47 results about "Coverage function" patented technology

An apparatus is provided for protecting a basic input / output system (BIOS) in a computing system. The apparatus includes a BIOS read only memory (ROM), a tamper detector, a random number generator, a JTAG control chain, a fuse, a machine specific register, and an access controller. The BIOS ROM includes BIOS contents stored as plaintext, and an encrypted message digest, where the encrypted message digest has an encrypted version of a first message digest that corresponds to the BIOS contents. The tamper detector is operatively coupled to the BIOS ROM, and is configured to generate a BIOS check interrupt at a combination of prescribed intervals and event occurrences, and is configured to access the BIOS contents and the encrypted message digest upon assertion of the BIOS check interrupt, and is configured to direct a microprocessor to generate a second message digest corresponding to the BIOS contents and a decrypted message digest corresponding to the encrypted message digest, and is configured to compare the second message digest with the decrypted message digest, and is configured to preclude the operation of the microprocessor if the second message digest and the decrypted message digest are not equal. The random number generator disposed within the microprocessor, and generates a random number at completion of a current BIOS check, which is employed to set a following prescribed interval, whereby the prescribed intervals are randomly varied. The JTAG control chain is configured to program the combination of prescribed intervals and event occurrences within tamper detection microcode storage. The fuse is configured to indicate whether programming of the combination of prescribed intervals and event occurrences is to be disabled. The machine specific register is configured to store a value therein. The access control element is coupled to the fuse, the machine specific register, and the JTAG control chain, and is configured to determine that the fuse is blown, and configured to direct the JTAG control chain to enable programming of the combination of prescribed intervals and event occurrences if the value matches an override value within the access control element during a period that the value is stored within the machine specific register.

The invention provides a nationalized operating system verification platform. The platform comprises at least one functional module, and further comprises a platform adapter module, a running control module and a result output module, wherein the platform adapter module is used for compiling configuration information of each functional module and enabling each functional module to be adaptively connected with a nationalized operating system through the platform adapter module; the running control module is used for calling each functional module; and the result output module is used for outputting an execution result of each functional module in a formatted manner. Meanwhile, the invention provides an establishment method for the verification platform. According to the platform and the method, open-source tools are integrated, and an overall test scheme for the nationalized operating system is provided and covers tests in various aspects of function, performance, interface and the like; automated running is realized, so that the test efficiency is improved and the test cost is reduced; the execution result can provide data support for reliability verification of the operating system; and the modular design is adopted, so that test modules and cases can be freely adjusted and expanded and maintenance is facilitated.

The invention discloses a touch substrate, a preparation method thereof and a touch screen. The touch substrate comprises a substrate and a shading graph. In a touch area, a touch unit located above the substrate and a first blanking graph located above the touch unit are formed; and in a function hole area, a first insulating layer located above the substrate, a second blanking graph located above the first insulating layer and covering part of area in the function hole area and a permeability-increasing graph located above or below the second blanking graph and arranged corresponding to the second blanking graph are formed. According to the technical scheme, by setting the blanking graphs and the permeability-increasing graph in part of area in the function hole area, the area in the function hole area, which is provided with the blanking graphs and the permeability-increasing graph, has relatively high transmittance and chromaticity, the area which is not provided with the blanking graphs and the permeability-increasing graph has relatively low transmittance and chromaticity, so that at the time the overall high transmittance of the function hole area is relatively high, and the overall chromaticity is relatively low.

The invention discloses a fire extinguishing device with suspension and coverage functions. The fire extinguishing device with the suspension and coverage functions comprises a ceiling blanket hangingbox, a suspension covering blanket rail, suspension fire extinguishing blankets and fire detectors, wherein the ceiling blanket hanging box is installed on the bottom face of a floor slab, the suspension covering blanket rail erects transversely on the edge side of the ceiling blanket hanging box, and a covering blanket rail car is arranged in a groove body of the suspension covering blanket rail; a driving mechanism is arranged in a carriage of the covering blanket rail car, a blanket pulling control plate, a opening or closing hook, a swing opening hook rod, a sliding ejector rod, a parkingswitch, a starting switch and a pull rope circular ring are arranged at the bottom of the carriage of the covering blanket rail car; the suspension fire extinguishing blankets are arranged in the ceiling blanket hanging box, blanket pulling box covers are arranged at one ends of the suspension fire extinguishing blankets, blanket unfolding cross rods are arranged at the other ends of the suspension fire extinguishing blankets, and the fire detectors are arranged at the bottom of the ceiling blanket hanging box or the bottom of the suspension covering blanket rail. The ceiling blanket hangingbox of the embodiment is combined with a suspended ceiling buckling plate in the prior art, fire extinguishing can be carried out conveniently, and the top of a house can be more attractive, the covering blanket rail car covers a fire object with the suspension fire extinguishing blankets in a horizontal laying manner, so that a fire source is enabled to be extinguished in a suffocated manner, andthe situation that other objects are wetted and damaged is avoided.