ZOLTAN DUDLEY AZARY
Pilots in Occidental, CA

6598196, Jul 22, 2003

Feb 29, 2000

09/515577

Paul E. Bussard - Santa Rosa CA
Zoltan D. Azary - Occidental CA

Agilent Technologies, Inc. - Palo Alto CA

G06F 1130

714746, 375350

Measurement and correction of encoder errors in a servo loop. By driving the servo system on a predetermined trajectory such that encoder errors occur at frequencies outside the servo loop response, these errors are sampled. Sampled encoder error data is filtered to produce correction data, which may be applied inside or outside the servo loop.

6362878, Mar 26, 2002

Oct 29, 1999

09/430338

Gary Wang - Santa Rosa CA
Paul S. Bussard - Santa Rosa CA
Zoltan D. Azary - Occidental CA
Kenneth R. Wildnauer - Santa Rosa CA
Peter Egerton - Santa Rosa CA

Agilent Technologies, Inc. - Palo Alto CA

G01J 300

356300, 356328, 356334

Improved calibration of optical wavelength measuring instruments. In a first embodiment, improved calibration is achieved in an optical wavelength measuring instrument by performing calibration measurements at a plurality of known wavelengths and using an average calibration constant derived from the plurality of measurements. In a second embodiment, improved calibration is achieved by performing calibration measurements at a plurality of known wavelengths and calculating a linear or higher order calibration model, or a periodic model. These approaches may be extended by segmenting the wavelength range and using different calculated calibration values, or different calibration models, for each segment.

6548802, Apr 15, 2003

Apr 20, 2001

09/838912

Mohan Gurunathan - Santa Rosa CA
Zoltan D. Azary - Occidental CA
Greg C. Richtenburg - Sebastopol CA

Agilent Technologies, Inc. - Palo Alto CA

H01J 4014

250214A, 2502141

A zero calibration system and method for an optical receiver include an illuminated photodetector, switchably coupled to an amplifier. The photodetector is de-coupled from the amplifier while illumination of the photodetector is maintained and an error signal is measured at the output of the amplifier The photodetector is then coupled to the amplifier and subsequent signals measured at the output of the amplifier are corrected according to the measured error signal, based on a comparison of the relative values of a feedback resistor, coupled between the output and an input of the amplifier, and an equivalent resistance of the photodetector. When the ratio of the feedback resistor to the equivalent resistance does not exceed a predetermined threshold, the subsequently measured signals at the output of the amplifier are corrected by offsetting the subsequently measured signals by the measured error signal. When the ratio exceeds the predetermined threshold, the subsequently measured signals at the output of the amplifier are corrected by offsetting the subsequently measured signals by the measured error signal as modified by a correction factor.

6707025, Mar 16, 2004

Jun 4, 2002

10/161947

Zoltan D Azary - Occidental CA
Joseph N West - Petaluma CA
Mohan Gurunathan - Santa Rosa CA

Agilent Technologies, Inc. - Palo Alto CA

H01J 4014

250214AG, 250214 LS, 330278

A high dynamic range receiver includes a detector that produces a current at a pair of terminals. A first gain element, implemented as a current-to-voltage converter for example, is coupled to the first terminal, receiving the current and generating a first output signal corresponding to the current. A second gain element, implemented as a current-to-voltage converter for example, is coupled to the second terminal, receiving the current and generating a second output signal corresponding to the received current. A switch selectively couples the first output signal or the second output signal to a port based on a comparison of at least one of the first output signal and the second output signal to a threshold.

2005025, Nov 10, 2005

May 4, 2004

10/838949

Zoltan Azary - Occidental CA, US

G01R029/02

702079000

Systems and methods are provided that allow for accurate computation of the group delay and, if desired, phase response of an electrical network from known amplitude measurements. In one embodiment, a model that includes information regarding locations (e.g., approximate locations) of at least one of poles and zeros for an electrical network is used for computing at least one of group delay and phase response of the electrical network for a frequency range over which amplitude measurement data is unknown. Further, a transition segment may be determined for use in computing contribution to group delay over a transition between a first frequency region for which amplitude measurement data is known and a second frequency region for which amplitude measurement data is unknown. The techniques provided may be used for analyzing various types of systems, such as lowpass, bandpass, etc., and may be applied for analysis of non-minimum phase electrical networks.

8224269, Jul 17, 2012

Oct 16, 2006

11/581876

Roger L. Jungerman - Petaluma CA, US
Geoffrey Hopcraft - Santa Rosa CA, US
Zoltan Azary - Occidental CA, US

Agilent Technologies, Inc. - Santa Clara CA

H01Q 11/12

455126, 455130, 455214, 455522

A vector modulator calibration system (“VMCS”) for obtaining a calibrated modulated output signal while minimizing spurious output signals from a vector modulator is shown. The VMCS may include a power sensor in signal communication with the vector modulator and a digitizer in signal communication with the power sensor.