Phillips's Mifare card is widely used in the market due to its high security. For example, we use bus cards, meal cards for schools and corporate canteens, etc. each slice has an independent key (six-byte password). During communication, the key must be verified before data can be read and written. its key technology is to use the triple-encryption DES algorithm for key verification (that is, the keys transmitted between the reader and the card are encrypted by random numbers ), unlike the early
of people), financial resource Management (flow) and information resource management (flow). It will contain the customer/service architecture, using the graphical user interface, the application of open system production. In addition to the standard features already in place, it also includes other features such as quality, process operation management, and adjustment reports. 1th Place, Oracle, Applicable industries: Aerospace, automotive, consumer goods, discrete, electronic/computer, food
Sophomore study of the mode of electricity, and now picked up, lamented that their learning is too poor, so start summarizing notes with some informationPN Junction i.e. space charge zoneMany sub-particles in impurity semiconductors are generally provided by the impurity atoms, and the small children are the intrinsic excitation generationAfter the combination of P-type semiconductor and N-type semiconductor
this year Ten month to participate in the China Flash Forum, and was fortunate to share the flash memory technology with many friends in the form of a forum speech. We have been working on flash storage systems for a while, thinking deeply about flash storage from the perspective of products, markets, applications and technologies, and think about the future of storage as a flash memory or, in a strict sense, a semiconductor medium. The introduction o
Original link:FPGA development One: Why is FPGA so hot?FPGA development All-in-two: Why should engineers master the knowledge of FPGA development?FPGA development: The basic knowledge and development trend of FPGA (part1)FPGA development All-in-four: basic knowledge and development trend of FPGA (part2)Write in frontIn 2008, I took part in a number of technical seminars held by programmable device vendors, and I was impressed by the sheer numbers of engineers attending these seminars, which can
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1 IntroductionImage sensor is a device that converts optical signals into electrical signals, which is widely used in digital TV and visual communication market. The new concept of solid State imaging and a one-dimensional CCD (charge-coupled device charge-coupled device) model were proposed in the late 60, when the charge was found to be transferred through a semiconductor potential well in the American Bell face room. By the early 90, CCD technology
circle of Friends of the PK sports mileage. Freescale can develop more applications through the integration of various sensor types and some of the algorithms associated with the sensor, and then the bracelet product will bring more display, so Freescale will have a number of products.Sensor technology in mobile phones, wearable and a variety of electronic devices, the use of more and more, followed by long standby and power consumption problems. If the entire CPU of the mobile phone to do sens
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power consumption. With transistors, the structure of electronic circuits is greatly improved, making it easier to make high-speed computers. Computer of the third generation computer (1965-1971) The mid 1960s, small and medium scale integrated circuit computer(2 photos)With the development of semiconductor technology, integrated circuits have been successfully manufactured. Small and medium-sized integrated circuits become the main components of the
At present, many lighting brands in China have launched research on LED lighting lamps and achieved brilliant achievements, this can be seen from the brand and product of various types of LED lighting lamps on the market.Next, let's share with you the famous brands of LED lighting lamps and the brands of LED lighting lamps?
As a new lighting fixture, LED lighting has a competitive advantage in the market compared with traditional lighting fixtures. At present, many lighting brands in China have
. Nvidia can be said to be the industry's first automatic driving "decision" of the company, but the decision to rely on is not the GPU, but the CPU, so from the earliest Drive CX to the latest Xavier platform, NVIDIA used the ARM architecture core, Drive PX2 on the use of 6 core processors, 2 of which are customized by NVIDIA depth Denvor core, 4 are standard cortex-a57. Xavier is using 8 deeply customized ARM cores. With the core of the computing power that has been greatly enhanced by NVIDIA,
each circuit board of the receiving, luminous angle and the precision of the installation position, this process is not only extremely time-consuming, and the size will certainly increase with the number of lines in the same proportion.
North Branch Day painting R-fans series of core components are highly integrated modules, due to a large number of semiconductor packaging technology, R-fans interior can not see the layers of the circuit board, will
. Helpless, the calculation had to return to the second, with the Italian-French semiconductor cooperation, because it has MIPS authorization. Godson as the core of the CPU is also concerned about the French semiconductor Web page has been introduced, its name is more commercial "Loongson." Godson Dystocia, card in the patent one off.
Godson will support Android at the end of the year to push new Low-cost
power. Multi-core technology is the inevitable development of the processor in the last 20 years, the main factors that drive the performance of microprocessor are two: the rapid progress of semiconductor process technology and the continuous development of the system structure.
Each progress of semiconductor process technology brings forward new problems for the research of microprocessor architecture, an
As far as smart products are concerned, fingerprint recognition is one of the most widely used in biometrics, and it should be thanks to the huge mobile phone industry, which makes fingerprint identification technology at your fingertips. After the mobile phone market gradually saturation, fingerprint identification and found a most promising new market, namely smart door lock.
Fingerprint identification is now standard in smart door locks, especially in household smart door locks. In this, beca
Varistor is a resistive device with a nonlinear volt-ampere characteristic, which is mainly used to clamp the voltage when the circuit is under overvoltage and to absorb excess current to protect the sensitive device. The English name is "Voltage Dependent resistor" abbreviated as "VDR", or called "Varistor". The resistor body material of a varistor is a semiconductor, so it is a variety of semiconductor re
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