James Wright Langston

US Patent:

62123971, Apr 3, 2001

Filed:

Dec 22, 1997

Appl. No.:

8/996270

Inventors:

James L. Langston - Richardson TX
Michael F. Black - Garland TX
William K. Myers - McKinney TX
James S. Marin - Murphy TX
Douglas B. Weiner - The Colony TX

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H04B 700
H04B 100
H04B 106
H04Q 700

US Classification:

455500

Abstract:

Multipoint Stations are controlled by one or more pilot tones broadcasted by a base station. The pilot tones are used to control the local oscillators of the remote stations both for receive and for transmit. The pilot tone is also used to control the input gain and the transmit gain of the remote station.

US Patent:

55362222, Jul 16, 1996

Filed:

Jun 7, 1995

Appl. No.:

8/482325

Inventors:

Jose A. Banda - Houston TX
James R. Langston - Pearland TX

International Classification:

A63B 100

US Classification:

482 38

Abstract:

An exercise device designed to be used with a rod or a bar. The exercise device is lightweight and detachable. It does not require clamps or screws to secure it to a tabletop. The exercise device is also portable.

US Patent:

20190258211, Aug 22, 2019

Filed:

Feb 20, 2019

Appl. No.:

16/280711

Inventors:

- Tallahassee FL, US
Karl Schoder - Crawfordville FL, US
Mark Stanovich - Crawfordville FL, US
James Langston - Crawfordville FL, US

International Classification:

G05B 17/02

Abstract:

A controller hardware in the loop (CHIL) interface is disclosed. The CHIL interface comprises software and hardware that redirects a signal flow, including modulation signals and measurements exchanged between controller logic and a power electronics converter (PEC), to a CHIL port. Accordingly, the CHIL port provides access to the controller logic, at a digital level, throughout phases of the controller's lifetime (i.e., design, installation, maintenance, upgrade). Thus, the CHIL interface facilitates the use of PEC simulators for testing. The CHIL interface can detach the actual PEC from the control logic so testing can be performed with or without an operating PEC and can avoid the need for dedicated and error prone signal conditioning circuitry that is external to the controller.