34results about How to "No need to increase the cost" patented technology

The invention provides a radio frequency pulse power coupling method and apparatus for a vacuum treatment cavity. The method comprises the following steps: presetting a first reflection power standard value in a first radio frequency pulse signal generator and a reflection power standard value in a second radio frequency pulse signal generator; and searching for a first radio frequency and a second radio frequency corresponding to minimum reflection power by use of a self-learning cycling mode. According to the radio frequency pulse power coupling method and apparatus for the vacuum treatment cavity, through automatic adjustment of a radio frequency pulse frequency, by use of the self-learning cycling mode, accurate frequency sweeping is carried out for a small scope, the feedback of radio frequency power is obtained, and minimum reflection radio frequency power is searched for. The realization cost is low, there is no need to add too much equipment cost, a certain time delay does not exist, within such a period, power obtained by a load is controllable, and the etching process is not influenced.

The invention discloses an apparatus for enhancing the signal-to-noise ratio of a Raman spectrometer. The apparatus comprises a main controller, a Raman laser, a laser constant current drive circuit, a linear CCD and a CCD signal processing circuit, wherein the linear CCD is electrically connected with the CCD signal processing circuit, the Raman laser is electrically connected with the laser constant current drive circuit, the main controller is electrically connected with the linear CCD, the CCD signal processing circuit and the laser constant current drive circuit, and the main controller receives an external command signal and controls the electrically connected parts. The invention further discloses a method for improving the signal-to-noise ratio of the Raman spectrometers. Through usage of an adaptive time-sharing under-saturation exposure method, precision control of the CCD and revision of software algorithms, the high signal-to-noise ratio of the Raman spectrometer using the low-cost CCD is obtained, and cost for any additional hardware is not needed, so the cost of the Raman spectrometer can be significantly reduced.

The invention discloses a pairing method of a damper controller and a thermostat, an area control system and an air conditioner. The method includes: acquiring a pairing frame of the damper controller; wherein, the pairing frame includes: ID number, operation code and area number; ID number is the ID number of the damper controller, the operation code is used to distinguish other damper controllers that are in the pairing state at the same time, and the area number is the area number of the thermostat that needs to be paired; the pairing frame is broadcast cyclically, And detect whether the reply frame of the thermostat is received; judge whether the damper controller and the thermostat are paired successfully according to the pairing frame and the reply frame, and execute the corresponding operation according to the judgment result. The invention solves the problem of complicated pairing operation and high restriction of the regional control system in the prior art, the pairing operation is simple, does not need to increase hardware cost, has high accuracy, and improves user experience at the same time.

The invention discloses a device and a method for controlling the transient effect in an erbium-doped fiber amplifier (EDFA). The device comprises a photoelectric detection diode, a transconductance circuit, an analog to digital converter, a digital processor and a pump laser which are connected in sequence, wherein the pump laser is used for the analog to digital converter, and the photoelectricdetection diode is used for receiving the optical fiber inputted by the EDFA. The method comprises the following steps: making the digital signals obtained by the conversion of the analog to digital converter enter a first in first out (FIFO) data queue to capture the change of optical intensity; comparing the data on the head and the tail of the FIFO data queue under the normal stage model and making the FIFO data queue be in the pre-regulation stage mode if the change of the optical intensity being more than a set proportion; locking the data on the head of the FIFO data queue, continuouslycomparing the data on the head of the FIFO data queue and the data on the tail of the FIFO data queue and making the FIFO data queue be in the over-regulation stage model if the change of the opticalintensity being more than a preset proportion; and finally adjusting the control current of the pump laser of the EDFA rapidly when the optical intensity changing suddenly so as to control the transient effect. The invention can be used for adjusting the EDFA of any type and any requirement without changing the hardware, thus the production efficiency and the flexibility are improved.

The invention discloses a lifting hook pulley with the function of rapidly regulating the rope reeling rate. The lifting hook pulley is characterized by comprising a lifting hook, a connecting frame, a left pulley block, a right pulley block, a left hoisting winch, a right hoisting winch and a steel wire rope, wherein the lifting hook is hinged to the lower end of the connecting frame; one side of the upper end of the connecting frame is hinged to the lower end of the right pulley block; the other side of the upper end of the connecting frame is hinged to the lower end of the left pulley block; hinging between the connecting frame and the left pulley block is detachable connection; the left pulley block and the right pulley block are arranged at the head of a boom; one end of the steel wire rope is arranged on the left hoisting winch; and the other end of the steel wire rope penetrates through the left pulley block and the right pulley block sequentially and is connected with the right hoisting winch finally. The lifting hook pulley has a simple structure and can rapidly realize the rate regulating function without adding extra overmuch design and manufacturing costs.

A liquid crystal display that can hide the defected pixels and hiding method are disclosed that is applied to the display mode of liquid crystal display screen, first it provides a base plate, and detects and records the address data of defected pixels in the base plate, and responds to the address data of defected pixels, and interrupts the display information of the defected pixels.

The invention discloses a keypad controller and a method for exchanging data between the keypad controller and a host computer. The method comprises the following steps: step 1, storing the exchanged data between the keypad controller and the host computer in a local memory which is capable of being accessed by the host computer without interrupting the operation of the keypad controller; and step 2, notifying the keypad controller or the host computer to read the exchanged data stored in the local memory through an idle third port in the keypad controller. The invention obviates the interruption of the keypad controller while transmitting every byte of data and solves the problems during frequent data exchange between the current keypad controller and the host computer without increasingthe hardware cost.