摘要:
An exemplary securing structure includes a base, a fastener, and a spring mounted around the fastener. The base defines a securing hole, and two slots located aside the securing hole and communicating with the securing hole. The fastener includes a head, a bolt extending downwardly from the head, and two blocks extending outwardly from an outer periphery of the bolt corresponding to the slots. The bolt is extendable through the securing hole together with the blocks extending through the slots, respectively. The fastener is then rotatable to a position such that the blocks abuts a bottom side of the base. The spring is resiliently compressed between the head of the fastener and a top side of the base.
摘要:
A three dimensional combo antenna having a first insulating substrate, a second insulating substrate, a first antenna and a second antenna. The first insulating substrate has a first surface and a second surface opposite to the first surface. The second insulating substrate, perpendicular to the first insulating substrate is positioned on the first surface. The first antenna, formed on the first insulating substrate, is coupled to a first ground. The second antenna, formed on the second insulating substrate, is coupled to a second ground that is different from the first ground. The first and the second antennas operate at a first frequency band.
摘要:
A power supply module including a cable and a power conversion device is provided. The cable includes a power line and a detection line and a terminal thereof connected to an electronic device, wherein the detection line transmits a first electrical numerical energy value of first electrical energy received by the electronic device through the power line. The power conversion device connects another terminal of the cable, transmits second electrical energy to the electronic device and includes an electrical energy control unit and a feedback unit. The feedback unit is used for receiving the first electrical numerical energy value and produces a feedback signal according to the first electrical numerical energy value. The electrical energy control unit receives an input electrical energy, connects the feedback unit, and regulates output electrical energy thereof and the second electrical energy having a second electrical numerical energy value with reference of the feedback signal.
摘要:
A testing device suitable for testing an electronic device is provided. The electronic device has a first body and a second body, wherein the first body is suitable for rotating relative to the second body. The testing device includes a carrying platform, a fixed frame, a clamping element, a first driving element, and a second driving element. The carrying platform carries the first body. The fixed frame is pivoted to the carrying platform. The clamping element is pivoted to the fixed frame for clamping the second body. The first driving element is disposed between the carrying platform and the fixed frame for driving the fixed frame to pivot relative to the carrying platform. The second driving element is disposed between the clamping element and the fixed frame for driving the clamping element to pivot relative to the fixed frame.
摘要:
A limiting switch suitable for a testing device is provided. The testing device includes a fixed frame and a clamping element pivoted to each other. The limiting switch includes a first rod, a second rod, a first switching element and a second switching element. The first and second rods are fixed to the clamping element. The first and second switching elements are pivotally connected to the fixed frame. When the clamping element is pivoted along a first direction, the second rod pushes the second switching element to pivot and the first rod is moved to contact with the first switching element. When the clamping element is pivoted along a second direction opposite to the first direction, the first rod pushes the first switching element to pivot and the second rod is moved to contact with the second switching element.
摘要:
A sphere decoding method applied to a MIMO channel is provided. Multiple constellation points of an nth detection layer corresponding to a MIMO channel matrix are enumerated based on an enumeration rule, and at least one nth sub-set of the nth detection layer is defined. The candidate range of the constellation points of the at least one nth sub-set is determined according to a predetermined number K of the preferred points of the at least one nth sub-set. K constellation points are obtained from the at least one nth sub-set as the preferred points according to partial Euclidean distances of the constellation points. The at least one nth sub-set includes at least K constellation points. Kn preferred points are selected from all K preferred points of the at least one nth sub-set. An optimal solution is determined according to the Kn, preferred points.
摘要:
A sphere decoding method applied to a MIMO channel is provided. Multiple constellation points of an nth detection layer corresponding to the MIMO channel matrix are enumerated based on an enumeration rule, and at least one nth sub-set of the nth detection layer is defined. The constellation point with the least PED is obtained as a preferred point. Another constellation, not in the nth sub-set, of the nth detection layer is selected to substitute for the preferred point as one of the nth sub-set. If other preferred points are needed to be obtained, the nth sub-set is updated repeatedly according to the least PED. An optimal solution is determined according to Kn preferred points of the nth detection layer.
摘要:
A limiting switch suitable for a testing device is provided. The testing device includes a fixed frame and a clamping element pivoted to each other. The limiting switch includes a first rod, a second rod, a first switching element and a second switching element. The first and second rods are fixed to the clamping element. The first and second switching elements are pivotally connected to the fixed frame. When the clamping element is pivoted along a first direction, the second rod pushes the second switching element to pivot and the first rod is moved to contact with the first switching element. When the clamping element is pivoted along a second direction opposite to the first direction, the first rod pushes the first switching element to pivot and the second rod is moved to contact with the second switching element.
摘要:
An exemplary heat dissipation device includes a heat sink defining a plurality of air passages therein, and an airflow generator disposed at a side of the heat sink. The airflow generator includes airflow-generating units stacked together. Each airflow-generating unit includes a casing in which two spaced vibration diaphragms are received, and a nozzle connected to the casing. A chamber is defined between the two vibration diaphragms within the casing. The nozzle defines an air channel therein for communicating the chamber with an exterior of the casing. Two piezoelectric elements are respectively attached to the two vibration diaphragms. When the two piezoelectric elements drive the two vibration diaphragms towards each other, the two vibration diaphragms compress the air in the chamber and drive the air towards the air channel of the nozzle, thereby generating an airflow from the nozzle towards the air passages of the heat sink.
摘要:
A wireless rechargeable battery adapted to receive energy from a wireless power supply device wirelessly is provided. The wireless charge battery includes a battery unit, a wireless charging module, and an indicator. The wireless charging module is coupled to the battery unit to receive energy from the wireless power supply device wirelessly and transform the energy to electricity so as to charge the battery unit. The indicator is coupled to the wireless charging module to display the operation state of the wireless charging module.