Abstract: A semiconductor structure includes a first channel layer and a first barrier layer on the first channel layer. The first channel layer has a first potential well adjacent to the interface between the first channel layer and the first barrier layer. The semiconductor structure further includes a second channel layer on the first barrier layer, a second barrier layer on the second channel layer, and an intermediate layer between the second channel layer and the second barrier layer. The second channel layer has a second potential well adjacent to the interface between the second channel layer and the intermediate layer. The intermediate layer has a greater energy gap than either the first barrier layer or the second barrier layer. The energy gap of the first barrier layer is no less than the energy gap of the second barrier layer.

Abstract: This application discloses a network control method. The method includes: obtaining global network information; determining resource information of at least one sliced network based on the global network information, where each sliced network is corresponding to one second controller, and resource information of each sliced network includes initial link bandwidth allocated to each aggregation flow in each sliced network on each link in each sliced network; and sending resource information of a corresponding sliced network to each second controller, so that a target second controller performs, through closed-loop control based on a queue status corresponding to a target sliced network, closed-loop correction on initial link bandwidth allocated to each aggregation flow in the target sliced network on each link in the target sliced network, and each switch in the target sliced network transmits a corresponding aggregation flow based on corresponding corrected link bandwidth.

Abstract: This application discloses a network control method. The method includes: obtaining global network information; determining resource information of at least one sliced network based on the global network information, where each sliced network is corresponding to one second controller, and resource information of each sliced network includes initial link bandwidth allocated to each aggregation flow in each sliced network on each link in each sliced network; and sending resource information of a corresponding sliced network to each second controller, so that a target second controller performs, through closed-loop control based on a queue status corresponding to a target sliced network, closed-loop correction on initial link bandwidth allocated to each aggregation flow in the target sliced network on each link in the target sliced network, and each switch in the target sliced network transmits a corresponding aggregation flow based on corresponding corrected link bandwidth.

Abstract: A method for profiling network traffic of a network. The method includes capturing packets based at least on a common source IP address shared by each of the packets, where said each packet is assigned a source timestamp by a source of said each packet and further assigned a capture timestamp by a packet capturing device, identifying a first portion of the packets as a first flow and a second portion of the packets as a second flow, extracting a first monotonic timestamp-pair (MTSP) sequence and a second MTSP sequence from the first flow and the second flow, respectively, comparing the first MTSP sequence and the second MTSP sequence to generate a result, and determining, based on the result, whether the first flow and the second flow are generated by a single host of the network.

Abstract: A method for profiling network traffic of a network. The method includes capturing packets based at least on a common source IP address shared by each of the packets, where said each packet is assigned a source timestamp by a source of said each packet and further assigned a capture timestamp by a packet capturing device, identifying a first portion of the packets as a first flow and a second portion of the packets as a second flow, extracting a first monotonic timestamp-pair (MTSP) sequence and a second MTSP sequence from the first flow and the second flow, respectively, comparing the first MTSP sequence and the second MTSP sequence to generate a result, and determining, based on the result, whether the first flow and the second flow are generated by a single host of the network.

Abstract: A method for profiling network traffic of a network. The method includes capturing packets based at least on a common source IP address shared by each of the packets, where said each packet is assigned a source timestamp by a source of said each packet and further assigned a capture timestamp by a packet capturing device, identifying a first portion of the packets as a first flow and a second portion of the packets as a second flow, extracting a first monotonic timestamp-pair (MTSP) sequence and a second MTSP sequence from the first flow and the second flow, respectively, comparing the first MTSP sequence and the second MTSP sequence to generate a result, and determining, based on the result, whether the first flow and the second flow are generated by a single host of the network.

Abstract: A method, system and computer program product for accurately tracking the position of a mobile device. The microphone on a mobile device receives acoustic signals at a few selected frequencies from a device to be controlled by the mobile device. The frequency shifts are used to estimate the speed and distance traveled. The distance between the speakers of the device to be controlled is calibrated and the mobile device's initial position is narrowed down using its movement trajectory. Based on the information, the mobile device's new position is continuously tracked in real time. Hence, movement of the mobile device can be accurately tracked, thereby allowing the mobile device to be realized as a motion-based controller (e.g., mouse, game controller, controller for Internet of Things).

Abstract: A communication device provides a face detection module and a face recognition module. The face detection module detects faces in a photo input by a user. The face recognition module searches the detected faces in a storage system of the communication device. If the detected faces do not exist in the storage system, the communication device prompts the user to edit communication information of the detected faces. If the user wants to dial a phone number, the communication device searches the storage system for the phone number of a selected face in a photo and dials the phone number. If a phone number is calling in, the communication device displays a photo corresponding to the phone number, and highlights a face corresponding to the phone number.

Abstract: A communication device provides a face detection module and a face recognition module. The face detection module detects faces in a photo input by a user. The face recognition module searches the detected faces in a storage system of the communication device. If the detected faces do not exist in the storage system, the communication device prompts the user to edit communication information of the detected faces. If the user wants to dial a phone number, the communication device searches the storage system for the phone number of a selected face in a photo and dials the phone number. If a phone number is calling in, the communication device displays a photo corresponding to the phone number, and highlights a face corresponding to the phone number.

Abstract: A communication device provides a face detection module and a face recognition module. The face detection module detects faces in a photo input by a user. The face recognition module searches the detected faces in a storage system of the communication device. If the detected faces do not exist in the storage system, the communication device prompts the user to edit communication information of the detected faces. If the user wants to dial a phone number, the communication device searches the storage system for the phone number of a selected face in a photo and dials the phone number. If a phone number is calling in, the communication device displays a photo corresponding to the phone number, and highlights a face corresponding to the phone number.

Abstract: A communication device provides a face detection module and a face recognition module. The face detection module detects faces in a photo input by a user. The face recognition module searches the detected faces in a storage system of the communication device. If the detected faces do not exist in the storage system, the communication device prompts the user to edit communication information of the detected faces. If the user wants to dial a phone number, the communication device searches the storage system for the phone number of a selected face in a photo and dials the phone number. If a phone number is calling in, the communication device displays a photo corresponding to the phone number, and highlights a face corresponding to the phone number.