Abstract: A phase detection auto-focus-based (PDAF-based) positioning method and a system thereof are proposed, where the method is applicable to a positioning system having at least three image sensors and a processing device and includes the following steps. A target scene is detected by the first image sensor to generate first phrase detection data and thereby calculate a first object distance. The target scene is detected by the second image sensor to generate second phrase detection data and thereby calculate a second object distance. The target scene is detected by the third image sensor to generate third phrase detection data and thereby calculate a third object distance. Next, a positioning coordinate of the target point is obtained by the processing device according to the first object distance, the second object distance, and the third object distance.

Abstract: An intelligent wireless access system for a vehicle comprises a non-transitory computer-readable storage medium having stored thereon a computer program for tracking a target and estimating distance, a position, or direction of the target to a vehicle. The computer program comprises a routine of set instructions for causing the machine to perform receiving a beacon packet from the target, determining signal strength information for the beacon packet, transmitting a message comprising the signal strength information and the beacon packet for the target, and estimating based on received message, at least one of distance, position, or direction of the target to the vehicle.

Abstract: An electronic bead string includes a main bead, a plurality of secondary beads, a displacement sensor, a memory, and a processor. The main bead and the secondary beads are strung together to form a bead string. The displacement sensor is fixed in the main bead to output two-dimensional displacement signals, the memory stores the two-dimensional displacement signals, and the processor determines whether a rotation cycle of the electronic bead string is an approved rotation cycle according to the two-dimensional displacement signals.

Abstract: A heat dissipation module is provided. The heat dissipation includes a base, a frame, and a positioning member. The frame is disposed on the base and has a passage for containing an electronic component. At least a segment of the edge of the frame that is adjacent to the base is distant from the base so as to form an air path inlet that communicates with the passage therebetween. The positioning member is disposed in the passage and is connected to the frame and configured to position an electronic assembly in the frame.

Abstract: A virtual reality display apparatus includes at least one display and at least one optical assembly. The display provides an image beam to a left eye or a right eye of a user. The optical assembly is disposed on a transmission path of the image beam and located between the left eye or the right eye of the user and the display. The optical assembly includes at least one Fresnel lens including ring structures surrounding an optical axis thereof. Each of the ring structures includes an effective refraction surface and an optically non-effective surface connected to each other and arranged along a radial direction. A junction of the effective refraction surface and the optically non-effective surface has a round angle. The radius of curvature of the round angles of at least some of the ring structures of the Fresnel lens is smaller than 10 ?m and larger than 0 ?m.

Abstract: A Bluetooth Low-Energy (BLE) passive vehicle access control system integrated into a vehicle and an external device to defend the system against relay attacks is provided. The system includes a location received configured to determine a current location of the system. The location of the system may be in the form of latitude and longitude, altitude, or combination thereof. The system further includes a vehicle and an external device. The location receiver may be integrated into the vehicle, the external device, or both. A processor is communicatively coupled the location receiver to any number of wireless transceivers. A comparator configured to compare the current location of both the vehicle and the external device may be optionally coupled to the location receiver and the processor. Any number of electromagnets for generating a magnetic field may be installed in the vehicle and located adjacent to the transceivers.

Abstract: A Bluetooth Low-Energy (BLE) passive vehicle access control system integrated into a vehicle and an external device to defend the system against relay attacks is provided. The system includes a location received configured to determine a current location of the system. The location of the system may be in the form of latitude and longitude, altitude, or combination thereof. The system further includes a vehicle and an external device. The location receiver may be integrated into the vehicle, the external device, or both. A processor is communicatively coupled the location receiver to any number of wireless transceivers. A comparator configured to compare the current location of both the vehicle and the external device may be optionally coupled to the location receiver and the processor. Any number of electromagnets for generating a magnetic field may be installed in the vehicle and located adjacent to the transceivers.

Abstract: A lift chair is provided, including a base, a seat, and a driving mechanism connected to the base and the seat. The driving mechanism can drive the seat to move relative to the base between a first position and a second position. When the seat is in the first position, a first distance is formed between the seat and the base. When the seat is in the second position, a second distance exceeding the first distance is formed between the seat and the base. When the seat is in the second position, the driving mechanism can drive the seat to rotate relative to the base.

Abstract: A vehicle access control system configured to estimate, based on received message, at least one of distance, position, or direction of a target to the vehicle prior to initiating the engine of the vehicle, the vehicle access control system comprises a master node and at least one slave node. The target is in communication with the master node and the slave node via a communication link having low energy consumption.

Abstract: A vehicle access control system configured to estimate, based on received message, at least one of distance, position, or direction of a target to the vehicle prior to initiating the engine of the vehicle, the vehicle access control system comprises a master node and at least one slave node. The target is in communication with the master node and the slave node via a communication link having low energy consumption.

Abstract: A vehicle access control system configured to estimate, based on received message, at least one of distance, position, or direction of a target to the vehicle prior to initiating the engine of the vehicle, the vehicle access control system comprises at least one of an occupancy/intrusion system, a gesture access entry system, a virtual key sharing system, or an event system.

Abstract: An intelligent wireless access system for a vehicle comprises a non-transitory computer-readable storage medium having stored thereon a computer program for tracking a target and estimating distance, a position, or direction of the target to a vehicle. The computer program comprises a routine of set instructions for causing the machine to perform receiving a beacon packet from the target, determining signal strength information for the beacon packet, transmitting a message comprising the signal strength information and the beacon packet for the target, and estimating based on received message, at least one of distance, position, or direction of the target to the vehicle.

Abstract: An electronic device is provided. The electronic device includes a supporting member, a case, at least two positioning structures, a guiding structure, and a protrusion. The two positioning structures are respectively disposed on the supporting member and the case, and are configured to facilitate assembly of the case and the supporting member. The guiding structure is disposed on the supporting member. The protrusion is disposed on the case. The protrusion is guided by the guiding structure so as to simplify the assembly process and improve the efficiency of assembly.

Abstract: A Bluetooth Low-Energy (BLE) passive vehicle access control system integrated into a vehicle and an external device to defend the system against relay attacks is provided. The system includes at least one of a motion detector, a microprocessor, or a barometric pressure sensor. The motion detector is configured to detect and distinguish various types of motion and vibration. The motion detector is further configured to distinguish between a true motion event and a false motion event. The microprocessor comprises a set of computer executable instructions including a TX power profiling is capable of modulating the transmitted (TX) power level to create at a receiving end of a communication having link in the vehicle a RX power level (RSS) profile that serves as an authentication.

Abstract: An electronic device is provided. The electronic device includes a supporting member, a case, at least two positioning structures, a guiding structure, and a protrusion. The two positioning structures are respectively disposed on the supporting member and the case, and are configured to facilitate assembly of the case and the supporting member. The guiding structure is disposed on the supporting member. The protrusion is disposed on the case. The protrusion is guided by the guiding structure so as to simplify the assembly process and improve the efficiency of assembly.

Abstract: A rigid substrate, a touch panel including the rigid substrate and a processing method of the rigid substrate are provided. The rigid substrate includes an ion strengthened surface layer completely covering the entire outer surface thereof. The rigid substrate has an etched wall, wherein an average depth of the ion strengthened surface layer on the etched wall is substantially equivalent to an average depth of the ion strengthened surface layer outside of the etched wall.

Abstract: A heat dissipation module is provided. The heat dissipation includes a base, a frame, and a positioning member. The frame is disposed on the base and has a passage for containing an electronic component. At least a segment of the edge of the frame that is adjacent to the base is distant from the base so as to form an air path inlet that communicates with the passage therebetween. The positioning member is disposed in the passage and is connected to the frame and configured to position an electronic assembly in the frame.

Abstract: A method and apparatus for providing a congestion management of a wireless communication network are disclosed. For example, the method projects dynamically a trend for a network element of the wireless communication network, using a functionality metric associated with the network element of the wireless communication network, and determines if there is a potential congestion in accordance with the trend. The method then provides a notification of the potential congestion, if there is a potential congestion for the network element of the wireless communication network.

Abstract: A projection lens adjustment module applicable to a projection lens is provided. The projection lens includes a first assembly and a second assembly. The projection lens adjustment module includes a flexible connection line, an adjusting element and a driving mechanism. The flexible connection line has a first end and a second end opposite to each other. The adjusting element is connected to the first end. The driving mechanism is connected to the second assembly and the second end. When the adjusting element drives the first end to move along a first direction thereby leading the second end to move along a second direction non-parallel to the first direction, the second end drives the second assembly to move along an optical axis direction of the projection lens relative to the first assembly through the driving mechanism.

Abstract: The present application relates to a heating system, which has a power supply module (11), a regulatory module, electrically connected to the power supply module (11), for modulating the power supply module (11), and a heating module (13). The heating module (13) comprises a positioning device and a conductive device. The heating module (13) is electrically connected to the power supply module (11) and the regulatory module, and the conductive device is tightly wound around the positioning device.