Abstract: An apparatus for detecting a mark on a substrate is provided. The mark has a first stripe group and a second stripe group disposed in parallel to each other. The apparatus includes a detection module operative to move over a surface of the substrate. The detection module includes a detection unit for obtaining data from the mark and operative to perform repeated acquisition operations on the first stripe group and the second stripe group of the mark. Each of the acquisition operations acquires data associated with the first stripe group or the second stripe group of the mark. The detection module also includes a positioning unit for aligning the detection unit with the mark.

Abstract: Embodiments of the present invention disclose a method and an apparatus for transmitting data, and the method includes: first setting at least two second resource groups in each first resource group of at least one first resource group, and setting at least two reference signals in each of the second resource groups; then encoding data to be transmitted and generating two data streams from the encoded data; then, mapping the two data streams onto an available resource element of two different antenna ports, in which the reference signals corresponding to the two different antenna ports are set on two different second resource groups; and finally, transmitting, on the available resource element of the two different antenna ports, data on the two antenna ports. The present invention is applicable to the field of communications systems.

Abstract: Embodiments of the present disclosure disclose a multimedia data processing method, apparatus, and a storage medium. In the embodiments of the present disclosure, a playing request carrying an identifier of multimedia data is received. A valid single-use verification parameter is generated according to the playing request. A link address of the corresponding multimedia data is obtained according to the identifier of the multimedia data. A playing address is generated according to the verification parameter and the link address. The multimedia data is played based on the playing address. This present disclosure improves the data security technology and prevent a user from capturing, by means of data packet capturing or by using third party software, a source file of the multimedia data used within a website.

Abstract: A method for assembling a microlens array assembly including a set of microlens array elements having at least two array elements having a first array element and a second array element includes adsorbing the first array element using a mobile platform, adsorbing the second array element using a fixture platform, coarsely aligning the second array element with the first array element based on edges of the second array element and edges of the first array element, finely aligning the second array element with the first array element based on an array pattern of the second array element and an array pattern of the first array element, and attaching the second array element to the first array element. The method enables assembling of multiple microlens array elements.

Abstract: The present invention provides methods for transmitting and receiving a control channel, a base station, and a user equipment. The method for transmitting a control channel includes: determining m PRB pairs used for transmitting a control channel to be transmitted; when a distributed transmission mode is used for transmission, determining an aggregation level L of the control channel to be transmitted; determining, according to the aggregation level L, a first control channel candidate at the aggregation level L; and placing, on physical resources to which the first control channel candidate is mapped, control information of the control channel to be transmitted, and transmitting the control information. The present invention improves multiplexing efficiency of control channels of different modes.

Abstract: A lithography system may include a wafer stage. The wafer stage may include a wafer mounting part configured to carry a wafer and configured to oscillate along a plane that is parallel to a top surface of the wafer in a wafer exposure process. The wafer stage may further include a driving device configured to affect an oscillatory movement of the wafer mounting part in the wafer exposure process.

Abstract: Embodiments provide a method for generating a random access channel ZC sequence, and an apparatus. A method for generating a random access channel ZC sequence includes: generating, by a base station, notification signaling, where the notification signaling instructs user equipment (UE) to generate a random access ZC sequence by using a second restricted set in a random access set; and sending, by the base station, the notification signaling to the UE, so that the UE generates the random access ZC sequence by using the second restricted set, where the random access set includes an unrestricted set, a first restricted set, and the second restricted set; and the second restricted set is a random access set that the UE needs to use when a Doppler frequency shift of the UE is greater than or equal to a first predetermined value.

Abstract: A method includes forming a gate layer over a semiconductor fin; forming a patterned mask over the gate layer; performing a first etching process to pattern the gate layer using the patterned mask as an etch mask, the patterned gate layer comprising a first gate extending across the semiconductor fin; depositing, by using an directional ion beam, a protection layer to wrap around a top surface, a first sidewall and a second sidewall of the first gate, the protection layer extending along the first and second sidewalls of the first gate towards a bottom surface of the first gate without extending to the bottom surface of the first gate on the second sidewall of the first gate; and after depositing the protection layer, performing a second etching process to a portion of the second sidewall of the first gate exposed by the protection layer.

Abstract: Integrated rotary structure and fabrication method thereof are provided. An integrated rotary structure includes a cylinder material. The cylinder material includes a circular side wall, a third surface at one end of the circular side wall and a fourth surface at another end of the circular side wall opposing to the third surface. The third surface of the cylinder material is machined to form an elliptical reflective surface. The circular side wall of the cylinder material is machined to form a fifth surface and a sixth surface. A central symmetrical axis of the fifth surface and the sixth surface coincides with a first optical axis of the elliptical reflective surface. By using the fifth surface and the sixth surface as holding planes, the third surface is machined to form a curved non-reflective surface surrounding the elliptical reflective surface.

Abstract: A method includes forming a dummy gate over a substrate. A pair of gate spacers are formed on opposite sidewalls of the dummy gate. The dummy gate is removed to form a trench between the gate spacers. A first ion beam is directed to an upper portion of the trench, while leaving a lower portion of the trench substantially free from incidence of the first ion beam. The substrate is moved relative to the first ion beam during directing the first ion beam to the trench. A gate structure is formed in the trench.

Abstract: Embodiments of the present application provide a random access sequence generation method, and an apparatus. The method includes: generating, by a base station, notification signaling, where the notification signaling includes indication information, the indication information is used to instruct user equipment UE to select a shift sequence number from a range of 0 to (nshiftRAngroupRA+nshiftRA+nshiftRA+shiftRA?1), the shift sequence number is an integer, nshiftRA is a quantity of UE candidate sequence shifts in a group, ngroupRA is a quantity of groups, nshiftRA is a quantity of UE candidate sequence shifts in the last length that is insufficient for a group, nshiftRA is a quantity of UE candidate sequence shifts in first remaining sequence shifts, and shiftRA is a quantity of UE candidate sequence shifts in second remaining sequence shifts; and sending, by the base station, the notification signaling to the UE, so that the UE generates a random access sequence according to the indication information.

Abstract: A method for operating a communications controller includes selecting a search space configuration out of a set of candidate search space configurations for a user equipment served by the communications controller, wherein the search space configuration specifies one or more search spaces to be monitored out of a set of search spaces, and signaling the selected search space configuration to the user equipment. The method provided in this embodiment can be applied to communication systems, such as V2X, LTE-V, V2V, Internet of Vehicles, MTC, IoT, LTE-M, M2M, Internet of Things, etc.

Abstract: Embodiments of the present invention provide methods for transmitting and receiving a control channel, a base station, and a user equipment, which relate to the communication field, and can solve a transmission problem of available changing transmission resources caused by introduction of an E-PDCCH. A method includes determining, by a terminal device, a resource set and resource elements (REs) of predetermined overheads in the resource set. The REs of the predetermined overheads include an RE of at least one of a paging channel and a synchronization channel, with at least one of following REs: an RE of a channel state information-reference signal (CSI-RS), an RE of a cell-specific reference signal (CRS), an RE of a demodulation reference signal (DMRS), or a muted RE. The terminal device receives from a base station, a control channel on an RE subset comprised in the resource set, wherein the RE subset comprises a part of the REs in the resource set and do not contain the REs of the predetermined overheads.

Abstract: A method and apparatus for operating a satellite system including different satellites that may belong to different types of satellite constellations. In some implementations, the satellite system may include a LEO satellite constellation and one or more non-LEO satellite constellations that can be used to increase the forward link capacity of the LEO satellite constellation, for example, by allowing an LEO satellite to offload at least some of its forward link traffic to one of the non-LEO satellites. The user terminals can dynamically switch forward link communications between a LEO satellite and a non-LEO satellite while maintaining a return link connection with the LEO satellite.

Abstract: A transmit diversity method, a device, and a system are described herein. The method includes: measuring, by a second network device, channel state information based on a pilot signal, and sending rank index information and precoding matrix index information to a first network device based on the channel state information; receiving, by the first network device, the rank index information and the precoding matrix index information that are sent by the second network device; determining a diversity coding scheme based on the rank index information; determining a precoding matrix based on the precoding matrix index information; and performing transmission processing on to-be-transmitted data based on the diversity coding scheme and the precoding matrix.

Abstract: A method includes determining a type of a first subframe, where the type of the first subframe is a first-type subframe, a second-type subframe, a third-type subframe, or a fourth-type subframe, where the second-type subframe includes an uplink control channel and a downlink channel, the uplink control channel is located after the downlink channel, and there is a guard period between the uplink control channel and the downlink channel. The fourth-type subframe includes an uplink channel and a downlink control channel, the uplink channel is located after the downlink control channel, and there is a guard period between the uplink channel and the downlink control channel. The method also includes transmitting data in the first subframe according to the type of the first subframe.

Abstract: The present invention provides a signal sending apparatus, a signal detection apparatus, a signal sending and detection system, a signal sending method, and a signal detection method. The apparatus determines a time unit that is in each time window and that is used to transmit a synchronization signal, and transmits the synchronization signal in the determined time unit in each time window. Therefore, a synchronization signal is always located in a time unit that has a fixed location in each time window, so that a device at a receive end needs to perform detection only in a fixed time unit in each time window, thereby reducing complexity of designing and detecting the synchronization signal.

Abstract: Methods, computer program products, and systems are presented. The methods include, for instance: synchronizing, by one or more processor, first virtual machine(s) with a second virtual machine, the synchronizing comprising mirroring first input events to the first virtual machine(s); and customizing, by the one or more processor, the first virtual machine(s), the customizing comprising suspending the synchronizing and facilitating sending of second input events to the first virtual machine(s). In one embodiment, the synchronizing comprises cloning the second virtual machine to create the first virtual machine(s), the cloning comprising initializing the first virtual machine(s), and copying second virtual machine state information to the first virtual machine(s).

Abstract: A substrate alignment device includes a plurality of state detection units, each of which is configured to move from a standby position to a detection position for detecting a positional state of a substrate and return back from the detection position back to the standby position, and a multidimensional robot arm configured to receive and support the substrate, transfer the substrate to a substrate detection site, and adjust the substrate in at least one orientation or position according to the detected positional state of the substrate to position the substrate to a target position for overlay mark measurements.

Abstract: A mounting structure includes at least one first hole formed in a first component of the gear motor, at least one second hole formed in a second component of the gear motor, arranged coaxially with the first hole, and at least one expansion member extending into the first and second holes. The expansion member has an interference fit with one of the first and second holes, and has a transition fit with the other of the first and second holes. The present invention can effectively prevent falling off of the expansion member, and reduce the assembly difficulties of the gear motor as well as the degree of deformation of the expansion member during the assembly process.