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43results about How to "Simple logic control" patented technology

Password mask method for enhancing attack resistance ability

ActiveCN104618094AEnhanced resistance to differential power attacksSave hardware resourcesEncryption apparatus with shift registers/memoriesAlgorithmPassword
The invention discloses a password mask method for enhancing attack resistance ability. The password mask method for enhancing the attack resistance ability includes an encryption process. The encryption process includes steps: (1) introducing an original random number X, and performing exclusive-or operation on a clear text; (2) performing IP (internet protocol) initial displacement, and then dividing the clear text into an L portion and an R portion, and furthermore introducing random numbers Xy and Xz, generated in the middle process; (3) introducing F functions amended by mask codes, and performing n turns of F function operation; (4) combining the L portion with the R portion, and then performing an FP inverse initial permutation; (5) introducing the original random number X, and performing the exclusive-or operation so as to obtain a cipher text C. The password mask method for enhancing the attack resistance ability can achieve different effects of the mask codes by only using two types of the F functions amended by the mask codes during the whole encryption and decryption process, and only needs to achieve two types of SM-Box, and compared with other schemes with CPA attack resistance, the password mask method for enhancing the attack resistance ability can save a great number of hardware resources and reduce cost on the premise of substantially enhancing differential power attack and related power consumption attack resistance.
Owner:SHANDONG HUAYI MICRO ELECTRONICS

Tractor power gear shifting and power reversing transmission device

A tractor power gear shifting and power reversing transmission device comprises a power gear shifting module and a power reversing module, wherein the power gear shifting module comprises an input shaft and an output shaft; a plurality of clutches are mounted on the input shaft and the output shaft according to the number of gears; a plurality of meshed gears I are also arranged on the input shaft and the output shaft; the front end of the input shaft is in transmission connection with an engine; the rear end of the input shaft is connected with a tractor PTO device; the power reversing module comprises a reversing shaft and an idler shaft; the reversing shaft is provided with a forward clutch, a backward clutch and a gear II; the gear II is connected with both the forward clutch and the backward clutch; the rear end of the reversing shaft is connected with an auxiliary variable-speed driving shaft of a rear box body of a gearbox; two gears III are fixedly arranged on the idler shaft to form two-stage transmission; the power gear shifting module and the power reversing module are in gear-meshing transmission with each other; and the input shaft, the output shaft, the reversing shaft and the idler shaft are arranged by the adoption of parallel space. The tractor power gear shifting and power reversing transmission device has the advantages that the gear shifting time is short; the number of the gears is large; and the repairing and the maintenance are convenient.
Owner:FIRST TRACTOR

Convenient manually-operable automatic opening and closing device for electric vehicle charging port door

A convenient manually-operable automatic opening and closing device for an electric vehicle charging port door comprises a motor, a worm, a bevel gear, a spring, a nut, a charging port door spindle and a charging port door. The charging port door spindle is arranged in the charging port door, a group of external splines are arranged on the upper portion of the charging port door spindle, an external thread is arranged at the top of the charging port door spindle, the bevel gear is arranged on the charging port door spindle, and a group of internal splines are arranged in the bevel gear and engaged with the external splines. A spring is arranged on the bevel gear and fixed onto the charging port door spindle by the nut, and the worm is arranged on a rotating spindle of the motor and engagedwith the bevel gear. The device is simple, reasonable and compact in structure, the direct-current motor drives an actuating mechanism to push the charging port door to open and close, the electric opening and closing mode of the vehicle charging port door replaces an existing manual opening and closing mode, the device has a manual mode, and a user can select an automatic mode or the manual modeaccording to using habits in a normal usage state.
Owner:OECHSLER PLASTIC PROD TAICANG

Fingerprint detector

The invention discloses a fingerprint detector. The fingerprint detector comprises a power supply assembly, a capacitance type fingerprint sensor, a microcontroller and a signal processor, wherein the power supply assembly is electrically connected with the capacitance type fingerprint sensor, the microcontroller and the signal processor respectively; the microcontroller is connected with one end of the capacitance type fingerprint sensor, and the signal processor is connected with the other end of the capacitance type fingerprint sensor; the capacitance type fingerprint sensor comprises a plurality of sensing units arranged in an array manner and used for acquiring fingerprint information and transmitting the fingerprint information to the signal processor; the signal processor is used for processing the fingerprint information; the microcontroller is used for controlling the capacitance type fingerprint sensor and the signal processor according to the processing result of the signal processor. According to the fingerprint detector disclosed by the invention, when the capacitance type fingerprint sensor acquires the fingerprint information, a high-precision fingerprint image is acquired by enabling the fingerprint to form a capacitance array and then enabling the capacitance array to be combined with the sensing units to form a plurality of micro-capacitors.
Owner:柳州市金旭节能科技有限公司

40F and 40R power gear shifting tractor gearbox

A 40F and 40R power gear shifting tractor gearbox comprises a power gear shifting transmission device, a creeper gear transmission device, a power reversing transmission device and a section gear shifting transmission device, wherein a first shaft and a second shaft are arranged in the power gear shifting transmission device; one end of the first shaft is connected with a tractor engine; the other end of the first shaft is connected with a tractor PTO; clutches and matched gears are mounted on the first shaft and the second shaft; the clutches are used for the achievement of different gears; a third shaft and a sixth shaft are arranged in the power reversing transmission device; a forward clutch and a backward clutch are arranged on the third shaft; a two-stage external meshing mechanism is arranged in the creeper gear transmission device; the input end of the creeper gear transmission device is connected with the third shaft; the output end of the creeper gear transmission device is connected with the input end of the section gear shifting transmission device; the output end of the section gear shifting transmission device is connected with a rear axle; the first shaft and a fourth shaft are distributed in the longitudinal center plane of a tractor; the second shaft and the third shaft are correspondingly positioned on two sides of the longitudinal center plane of the tractor; and a fifth shaft and the third shaft are arranged on one and the same straight line. The 40F and 40R power gear shifting tractor gearbox has the characteristics of being simple in structure, complete in function and high in transmission efficiency.
Owner:FIRST TRACTOR

Multi-channel and high capacity parallel data acquisition device

The invention provides a multi-channel and high capacity parallel data acquisition device, belonging to data acquisition devices. The invention solves the problems of signal distortion due to the isolation of an input high bandwidth signal, increased isolation cost and channel delay caused by the increasing number of input signal channels and complexity of increasing control logics existing in the traditional multi-channel data acquisition device. A second control signal output end to a fourth control signal output end of a control module 1 are respectively connected with a first control signal input end to a third control signal input end of a digital isolation module, a first control signal output end to a third control signal output end of the digital isolation module are respectively connected with the first control signal input end to the third control signal input end of each analog-digital conversion component through a control bus, and the analog-digital conversion components are connected to the control bus in parallel. In the invention, parallel acquisition of any channel signal can be realized; a system sampling rate can be dynamically configured; any input signal is not influenced; and the system has simple logic control, and the device can be widely applied to various occasions requiring higher signal amplitude value precision and sampling speed.
Owner:HARBIN INST OF TECH

Battery cell proportioning and recombining device, battery module assembly line and battery cell proportioning and recombining method

The invention discloses a battery cell proportioning and recombining device, a battery module assembly line and a battery cell proportioning and recombining method. The battery cell proportioning and recombining device comprises: a first battery cell feeding station, which is provided with a first feeding tray for supplying a first battery cell; a second battery cell feeding station, which is provided with a second feeding tray for supplying a second battery cell; a first battery cell recombining station, which corresponds to the first battery cell feeding station; a second battery cell recombining station, which corresponds to the second battery cell feeding station; an assembly tray, which can move from the first battery cell recombining station to the second battery cell recombining station; a first carrying device, which is used for carrying the first battery cell of the first feeding tray located at the first battery cell feeding station to the assembly tray located at the first battery cell recombining station; and a second carrying device, which is used for carrying the second battery cell of the second feeding tray located at the second battery cell feeding station to the assembly tray located at the second battery cell recombining station. The device is compatible with any ratios of the first battery cell and the second battery cell, and is simpler in logic control and more convenient in model changing.
Owner:GUANGZHOU MINO AUTOMOTIVE EQUIP CO LTD

A pin multiplexing circuit for asynchronous interactive interface monitoring

The present invention adopts a pin multiplexing circuit for asynchronous interactive interface monitoring, the monitoring signal is an interactive signal between the asynchronous clock domain 1 and the clock domain 2, and the register configuration module performs register configuration for multiplexing the monitoring pins and function pins The monitoring pin control module selects the N monitoring signals of the asynchronous clock domain 1 and the clock domain 2 according to the N monitoring signals output by the register configuration module, and finally outputs 1 monitoring signal as the monitoring output signal; the functional pin control module According to the functional pin configuration output by the register configuration module, the multiplexing of M functional pins is controlled and managed, and finally one functional signal is obtained; the pin selection multiplexing module selects the monitoring function according to the monitoring function selection signal output by the register configuration module. The monitoring output signal output by the pin control module, as well as the function input signal, function output signal and function direction selection signal of the function pin control module are used for pin multiplexing determination to complete the final pin multiplexing function.
Owner:XIAN MICROELECTRONICS TECH INST
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