q 730

455101, 370321, 370347

A mobile telephone system and method having a base station for receiving data bursts during consecutive frames, each frame of predetermined time duration and divided into a plurality of slots of predetermined time duration. The base station has an antenna, base station electronics and preprocessing circuitry coupled to the base station antenna and the base station electronics. Delay circuitry is coupled to the base station preprocessing circuitry and base station electronics to provide the complement of a total time delay to the data bursts through the preprocessing circuitry and the delay circuitry equal to an integral number of the predetermined time duration of a frame. The time delay of the preprocessing circuitry can be fixed or variable, in which case the time delay of the delay circuitry is either fixed or variable, respectively. In the case of variable delay, the delay circuitry will include circuitry to monitor the time delay provided by the preprocessing circuitry and adjust the delay in the delay circuit in accordance with the monitored.

2001003, Nov 8, 2001

Mar 2, 2001

09/798761

William Golemon - Plano TX, US
Henry Eilts - Plano TX, US

H04B001/10

455/063000, 455/422000

A system for wireless communication between a base station and one or more remote stations and wherein a desired signal has associated therewith an identifier tone (a SAT in the vernacular of the AMPS system) and wherein interfering signals may have associated therewith identifier tones at different frequencies. A superresolution technique is used in the system to process the received data and to determine the relative magnitudes of any identifier tones which may be present in the received data. In the disclosed embodiment, the superresolution technique utilized is a least square error process. The resulting estimates are used by the system to facilitate the communication function.

6018643, Jan 25, 2000

Jun 3, 1997

8/867751

William P. Golemon - Plano TX
Henry S. Eilts - Plano TX

Texas Instruments Incorporated - Dallas TX

H04Q 720, H04Q 730

455 63

A system for wireless communication between a base station 30 and one or more remote stations 32 and 34 wherein the beam pattern of the receiving antenna 50-52 can be adaptively formed to track a desired signal. A series of weights is applied, one to each output of the elements of the receiving antenna and the weighted output summed to form the antenna output. The weights are adaptively modified so as to focus the beam in the direction of one of many signals which may be present in the data received by the antenna. A least-square-error process is used to identify if the signal beamed on is the desired signal. If such is not the case, the weights are modified to null out the earlier signal and to focus the pattern on another signal.

7180965, Feb 20, 2007

Jun 14, 2002

10/172557

Henry Stephen Eilts - Plano TX, US
Srinath Hosur - Plano TX, US
David Patrick Magee - Plano TX, US

Texas Instruments Incorporated - Dallas TX

H03D 1/00, H04B 3/46, H04L 27/08

375340, 375226, 375345

Methods are presented for phase estimation and compensation in Orthogonal Frequency Division Multiplex systems. The methods include the step of extracting training tones from a received digitized data burst. Some of the methods further include the steps of determining a channel impulse response based on the extracted tones; estimating phase shift caused by common phase noise; correcting the impulse response and performing a Fast Fourier transform to provide a channel estimate. Some of the methods include estimating the phase shift caused by common phase noise before an average impulse response is updated with the current impulse impulse. Some of the methods include frequency shifting the spectrum of the channel impulse response and providing partial estimates.

5410321, Apr 25, 1995

Sep 29, 1993

8/128943

Eldon L. Gordon - Sachse TX
Henry S. Eilts - Plano TX
John P. Volpi - Garland TX

Texas Instruments Incorporated - Dallas TX

H01Q 302, H01Q 312

342374

An antenna system and method comprising an antenna having 2+N antenna elements, where N is zero or an odd integer, an algorithm controlled switching circuit having a separate switch associated with each of the elements and a switch control selectively causing the switching circuit to couple an adjacent pair of the antenna elements to their associated switches while maintaining the remaining switches uncoupled from their associated antenna elements. The algorithm controlled switch control includes circuitry for successively coupling each adjacent antenna element pair of the antenna elements to their associated switches, determining a predetermined parameter for each of the antenna element pair and then causing the antenna system to operate with only one of the antenna pairs responsive to determination of the predetermined parameter. The centers of all of the antenna elements are directed in one or the other of two opposite directions and the center of each of the antenna elements is disposed at a different vertex of an equilateral polygon having N sides.

6236838, May 22, 2001

Jun 3, 1997

8/867914

William P. Golemon - Plano TX
Henry S. Eilts - Plano TX

Texas Instruments Incorporated - Dallas TX

H04B 1700, H04Q 720, G06F 1710, G06F 1500

455 671

A system for wireless communication between a base station 30 and one or more remote stations 32 and 34 wherein a desired signal has associated therewith an identifier tone (a SAT in the vernacular of the AMPS system) and wherein interfering signals may have associated therewith identifier tones at different frequencies. A superresolution technique is used in the system to process the received data and to determine the relative magnitudes of any identifier tones which may be present in the received data. In the disclosed embodiment, the superresolution technique utilized is a least square error process. The resulting estimates are used by the system to facilitate the communication function.

7957713, Jun 7, 2011

Dec 21, 2007

11/962389

Henry S. Eilts - Plano TX, US
Srinath Hosur - Plano TX, US

Texas Instruments Incorporated - Dallas TX

H04B 17/02

455136, 4552261, 4552341

Disclosed herein is an iterative process for calibrating an AGC in a wireless system, wherein the iterative process comprises transmitting a calibration signal, receiving the calibration signal, decoding the calibration signal to produce a measurement, storing the measurement and changing an AGC gain setting.

7826459, Nov 2, 2010

Aug 11, 2008

12/189715

Ariton E. Xhafa - Plano TX, US
Xiaolin Lu - Plano TX, US
Henry S. Eilts - Plano TX, US

Texas Instruments Incorporated - Dallas TX

H04L 12/28

3703955, 370252

In at least some embodiments, a communication device includes a plurality of network technology subsystems, each subsystem associated with a different network technology. The communication device also includes a controller coupled to the plurality of network technology subsystems. The controller enables coexistence of the different network technologies in accordance with at least one monitored quality of service (QoS) parameter.

7231184, Jun 12, 2007

Dec 5, 2003

10/730242

Henry S. Eilts - Plano TX, US
Srinath Hosur - Plano TX, US
David P. Magee - Plano TX, US

Texas Instruments Incorporated - Dallas TX

H04B 17/00

455 6711, 455 661, 455 6713, 455 6716, 4551151, 455103, 455 78, 370335, 370342, 375219, 375146

A transmit channel (g, h, g) through which a first wireless communication transceiver is to transmit to a second wireless communication transceiver can be estimated using information indicative of a relationship between the transmit channel and a receive channel (g, h, g) through which the first wireless communication transceiver receives communications from the second wireless communication transceiver. The relationship information () is combined () with further information () to produce an estimate of the transmit channel.