Abstract: A respiratory function testing system includes an air transforming device, a sound reception device and an operation device. The air transforming device is configured to collect exhaled and/or inhaled air for a predetermined period and generate a wide frequency range sound signal according to the collected respired air. The wide frequency range sound signal at least contains an ultrasonic signal. The sound reception device is configured to receive and record the wide frequency range sound signal as an audio file. The operation device is in communication with the sound reception device and is configured to receive and compute the audio file to generate a respiratory function parameter. Besides, the recorded wide frequency range sound signal may be converted into a spectrogram for further applications, and the computation of the audio file can be replaced by analyzing the spectrogram. A respiratory function testing method corresponding to the respiratory function testing system is also provided.

Abstract: Devices and methods are described for reducing etching due to Galvanic Effect within a printed circuit board (PCB) that may be used in an electronic device. Specifically, a contact trace is coupled to a contact finger that has a substantially larger surface area than the contact trace. The contact finger is configured to couple the electronic device to a host device. The contact trace is electrically isolated from the rest of the PCB circuitry during a fabrication process by a separation distance between an exposed portion of the contact trace and an impedance trace. The contact finger and the exposed portion of the contact trace are plated with a common material to reduce galvanic etching of the contact trace during fabrication. The contact trace is then connected to the impedance trace using a solder joint.

Abstract: A display device including a screen, a base and an adaptor is provided. The adaptor can be selectively detached from or connected to the screen and the base. When the base is connected to the screen through the adaptor, the display device is erected on a plane through the base. When the base and the screen are directly connected, the display device is attached to a wall through the base. Thus, the screen and the base can switch between a stand-up mode or a hanging mode through the adaptor.

Abstract: A flat panel display apparatus includes a flat panel display device, a conductive frame, a circuit board, a connector having a ground terminal, and a conductive sheet. The conductive frame is disposed at a back surface of the flat panel display device. The circuit board is disposed in the conductive frame and is electrically connected to the flat panel display device. The connector is disposed on the circuit board and is disposed through the conductive frame. The conductive sheet includes a connecting sheet portion, a ground sheet portion, and a main sheet portion. The connecting sheet portion is connected to the ground terminal. The main sheet portion extends from the connecting sheet portion to the ground sheet portion along a contour of the connector, to make the ground sheet portion be located at a side of the connector and contact the conductive frame for ground connection of the connector.

Abstract: A display device including a screen, a base and an adaptor is provided. The adaptor can be selectively detached from or connected to the screen and the base. When the base is connected to the screen through the adaptor, the display device is erected on a plane through the base. When the base and the screen are directly connected, the display device is attached to a wall through the base. Thus, the screen and the base can switch between a stand-up mode or a hanging mode through the adaptor.

Abstract: A flat panel display apparatus includes a flat panel display device, a conductive frame, a circuit board, a connector having a ground terminal, and a conductive sheet. The conductive frame is disposed at a back surface of the flat panel display device. The circuit board is disposed in the conductive frame and is electrically connected to the flat panel display device. The connector is disposed on the circuit board and is disposed through the conductive frame. The conductive sheet includes a connecting sheet portion, a ground sheet portion, and a main sheet portion. The connecting sheet portion is connected to the ground terminal. The main sheet portion extends from the connecting sheet portion to the ground sheet portion along a contour of the connector, to make the ground sheet portion be located at a side of the connector and contact the conductive frame for ground connection of the connector.