Abstract: A device includes a first compensation circuit configured to adjust an analog front end (AFE) output to generate a first adjusted AFE output, a first data slicer configured to output a first voltage based on the first adjusted AFE output. The first compensation circuit includes a first path between a voltage source and a ground, including a first transistor, a first adjustable current source, a first input voltage node configured to receive the AFE output, and a first output voltage node coupled to the first data slicer, a second path between the voltage source and the ground, including a second transistor, a second adjustable current source, a second input voltage node configured to receive the AFE output, and a second output voltage node coupled to the second data slicer, and a configurable resistance resistor and a configurable capacitance capacitor coupled in parallel across the first path and the second path.

Abstract: The application discloses a classification method and a system of UAV hyperspectral vegetation species based on a deep learning, where the method includes the following steps: collecting hyperspectral images by a UAV; preprocessing collected hyperspectral images to obtain preprocessed images, and performing a stitching mosaicking preprocessing on the preprocessed images to obtain hyperspectral orthoimages; labeling the hyperspectral orthoimages to obtain a label data set; performing a vegetation index fusion on the hyperspectral orthoimages to obtain vegetation index-hyperspectral orthoimages; constructing a grassland vegetation classification model based on the vegetation index-hyperspectral orthoimages and the label data set, and completing a vegetation species classification by using the grassland vegetation classification model.

Abstract: A device includes a first compensation circuit configured to adjust an analog front end (AFE) output to generate a first adjusted AFE output, a first data slicer configured to output a first voltage based on the first adjusted AFE output. The first compensation circuit includes a first path between a voltage source and a ground, including a first transistor, a first adjustable current source, a first input voltage node configured to receive the AFE output, and a first output voltage node coupled to the first data slicer, a second path between the voltage source and the ground, including a second transistor, a second adjustable current source, a second input voltage node configured to receive the AFE output, and a second output voltage node coupled to the second data slicer, and a configurable resistance resistor and a configurable capacitance capacitor coupled in parallel across the first path and the second path.

Abstract: A data slicer may include an input transistor configured to generate an internal output voltage based on an input voltage at an input node. An output node may be configured to output an output voltage based on the internal output voltage, and a feedback transistor may be configured to adjust the internal output voltage based on a correction voltage corresponding to output of the output node in a previous cycle.

Abstract: A device includes a first compensation circuit configured to adjust an analog front end (AFE) output to generate a first adjusted AFE output, a first data slicer configured to output a first voltage based on the first adjusted AFE output. The first compensation circuit includes a first path between a voltage source and a ground, including a first transistor, a first adjustable current source, a first input voltage node configured to receive the AFE output, and a first output voltage node coupled to the first data slicer, a second path between the voltage source and the ground, including a second transistor, a second adjustable current source, a second input voltage node configured to receive the AFE output, and a second output voltage node coupled to the second data slicer, and a configurable resistance resistor and a configurable capacitance capacitor coupled in parallel across the first path and the second path.

Abstract: A data slicer may include an input transistor configured to generate an internal output voltage based on an input voltage at an input node. An output node may be configured to output an output voltage based on the internal output voltage, and a feedback transistor may be configured to adjust the internal output voltage based on a correction voltage corresponding to output of the output node in a previous cycle.

Abstract: Aspects for active alignment for assembling optical imaging systems are described herein. As an example, the aspects may include aligning an optical detector with an optical component. The optical component is configured to alter a direction of one or more light beams emitted from an image displayed by an optical engine. The aspects may further include detecting, by the optical detector, a virtual image generated by the one or more light beams emitted by the optical engine; and adjusting, by a multi-axis controller, an optical path of the one or more light beams based on one or more parameters of the virtual image collected by the optical detector.

Abstract: Aspects for active alignment for assembling optical imaging systems are described herein. As an example, the aspects may include aligning an optical detector with an optical component. The optical component is configured to alter a direction of one or more light beams emitted from an image displayed by an optical engine. The aspects may further include detecting, by the optical detector, a virtual image generated by the one or more light beams emitted by the optical engine; and adjusting, by a multi-axis controller, an optical path of the one or more light beams based on one or more parameters of the virtual image collected by the optical detector.

Abstract: Aspects for active alignment for assembling optical imaging systems are described herein. As an example, the aspects may include aligning an optical detector with an optical component. The optical component is configured to alter a direction of one or more light beams emitted from an image displayed by an optical engine. The aspects may further include detecting, by the optical detector, a virtual image generated by the one or more light beams emitted by the optical engine; and adjusting, by a multi-axis controller, an optical path of the one or more light beams based on one or more parameters of the virtual image collected by the optical detector.

Abstract: Aspects for active alignment for assembling optical imaging systems are described herein. As an example, the aspects may include aligning an optical detector with an optical component. The optical component is configured to alter a direction of one or more light beams emitted from an image displayed by an optical engine. The aspects may further include detecting, by the optical detector, a virtual image generated by the one or more light beams emitted by the optical engine; and adjusting, by a multi-axis controller, an optical path of the one or more light beams based on one or more parameters of the virtual image collected by the optical detector.

Abstract: Aspects for active alignment for assembling optical imaging systems are described herein. As an example, the aspects may include aligning an optical detector with an optical component. The optical component is configured to alter a direction of one or more light beams emitted from an image displayed by an optical engine. The aspects may further include detecting, by the optical detector, a virtual image generated by the one or more light beams emitted by the optical engine; and adjusting, by a multi-axis controller, an optical path of the one or more light beams based on one or more parameters of the virtual image collected by the optical detector.

Abstract: An ultra-rapid method for the isolation and purification of high molecular weight hyaluronic acid (HA) from the skin of reptiles (rHA). The method utilizes an extraction buffer that inhibits unwanted hyaluronidases, filtration to remove cell debris and precipitated proteins, and a highly substituted anion exchange column at a low pH with a high salt elution to maximize the yield and purity of rHA per kilogram of skin. rHA is extremely charged and elutes between 1.6-3M NaCl. Our findings suggest that rHA is high molecular weight (>2 mDa) and has a profound ability to enhance cell migration and proliferation for wound repair and regeneration. Preliminary evidence suggests that scaffolds of rHA are ideal for biomaterial engineering that could be incorporated into several medical devices and pharmaceutical products.

Abstract: Disclosed is a robot structure, comprising: a cylindrical body, a hemispherical top portion and a bottom portion; an accommodation chamber provided inside the body; a main board horizontally arranged in the top portion; a pickup module horizontally arranged in the top portion and located above the main board, a connecting wire connects the main board and pickup board; a fixing bracket arranged in the middle of the accommodation chamber and close to one side of the body; a projection module arranged on the fixing bracket and located below the main board, and connected to the main board through a connecting wire; a pair of speakers arranged in the bottom portion and respectively connected to the main board through a connecting wire; and a power module in the bottom portion below the pair of speakers, and connected to the main board through a connecting wire.

Abstract: Aspects for active alignment for assembling optical imaging systems are described herein. As an example, the aspects may include aligning an optical detector with an optical component. The optical component is configured to alter a direction of one or more light beams emitted from an image displayed by an optical engine. The aspects may further include detecting, by the optical detector, a virtual image generated by the one or more light beams emitted by the optical engine; and adjusting, by a multi-axis controller, an optical path of the one or more light beams based on one or more parameters of the virtual image collected by the optical detector.

Abstract: The invention discloses a display system of a robot. The robot's housing comprises: a main body having an annular curved surface; a top portion, located above and integral with the main body, and having a curved surface protruding upwards; and a base located below and connected to the main body. A display system located inside the housing comprises a receiving unit configured to receive a video signal; a screen embedded at the housing's surface; a projection unit, located opposite to the screen, and configured to project an image onto a back side of the screen; and a cover disposed between the projection unit and the screen and having a conical shape, wherein a narrow end of the cover is connected to the projection unit, a wide end of the cover is connected to the screen, and the wide end's exterior shape matches the screen's peripheral size.

Abstract: A comparator. The comparator includes two back-to-back inverters, a differential pair, and a first common mode compensation transistor. The differential pair has two outputs configured to receive respective series currents from, or supply respective series currents to, the back-to-back inverters. The first common mode compensation transistor is configured to supply a compensating current to, or draw a compensating current from, a first output of the two outputs of the differential pair.

Abstract: An on-chip scope and a method for operating the on-chip scope. The on-chip scope includes a provision for operating in one of two states, the effects of voltage offsets being different in the two states. A first voltage is measured in the first state, a second voltage is measured in the second state, and the two measurements are combined to generate a voltage estimate in which the effects of voltage offsets are reduced.

Abstract: An on-chip scope and a method for operating the on-chip scope. The on-chip scope includes a provision for operating in one of two states, the effects of voltage offsets being different in the two states. A first voltage is measured in the first state, a second voltage is measured in the second state, and the two measurements are combined to generate a voltage estimate in which the effects of voltage offsets are reduced.

Abstract: The invention discloses a display system of a robot. The robot's housing comprises: a main body having an annular curved surface; a top portion, located above and integral with the main body, and having a curved surface protruding upwards; and a base located below and connected to the main body. A display system located inside the housing comprises a receiving unit configured to receive a video signal; a screen embedded at the housing's surface; a projection unit, located opposite to the screen, and configured to project an image onto a back side of the screen; and a cover disposed between the projection unit and the screen and having a conical shape, wherein a narrow end of the cover is connected to the projection unit, a wide end of the cover is connected to the screen, and the wide end's exterior shape matches the screen's peripheral size.

Abstract: Disclosed is a robot structure, comprising: a cylindrical body, a hemispherical top portion and a bottom portion; an accommodation chamber provided inside the body; a main board horizontally arranged in the top portion; a pickup module horizontally arranged in the top portion and located above the main board, a connecting wire connects the main board and pickup board; a fixing bracket arranged in the middle of the accommodation chamber and close to one side of the body; a projection module arranged on the fixing bracket and located below the main board, and connected to the main board through a connecting wire; a pair of speakers arranged in the bottom portion and respectively connected to the main board through a connecting wire; and a power module in the bottom portion below the pair of speakers, and connected to the main board through a connecting wire.