Step-up transformer and the piezoelectric ceramic preparation methods, using the input and output terminals a series arrangement of the mechanical resonance of the piezoelectric ceramics in the boost output terminal and to obtain a high electric power conversion efficiency. Co-fired with integrated .....
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The present invention relates to a positioning system and method for hierarchical, using the information server and the master device connected thereto, from the device, the information server information including location information database to track and alarm modules, the master device includes .....
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本发明涉及对数据进行编码及解码的方法和系统。编码方法包括：基于奇偶校验矩阵(40)从k个数据比特中创建m个奇偶比特，奇偶校验矩阵(40)包括数据部分(41)和奇偶部分(42)。所述奇偶部分由分块子矩阵所组成，且每一分块子矩阵可为以下任意一种：零矩阵、单位矩阵和置换矩阵；其中定义上对角线为所述奇偶部分中从第二列的第一分块子矩阵延伸至最后一列的倒数第二个分块子矩阵的连线，且所述上对角线上的每一分块子矩阵为单位矩阵或置换矩阵，而所述上对角线上方的分块子矩阵(44)则为零矩阵；所述奇偶部分从第二列至倒数第三列中的每一列在所述上对角线(45)下方都包含有一个或多个单位矩阵或置换矩阵。
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An apparatus and method for detecting the oscillation amplitude of a bonding tool includes a sensing unit disposed adjacent to and at a distance from the bonding tool. The sensing unit includes a pair of electrodes, a piezoelectric sensing layer located between the pair of electrodes, and a membrane.....
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An portable tracking device integrating a mobile phone module (e.g. based on GSM or 3G networks), a GPS module, a radio Beacon and ultrasonic beacon. The tracking device is normally in a hibernated state when the entire device consumes little energy and require no periodically changing or recharging.....
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