Abstract:
PROBLEM TO BE SOLVED: To provide an acoustic transducer which is capable of converting sound waves into a plurality of electrical signals and is capable of suppressing variations in acoustic characteristics.SOLUTION: In an acoustic sensor 11, a vibrating membrane 22 and a fixed membrane 23 are formed on an upper surface of a semiconductor substrate 21. In response to changes in electrostatic capacitance between the vibrating electrode 220 of the vibrating membrane 22 and a fixed electrode 230 of the fixed membrane 23, the acoustic sensor 11 converts sound waves into electrical signals to output them. In the acoustic sensor 11, at least one of the vibrating electrode 220 and the fixed electrode 230 is divided, and a plurality of electrical signals are outputted from the plurality of divided electrodes respectively.
Abstract:
Semiconductor device formed by a first conductive strip of semiconductor material; a control gate region of semiconductor material, facing a channel portion of the first conductive strip, and an insulation region arranged between the first conductive strip and the control gate region. The first conductive strip includes a conduction line having a first conductivity type and a control line having a second conductivity type, arranged adjacent and in electrical contact with each other, and the conduction line forms the channel portion, a first conduction portion and a second conduction portion arranged on opposite sides of the channel portion.
Abstract:
PROBLEM TO BE SOLVED: To reduce the risk of destruction due to impact and reduce the influences of electrostatic interaction. SOLUTION: In a micro-electromechanical device 1, a movable mass body 2 is suspended above a board 3 via an elastic suspension element rotatably around the elastic suspension element, a cover structure 10 is arranged above the movable mass body 2 and has an inner face 10a opposed to the movable mass body 2, and a stopper structure 12 is arranged on the inner face 10a of the cover structure 10 in the state of being protruded toward the movable mass body 2 to stop the motion of the movable mass body 2 being moved farther from the board 3 along an axis z crossing the board 3. The stopper structure 12 is opposed to the movable mass body 2 to reduce the influences of conflicting interaction, particularly to reduce the resultant torsion moment of the movable mass body 2 around the elastic suspension element. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a device and a method for protecting an electronic apparatus in case of falling. SOLUTION: The device for protecting an electronic apparatus includes a motion-detection device for supplying at least one of alert signals S FF , S R in response to conditions of motion of the protection device, a counter 18, a first logic circuit 9 for incrementing the counter 18 in the presence of a first value "1" of the alert signals S FF and S R in a first motion condition, and a second logic circuit 20 for generating a protection signal INT based on the count value C of the counter 18. The first logic circuit 19 decrements the counter 18 in the presence of a second value "0" of the alert signals S FF and S R in the first motion condition. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation:要解决的问题:提供一种在掉电的情况下保护电子设备的装置和方法。 解决方案:用于保护电子设备的装置包括运动检测装置,用于响应于以下条件提供警报信号S SB / R S,S SB / R S / 保护装置的运动,计数器18,第一逻辑电路9,用于在存在警报信号S FF SB>和S R“的第一值”1“时递增计数器18, / SB>和第二逻辑电路20,用于基于计数器18的计数值C产生保护信号INT。第一逻辑电路19在存在第二值“0”的情况下递减计数器18 “在第一运动条件下的警报信号S FF SB>和S R SB>。 版权所有(C)2009,JPO&INPIT