Abstract:
An asynchronous master-slave serial communication system, a data transmission method, and a control module using the same are disclosed. The asynchronous master-slave serial communication system comprises a master control module and a slave control module. The master control module generates a check code according to an address information and a data information, and generates a data package according to the address information, the data information, the check code and the master clock signal. The slave control module generates a decoding data according to the data package and a slave clock signal, and generates the address information, the data information and the check code according to the decoding data.
Abstract:
An asynchronous master-slave serial communication system, a data transmission method, and a control module using the same are disclosed. The asynchronous master-slave serial communication system comprises a master control module and a slave control module. The master control module generates a check code according to an address information and a data information, and generates a data package according to the address information, the data information, the check code and the master clock signal. The slave control module generates a decoding data according to the data package and a slave clock signal, and generates the address information, the data information and the check code according to the decoding data.
Abstract:
A wiper head includes a cleanser-hosting pouch, a pulling-tab, an anti-leaking layer, and at least one wiper layer. The edges of the cleanser-hosting pouch are sealed for containing liquid cleanser therein, and a pull-tab is attached to a tear-able exit portion on one of the sealed edges. The cleanser-hosting pouch, the pulling-tab, and the anti-leaking layer are disposed between the first wiper layer and the second wiper layer. The anti-leaking layer, the first wiper layer, and the second wiper layer are joined together in forming at least one fixing portion for affixing to the cleaning device. The cleanser can be released from the cleanser-hosting pouch and infiltrates one of the wiping surfaces. The other wiping surface is used for drying the wetted floor or wall surface. Hence, the wiper head pocesses both wet and dry cleaning capabilities. The instant disclosure also provides a cleaning device utilizing the cleanser-hosting wiper head.
Abstract:
A motion control servo loop apparatus, comprising: a feed-forward control module, and a proportional-integral-derivative (PID) control loop and a compensation adder. The feed-forward control module is capable of generating a feed-forward compensation. The PID control loop further comprises: a proportional control module, an integral control module and a derivative control module. The proportional control module is capable of generating a proportional compensation. The derivative control module is capable of generating a derivative compensation. The integral control module uses a digital differential analyzer (DDA) algorithm to perform integration for accumulated errors with respect to each sampling clock at each DDA pulse and thus output an accumulated error, which is then processed to generate an integral compensation. Thereafter, the compensation adder receives the feed-forward compensation, the proportional compensation, the integral compensation and the derivative compensation to calculate a position error compensation for a motor driver.
Abstract:
A method and system enabling roaming between different wireless networks. A mobile device supporting low and high-tier wireless network standards is adapted to roam between a low-tier wireless network and a high-tier wireless network with lower bandwidth but more mobility than the low-tier wireless network. Via a virtual GPRS support node, a plurality of data packets and control signals are delivered between low and high-tier wireless networks.
Abstract:
An automatic adjusting device for adjusting the position of the center of gravity of an object comprises a weighting element, an elastic element, a base seat, and a hollow tube body. One end of the weighting element is connected to the elastic element and another end of the elastic element is connected to the base seat, such that the weighting element, the elastic element and the base seat are positioned within the hollow tube body. Initially, the C.G. of the device is located at the handle region of the device, and when the tube body is rapidly swung, the weighting element produces a centrifugal force that is greater than the force of the elastic element to move the weighting element to the front end of the tube body and move the C.G. simultaneously. When the swinging force of the tube body is released, the pulling force of the elastic element will cause the weighting element to be restored to its original position, and the C.G. will be simultaneously restored to its original position as well.
Abstract:
Technologies for a transistor with a ferroelectric gate dielectric are disclosed. In the illustrative embodiment, a transistor has a ferroelectric gate dielectric that is lattice matched to the channel of the transistor. In one embodiment, the ferroelectric polarization changes when voltage is applied and removed from a gate electrode, facilitating switching of the transistor at a lower applied voltage. In another embodiment, the ferroelectric polarization of a gate dielectric of a transistor changes when the voltage is past a positive threshold value or a negative threshold value. Such a transistor can be used as a one transistor memory cell.