Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

97results about How to "Prevent implantation" patented technology

Piezoresistive-material-based resistivity imaging flexible pressure detection system and detection method

The invention discloses a piezoresistive-material-based resistivity imaging flexible pressure detection system, which comprises a pressure detection pad (1), a temperature sensor (2) buried in the pressure detection pad (1), injection electrodes (3) connected to the edge of the pressure detection pad (1), a plurality of uniformly distributed receiving electrodes (4) connected to the periphery of the pressure detection pad (1), wires (5) connected to the receiving electrodes (4) and the temperature sensor (2) and a signal acquisition circuit (10) connected with the wires (5), wherein the pressure detection pad (1) is made from a piezoresistive material; and when certain pressure is applied to the pressure detection pad, the resistivity of the material in the pressure detection pad can be changed. The injection electrodes connected to the pressure detection pad are used for injecting current into the pressure detection pad, the receiving electrodes arranged around the detection pad are used for receiving detected voltage signals, and an electrical impedance tomography principle is used for calculating resistivity distribution in the pressure detection pad to further invert the distribution of the pressure born by the pressure detection pad.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI

Chip legality authentication method and device

The embodiment of the invention discloses a chip legality authentication method and device. The chip legality authentication method comprises the steps that the terminal acquires a random number, performs preliminary encryption on the random number to obtain a first ciphertext, and sends the random number and the first ciphertext to an authenticated chip; the authenticated chip performs secondary encryption on the random number to obtain a second ciphertext, judges whether the second ciphertext is the same as the first ciphertext or not, encrypts the random number for the third time to obtain a third ciphertext if the second ciphertext is the same as the first ciphertext, and sends the third ciphertext to the terminal; the terminal encrypts the random number for the fourth time to obtain a fourth ciphertext; the terminal judges whether the fourth ciphertext is the same as the third ciphertext or not, wherein if the fourth ciphertext is the same as the third ciphertext, the authenticated chip is a legal chip. According to the chip legality authentication method, due to such a bidirectional authentication mechanism, an illegal authentication request can be effectively avoided, and the chip can only be authenticated by a legal chip authenticator, so that the safety of chip authentication is guaranteed.
Owner:INSPUR BEIJING ELECTRONICS INFORMATION IND

Arrowhead cultivation method

The invention discloses an arrowhead cultivation method which comprises the following steps of waterlogged compost, wherein swamp mahogany, tea seed residue and peanut shells are ploughed under a plough layer of a breeding land as base fertilizers; seedling, wherein arrowheads are cultivated in the breeding land according to the planting distance of 5 centimeters * 5 centimeters at the early to middle of the March; transplanting, wherein the arrowheads are transplanted to a field from the breeding land at the early to middle of the June; field managing, wherein topdressing is carried out once on the arrowheads after the arrowheads are transplanted for 7-10 days, then topdressing is carried out once every half a month until the early to middle of the August, the final topdressing is carried out at the middle to late of the August, 50-60 kilograms of plant ash and 500-800 kilograms of farmyard manure are applied per mu; field water draining, wherein the water drainage is carried out after the middle of the November, and fruits can be dug out between the late of the November to the early to middle of the December. In the seedling land, the swamp mahogany, the tea seed residue and the peanut shells are ploughed as the base fertilizers and good in fertility, the swamp mahogany and the tea seed residue have a disinfection effect and can eliminate bacteria in the seedling land, growth of weak seedlings in the nursery stage can be guaranteed, the weak seedlings with diseases are prevented from being planted in the field, and causative agents are eliminated substantially.
Owner:莫秀芳
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products