Abstract: An authentication system includes a request apparatus. The request apparatus includes a generation module, configured to generate a three-dimensional image or a multi-dimensional image. The three-dimensional image or the multi-dimensional image is configured for the authentication of the three-dimensional image or multi-dimensional image. The invention also provides a request apparatus, a response device, a request method and a response method. The authentication system, the request apparatus, the response apparatus, the request method and the response method provided by the invention can perform identity verification by three-dimensional images or multi-dimensional images, thereby avoiding leakage of verification information and ensuring financial security and information security of the user.

Abstract: In some embodiments, a light emitting structure comprises a layered semiconductor stack comprising a first set of doped layers, a second layer, a light emitting layer positioned between the first set of doped layers and the second layer, and an electrical contact to the first set of doped layers. The first set of doped layers can comprise a first sub-layer and a second sub-layer, wherein the first or the second sub-layer is adjacent to the light emitting layer. The electrical contact can be coupled to the second sub-layer. The first and second sub-layers can be doped n-type, and an electrical conductivity of the second sub-layer can be higher than an electrical conductivity of the first sub-layer. The first sub-layer, the second sub-layer, and the light emitting layer can each comprise a superlattice.

Abstract: In some embodiments, a light emitting structure comprises a layered semiconductor stack comprising a first set of doped layers, a second layer, a light emitting layer positioned between the first set of doped layers and the second layer, and an electrical contact to the first set of doped layers. The first set of doped layers can comprise a first sub-layer, a second sub-layer, and a third sub-layer, wherein the third sub-layer is adjacent to the light emitting layer. The electrical contact can be coupled to the second sub-layer. The first, second and third sub-layers can be doped n-type, and an electrical conductivity of the second sub-layer can be higher than an electrical conductivity of the first and third sub-layers. The first, second and third sub-layers, the light emitting layer, and the second layer can each comprise a superlattice.

Abstract: In some embodiments, a light emitting structure comprises a layered semiconductor stack comprising a first set of doped layers, a second layer, a light emitting layer positioned between the first set of doped layers and the second layer, and an electrical contact to the first set of doped layers. The first set of doped layers can comprise a first sub-layer, a second sub-layer, and a third sub-layer, wherein the third sub-layer is adjacent to the light emitting layer. The electrical contact can be coupled to the second sub-layer. The first, second and third sub-layers can be doped n-type, and an electrical conductivity of the second sub-layer can be higher than an electrical conductivity of the first and third sub-layers. The first, second and third sub-layers, the light emitting layer, and the second layer can each comprise a superlattice.

Abstract: In some embodiments, a light emitting structure comprises a layered semiconductor stack comprising a first set of doped layers, a second layer, a light emitting layer positioned between the first set of doped layers and the second layer, and an electrical contact to the first set of doped layers. The first set of doped layers can comprise a first sub-layer, a second sub-layer, and a third sub-layer, wherein the third sub-layer is adjacent to the light emitting layer. The electrical contact can be coupled to the second sub-layer. The first, second and third sub-layers can be doped n-type, and an electrical conductivity of the second sub-layer can be higher than an electrical conductivity of the first and third sub-layers. The first, second and third sub-layers, and the light emitting layer can each comprise a superlattice. The second layer can comprise a chirped superlattice.

Abstract: In some embodiments, a light emitting structure comprises a layered semiconductor stack comprising a first set of doped layers, a second layer, a light emitting layer positioned between the first set of doped layers and the second layer, and an electrical contact to the first set of doped layers. The first set of doped layers can comprise a first sub-layer, a second sub-layer, and a third sub-layer, wherein the third sub-layer is adjacent to the light emitting layer. The electrical contact can be coupled to the second sub-layer. The first, second and third sub-layers can be doped n-type, and an electrical conductivity of the second sub-layer can be higher than an electrical conductivity of the first and third sub-layers. The first, second and third sub-layers, and the light emitting layer can each comprise a superlattice. The second layer can comprise a chirped superlattice.

Abstract: In some embodiments, a light emitting structure comprises a layered semiconductor stack comprising a first set of doped layers, a second layer, a light emitting layer positioned between the first set of doped layers and the second layer, and an electrical contact to the first set of doped layers. The first set of doped layers can comprise a first sub-layer, a second sub-layer, and a third sub-layer, where the third sub-layer is adjacent to the light emitting layer. The electrical contact to the first set of doped layers can be made to the second sub-layer. The first, second and third sub-layers can be doped n-type, and an electrical conductivity of the second sub-layer can be higher than an electrical conductivity of the first and third sub-layers. In some cases, the second sub-layer can absorb more light emitted from the light emitting layer than the first or third sub-layers.

Abstract: In some embodiments, a light emitting structure comprises a layered semiconductor stack comprising a first set of doped layers, a second layer, a light emitting layer positioned between the first set of doped layers and the second layer, and an electrical contact to the first set of doped layers. The first set of doped layers can comprise a first sub-layer, a second sub-layer, and a third sub-layer, where the third sub-layer is adjacent to the light emitting layer. The electrical contact to the first set of doped layers can be made to the second sub-layer. The first, second and third sub-layers can be doped n-type, and an electrical conductivity of the second sub-layer can be higher than an electrical conductivity of the first and third sub-layers. In some cases, the second sub-layer can absorb more light emitted from the light emitting layer than the first or third sub-layers.

Abstract: A BLDC motor comprising a permanent magnet motor rotor defining a motor axis, a motor housing and a plurality of phase winding circuits mounted on the motor housing to form a stator, wherein each phase winding circuit comprises a phase winding and a driving bridge which is to operate to drive a phase current to flow through the phase winding, and the driving bridge comprises a switching circuit to provide a switched power supply to energize the phase winding; and wherein the phase windings are disposed at different angular positions with respect to the motor axis or the motor housing.

Abstract: Method and apparatus for three dimensional printing/bio-printing is disclosed. The apparatus includes a chamber further comprising a housing, an air supply unit, a heating and cooling unit, a humidifier, printing heads, gas removal unit and inlets. The housing further includes a printing platform coated with an antibacterial material and a UV lamp and an ozone generator, configured to turn on before printing the three dimensional prints on the printing platform, in order to sterilize the housing. A positive pressure in the chamber is increased by the air supply unit and the gas removal unit. External gases are passed and adjusted into the chamber by inlets. The humidity and temperature in the chamber are adjusted by the humidifier and the heating and cooling unit. The printing heads dispense biomaterial on the printing platform to create a three dimensional print.

Abstract: The present invention provides an authentication system including a request apparatus, wherein the request apparatus comprises a generation module, configured to generate a three-dimensional image or a multi-dimensional image; the three-dimensional image or the multi-dimensional image is configured for the authentication of the three-dimensional image or multi-dimensional image. The invention also provides a request apparatus, a response device, a request method and a response method. The authentication system, the request apparatus, the response apparatus, the request method and the response method provided by the invention can perform identity verification by three-dimensional images or multi-dimensional images, thereby avoiding leakage of verification information and ensuring financial security and information security of the user.

Abstract: A BLDC motor comprising a permanent magnet motor rotor defining a motor axis, a motor housing and a plurality of phase winding circuits mounted on the motor housing to form a stator, wherein each phase winding circuit comprises a phase winding and a driving bridge which is to operate to drive a phase current to flow through the phase winding, and the driving bridge comprises a switching circuit to provide a switched power supply to energize the phase winding; and wherein the phase windings are disposed at different angular positions with respect to the motor axis or the motor housing.

Abstract: Method and apparatus for three dimensional printing/bio-printing is disclosed. The apparatus includes a chamber further comprising a housing, an air supply unit, a heating and cooling unit, a humidifier, printing heads, gas removal unit and inlets. The housing further includes a printing platform coated with an antibacterial material and a UV lamp and an ozone generator, configured to turn on before printing the three dimensional prints on the printing platform, in order to sterilize the housing. A positive pressure in the chamber is increased by the air supply unit and the gas removal unit. External gases are passed and adjusted into the chamber by inlets. The humidity and temperature in the chamber are adjusted by the humidifier and the heating and cooling unit. The printing heads dispense biomaterial on the printing platform to create a three dimensional print.

Abstract: A multi-phase brushless direct-current motor and a drive method therefor. The motor comprises a motor body and a driving module, and the driving module comprises a controller, a plurality of H-bridge unipolar inverters each of which for a respective phase, and independent phase coil windings (1) which are successively electrically connected. The method comprises: outputting pulse width-modulated sine waves with identical frequency and amplitude from the controller thereby driving respective ones of the plurality of H-bridge unipolar inverters for each phase; wherein the pulse width-modulated sine waves correspond to every two adjacent phase coil windings having a non-zero phase difference, and phase differences of the plurality of phase coil windings are identical; and outputting sine wave driving voltages or sine wave driving currents in their corresponding phases from the respective ones of the plurality of H-bridge unipolar inverters to the corresponding, electrically connected phase coil windings.

Abstract: A multi-phase brushless direct-current motor and a drive method therefor. The motor comprises a motor body and a driving module, and the driving module comprises a controller, a plurality of H-bridge unipolar inverters each of which for a respective phase, and independent phase coil windings (1) which are successively electrically connected. The method comprises: outputting pulse width-modulated sine waves with identical frequency and amplitude from the controller thereby driving respective ones of the plurality of H-bridge unipolar inverters for each phase; wherein the pulse width-modulated sine waves correspond to every two adjacent phase coil windings having a non-zero phase difference, and phase differences of the plurality of phase coil windings are identical; and outputting sine wave driving voltages or sine wave driving currents in their corresponding phases from the respective ones of the plurality of H-bridge unipolar inverters to the corresponding, electrically connected phase coil windings.

Abstract: A method for providing a recommendation to a user, including retrieving, connection content associated with social network connections of the user; calculating, for each of the social network connections, an influence score for each of a plurality of locations; receiving a request location from a user device associated with the user; extracting a recommendation from relevant connection content, the relevant connection content being content associated with the request location and generated by at least one of the social network connections having the highest influence scores for the request location, the recommendation comprising a venue referenced within the relevant connection content; and sending the recommendation to the user device.

Abstract: A method for providing a recommendation to a user, including retrieving, connection content associated with social network connections of the user; calculating, for each of the social network connections, an influence score for each of a plurality of locations; receiving a request location from a user device associated with the user; extracting a recommendation from relevant connection content, the relevant connection content being content associated with the request location and generated by at least one of the social network connections having the highest influence scores for the request location, the recommendation comprising a venue referenced within the relevant connection content; and sending the recommendation to the user device.

Abstract: The present invention provides a contactless card reader and an information processing system utilizes the card reader. The contactless card reader comprises a contactless card interface for communicating with a contactless card by means of radio frequency, a contact card interface coupled to said contactless card interface for communicating with a contact card, and a contact card which is a smart card with processing capability and which interacts with the contactless card via the contact card interface and contactless card interface.

Abstract: A ring binder mechanism for retaining loose-leaf pages has a housing, hinge plates, and ring members mounted on the hinge plates for retaining pages on the mechanism. The housing includes a plastic upper housing element and a lower housing element underlying the upper housing element. The lower housing element may be a single piece or multiple pieces. An actuating lever may be pivotally mounted on the housing for engaging the hinge plates and pivoting them to selectively move the ring members between an open position and a closed position.

Abstract: A ring mechanism having a housing and at least one ring configurable between a closed position for retaining loose-leaf pages and an open position. A pair of hinge plates, operatively connected to the ring, are pivotable within the housing between first and second position corresponding respectively to the closed and open positions of the ring. Each hinge plate has a free end and a line of weakness formed therein proximate the free end to facilitate bending of the hinge plate. A hinge plate actuator has a bearing surface engageable with the hinge plates proximate the free ends thereof upon movement of the actuator from a first position toward a second position thereof such that the hinge plates bend proximate their free ends to delay pivoting movement of the hinge plates upon initial movement of the actuator from its first position toward its second position.