Abstract: A wheel corner polishing device includes a station switching system, a valve hole polishing system, a bolt hole polishing system and a rim and cap section synchronous polishing system. The wheel corner polishing device can automatically polish four positions including bolt hole corners, a valve hole corner, outer rim corners and cap section corners of a wheel via upper and lower stations and coordination of the systems.

Abstract: A wheel outer rim fillet dressing device, wherein after a wheel is roughly positioned, an electric cylinder drives a moving plate to descend to an appropriate position, an adjusting cylinder drives a second sliding table to move away from a first sliding table, the first sliding table moves synchronously with the second sliding table under the action of a second gear rack, thus the distance between a precision positioning post on the first sliding table and a precision positioning post on the second sliding table is adjusted, and the precision positioning posts contact a vertical surface of a cap seam allowance of the wheel and hold the wheel tightly. The adjusting cylinder is restarted, and the outer rim fillets can be dressed when the distance between first and second cutters for dressing wheel outer rim fillets is adjusted to an appropriate position and under the cooperation of the rotating wheel.

Abstract: A wheel fixture is disclosed. A main shaft drives a first positioning pull rod on a chuck body to extend and contract in the radial direction via a tightening screw, a clamping jaw is at a position within the travel range of extension and contraction, a wheel is positioned and clamped by the fixture, airtight support blocks are pressed down by the wheel and flush with the support plane of the clamping jaw, at this time, airtight ejector rods press second O rings to prevent air from flowing out of the airtight detection position, a detection system of a machine tool detects a preset air pressure value which indicate that the wheel has been placed correctly, and if the wheel is not placed correctly on the fixture, the machine tool will alarm through the detected pressure feedback.

Abstract: A milling fixture for forged wheel includes a connecting plate installed on a milling machine table, a linear bearing installed on the connecting plate, a small diameter end of a positioning rod penetrates through a spring and a linear bearing, and a limiting screw installed on a side wall of the linear bearing and connected with the positioning rod. Under the coaction of the spring and an external force, the positioning rod is configured to move in the linear bearing. Bidirectional threaded rods are uniformly installed on a bottom plate, one end of each of the bidirectional threaded rods penetrate through pressure claws, the pressure claws are sandwiched between compression nuts and the connecting plate. The fixture can meet the requirement for milling a forged wheel, and at the same time, has the characteristics of a simple structure, is convenient to manufacture, provides stable performance and is low cost.

Abstract: Disclosed is a wheel outer rim fillet dressing device, including a rough wheel positioning system, a precision wheel positioning system, a wheel rotating system and a cutter dressing system. After a wheel is roughly positioned, an electric cylinder drives a moving plate to descend to an appropriate position, an adjusting cylinder drives a right sliding table to move right, a left sliding table moves synchronously with right sliding table under the action of a second gear rack, thus the distance between a precision positioning post on left sliding table and a precision positioning post on right sliding table is adjusted, and precision positioning posts contact vertical surface of cap seam allowance of wheel and hold the wheel tightly. The adjusting cylinder is restarted, and outer rim fillets can be dressed when the distance between two dressing cutters is adjusted to an appropriate position and under the cooperation of rotating wheel.

Abstract: Disclosed is a wheel corner polishing device, being composed of a station switching system, a valve hole polishing system, a bolt hole polishing system and a rim and cap section synchronous polishing system. The device can meet the requirement of an automatic production line, and can automatically polish four positions including bolt hole corners, a valve hole corner, outer rim corners and cap section corners of a wheel via reasonable process layout, upper and lower stations and coordination of the systems, so that the minimum fillets of the four positions meet the requirements. The device has the characteristics of short cycle, high efficiency, skilful design, strong generality, easy manufacture and the like.

Abstract: Disclosed is an aluminum alloy hub surface treatment process. The specific process flow comprises: providing an aluminum alloy hub blank, sanding, polishing, pre-treating, spraying electroplating silver paint, flash-drying, spraying celluloid paint, curing and discharging. The process not only has the mirror effect of electroplated products, but also has many advantages of simplicity, low cost, no heavy metal pollution and the like.

Abstract: Disclosed is an aluminum alloy hub surface treatment process. The specific process flow comprises: providing an aluminum alloy hub blank, sanding, polishing, pre-treating, spraying electroplating silver paint, flash-drying, spraying celluloid paint, curing and discharging. The process not only has the mirror effect of electroplated products, but also has many advantages of simplicity, low cost, no heavy metal pollution and the like.

Abstract: In some implementations, an apparatus includes an echo canceller that generates an echo interference compensation signal that compensates for an echo interference signal in a communication signal, a crosstalk canceller that generates a crosstalk interference compensation signal that compensates for a crosstalk interference signal in the communication signal, and a combiner that generates a combined interference compensation signal based on the echo interference compensation signal and the crosstalk interference compensation signal.

Abstract: A system including a processor that receives a first digital signal corresponding to a first signal received by the system, and a second digital signal corresponding to a second signal transmitted by the system; generates a first control signal based on the first and second digital signals; and generates a first output signal based on the first control signal and a second analog signal corresponding to the second signal. A cancellation device generates a second control signal based on a first analog signal corresponding to the first signal, and a third control signal based on the first control signal and the first output signal; selects the second or third control signal when the system operates in a first or a second mode; and outputs a second output signal to cancel interference in the first signal according to the second analog signal and one of the second and third control signals.

Abstract: A compensator generating a compensation signal to compensate for nonlinear echo in an output of a current source. The nonlinear echo is a result of transitioning the current source between an ON state and an OFF state. The compensator includes driving, weighting, function, and compensating circuits. The driving circuit receives a first signal that is based on the output of the current source. The weighting circuit is configured to generate a second signal based on weighted versions of the first signal. The function circuit, based on the second signal, (i) updates each of multiple functions, and (ii) selects a first function. The driving circuit generates a driving signal based on the first function selected by the function circuit. The compensating circuit generates the compensation signal based on the driving signal to compensate for the nonlinear echo provided by the output of the current source.

Abstract: A compensator generating a compensation signal to compensate for nonlinear echo in an output of a current source. The nonlinear echo is a result of transitioning the current source between an ON state and an OFF state. The compensator includes driving, weighting, function, and compensating circuits. The driving circuit receives a first signal that is based on the output of the current source. The weighting circuit is configured to generate a second signal based on weighted versions of the first signal. The function circuit, based on the second signal, (i) updates each of multiple functions, and (ii) selects a first function. The driving circuit generates a driving signal based on the first function selected by the function circuit. The compensating circuit generates the compensation signal based on the driving signal to compensate for the nonlinear echo provided by the output of the current source.

Abstract: In some implementations, an apparatus includes an echo canceller that generates an echo interference compensation signal that compensates for an echo interference signal in a communication signal, a crosstalk canceller that generates a crosstalk interference compensation signal that compensates for a crosstalk interference signal in the communication signal, and a combiner that generates a combined interference compensation signal based on the echo interference compensation signal and the crosstalk interference compensation signal.

Abstract: A nonlinear echo compensator comprises a mapping circuit that includes a weighting circuit that generates a weighted signal based on a current symbol and a prior symbol and a function generating circuit that selects one of N functions based on the weighted signal, where N is an integer greater than one. The mapping circuit generates a driving signal based on the selected one of the N functions and the weighted signal. A canceling circuit generates a nonlinear echo compensation signal based on the driving signal.

Abstract: An adaptive analog echo/near-end crosstalk (NEXT) cancellation system includes a processor configured to receive a first digital signal corresponding to a first signal received by the system, receive a second digital signal corresponding to a second signal transmitted by the system, and generate a first error control signal based on each of the first digital signal and the second digital signal. A cancellation device is configured to generate a second error control signal based on a first analog signal corresponding to the first signal. The cancellation device selectively outputs the second error control signal or the first error control signal based on whether the system is operating in a first mode or a second mode, respectively. The cancellation device selectively outputs a cancellation signal according to one of the second error control signal and the first error control signal, and a second analog signal corresponding to the second signal.

Abstract: Methods and apparatus describe techniques for reducing interference signals in a communication signal. An apparatus includes, in at least one aspect, a transceiver circuit to receive a communication signal that includes one or more interference signals and a compensation circuit to generate a compensation signal to compensate for the one or more interference signals in the communication signal based on one or more cancellation coefficients and one or more data symbols.

Abstract: A transceiver includes an analog front end (AFE) device and first, second, third, and fourth transmitters. A digital signal processor (DSP) receives digital receive signal and digital transmit signals and generates a shared error control signal and first, second, third, and fourth individual error control signals. An echo canceller system generates an estimated echo signal. First, second, and third NEXT canceller systems generate first, second, and third estimated NEXT signals, respectively, each based on the second analog receive signal and respective ones of the analog transmit signals from the second, third, and fourth transmitters during the first mode and each based on the shared error control signal, respective ones of the second, third, and fourth individual error control signals, and the respective ones of the analog transmit signals from the second, third, and fourth transmitters during the second mode.

Abstract: The present invention relates to a new compound of salvianolic acid L, its preparation method, a pharmaceutical composition containing the salvianolic acid L, and its use for preparing a medicament for treating cardio-cerebrovascular diseases.

Abstract: Circuits, systems, methods and software for controlling a power conversion and/or correcting and/or controlling a power factor in such conversion(s). The present invention generally takes a computational approach to reducing or minimizing zero current periods in the critical mode of power converter operation, and advantageously reduces zero current periods in the critical mode of power converter operation, thereby maximizing the power factor of the power converter in the critical mode and reducing noise that may be injected back into AC power lines. The present power factor controller allows for greater design flexibility, reduced design complexity, and reduced resolution and greater tolerance for error in certain parameter measurements useful in power factor correction and/or control.

Abstract: Circuits, systems, methods and software for controlling a power conversion and/or correcting and/or controlling a power factor in such conversion(s). The present invention generally takes a computational approach to reducing or minimizing zero current periods in the critical mode of power converter operation, and advantageously reduces zero current periods in the critical mode of power converter operation, thereby maximizing the power factor of the power converter in the critical mode and reducing noise that may be injected back into AC power lines. The present power factor controller allows for greater design flexibility, reduced design complexity, and reduced resolution and greater tolerance for error in certain parameter measurements useful in power factor correction and/or control.