Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have a pixel array that produces light associated with images. The display system may also have a linear polarizer through which light from the pixel array passes and a quarter wave plate through which the light passes after passing through the quarter wave plate. The optical system may be a catadioptric optical system having one or more lens elements. The lens elements may include a plano-convex lens and a plano-concave lens. A partially reflective mirror may be formed on a convex surface of the plano-convex lens. A reflective polarizer may be formed on the planar surface of the plano-convex lens or the concave surface of the plano-concave lens. An additional quarter wave plate may be located between the reflective polarizer and the partially reflective mirror.

Abstract: Provided is a method and device for remotely controlling a household appliance. The method includes: sending, by a social application client, a control command for a target household appliance, wherein the control command includes an account of the target household appliance, and the account of the target household appliance is a unique social account registered in a social application server when the target household appliance leaves a factory; and controlling, by the social application client, the target household appliance corresponding to the account of the target household appliance according to the control command. A user can directly control the household appliance through the social application client, thus improving the efficiency of controlling the household appliance and reducing the cost.

Abstract: For selective local registration based on registration error, a method determines a first registration error between a template image and a source image. The method further warps the source image to compensate for camera motion in response to the first registration error exceeding a registration error threshold. In addition, the method determines a second registration error between the template image and the warped source image. The method generates a pixel difference mask using the template image. The method further selectively performs local registration for the source image based on the pixel difference mask in response to the second registration error exceeding the registration error threshold.

Abstract: A head-mounted display may include a display system and an optical system in a housing. The display system may have a pixel array that produces light associated with images. The display system may also have a linear polarizer through which light from the pixel array passes and a quarter wave plate through which the light passes after passing through the quarter wave plate. The optical system may be a catadioptric optical system having one or more lens elements. The lens elements may include a plano-convex lens and a plano-concave lens. A partially reflective mirror may be formed on a convex surface of the plano-convex lens. A reflective polarizer may be formed on the planar surface of the plano-convex lens or the concave surface of the plano-concave lens. An additional quarter wave plate may be located between the reflective polarizer and the partially reflective mirror.

Abstract: The invention relates to a general chemical method for the synthesis of biocompatible hybrid nanomaterials which can be used in the development of new-type enzyme based biosensors. A one-step facile method is presented, in which polyethylenimine (PEI) serves as both a reducing agent for the reduction of graphene oxide (GO) into reduced graphene oxide (RGO) and a biological matrix for accommodation of enzymes.

Abstract: The present application provides an image processing circuit, a hand-held electronic device and a method for compensating for motion in an image received by an image sensor. The method includes sub-dividing an array of individual sensor cells from an image sensor adapted for receiving an image into at least a first sub-group and a second sub-group of sensor cells. Multiple timing signals are then generated for use in reading data out of the individual sensor cells of the image sensor. Data values are then read out from the individual sensor cells, wherein the data values from the individual sensor cells of the first sub-group of sensor cells are read out at a first rate using a first timing signal, and the data values from the individual sensor cells of the second sub-group of sensor cells are read out at a second rate using a second timing signal.

Abstract: The present application provides an image processing circuit, a hand-held electronic device and a method for compensating for motion in an image received by an image sensor. The method includes sub-dividing an array of individual sensor cells from an image sensor adapted for receiving an image into at least a first sub-group and a second sub-group of sensor cells. Multiple timing signals are then generated for use in reading data out of the individual sensor cells of the image sensor. Data values are then read out from the individual sensor cells, wherein the data values from the individual sensor cells of the first sub-group of sensor cells are read out at a first rate using a first timing signal, and the data values from the individual sensor cells of the second sub-group of sensor cells are read out at a second rate using a second timing signal.

Abstract: For selective local registration based on registration error, a method determines a first registration error between a template image and a source image. The method further warps the source image to compensate for camera motion in response to the first registration error exceeding a registration error threshold. In addition, the method determines a second registration error between the template image and the warped source image. The method generates a pixel difference mask using the template image. The method further selectively performs local registration for the source image based on the pixel difference mask in response to the second registration error exceeding the registration error threshold.

Abstract: An electronic device includes: a data acquiring unit configured to detect an encryption apparatus in a preset distance range and to read preset data in the detected encryption apparatus; a data storage unit configured to store the preset data; and a connection establishing unit configured to establish power line communication connections, according to the preset data, with other electronic devices reading and storing the preset data. The disclosure further proposes a system for pairing electronic devices and a method for pairing electronic devices. With the technical solutions of the invention, power line communication connections between the electronic devices can be established rapidly, conveniently and more accurately.

Abstract: An electronic device includes: a connection establishing unit and a power line communication module; wherein, the connection establishing unit is configured to establish power line connections; the power line communication module comprising: a listening unit is configured to listen to a data packet, transmitted over a power line, from the other electronic devices after the power line connections are established; and a broadcast unit is configured to broadcast data packets after the power line connections are established, and broadcast no data packet and keep silent upon detection on data packet from other electronic devices has been received in a preset time duration. With the technical solutions of the disclosure, electromagnetic conductive radiation and interference produced by the electronic device to other power consuming devices can be avoided.

Abstract: The present invention provides a method and device for remotely controlling a household appliance. The method includes: sending, by a social application client, a control command for a target household appliance, wherein the control command includes an account of the target household appliance, and the account of the target household appliance is a unique social account registered in a social application server when the target household appliance leaves a factory; and controlling, by the social application client, the target household appliance corresponding to the account of the target household appliance according to the control command. The present invention enables a user to directly control the household appliance through the social application client, thus improving the efficiency of controlling the household appliance and reducing the cost.

Abstract: An electronic device includes: a data acquiring unit configured to detect an encryption apparatus in a preset distance range and to read preset data in the detected encryption apparatus; a data storage unit configured to store the preset data; and a connection establishing unit configured to establish power line communication connections, according to the preset data, with other electronic devices reading and storing the preset data. The disclosure further proposes a system for pairing electronic devices and a method for pairing electronic devices. With the technical solutions of the invention, power line communication connections between the electronic devices can be established rapidly, conveniently and more accurately.

Abstract: A transgenic goat zygote is developed from a goat zygote comprising a nucleic acid construct containing a nucleotide sequence of a goat &bgr;-casein promoter and a nucleotide sequence encoding hG-CSF, which produces milk containing a high concentration of biologically active hG-CSF.