31results about How to "Avoid dead time" patented technology

An external storage device stores automatic music playing data files, each file including data of a progression of musical notes constituting a performance of a music piece, and registration data files, each file including data of a set of parameters to determine the conditions for the performance of the music piece. While an automatic music playing data file of a piece of music and registration data files are loaded into a working memory and are being processed to play the current piece of music automatically, the next automatic music playing data file of the next piece of music to be played and the registration data files to be used next are prefetched from the external storage device into an internal storage device temporarily to be prepared for being transferred to the working memory for the successive automatic music playing after the automatic playing of the current music piece is over. Thus, dead time between the adjacent pieces of automatically played music and delay in effectuating the registrations will be avoided.

The present invention discloses systems and methods for communicating with a storage device configured to store signed program files, the method including the steps of: generating, by a program process, a respective command number associated with a process command; issuing, by the program process, the process command with the respective command number to the storage device; and according to the respective command number, verifying, by the storage device, whether the process command originated from a trusted program process launched from the program files stored in the storage device. Preferably, the step of verifying includes: generating, by the storage device, a respective initial command number associated with a requested program file; and attaching, by the storage device, the respective initial command number to a copy of the requested program file.

The invention discloses an in-vehicle intelligent wearable device and an alarm method, and relates to the technical field of signal transmitting devices represented according to a no-wire electrical circuit. The device comprises a CO concentration sensor and a communication interface. When the CO concentration detected by the CO concentration sensor is greater than a preset CO concentration, the CO concentration sensor transmits an alarm signal through the communication interface. The method detects the in-vehicle CO concentration through employing the CO concentration sensor. When the in-vehicle CO concentration detected by the CO concentration sensor is greater than the preset CO concentration, the CO concentration sensor gives an alarm through the device provided by the invention. The device and method can detect the in-vehicle CO concentration in real time, carry out corresponding operation, and prevent a person tripped in a vehicle from being poisoned by CO.

The present invention discloses systems and methods for communicating with a storage device configured to store signed program files, the method including the steps of: generating, by a program process, a respective command number associated with a process command; issuing, by the program process, the process command with the respective command number to the storage device; and according to the respective command number, verifying, by the storage device, whether the process command originated from a trusted program process launched from the program files stored in the storage device. Preferably, the step of verifying includes: generating, by the storage device, a respective initial command number associated with a requested program file; and attaching, by the storage device, the respective initial command number to a copy of the requested program file.

An optical device creates 3D images comprising a field of points, each point comprising horizontal, vertical, and distance metrics. The device comprises an illumination subsystem, comprising light sources, such as LEDs, a non-resonant beam steering element such as a micro-electro-mechanical system (MEMs) mirror, beam-shaping optics, a beam director plate, and a diffuser. The device also comprises an imaging subsystem with one or more optical detector chips that measure time-of-flight (TOF). Devices may dynamically and sequentially images solid-angle sub-regions of interest, in an arbitrary order, out of a total FOV, using eye-safe illumination. The corresponding received image portions are stitched together. The beam steering element is non-resonant, allowing arbitrary and rapid changes to its pointing vector. Beam shaping optics generates rectangular solid-angle illumination. One detector chip integrates light from one sub-region while another chip is reads out image data.

In the vehicle brake system (10) having a valve (22) arranged between the first and second chambers (20, 24), through which the first chamber (20) can be selectively The fluid is guided into the second chamber (24) and the valve is equipped with a pre-stage (50, 52) and a main stage (54, 56) for guiding the fluid, according to the invention the pre-stage (50, 52) outside The control opening is configured and the main stage (54, 56) is configured to automatically open when the preceding stage (50, 52) is opened.

A facility for repairing flaws in pieces of wood (3) has a device (13) for recognizing and surveying the flaws, has a conveyor device (1), which receives the pieces of wood (3) to be repaired in a manner correct for processing, and has tools, which are displaceable in multiple axes in relation to the pieces of wood (3) on the conveyor device (1), for repairing the flaws. To ensure advantageous design conditions, the conveyor device (1) forms a collar, which revolves about at least one vertical axis, made of receptacle segments (2) which hold the pieces of wood (3) in a vertical processing location, and the receptacle segments (2) are provided with the tools, which are displaceable in multiple axes, for repairing the flaws.

The invention relates to a blue leather separator comprising a grading mechanism and a stacking mechanism. The grading mechanism mainly comprises a grading conveyor belt assembly and a grading operation platform. The stacking mechanism comprises a stacking conveyor belt and a stacking platform. A fixed conveyor belt is used for receiving blue leather conveyed by the grading conveyor belt assembly and conveying the blue leather to a movable conveyor belt under the fixed conveyor belt, and the entire movable conveyor belt is driven by a drawing mechanism to slide along the horizontal direction so as to stack the blue leather on the corresponding stacking platform. The blue leather separator has the advantages that blue leather to be selected passes through the grading mechanism of a blue leather separating system and is graded manually according to an appearance and quality standard; and the stacking mechanism of the blue leather separating system is controlled to stack the graded blue leather to the corresponding stacking area according to grading results. Placing the blue leather on the stacking platform manually after grading is omitted, labor force of workers is reduced, and working efficiency is improved.

A numerical controller generates movement command data, and performs an interpolation process based on the generated movement command data to generate and output interpolation data. Further, in the case of a state in which a press operation in punch press machining is started from a different position from a position of a preset rising edge, an overlap time is calculated based on a position of a punch head when the press operation is started, and an output timing of interpolation data related to an axis controlling the press operation is controlled based on the calculated overlap time. In this way, even when there is a change in press stroke, a dead time may be prevented from being generated.

The invention discloses a control method applicable to a doubly salient electro-magnetic motor. According to the method, a three-phase twelve-beat control strategy is provided for switching-on and switching-off of a power converter main switch tube based on inductance characteristics of the doubly salient electro-magnetic motor in operation. In the premise of ensuring reliable operation of the motor, in order to inhibit torque pulsation and improve output torque, an electrical cycle is divided into twelve stages, each stage is corresponding to a switching-on mode of the switch tube for controlling a current in the corresponding direction to flow into the corresponding phase, so that the motor forms twelve working conditions in the electrical cycle. According to the motor provided by the invention, the torque pulsation caused by the condition of adding a dead time (namely the time when an upper switch tube and a lower switch tube are simultaneously switched off) into a commutation time is avoided, an effective section of the inductance can be fully utilized to introduce the current in the corresponding direction, and thus the output torque is improved to a certain extent.

The invention discloses a surface-borehole-based nuclear magnetic resonance detection system and a method, wherein the nuclear magnetic resonance detection system comprises: an emission module including a main machine, a PC connected with the main machine and an emission ring connected with the main machine wherein the emission ring is arranged on a ground and used to emit an exciting magnetic field and the PC is used to control the emission process of the emission ring; and a receiving module in communicative connection with the emission module and comprising a receiver and a receiving ring connected with the receiver wherein the receiving module is arranged under a well; the receiving ring is used to receive the water-body-generated nuclear magnetic resonance signal; and the receiver is able to acquire the under-well signal based on preset initial instructions and saves the under-well signal in a storage module and finally, through inversion software, processes the under-well signal so as to obtain the under-well distribution information. The system and the method of the invention solve the technical problem that detection information is not accurate due to the relatively long dead zone time in the currently available SNMR method.