Sony Corporation

Sony Electronics Inc

Other

Microvision, Inc.

Microsoft Technology Licensing, LLC

Sony Electronics Inc., a Delaware Corporation

Sony Corporation, a Japanese Corporation

Mark Alan Champion

Brian Dockter

Robert Allan Unger

Robert Hardacker

Margaret K Brown

Mark O Freeman

Algird Michael Gudaitis

David H Bessel

Heng Huang

Shawn Michael Swilley

Bruce Rothaar

Kelly D Linden

Micheale Rathbun McKay

Donald Brian Moore

Aarti Raghavan

Ranveer Chandra

Joshua Owen Miller

Wyatt Owen Davis

Yoshiyuki Akiyama

Jonathan Alan Dutra

P Selvan Viswanathan

Robert James Jackson

Christian Dean DeJong

Lev Cherkashin

Sam Sarmast

Utku Baran

Shuvendu K Lahiri

Gregory Theodore Gibson

Michael James Nystrom

Eric Paul Filer

Maciej Jakuc

Bruce C Rothaar

Steve Holmes

David Lashmet

Michael Lee Schaaf

Harpal Singh Sira

Lakhbir Gandhi

Michael L Schaaf

Katsura Kodama

Jinghao Shi

David Bessel

Examples are disclosed herein related to controlling a scanning mirror system. One example provides a display device, comprising a light source, a scanning mirror system configured to scan light from the light source in a first direction at a first, higher scan rate, and in a second direction at a second, lower scan rate, and a drive circuit configured to control the scanning mirror system to display video image data by providing a control signal to the scanning mirror system to control scanning in the second direction, and for each video image data frame of at least a subset of video image data frames, combining the control signal with an adjustment signal to adjust the scanning in the second direction, the adjustment signal comprising a low pass filtered signal with a cutoff frequency based on a lowest resonant frequency of the scanning mirror system in the second direction.

Synchronizing scanning display with video

Examples are disclosed that relate to scanning display systems. One example provides a display device comprising a controller, a light source, and a scanning mirror system. The scanning mirror system comprises a scanning mirror configured to scan light from the light source in at least one direction at a resonant frequency of the scanning mirror, and an electromechanical actuator system coupled with the scanning mirror and being controllable by the controller to adjust the resonant frequency of the scanning mirror.

Adjusting a resonant frequency of a scanning mirror

The description relates to laser control. One example can include a laser that has a laser emitter configured to generate a laser beam for intervals of time (e.g., pixel times). The laser can have a compensation and control component configured to receive a predicted laser emitter temperature of the laser emitter, obtain a desired optical power for an interval, and compute a compensated electrical current for the interval utilizing multiple light to current look up tables. Individual light to current look up tables can relate to specific laser emitter temperatures.

Laser control

Various technologies described herein pertain to collocating a signal processing device with a micromechanical scanning silicon mirror as part of an apparatus. The micromechanical scanning silicon mirror and the signal processing device are part of separate dies. According to various embodiments, the apparatus can include wire bonds directly between sensor contacts of the micromechanical scanning silicon mirror and the signal processing device; the signal processing device can be mounted on a printed circuit board or mounted on or adjacent to the micromechanical scanning silicon mirror. Pursuant to other embodiments, the signal processing device can be mounted on the micromechanical scanning silicon mirror (e.g., mounted on a foot) and electrically coupled to sensor contacts of the micromechanical scanning silicon mirror (e.g., via wire bonds between the sensor contacts and the signal processing device or connectors that both mechanically and electrically connect the micromechanical scanning silicon mirror and the signal processing device).

Colocating signal processing device with micromechanical scanning silicon mirror

The devices and methods for data compression of the present disclosure provide a relatively simple and resource efficient mechanism for compressing digital data by generating a reduced data sequence that either represents a relatively substantial amount of a current value of a current binary data based on some part of the original binary data, or that represents an adjustment to a previous value of previous digital data, which enables a receiver to construct the current value.

System and method for digital compression for streaming data

Techniques for providing an enhanced resonant circuit amplifier are described herein. Using a capacitor to couple the drive to the resonant circuit can be problematic because the current flows the same direction with every energy burst, which causes the coupling capacitor to charge up and stop injecting energy into the resonant circuit. To solve this issue, embodiments disclosed herein add a burst of energy once every half cycle. This reduces distortion in the resonant energy. A second benefit is the ability to 'push in' and 'pull out' energy from the resonant circuit, which can prevent the capacitor from charging up and allow a resonant circuit amplifier to continually produce a symmetric, stable output. In addition, a controller can dynamically modify a number of aspects of an output, e.g., an amplitude and/or a DC bias, by modifying the duty cycle of an input signal.

Enhanced resonant circuit amplifier

The description relates to wireless protocol verification. One example can obtain information relating to a wireless protocol and receive information relating to wireless communications associated with a wireless device. The example can compare the wireless communications with the wireless protocol and generate a verification report that conveys whether the wireless communications comply with the wireless protocol.

Verification of a wireless protocol implementation

Briefly, in accordance with one or more embodiments, a display is powered on to display a projected image, and the operation of one or more display elements are ramped up until a stabilized state is reached. During said ramping up, a light source of the display is powered display at less than full power until the stabilized state is reached. While the light source is operating at less than full power, a splash screen may be displayed. After the stabilized state is reached, the light source can then be operated at or near full power. By providing a light output that is less than full power during ramp up, the display does not need to wait until the stabilized state is reached before the light source is powered on. As a result, the projector provides an output earlier in time to cue to the user that the projector is operating.

Controlled light source startup in a display

A scanning projector includes a scanning mirror that sweep a beam in two dimensions. The beam is created by multiple laser light sources, at least two of which create light at substantially the same wavelength. The two light sources at the same wavelength may be driven at different times, or may be driven simultaneously (equally or unequally).

Dual laser drive method. apparatus, and system

A display system includes a substrate guided relay and a scanning projector. The scanning projector exhibits a brightness variation on a resonant scanning axis, and the substrate guided relay exhibits a brightness variation along a length of an output coupler. The scanning projector includes a brightness compensation circuit to compensate for both the brightness variation caused by the resonant scanning and the brightness variation along the length of the output coupler.

Substrate guided relay with image compensation

Briefly, in accordance with one or more embodiments, an image or projection cone is projected onto a projection surface via a raster scan to generate the image, or in a light cone. Movements of two or more input sources with respect to projection cone are detected, and a determination is made whether the input sources have crossed a crossover line in the projection cone. If the input sources have moved greater than a threshold amount after crossing the crossover line, position data between the input sources may be exchanged to reflect proper position data for the input sources.

Multipoint source detection in a scanned beam display

A scanning projector includes a scanning mirror that sweep a beam in two dimensions. Tangential distortion in a fast-scan dimension is compensated by incorporating a tangent function when determining the light beam location and interpolating pixel data. Tangential distortion in a slow-scan dimension is compensated by driving the scanning mirror nonlinearly in the slow scan dimension such that the light beam sweeps across the display surface at a constant rate.

Scanning projection apparatus with tangential compensation

The luminance of a laser diode is a function of laser diode drive current. The luminance is also a function of other factors, such as age and temperature. A laser projection device includes laser diodes to generate light in response to a commanded luminance, and also includes photodiodes to provide a measured luminance. The commanded luminance and measured luminance are compared, and drive currents for the laser diodes are adjusted to compensate for changes in laser diode characteristics.

Method and apparatus for laser diode compensation

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Kenmore, WA, United States of America

Mark Alan Champion