Abstract: Disclosed are an electronic device, an expansion card assembly and a server device. The electronic device comprises a hard disk slot and the expansion card assembly. The expansion card assembly is arranged in the hard disk slot in a pluggable manner; the hard disk slot comprises a first type of interface and a second type of interface. The first type of interface is used for communicating with the hard disk, and the second type of interface is used for communicating with the expansion card assembly. Therefore, the expansion card assembly is expanded by means of the hard disk slot in the electronic device, so that the expansion requirement of the expansion card assembly is met.

Abstract: The present invention relates to the fields of microorgan-isms, feed, food and ecological restoration, in particular to a strain for degrading deoxynivalenol (DON) and the use thereof. The strain has the deposit number CCTCC No. M 2020565. The strain can grow by means of taking the toxic compound DON as a sole carbon source, and convert the DON into chemical components for itself. The reaction process is irreversible, the reaction conditions are moderate, and secondary pollu-tion cannot be caused. The strain provided in the present invention can be used for preparing a biological detoxification preparation for DON. The strain provided in the present invention can be used for degrading DON in feed and food raw materials, primary processing products, deep processing products and related processing byproducts. The strain provided in the present invention can be applied to various ecosystems such as soil or bodies of water polluted by DON to achieve the purposes of DON degradation and ecological restoration.

Abstract: This application provides an optical signal processing circuit and an electronic device, to improve a signal-to-noise ratio of an output signal of a fingerprint sensor, thereby improving a fingerprint recognition rate. The optical signal processing circuit includes a photosensitive device, an amplifier transistor T1, a switch transistor T2, a switch transistor T3, a readout circuit, a control circuit, and a voltage-adjustable power supply. When the optical signal processing circuit is in a compensation reset phase, the voltage of the gate of T1 exactly reaches a level at which the amplifier transistor T1 is turned on. Therefore, when an input voltage and a voltage increment are applied to the gate of T1, a gate-source voltage Vgs of T1 increases, and T1 amplifies an input voltage signal to generate an output signal.

Abstract: A TOF sensor module is disclosed. The TOF sensor module includes a light source, a beam adjustment assembly, and a detection assembly. The light source is configured to emit m first beams at each of M moments, and transmit the m first beams to the beam adjustment assembly. The beam adjustment assembly is configured to: after adjusting the received m first beams into S second beams, project the S second beams to S regions of a detection surface, where M projection points that are in a same region of the detection surface and to which projection is performed at the M moments respectively have different locations. The detection assembly is configured to receive S optical echo signals from the detection surface at each of the M moments, and convert the S optical echo signals into S electrical echo signals for storage at each moment.

Abstract: An electronic device includes a light guide plate including three grating parts. A first grating part is configured to receive the emitted light through a light incident surface of the first grating part, diffract the emitted light to form a first light, and enable the first light to enter a second grating part. The second grating part is configured to form, based on the first light, a second light propagated in the second grating part, and form, based on the second light, a third light entering a third grating part. The third grating part is configured to form, based on the third light, a fourth light propagated in the third grating part, form an emergent light based on the fourth light, and enable the emergent light to be emitted through a light emergent surface of the third grating part and enter a cover plate.

Abstract: A screen module includes an external screen, a first light blocking layer, a substrate, and a reflection layer that are disposed from outside to inside. An imaging unit array is disposed on the substrate, the imaging unit array includes a plurality of imaging units), and a photosensitive surface of the imaging unit is opposite to the reflection layer. A first aperture array is disposed on the first light blocking layer, the first aperture array includes a plurality of first apertures, and the first aperture is used to allow light reflected by an object outside the screen to the reflection layer to pass through. The reflection layer is configured to reflect, to the imaging unit, the light passing through the first aperture. Thus, user convenience can be improved.

Abstract: Disclosed are an electronic device, an expansion card assembly and a server device. The electronic device comprises a hard disk slot and the expansion card assembly. The expansion card assembly is arranged in the hard disk slot in a pluggable manner; the hard disk slot comprises a first type of interface and a second type of interface. The first type of interface is used for communicating with the hard disk, and the second type of interface is used for communicating with the expansion card assembly. Therefore, the expansion card assembly is expanded by means of the hard disk slot in the electronic device, so that the expansion requirement of the expansion card assembly is met.

Abstract: This application provides an optical signal processing circuit and an electronic device, to improve a signal-to-noise ratio of an output signal of a fingerprint sensor, thereby improving a fingerprint recognition rate. The optical signal processing circuit includes a photosensitive device, an amplifier transistor T1, a switch transistor T2, a switch transistor T3, a readout circuit, a control circuit, and a voltage-adjustable power supply. When the optical signal processing circuit is in a compensation reset phase, the voltage of the gate of T1 exactly reaches a level at which the amplifier transistor T1 is turned on. Therefore, when an input voltage and a voltage increment are applied to the gate of T1, a gate-source voltage Vgs of T1 increases, and T1 amplifies an input voltage signal to generate an output signal.

Abstract: An electronic device includes a light guide plate including three grating parts. A first grating part is configured to receive the emitted light through a light incident surface of the first grating part, diffract the emitted light to form a first light, and enable the first light to enter a second grating part. The second grating part is configured to form, based on the first light, a second light propagated in the second grating part, and form, based on the second light, a third light entering a third grating part. The third grating part is configured to form, based on the third light, a fourth light propagated in the third grating part, form an emergent light based on the fourth light, and enable the emergent light to be emitted through a light emergent surface of the third grating part and enter a cover plate.

Abstract: A screen module includes an external screen, a first light blocking layer, a substrate, and a reflection layer that are disposed from outside to inside. An imaging unit array is disposed on the substrate, the imaging unit array includes a plurality of imaging units), and a photosensitive surface of the imaging unit is opposite to the reflection layer. A first aperture array is disposed on the first light blocking layer, the first aperture array includes a plurality of first apertures, and the first aperture is used to allow light reflected by an object outside the screen to the reflection layer to pass through. The reflection layer is configured to reflect, to the imaging unit, the light passing through the first aperture. Thus, user convenience can be improved.

Abstract: Methods and systems for data flow control include establishing a first connection between a gateway and a network client responsive to a connection request from the network client; establishing a second connection between the gateway and a server specified by the connection request; determining a user class for the network client based on a level of network congestion detected at the gateway based on throughput and round-trip-time delays; modifying a data flow received at the gateway on the second connection to remove data from the flow based on the determined user class of the network client; and transmitting the modified data flow to the network client via the first connection.

Abstract: A method for video multicast delivery for 4g wireless networks includes collecting client feedback and obtaining supportable modulation and coding scheme MCS for each client over a base station of wireless network, prioritizing video packets for said clients and setting a utility for each of the video packets; performing a radio resource allocation for determining a utility optimization for transmitted frames of the video packets; and assigning an MCS to each transmitted frame of the video packets, responsive to step performing a radio resource allocation.

Abstract: Disclosed herein are techniques, methods, and apparatus pertaining to a multi-user scheduling in 4G and 3GPP LTE cellular uplinks.

Abstract: The present invention is directed to a method employing a basestation with downlink and uplink flows of information between users; remotely virtualizing the flows from an entity external to the basestation without any modification to the basestation; and creating virtual basestations or networks responsive to the remotely virtualizing.

Abstract: A method for uplink power control implemented in a wireless communications system including one or more user equipment, a serving base station, and at least one neighboring base station is disclosed. The method comprises measuring, at each user equipment, pathloss, sending, from each user equipment to the serving base station, the pathloss, and determining, at the serving base station, uplink transmit power based on the pathloss. Other methods, systems, and apparatuses also are disclosed.

Abstract: A fractional frequency reuse method for assigning physical resource units of a contiguous frequency band to sectors of cells is disclosed.

Abstract: A basestation used in a wireless communications system is disclosed. The basestation includes a plurality of flow management schedulers, wherein the base station receives an indication of function selection from an entity, and wherein the base station chooses for the entity one of the plurality of flow management schedulers according to the indication of function selection. Other methods, apparatuses, and systems also are disclosed.

Abstract: A method to allocate resources in a wireless MIMO system, by enforcing per-cell orthogonality to avoid intra-cell interference; and allocating resources based on interference handling.

Abstract: A network virtualization method in a wireless communication system includes aggregating sets of uplink and downlink flows on a cellular basestation into groups; allocating wireless resources to each of the sets as a respective basestation slice; and enabling each of the sets of flows to be under a distinct administrative entity.

Abstract: A method for LTE or WiMAX scheduling includes collecting, by a basestation BS, channel feedback from multiple mobiles with downlink traffic. The channel feedback enables the BS to determine an achievable rate or block error probability if transmitting to a mobile with a given modulation and coding scheme MCS and multiple-input multiple-output MIMO mode. The method includes determining, by the BS, which of the mobiles is scheduled on each resource block RB and what the MCS and MIMO mode is selected for each scheduled mobile, and allocating bits on the set of the RBs assigned to each scheduled mobile.