Abstract: A non-spectral computed tomography scanner includes a radiation source configured to emit x-ray radiation, a detector array configured to detect x-ray radiation and generate non-spectral data, and a memory configured to store a spectral image module that includes computer executable instructions including a neural network trained to produce spectral volumetric image data. The neural network is trained with training spectral volumetric image data and training non-spectral data. The non-spectral computed tomography scanner further includes a processor configured to process the non-spectral data with the trained neural network to produce spectral volumetric image data.

Abstract: A positron emission tomography (PET) imaging device (10) includes a plurality of PET detector modules (18); and a robotic gantry (20) operatively connected to the PET detector modules. The robotic gantry is configured to control a position of each PET detector module along at least two of an axial axis, a radial axis, and a tangential axis of the corresponding PET detector module.

Abstract: In one embodiment, a pneumatic distribution system configured to distribute a granular product to an agricultural implement includes a first pressure sensor, a second pressure sensor, and a controller. The first pressure sensor is configured to be fluidly coupled to a storage tank configured to store the granular product and positioned upstream of the meter roller. The first pressure sensor is configured to output a first signal indicative of a first static pressure in the storage tank. The second pressure sensor is configured to be fluidly coupled to a component of the pneumatic distribution system, downstream of the meter roller. The second pressure sensor is configured to output a second signal indicative of a second static pressure downstream of the meter roller. The controller is communicatively coupled to the first pressure sensor and to the second pressure sensor.

Abstract: In one embodiment, a pneumatic distribution system configured to distribute a granular product to an agricultural implement includes a first pressure sensor, a second pressure sensor, and a controller. The first pressure sensor is configured to be fluidly coupled to a storage tank configured to store the granular product and positioned upstream of the meter roller. The first pressure sensor is configured to output a first signal indicative of a first static pressure in the storage tank. The second pressure sensor is configured to be fluidly coupled to a component of the pneumatic distribution system, downstream of the meter roller. The second pressure sensor is configured to output a second signal indicative of a second static pressure downstream of the meter roller. The controller is communicatively coupled to the first pressure sensor and to the second pressure sensor.

Abstract: In one embodiment, a pneumatic distribution system configured to distribute a granular product to an agricultural implement includes a first pressure sensor, a second pressure sensor, and a controller. The first pressure sensor is configured to be fluidly coupled to a storage tank configured to store the granular product and positioned upstream of the meter roller. The first pressure sensor is configured to output a first signal indicative of a first static pressure in the storage tank. The second pressure sensor is configured to be fluidly coupled to a component of the pneumatic distribution system, downstream of the meter roller. The second pressure sensor is configured to output a second signal indicative of a second static pressure downstream of the meter roller. The controller is communicatively coupled to the first pressure sensor and to the second pressure sensor.

Abstract: In one embodiment, a pneumatic distribution system configured to distribute a granular product to an agricultural implement includes a first pressure sensor, a second pressure sensor, and a controller. The first pressure sensor is configured to be fluidly coupled to a storage tank configured to store the granular product and positioned upstream of the meter roller. The first pressure sensor is configured to output a first signal indicative of a first static pressure in the storage tank. The second pressure sensor is configured to be fluidly coupled to a component of the pneumatic distribution system, downstream of the meter roller. The second pressure sensor is configured to output a second signal indicative of a second static pressure downstream of the meter roller. The controller is communicatively coupled to the first pressure sensor and to the second pressure sensor.

Abstract: An image generator having an illuminator, a reflective display device (in one embodiment) and a beamsplitter which produces a virtual image of an image created in a light modulating medium on said reflective display device. In one embodiment, the image generator is a miniature image generator for a relatively small, lightweight head-mounted display which provides a magnified virtual image which is viewed by a viewer. The beamsplitter is optically coupled to the reflective display device. The beamsplitter comprises a film having a plurality of layers including at least a first layer which comprises an oriented birefringent material. The beamsplitter has a wide angle of acceptance.

Abstract: A controlled angle retarder and method for making is presented. In one embodiment, the invention is a liquid crystal display. The liquid crystal display includes a liquid crystal cell having an extraordinary axis. The liquid crystal display also includes a first retarder connected to the liquid crystal cell, the first retarder having an extraordinary axis. The extraordinary axis of the first retarder is aligned at an angle to the extraordinary axis of the liquid crystal cell; the angle is sufficient to produce a desired effective retardance of the first retarder within the display different from a specified retardance of the first retarder. The invention in an alternate embodiment is a method of making a liquid crystal display (LCD). The method includes measuring a retardance of a retarder.

Abstract: A display device operable to generate images and a border image is disclosed. The display device in one example of the invention comprises an electrode structure coupled to a spatial light modulator display layer. The electrode structure is configured to define an active display area. The display also comprises a first electrode surrounding the electrode structure and a second electrode coupled to the spatial light modulator display layer. The second electrode is located above the first electrode and a voltage difference between the second electrode and the first electrode is used to generate the border image.

Abstract: A controlled angle retarder and method for making is presented. In one embodiment, the invention is a liquid crystal display. The liquid crystal display includes a liquid crystal cell having an extraordinary axis. The liquid crystal display also includes a first retarder connected to the liquid crystal cell, the first retarder having an extraordinary axis. The extraordinary axis of the first retarder is aligned at an angle to the extraordinary axis of the liquid crystal cell; the angle is sufficient to produce a desired effective retardance of the first retarder within the display different from a specified retardance of the first retarder.

Abstract: A controlled angle retarder and method for making same is presented. In one embodiment, the invention is a liquid crystal display. The liquid crystal display includes a liquid crystal cell having an extraordinary axis. The liquid crystal display also includes a first retarder connected to the liquid crystal cell, the first retarder having an extraordinary axis. The extraordinary axis of the first retarder is aligned at an angle to the extraordinary axis of the liquid crystal cell. This angle is sufficient to produce a desired effective retardance of the first retarder within the display different from a specified retardance of the first retarder.

Abstract: Methods and systems for operating a display system. An example of the display system includes a first substrate having a plurality of pixel electrodes, an electro-optic layer operatively coupled to the pixel electrodes and an electrode operatively coupled to said electro-optic layer. In one example of a method of the invention, a first plurality of pixel data values is applied to the plurality of pixel electrodes. A first control voltage is applied to the electrode to alter a state of the electro-optic layer such that the first pixel data represented by the first plurality of pixel data values is substantially not displayed. A second plurality of pixel data values, representing a second pixel data, is applied to the plurality of pixel electrodes, and a second control voltage is applied to the electrode to alter the state of the electro-optic layer such that the second pixel data is displayed.

Abstract: An image generator having an illuminator, a reflective display device (in one embodiment) and a beamsplitter which produces a virtual image of an image created in a light modulating medium on said reflective display device. In one embodiment, the image generator is a miniature image generator for a relatively small, lightweight head-mounted display which provides a magnified virtual image which is viewed by a viewer. The beamsplitter is optically coupled to the reflective display device. The beamsplitter comprises a film having a plurality of layers including at least a first layer which comprises an oriented birefringent material. The beamsplitter has a wide angle of acceptance.

Abstract: Methods and systems for operating a display system. An example of the display system includes a first substrate having a plurality of pixel electrodes, an electro-optic layer operatively coupled to the pixel electrodes and an electrode operatively coupled to said electro-optic layer. In one example of a method of the invention, a first plurality of pixel data values is applied to the plurality of pixel electrodes. A first control voltage is applied to the electrode to alter a state of the electro-optic layer such that the first pixel data represented by the first plurality of pixel data values is substantially not displayed. A second plurality of pixel data values, representing a second pixel data, is applied to the plurality of pixel electrodes, and a second control voltage is applied to the electrode to alter the state of the electro-optic layer such that the second pixel data is displayed.

Abstract: Methods and apparatuses for display systems which modulate a control electrode to cause an electro-optic layer to be reset to a state in which display data is not viewable. In one embodiment of the invention, a display system includes a first substrate having a first plurality of pixel electrodes for receiving a first plurality of pixel data values representing a first image to be displayed. The display system further includes an electro-optic layer which is operatively coupled to the pixel electrodes and an electrode operatively coupled to the electro-optic layer. The display system displays the first image and then applies a first control voltage to the electrode to alter a state of the electro-optic layer such that the first image substantially not displayed and then the display system displays a second image represented by a second plurality of pixel data values after the electrode receives a second control voltage. Various other apparatuses and methods are described.

Abstract: Methods and systems for operating a display system. An example of the display system includes a first substrate having a plurality of pixel electrodes, an electro-optic layer operatively coupled to the pixel electrodes and an electrode operatively coupled to said electro-optic layer. In one example of a method of the invention, a first plurality of pixel data values is applied to the plurality of pixel electrodes. A first control voltage is applied to the electrode to alter a state of the electro-optic layer such that the first pixel data represented by the first plurality of pixel data values is substantially not displayed. A second plurality of pixel data values, representing a second pixel data, is applied to the plurality of pixel electrodes, and a second control voltage is applied to the electrode to alter the state of the electro-optic layer such that the second pixel data is displayed.

Abstract: Methods and apparatuses for display systems which modulate a control electrode to cause an electro-optic layer to be reset to a state in which display data is not viewable. In one embodiment of the invention, a display system includes a first substrate having a first plurality of pixel electrodes for receiving a first plurality of pixel data values representing a first image to be displayed. The display system further includes an electro-optic layer which is operatively coupled to the pixel electrodes and an electrode operatively coupled to the electro-optic layer. The electro-optic layer comprises a polymer dispersed liquid crystal material. The display system displays the first image and then applies a first control voltage to the electrode to alter a state of the electro-optic layer such that the first image substantially not displayed and then the display system displays a second image represented by a second plurality of pixel data values after the electrode receives a second control voltage.

Abstract: Methods and apparatuses for display systems which modulate a control electrode to cause an electro-optic layer to be reset to a state in which display data is not viewable. In one embodiment of the invention, a display system includes a first substrate having a first plurality of pixel electrodes for receiving a first plurality of pixel data values representing a first image to be displayed. The display system further includes an electro-optic layer which is operatively coupled to the pixel electrodes, a control device coupled to at least one of the pixel electrodes and an electrode operatively coupled to the electro-optic layer. The display system displays the first image and then applies a first control voltage to the electrode to alter a state of the electro-optic layer such that the first image is substantially not displayed and then the display system displays a second image represented by a second plurality of pixel data values after the electrode receives a second control voltage.

Abstract: Methods and apparatuses for display systems which modulate a control electrode to cause an electro-optic layer to be reset to a state in which display data is not viewable. In one embodiment of the invention, a display system includes a first substrate having a first plurality of pixel electrodes for receiving a first plurality of pixel data values representing a first image to be displayed. The display system further includes an electro-optic layer which is operatively coupled to the pixel electrodes and an electrode operatively coupled to the electro-optic layer. The display system displays the first image and then applies a first control voltage to the electrode to alter a state of the electro-optic layer such that the first image substantially not displayed and then the display system displays a second image represented by a second plurality of pixel data values after the electrode receives a second control voltage. Various other apparatuses and methods are described.

Abstract: Methods and systems for operating a display system. An example of the display system includes a first substrate having a plurality of pixel electrodes, an electro-optic layer operatively coupled to the pixel electrodes and an electrode operatively coupled to said electro-optic layer. In one example of a method of the invention, a first plurality of pixel data values is applied to the plurality of pixel electrodes. A first control voltage is applied to the electrode to alter a state of the electro-optic layer such that the first pixel data represented by the first plurality of pixel data values is substantially not displayed. A second plurality of pixel data values, representing a second pixel data, is applied to the plurality of pixel electrodes, and a second control voltage is applied to the electrode to alter the state of the electro-optic layer such that the second pixel data is displayed.