摘要:
A coding-decoding device and a coding-decoding method that take less time for coding and decoding are provided while using less number of logic gates. A memory device 15 substantially stores b pieces of conversion logic equations produced with a conversion logic equation producing device 13. An operation device 17 has a programmable hardware logic circuit to constitute logics sequentially according to plural execution unit logic equations obtained by dividing b pieces of conversion logic equations stored in the memory device 15 into execution units for respective execution unit logic equations using the hardware logic circuit. Besides, the operation device 17 sequentially divides and calculates the second sentences from the first sentences according to the constituted logics. An output device 19 collects and outputs the second sentences calculated with the operation device 17.
摘要:
A switch circuit that is simple in constitution and capable of reliably controlling a switch cell is provided. Since the, gate terminal G1 of a transistor M1 in a switch cell SC is connected only to the terminal 37 of a transistor M2, when the transistor M2 is set to off, the moving path of the charge accumulated at the gate G1 of the transistor M1 is shut off. Consequently, even if the transistor M2 is set to an on state and immediately set back to an off state, the transistor M1 remains for some period of time in an on or off state corresponding to the switching data given through a bit line BL. It is possible to cause the transistor M1 to remain in an on or off state for a specified period of time without disposing a specific circuit for temporary storing the switching data.
摘要:
A switch circuit that is simple in constitution and capable of reliably controlling a switch cell is provided. Since the, gate terminal G1 of a transistor M1 in a switch cell SC is connected only to the terminal 37 of a transistor M2, when the transistor M2 is set to off, the moving path of the charge accumulated at the gate G1 of the transistor M1 is shut off. Consequently, even if the transistor M2 is set to an on state and immediately set back to an off state, the transistor M1 remains for some period of time in an on or off state corresponding to the switching data given through a bit line BL. It is possible to cause the transistor M1 to remain in an on or off state for a specified period of time without disposing a specific circuit for temporary storing the switching data.
摘要:
A switch circuit that is simple in constitution and capable of reliably controlling a switch cell is provided. Since the gate terminal G1 of a transistor M1 in a switch cell SC is connected only to the terminal 37 of a transistor M2, when the transistor M2 is set to off, the moving path of the charge accumulated at the gate G1 of the transistor M1 is shut off. Consequently, even if the transistor M2 is set to an on state and immediately set back to an off state, the transistor M1 remains for some period of time in an on or off state corresponding to the switching data given through a bit line BL. It is possible to cause the transistor M1 to remain in an on or off state for a specified period of time without disposing a specific circuit for temporary storing the switching data.
摘要:
The present invention aims at providing a novel enciphering and deciphering apparatus and an enciphering and deciphering method related thereto, which are respectively capable of contracting the time required for enciphering and deciphering processes and decreasing the number of logic gates provided in the apparatus. Essentially based on an equation Xki=1+Σ((J=1, i)iCj·Xk−1j) and also based on an initial value consisting of a group of power raising values Xk0j corresponding to j=1 through m in relation to k−1=k0, an arithmetic operating unit 21 seeks a second expression Yk1 by serially computing a group of power raising values Xki corresponding to i=1 through m in relation to one unit of k shown in the above equation in a range from k=k0+1 up to k=k1 by applying binomial coefficients stored in a coefficient memory unit 17. Accordingly, once those binomial coefficients corresponding to predetermined integers n and m are stored in memory, thenceforth, it is possible to contract the time required for executing an enciphering or deciphering process related to identical integers n and m.
摘要翻译:本发明旨在提供一种新颖的加密和解密装置及其相关的加密和解密方法,它们能够缩短加密和解密处理所需的时间并减少设备中提供的逻辑门数。 基本上基于方程式X 1 i S iΣΣ((J = 1,i)< i< 并且还基于由一组增力值组成的初始值X< k>< j>< j> 相对于k-1 = k0对应于j = 1到m的算术运算单元21通过串联计算一组功率提升值X 存储在系数存储单元17中的系数。 因此,一旦对应于预定的整数n和m的二项式系数被存储在存储器中,则可以缩小执行与相同的整数n和m相关的加密或解密处理所需的时间。
摘要:
To provide a memory device with a function to perform an operation and a method of performing an operation and storage which can save space and cost and which can start, immediately after the power source is recovered, the processing which was being performed at the time of power failure. A memory cell MC can store two independent data sets; DRAM data (volatile data) and FeRAM data (non-volatile data). Thus, the number of memory cells can be reduced to a half. Also, the DRAM data to be used in the next operation of the two data sets which have been read out for the previous operation are temporarily held in a hold circuit 21 of an operation unit OU and then written back into the memory cell MC in a non-volatile manner as new FeRAM data for preparation of the next operation. Thus, even when the power source is shut down by an unexpected trouble, the data necessary for the next operation are not lost.
摘要:
There is disclosed a method of manufacturing a semiconductor device comprising a step of forming an isolation film having a patterned hole on a major surface of a semiconductor substrate of a P conductivity type, the wall of the isolation film defining the patterned hole having a large step, a step of forming a polysilicon layer on the major surface of the structure, a step of forming a first interlaid SiO.sub.2 layer on the polysilicon layer, a step of patterning the SiO.sub.2 layer and polysilicon layer using reactive ion etching process, thereby forming on the region of the substrate a gate electrode and a first SiO.sub.2 film superposed thereon, the continuous side wall of the gate electrode and first SiO.sub.2 film having a large step, a step of implanting an impurity ion into the substrate using the first SiO.sub.2 film as a mask, thereby forming an impurity diffused region of an N conductivity type in the substrate, a step of forming a second interlaid SiO.sub.2 layer on the major surface of the structure, and a step of applying reactive ion etching to the second SiO.sub.2 layer, thereby forming a contact hole in the second SiO.sub.2 layer leading to the impurity diffused region, while leaving part of the second SiO.sub.2 layer on the side walls of said isolation film, gate electrode and first SiO.sub.2 film.
摘要:
A method for element isolation utilizing insulating materials on a semiconductor substrate in which an oxidizable material layer of polycrystalline silicon or the like is formed overlying the substrate surface, the oxidizable material layer disposed at the element-isolation-forming regions is oxidized using an oxidation mask, the oxidation mask is removed and, if necesary at least part of the unoxidized oxidizable material below the mask is removed. Predetermined processes such as oxidation and diffusion are performed thereafter to form semiconductor elements such as MOS transistors and bipolar transistors with high packaging density and reliability.
摘要:
Dust is removed from a running web by a counterflow liquid bath and downstream application of one or more high velocity air jets to a localized convex curvature of the web, said application of high velocity air jets being accompanied by application of vacuum pressure to remove the mist created by the air jets.
摘要:
A bending apparatus of a head gimbal assembly includes a suction unit configured to attract the head gimbal assembly, a movement unit configured to move a long tail connected to a terminal part, a stopper against which the moved long tail is butted, a transmission type optical sensor configured to detect that the long tail is positioned to the stopper, a tail holder configured to hold a part of the long tail on a work table, a roller configured to compress the terminal part against the tail holder and to bend the terminal part relative to the long tail at a right angle, and a controller configured to control, based on a detection result of the transmission type optical sensor, a movement of the tail holder to the work table and a movement of the roller to the tail holder.