Gerald L Johnson

US Patent:

D459246, Jun 25, 2002

Filed:

Nov 26, 2001

Appl. No.:

29/150625

Inventors:

John Michael Power - Garland TX
Gerald Lee Johnson - Garland TX

Assignee:

Garrett Electronics, Inc. - Garland TX

International Classification:

1004

US Classification:

D10 47

US Patent:

6661999, Dec 9, 2003

Filed:

Dec 28, 2000

Appl. No.:

09/750818

Inventors:

Gerald B. Johnson - Hudson OH
James Friedmann - Canton OH

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04B 104

US Classification:

4551271, 4551272, 455522, 375146

Abstract:

A system and method for transmitting data communications through air using a radio. The invention allows the user to select from a number of predetermined output transmission powers. When a lower output transmission power is selected the current drain to the associated amplifier is decreased thereby conserving battery power of the radio. In addition, a detector diode circuit combined with an adjustable gain amplifier combine to provide a feedback mechanism whereby the output transmission power of the radio is held substantially constant over a broad range of temperatures.

US Patent:

D497559, Oct 26, 2004

Filed:

Feb 13, 2003

Appl. No.:

29/175958

Inventors:

Gerald Lee Johnson - Garland TX

Assignee:

Garrett Electronics, Inc. - Garland TX

International Classification:

1004

US Classification:

D10 47

US Patent:

D513706, Jan 24, 2006

Filed:

Feb 13, 2003

Appl. No.:

29/175959

Inventors:

Gerald Lee Johnson - Garland TX, US

Assignee:

Garrett Electronics, Inc. - Garland TX

International Classification:

1004

US Classification:

D10 47

US Patent:

D533792, Dec 19, 2006

Filed:

Jul 15, 2005

Appl. No.:

29/234229

Inventors:

Gerald Lee Johnson - Garland TX, US
Robert J. Podhrasky - Dallas TX, US
Brent Charles Weaver - Heath TX, US

Assignee:

Garrett Electronics, Inc. - Garland TX

International Classification:

1004

US Classification:

D10 47

US Patent:

7184722, Feb 27, 2007

Filed:

Dec 1, 2003

Appl. No.:

10/724796

Inventors:

Gerald B. Johnson - Hudson OH, US
James Friedmann - Canton OH, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04B 1/04

US Classification:

4551271, 4551272, 455522, 455574, 4553431, 375146

Abstract:

A system and method for transmitting data communications through air using a radio. The invention allows the user to select from a number of predetermined output transmission powers. When a lower output transmission power is selected the current drain to the associated amplifier is decreased thereby conserving battery power of the radio. In addition, a detector diode circuit combined with an adjustable gain amplifier combine to provide a feedback mechanism whereby the output transmission power of the radio is held substantially constant over a broad range of temperatures.

US Patent:

D583261, Dec 23, 2008

Filed:

May 29, 2008

Appl. No.:

29/318829

Inventors:

Gerald Lee Johnson - Garland TX, US
Robert J. Podhrasky - Dallas TX, US

Assignee:

Garrett Electronics, Inc. - Garland TX

International Classification:

1004

US Classification:

D10 47

US Patent:

7760024, Jul 20, 2010

Filed:

Oct 7, 2005

Appl. No.:

11/246808

Inventors:

Petros Giatis - Brunswick OH, US
Gerald B. Johnson - Hudson OH, US
Corey Metsker - Clinton OH, US

Assignee:

Cisco Technology, Inc - San Jose CA

International Classification:

H03G 3/00

US Classification:

330278, 330279, 330285, 330310

Abstract:

A system and method for increasing accuracy of transmitter power detection over a larger range of output power levels wherein a diode detector is followed by a series cascade of 2 op amps. The first op amp functions as a differential/buffer amplifier, which improves temperature performance. The second op amp has two selectable gain factors. The output of the second op amp is routed to the ADC. A single control line is connected to a controllable switching device that configures the second op amp for high gain or low gain.