Poa Sana Liquidating Trust

Poa Sana, Inc.

Other

Poa Sona, Inc.

David S Graham

Daniel A Francis

Guolin Ma

David Schleuning

Warren Hale Lewis

A touch screen or pen-based data entry apparatus and method. The data entry apparatus creates a continuous sheet or 'lamina' of light in the free space adjacent a touch screen. An optical position detection device, optically coupled to the lamina of light, is provided to detect data entries to the input device by determining the location of interrupts in the lamina caused when data is entered to the input device. During the method of operation, a user makes a data entry to the device by touching the screen at a predetermined location using an input device, such as a finger, pen or stylus. During the act of touching the screen, the lamina of light in the free space adjacent the screen is interrupted. The optical position detection device detects the position of the input based on the location of the interrupt. Based on the determined position, the data entry is determined.

Apparatus and method for a data input device using a light lamina screen

An apparatus and method for an inexpensive, simple to make, self-aligning molded waveguide made of an optically transparent material and that can be used to generate a grid or lamina of light for use with touch screen displays. The molded waveguide substrate includes a plurality of lenses and a plurality of waveguide grooves corresponding to the plurality of integral lenses respectively. After the substrate is molded, the grooves are filled with an optically transparent material to optically couple and align the plurality of lenses and the plurality of grooves respectively. In one application, the molded waveguide substrate is positioned adjacent a touch screen device. A light transmitter and an imaging device are optically coupled to the molded waveguide substrate, and a processing device is coupled to the imaging device. The processing device is configured to determine a data entry to the touch screen by deciphering the coordinates of an interrupt in the light created in the free space adjacent the touch screen device when a data entry is being made to the touch screen device.

Apparatus and method for a molded waveguide for use with touch screen displays

An apparatus and method for generating a lamina of light. The apparatus includes an optically transparent member having an input configured to receive light and one or more facets formed in the optically transparent member. As light enters and travels through the member, a lamina of light is created by the light reflecting off the facets. In one application, the lamina of light is provided in the free space adjacent a touch screen display. When the lamina is interrupted during a data entry operation to the screen, an optical position detection device is used to determine the data input based on the location of the interrupt in the lamina. In various other embodiments, the position and uniformity of the lamina may be controlled by selecting the angle, depth and tilt of a reflective surface of the facets in the optically transparent member.

Apparatus and method for generating a lamina of light

A user input device for an electronic device is disclosed. The user input device provides positional information using a grid of light. The grid of light is produced from a light source and waveguides. The grid of light is also received and processed using waveguides and a light detector. Optionally, optics may be used to enhance the operation of the user input device. The user input device is particularly suited for use as a user input device for a computer system or the like.

User input device for a computer system

XY position digitizer,has an X send substrate,X with an associated X receive substrate,X, and a Y send substrate,Y with an associated Y receive substrate,Y, defining free space region,F therebetween. Send waveguides,X are embedded in the X send substrate and send waveguides,Y are embedded in the Y send substrate. The send waveguides sends an array of send light beams,X across the free space region to the X receive substrate. The send waveguides likewise sends an array of send light beams,Y across the free space region to the Y receive substrate. Receive waveguides,X are embedded in the X receive substrate and receive waveguides,Y are embedded in the Y receive substrate in correspondence with the X and Y send waveguides. Each receive waveguide receives at least a portion of the light beam from the corresponding send waveguide. An array of X send optical systems,X are embedded in the X send substrate. One send optical system is in precise optical alignment with each send waveguide, for enhancing the collimation of the constrained send light from that aligned send waveguide.

Position digitizer waveguide array with integrated collimating optics

A suspension system for a seat for a vehicle having a base frame rigidly attached to the vehicle. The front of a seat support frame is pivotally moveable with respect to the base frame. Springs mounted between the seat support frame and the base frame cushion the seat from forces imparted while driving the vehicle on irregular surfaces. The springs further limit the pivotal movement of the seat support frame with respect to the base frame. There are shock absorbers for dissipating energy absorbed by the springs. The pivotal movement of the seat is around two different axes of rotation, one of the axes being a horizontal axis extending across the width of the vehicle and the other axis being a longitudinal axis extending from the front to the rear of the vehicle.

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Mountain View, CA, United States of America

David S Graham