Hewlett-packard Development Company, L.p.

Matthew J Gelhaus

Eric T Martin

Adam L Ghozeil

James Richard Przybyla

Arthur Piehl

Mark Hunter

Wiatt E Kettle

Leslie Louis Szepesi, Jr

Winthrop D Childers

David C Collins

Brett E Dahlgren

Bruce A Stephens

Jose Miguel Rodriguez

Matthew James West

Carlos Millan-Lorman

Art Piehl

Jim Przybyla

In example implementations, a fluid ejection system is provided. The fluid ejection system includes a plurality of fluid ejection devices, a sensor and a feedback system. The plurality of fluid ejection devices can distribute fluid onto a media. The sensor may analyze a line of an image formed by the fluid on the media. The feedback system can determine a respective amount of time delay for each one of the plurality of fluid ejection devices based on the line of the image on the media that is analyzed by the sensor. The respective amount of time delay is inserted into at least one sideband signal to provide a correct alignment of the fluid ejection devices when printing a subsequent line of the image on the media.

Sideband signal for fluid ejection

A printing system includes an identification module to identify a number of the encoder pulses generated by an encoder at a rate corresponding to a speed of a media during a time interval. The printing system also includes an alignment module to at least one of change the number of encoder pulses or scale the encoder pulses generated by the encoder based on an amount of variation between the number of encoder pulses detected and the number of encoder pulses to maintain the number of encoder pulses constant.

Alignment module used in printing

A method is disclosed for spreading a non-periodic color signal sent to a spatial light modulator across a frame period. The method can include the operation of dividing a frame period into a plurality of time slices. A further operation can be assigning a color to each of the plurality time slices. Another operation can be interleaving one or more colors assigned to the time slices across the frame period in a non-periodic manner.

System and method for spreading a non-periodic signal for a spatial light modulator

One embodiment provides a method that includes displaying Boolean combinations of two or more bit planes.

Hybrid data planes

Disclosed are embodiments of a system and method for processing an image. An image processing unit includes a processor unit and a control unit. The processor unit receives an incoming video signal. The control unit defines image frames from the video signal. The image frames have bit planes in a plurality of spatial segments for manifestation on a spatial light modulator. The control unit also defines on and off states for a solid state light source. The control unit modulates the solid state light source at a modulated level during at least one bit plane such that illumination of the solid state light source at the modulated level is equally applied during the at least one bit plane for each of the plurality of spatial segments.

Image display system and method

A charge control circuit for controlling a micro-electromechanical system (MEMS) device having variable capacitor formed by first conductive plate and a second conductive plate separated by a variable gap distance. The charge control circuit comprises a switch circuit configured to receive a reference voltage having a selected voltage level and configured to respond to an enable signal having a duration at least as long as an electrical time constant constant of the MEMS device, but shorter than a mechanical time constant of the MEMS device, to apply the selected voltage level across the first and second plates for the duration to thereby cause a stored charge having a desired magnitude to accumulate on the variable capacitor, wherein the variable gap distance is a function of the magnitude of the stored charge.

Charge control of micro-electromechanical device

A light delivery device defining an optical path with a feedback device is disclosed. The feedback device dispatches actual illumination characteristics of the light delivery device to a control system, which compares the actual illumination characteristics with desired illumination characteristics to determine an offset for driving the light delivery device.

Growing community of inventors

Albany, OR, United States of America

Matthew J Gelhaus