Abstract:
A flexible circuit board with specific shielding planes is used for low voltage differential transmission mode circuits. Both the impedance and the transmission time for the transmission line in the circuit board are controlled by shielding planes with varied void opening patterns. Capacitance and slow wave effects related to the combination of void opening patterns and the location configuration related to locations of void opening patterns are used to improve the impedance and transmission timing for the transmission line in the circuit board.
Abstract:
Disclosed is a sealing detection mechanism for detecting sealing of a closure fastened to a container having a top open end. The sealing detection mechanism includes a RFID tag mounted at a selected position of the closure, at least one operable tear portion formed at the closure, and at least one conductive unit electrically connected to the RFID tag and extended from the RFID tag to the closure to form a conductive circuit loop across the operable tear portion of the closure. A sealing guarantee device mounted is selectively mounted between the top open end of the container and the closure, which includes an upper portion, a lower portion, and a middle portion connected between the upper portion and the lower portion. The lower portion of the sealing guarantee device is provided with an annular flange protruding downward from the lower portion and a hollow portion between the lower portion and the flange.
Abstract:
A surface acoustic wave touch panel and a system of the same are provided. The system includes the touch panel, an input/output (I/O) controlling unit, a detecting unit, and a signal processing unit. The touch panel includes a substrate on which at least one first emitter and at least one second emitter are provided on two adjacent edges thereof, and at least one first receiver and at least one second receiver are provided on the other two adjacent edges of the substrate. The I/O controlling unit controls the emitters to emit signals, and controls the detecting unit to pick up output signals from the receivers. The signal processing unit uses a neural network to determine an amplitude-reduction feature of any of the output signals so as to identify a position being touched on the touch panel. The touch panel is provided with high resolution and high throughput.
Abstract:
A flexible circuit board with specific shielding planes is used for low voltage differential transmission mode circuits. Both the impedance and the transmission time for the transmission line in the circuit board is controlled by shielding planes with varied void opening patterns. Capacitance and slow wave effects related to the combination of void opening patterns and the location configuration related to locations of void opening patterns are used to improve the impedance and transmission timing for the transmission line in the circuit board.