Howard V Goetz

US Patent:

7373224, May 13, 2008

Filed:

Jul 22, 2004

Appl. No.:

10/898482

Inventors:

Howard V. Goetz - Tigard OR, US
Dennis A. Duffy - Vancouver WA, US
Randall J. Goetz - Portland OR, US
Andrew Rady - Clackamas OR, US

Assignee:

SafetyWatch Technologies, Inc. - Tualatin OR

International Classification:

G06F 19/00

US Classification:

701 29, 701 36, 188 2 R, 188 111 R

Abstract:

A brake monitoring system for use on a motor vehicle includes a sensor connected to each brake actuator shaft on the motor vehicle for monitoring the position and travel of the brake actuator shaft and for generating and transmitting a brake condition signal; a data processor carried in an axle box associated with each axle and connected to sensors associated with brakes for the axle for receiving, interpreting, storing, and upon request, transmitting the brake condition signal, wherein each data processor includes an auto-address mechanism to identify its position on the vehicle; and a master station, wherein said master station includes a display for identifying a particular vehicle brake, a quantitative indication of the travel on the brake actuator shaft associated with the particular brake, and wherein said visual indicating devices include plural indicia which are indicative of said safety condition of a particular brake.

US Patent:

7990600, Aug 2, 2011

Filed:

May 24, 2005

Appl. No.:

11/569498

Inventors:

Jonathan A. Sachs - Vancouver WA, US
Howard V. Goetz - Tigard OR, US
David Keith - Vancouver WA, US
Lin Li - St. Petersburg FL, US
Steven H. Linn - Hillsboro OR, US
Alexander Parfenov - Rancho Palos Verdes CA, US
Stephen E. Brice - Portland OR, US
Terry J. Scheffer - Hilo HI, US
James A. Van Vechten - Corvallis OR, US
Jiuzhi Xue - Broomfield CO, US

Assignee:

Compound Photonics Limited - Phoenix AZ

International Classification:

G02F 1/03

US Classification:

359241, 359244

Abstract:

An optically addressed, photoconductive spatial light modulator (SLM) operates in a transmissive mode and is capable of modulating a wide spectrum of visible light. There is no pixel structure or native pixel resolution in the SLM. The SLM has no photodiodes and does not rectify. A light projection system () in which one or more SLMs () are placed includes a write (image definition) UV light path () and a read (illumination) visible light path () to form a color image projection display. The write UV light propagates from an image display pattern source () and either sequentially or continuously writes image patterns on the photoconductive SLMs. The read visible light propagates through the SLM and is modulated by an electro-optical material, the optical properties of which change in response to the image structure carried by the write light. The result is a high efficiency display system that delivers high resolution color images through a projection lens () onto a display screen.

US Patent:

8013820, Sep 6, 2011

Filed:

Jun 1, 2007

Appl. No.:

11/809417

Inventors:

Howard V. Goetz - Tigard OR, US
James L. Sanford - Camas WA, US
Jonathan A. Sachs - Vancouver WA, US

Assignee:

Compound Photonics Limited - Phoenix AZ

International Classification:

G09G 3/36

US Classification:

345 87, 345 94, 359264

Abstract:

A method, device and computer program are detailed for modulating write light. For a plurality of pixel locations of an electro-optic layer of an optical write valve and across each of a plurality of consecutive frames, a set of pixel data bits is modulated across a first and a second pulse width period of the frame. The first and second pulse width periods, and adjacent pulse periods of sequential frames, are separated from one another by a pulse-off period that is at least equal to a response time of the electro-optic layer during which no bits are modulated. Separately in each frame, write light is output from each of the plurality of pixel locations according to the modulated pixel data bits in the frame. In an embodiment, the set of pixel data bits are modulated by applying a voltage at a pixel location of the electro-optic layer in synchronism with illuminating a light source that illuminates that pixel location.

US Patent:

8072670, Dec 6, 2011

Filed:

Feb 9, 2006

Appl. No.:

11/350706

Inventors:

James L. Sanford - Camas WA, US
Howard V. Goetz - Tigard OR, US
Steven H. Linn - Hillsboro OR, US

Assignee:

Compound Photonics Limited - Phoenix AZ

International Classification:

G02F 1/03

US Classification:

359254

Abstract:

A spatial light modulator has an array of elements organized into element rows and element columns and an array of electrodes organized into electrode rows and electrode columns to activate the array of elements. The modulator has pixel circuitry organized into circuit rows and circuit columns with the pixel circuitry being electrically coupled to the array of electrodes, such that there is at least one translation of either circuits in a column to electrodes in a row or circuits in a row to electrodes in a column.

US Patent:

8405690, Mar 26, 2013

Filed:

Jun 1, 2007

Appl. No.:

11/809416

Inventors:

Howard V. Goetz - Tigard OR, US
James L. Sanford - Camas WA, US
Jonathan A. Sachs - Vancouver WA, US

Assignee:

Compound Photonics Limited - London

International Classification:

G09G 5/10
G09G 3/36
G09G 5/02
G02F 1/03
G02F 1/00
G02F 1/1335
H03K 7/08

US Classification:

345691, 345 89, 345 99, 345694, 359242, 359245, 359264, 348751, 349 5, 332109

Abstract:

A technique for modulating light by an optically addressed, electric charge accumulating spatial light modulator achieves substantially monotonic gray scale response. Embodiments digitally modulate the voltage across a photoreceptive material included in the spatial light modulator. The digital modulation scheme entails illuminating the photoreceptor with a series of light pulses propagating from an LCoS, in which the durations of the light pulses and their positions in time combine to produce binary-weighted equivalent rms voltages on the photoreceptor. The light pulses originate from a light-emitting diode or other switchable light source, and the timing of the light pulses is controlled such that they are emitted only when the associated LCoS is in a stable state. Emitting light pulses while the LCoS is in a stable state avoids non-monotonic behavior.

US Patent:

20020149557, Oct 17, 2002

Filed:

Dec 20, 2001

Appl. No.:

10/032283

Inventors:

Howard Goetz - Tigard OR, US
Steven Linn - Hillsboro OR, US
David Keith - Vancouver WA, US

Assignee:

Sarif, Inc.

International Classification:

G09G003/36

US Classification:

345/100000

Abstract:

Display systems include display drivers that receive digital video data and retain digital pixel values corresponding to a row of pixels of a display panel. The retained digital pixel values are digitally compared with a digital count produced by a digital counter and at a transition time determined by the comparison of the digital pixel value and the digital count, a data ramp signal is applied to the pixel. The data ramp signal is configured to be time varying so that the transition time at which the data ramp signal is applied to the pixel can be used to establish a pixel voltage corresponding to a desired image value. In an example, digital pixel values corresponding to a first row of pixels are processed so that the data ramp signal is applied to each pixel of the first row at transition times determined by the digital image values associated with each pixel. While the digital image values of the first row of pixels are processed, digital pixel values corresponding to a second row of pixels are received and stored for processing after processing of the first row is complete.

US Patent:

20020196264, Dec 26, 2002

Filed:

Jan 24, 2002

Appl. No.:

10/058814

Inventors:

Howard Goetz - Tigard OR, US

Assignee:

Sarif, Inc.

International Classification:

G09G005/00

US Classification:

345/611000

Abstract:

Image defects are compensated by determining correction values based on an array of predetermined correction values based on display measurements. A correction value for a selected pixel is obtained by horizontal and vertical interpolation using the predetermined correction values. The computed correction values correspond to gain or offset corrections that are applied to input image values by multiplication or addition, respectively. Interpolation is based on predetermined correction values associated with a zone or subzones of a zone, or on an rate of change of an interpolation increment per row or per column.

US Patent:

20130222443, Aug 29, 2013

Filed:

Mar 25, 2013

Appl. No.:

13/850255

Inventors:

Howard V. Goetz - Tigard OR, US
James L. Sanford - Camas WA, US
Jonathan A. Sachs - Vancouver WA, US

International Classification:

G09G 3/36

US Classification:

345697

Abstract:

A technique for modulating light by an optically addressed, electric charge accumulating spatial light modulator achieves substantially monotonic gray scale response. Embodiments digitally modulate the voltage across a photoreceptive material included in the spatial light modulator. The digital modulation scheme entails illuminating the photoreceptor with a series of light pulses propagating from an LCoS, in which the durations of the light pulses and their positions in time combine to produce binary-weighted equivalent rms voltages on the photoreceptor. The light pulses originate from a light-emitting diode or other switchable light source, and the timing of the light pulses is controlled such that they are emitted only when the associated LCoS is in a stable state. Emitting light pulses while the LCoS is in a stable state avoids non-monotonic behavior.