Bryan D Woll

6412901, Jul 2, 2002

Apr 24, 2001

09/841386

Wen-Li Su - Vancouver WA
Trudy L. Benjamin - Portland OR
Steven B. Elgee - Portland OR
Thomas F. Uhling - Vancouver WA
Bruce A. Axten - Vancouver WA
Kerry J. Lundsten - Vancouver WA
Xiuting C. Man - Vancouver WA
Tamara L. Hahn - San Diego CA
Michael T. Dangelo - San Diego CA
Bryan D. Woll - Poway CA
Timothy L. Weber - Corvallis OR
James W Pearson - Corvallis OR
Iue-Shuenn Chen - San Diego CA

Hewlett-Packard Company - Palo Alto CA

B41J 29393

347 19, 347 35

A monitoring system monitors a pressure wave developed in the surrounding ambient environment during inkjet droplet formation. The monitoring system uses either acoustic, ultrasonic, or other pressure wave monitoring mechanisms, such as a laser vibrometer, an ultrasonic transducer, or an accelerometer sensor, for instance, a microphone to detect droplet formation. One sensor is incorporated in the printhead itself, while others may be located externally. The monitoring system generates information used to determine current levels of printhead performance, to which the printer may respond by adjusting print modes, servicing the printhead, adjusting droplet formation, or by providing an early warning before an inkjet cartridge is completely empty. During printhead manufacturing, an array of such sensors may be used in quality assurance to determine printhead performance. An inkjet printing mechanism is also equipped for using this monitoring system, and a monitoring method is also provided.

53029569, Apr 12, 1994

Aug 14, 1992

7/930066

Jimmie R. Asbury - Imperial Beach CA
Bryan D. Woll - Laguna Niguel CA
Van R. Malan - La Jolla CA

Vorad Safety Systems, Inc. - San Diego CA

G01S 1300

342 70

A vehicular collision avoidance radar system using digital signal processing techniques including a transmit section that generates a two channel transmit frequency. An antenna both transmits the transmit signal and receives a reflected receive signal. A Schottky diode mixer generates a difference signal having a frequency equal to the transmit frequency minus the receive frequency. A signal switch in a front end electronics section time demultiplexes and samples the channel 1 and channel 2 signals. The samples are coupled to a two-channel analog to digital (A/D) converter. A digital electronics section receives the digital information and performs a Fast Fourier Transform (FFT) on each channel of digital data to determine relative speed and range of a target based upon the frequency and the difference in phase of the two channels. The digital electronics section also receives information regarding the status of vehicle operation and/or controls to determine the degree of danger presented by an identified target.

RE368199, Aug 15, 2000

Jun 11, 1996

8/661525

Robert C. Gellner - Santee CA
Bryan D. Woll - Laguna Niguel CA
Jerry D. Woll - Poway CA
John W. Davis - Encinitas CA
Duane G. Tubbs - La Mesa CA

Vorad Safety Systems, Inc. - CA

G01S 1392

342 70

A monopulse vehicular radar system for tracking a target about an automotive vehicle senses a transmitted signal reflected back from the target and received at two different locations, determines the sum and the difference of the reflected signals sensed at the two locations, and compares the sum and difference to determine the deviation of the target from a reference azimuth. A source frequency provided by a Gunn diode is applied to and transmitted by a two-lobe monopulse antenna. The antenna lobes detect the reflected signals from the target by sensing them at the two different lobes. A hybrid junction provides sum and difference signals to mixers which homodyne the signals to produce sum and difference Doppler frequency signals using the source frequency. The Doppler frequency signals are amplified and then compared to determine the deviation of the target from the reference azimuth. The comparison process can be done digitally by converting the amplified frequency signals to digital signals which are then processed in a digital signal processor, or the comparison may be done in analog fashion using a phase/quotient detector.

62609416, Jul 17, 2001

Apr 9, 1999

9/289481

Wen-Li Su - Vancouver WA
Trudy L. Benjamin - Portland OR
Steven B. Elgee - Portland OR
Thomas F. Uhling - Vancouever WA
Bruce A. Axten - Vancouver WA
Kerry J. Lundsten - Vancouver WA
Xiuting C. Man - Vancouver WA
Tamara L. Hahn - San Diego CA
Michael T. Dangelo - San Diego CA
Bryan D. Woll - Poway CA
Timothy L. Weber - Corvallis OR
James W Pearson - Corvallis OR
Iue-Shuenn Chen - San Diego CA

Hewlett-Packard Company - Palo Alto CA

B41J 29393
B41J 2165
B41J 2938

347 19

A monitoring system monitors a pressure wave developed in the surrounding ambient environment during inkjet droplet formation. The monitoring system uses either acoustic, ultrasonic, or other pressure wave monitoring mechanisms, such as a laser vibrometer, an ultrasonic transducer, or an accelerometer sensor, for instance, a microphone to detect droplet formation. One sensor is incorporated in the printhead itself, while others may be located externally. The monitoring system generates information used to determine current levels of printhead performance, to which the printer may respond by adjusting print modes, servicing the printhead, adjusting droplet formation, or by providing an early warning before an inkjet cartridge is completely empty. During printhead manufacturing, an array of such sensors may be used in quality assurance to determine printhead performance. An inkjet printing mechanism is also equipped for using this monitoring system, and a monitoring method is also provided.

54021294, Mar 28, 1995

Aug 4, 1993

8/101945

Robert C. Gellner - Santee CA
Bryan D. Woll - Laguna Niguel CA
Jerry D. Woll - Poway CA
John W. Davis - Encinitas CA
Duane G. Tubbs - La Mesa CA

Vorad Safety Systems, Inc. - San Diego CA

G01S 1392

342 70

A monopulse vehicular radar system for tracking a target about an automotive vehicle senses a transmitted signal reflected back from the target and received at two different locations, determines the sum and the difference of the reflected signals sensed at the two locations, and compares the sum and difference to determine the deviation of the target from a reference azimuth. A source frequency provided by a Gunn diode is applied to and transmitted by a two-lobe monopulse antenna. The antenna lobes detect the reflected signals from the target by sensing them at the two different lobes. A hybrid junction provides sum and difference signals to mixers which homodyne the signals to produce sum and difference Doppler frequency signals using the source frequency. The Doppler frequency signals are amplified and then compared to determine the deviation of the target from the reference azimuth. The comparison process can be done digitally by converting the amplified frequency signals to digital signals which are then processed in a digital signal processor, or the comparison may be done in analog fashion using a phase/quotient detector.

55814646, Dec 3, 1996

Oct 11, 1994

8/320603

Jerry D. Woll - Poway CA
Bryan D. Woll - Laguna Niguel CA
Van R. Malan - La Jolla CA

Vorad Safety Systems, Inc.

G06F 1300

36442404

An apparatus and method for recording operational events in an automotive radar system. The invention provides an Event Recording Apparatus (ERA) that records selectable vehicle performance, operational status, and/or environment information, including information useful for accident analysis and updated software for use by a system processor capable of reading data from the ERA. The preferred embodiment of the ERA comprises a non-volatile solid-state memory card, a memory card adapter located in a vehicle, and a microprocessor, either as part of the memory card or embedded in a system within the vehicle, for controlling the storage of data within the memory card. The ERA is configured to store such vehicle information as the closing rate between the recording vehicle and targets located by the vehicle's radar system, distance between the recording vehicle and targets, vehicle speed, and such vehicle operational status and environment information as braking pressure, vehicle acceleration or deceleration, rate of turning, steering angle, hazard levels determined from a radar system processor, target direction, cruise control status, vehicle engine RPM, brake temperature, brake line hydraulic pressure, windshield wiper status, fog light status, defroster status, and geographic positioning information. In addition, the ERA can be configured to function as a common trip monitor, recording distance travelled, average speed, miles-per-gallon, fuel remaining, compass direction of travel, etc. The device can also record vehicle maintenance information, such as oil temperature, engine temperature, transmission fluid temperature, and engine timing.

59298758, Jul 27, 1999

Jul 24, 1996

8/687000

Wen-Li Su - Vancouver WA
Trudy L. Benjamin - Portland OR
Steven B. Elgee - Portland OR
Thomas F. Uhling - Vancouever WA
Bruce A. Axten - Vancouver WA
Kerry J. Lundsten - Vancouver WA
Xiuting C. Man - Vancouver WA
Tamara L. Hahn - San Diego CA
Michael T. Dangelo - San Diego CA
Bryan D. Woll - Poway CA
Timothy L. Weber - Corvallis OR
James W Pearson - Corvallis OR
Iue-Shuenn Chen - San Diego CA

Hewlett-Packard Company - Palo Alto CA

B41J 29393

347 19

A monitoring system monitors a pressure wave developed in the surrounding ambient environment during inkjet droplet formation. The monitoring system uses either acoustic, ultrasonic, or other pressure wave monitoring mechanisms, such as a laser vibrometer, an ultrasonic transducer, or an accelerometer sensor, for instance, a microphone to detect droplet formation. One sensor is incorporated in the printhead itself, while others may be located externally. The monitoring system generates information used to determine current levels of printhead performance, to which the printer may respond by adjusting print modes, servicing the printhead, adjusting droplet formation, or by providing an early warning before an inkjet cartridge is completely empty. During printhead manufacturing, an array of such sensors may be used in quality assurance to determine printhead performance. An inkjet printing mechanism is also equipped for using this monitoring system and a monitoring method is also provided.

54650798, Nov 7, 1995

Aug 13, 1993

8/106407

Paul J. Bouchard - San Diego CA
Jerry D. Woll - Poway CA
Bryan D. Woll - Laguna Niguel CA
Jimmie R. Asbury - San Diego CA

Vorad Safety Systems, Inc. - San Diego CA

G08B 2100

340576

A method and apparatus for evaluating a driver's performance under actual real-time conditions and for using such evaluations to determine the driver's ability to safely operate a vehicle compares the information gathered by a radar system and other sensors with information previously stored in an event recording device. Conditions monitored are used to make a determination as to whether the driver is performing in conformity with normal driving standards and the driver's own past performance. The driver's performance is constantly monitored and compared to that driver's past performance to determine whether the driver's present performance is impaired, and if so, whether the impairment is detrimental to the driver's ability to safely operate the vehicle.