46results about How to "Avoid traces" patented technology

A tag device causes a second calculator to read a confidential value from a confidential value memory and to apply a second function F2 which disturbs a relationship between elements of a definition domain and a mapping thereof to generate tag output information. The tag device delivers the tag output information to a backend apparatus. Subsequently, a first calculator reads out at least part of elements of the confidential value from the confidential value memory, and applies a first function F1, an inverse image of which is difficult to obtain, and a result of such calculation is used to update a confidential value in the confidential value memory by overwriting.

A method controls a robotic mower (2) to a predetermined position by means of a guide wire (8). The robotic mower comprises a control unit (22) and at least one sensor (12; 14; 16; 17; 19). At least one of the sensors detects a signal from guide wire and follows the guide wire at a first distance that is randomly determined. The robotic mower follows the guide wire until detecting, by means of atleast one sensor, a signal from a boundary wire (4) and then following the boundary wire at a second distance, which is randomly determined. When detecting that the signal strength from the guide wirefalls outside a first predetermined threshold, the robotic mower starts following the guide wire again. And a robotic mower is controlled by the method described above.

The invention discloses a novel high-efficiency heat dissipation injection mold, and belongs to the field of injection molding. The novel high-efficiency heat dissipation injection mold comprises an upper mold and a lower mold which match each other, the ends, close to each other, of the upper mold and the lower mold form a mold cavity, and an injection molding port is dug in the middle of the upper end of the upper mold. Through arrangement of an outer guide expansion mechanism and a heat collection outer guide mechanism, in one aspect, during injection molding, heat in melt may be transferred to the outside along the outer guide expansion mechanism, an embedded layer is heated to expand, meanwhile, an epitaxial heat conduction needle is extended out of the upper mold, so that a contact area with the outside can be effectively increased, and outer heat dissipation can be significantly accelerated; and on the other hand, the heat of the melt is collected to the heat collection outer guide mechanism along a heat conduction rod, heat is dissipated to the outside through a condensation channel, so that dissipation of the heat carried in the melt can be effectively accelerated, coolingtime of the melt can be significantly shortened through double heat dissipation, cooling and shaping of a finished product is further accelerated, and then the working efficiency of a whole injectionmolding process can be effectively improved.

Provided are an OLED screen and a manufacturing method thereof. The OLED screen has a display area and a peripheral area located on a left side and a right side of the display area. The OLED screen comprises: a back plate, a polyimide layer, an array layer, an OLED layer, a thin film encapsulation layer, a polarizer and a cover plate stacked in order; a mirror layer is disposed between the thin film encapsulation layer and the polarizer, and at least a portion of the mirror layer in the peripheral area is not covered with the polarizer; a portion of the cover plate in the peripheral area is not covered with ink. When the organic light emitting diode screen is lit, the light emitted by the organic light emitting diode layer can be transmitted out of the peripheral area to achieve a frameless display effect.

Method for connecting a host computer device to a wireless communication network, the host computer device being provided with an operating system with at least one pre-installed generic driver providing a generic communication protocol (7) for communication between the host computer device and a standard class of computer peripheral devices other than wireless modem devices, the method comprising the steps of: (a) connecting a wireless modem device to the host computer device; (b) setting up, by means of a pre-installed generic driver of the operating system on the computer device, a modem / host communication interface (6) for communication between the wireless modem device and the computer device; (c) connecting the host computer device to a wireless communication network via the wireless modem device; (d) routing data traffic (8-9) between the host computer device and the wireless communication network over the modem / host communication interface (6). The generic communication protocol (7) is used in the modem / host communication interface (6) for transferring the data traffic (8-9) between the host computer device and the wireless modem device.

The invention discloses vibration cutter leather cutting equipment with a pressing foot incapable of damaging leathers. The equipment comprises a breathable absorbing felt, a movable cutter frame beam, a movable cutter base, the leather leveling and cutting assisting pressing foot, a cutting platform, a maintenance door and a base table; the breathable absorbing felt is fixedly embedded above thecutting platform to maintain on the same horizontal plane with the surface; compared with the prior art, the edges of leathers are pressed down through a leather pressing ring plate; through a slope surface, pressing the bottom, of a slow slope, an anti-friction universal rotating device reduces the friction and presses the leathers into a leather contact bottom surface to level the leathers to prevent arching; when a vibration cutter moves, an anti-friction roller is suffered from direction change force, so that a roller fixing column drives a horizontal rotating roller to rotate on the innerwall of a device outer shell to change the roller rolling direction; and all rollers on the leather contact bottom surface are in the same direction, so that the friction force can be reduced duringmoving, and the leather leveling and cutting assisting pressing foot is prevented from leaving obvious marks or damage on the surfaces of the leathers to cause the quality reduction of the leathers.

A method of manufacturing an antivibration device for motor vehicles, the device comprising at least one metal insert having at least one fixing surface bonded to an elastomer, the method including a cleaning step during which the fixing surface is scanned with a laser beam that is sufficiently powerful to eliminate the impurities present on said surface.

A method for avoiding a Bluetooth device from being traced, which comprises the following steps: parsing, by a target Bluetooth device, a second dynamic address to obtain a second random number and a second data; and generating, by the target Bluetooth device, a plurality of the third data successively according to the identity parsed keys in the identity parsed keys list save by the target Bluetooth device and a second random number, and determining whether there exists any third data which is the same as the second data, if yes, determining that there exists the second identity parsed key which is authenticated successfully; otherwise, determining that there isn't the second identity parsed key which is authenticated successfully.