Abstract:
A dual light source voltage-modulated reciprocal control circuit for a scanner. The circuit includes a voltage modulation circuit, a first lamp driving circuit, a second lamp driving circuit and a reciprocal control circuit. The voltage-modulating circuit generates a modulated voltage whose magnitude can be adjusted through pulse width modulation of a square wave. The first lamp driving circuit receives the modulated voltage to drive a first lamp. Similarly, the second lamp driving circuit receives the modulated voltage to drive a second lamp. The reciprocal control circuit redirects the modulated voltage to the first lamp driving circuit or the second lamp driving circuit according to the dictate of a reciprocal logic signal.
Abstract:
A cipher method and system for multicast service. A group includes multiple user equipment, each having a respective key. The keys are orthogonal to one another. A content provider provides a raw message to the user equipment of the group. A BM-SC server has a key set composed of the respective keys of all user equipment of the group to encipher the raw message to thus obtain an enciphered message for broadcast. All user equipment of the group receives and deciphers the enciphered message with the respective keys. When a user equipment leaves the group, the key set held by BM-SC is updated by removing the key of the leaving user equipment.
Abstract:
A receptacle connector includes a body and a cover assembled outside the body. The body defines a receiving space and a pair of beams. The end of each beam stretches backward to form a guiding projection. The bottom of the guiding projection is a cambered surface. The cover is bent downward from the front portion to form a pair of elastic arms. The bottom portion of the elastic arm is bent forward to form a finger portion. While a plug connector is inserted into the receiving space of the receptacle connector, the elastic arms press against the pressing portion of the plug connector. When the plug connector is dragged accidentally, the elastic portion of the plug connector slides downward along the finger portion to the cambered surface of the guiding projections, and then slides out of the receiving space to set the plug and receptacle connector apart.
Abstract:
A method and system is disclosed for concentrating high energy particles on a predetermined area on a target semiconductor substrate. A high energy source for generating a predetermined amount of high energy particles, and an electro-magnetic radiation source for generating low energy beams are used together. The system also uses a mask set having at least one mask with at least one alignment area and at least one mask target area thereon, the mask target area passing more high energy particles then any other area of the mask. At least one protection shield is incorporated in the system for protecting the alignment area from being exposed to the high energy particles, wherein the mask is aligned with the predetermined target semiconductor substrate by passing the low energy beams through the alignment area, wherein the high energy particles generated by the high energy source pass through the mask target area to land on the predetermined area on the target semiconductor substrate.
Abstract:
An improved magnetoresistive memory device has a reduced distance between the magnetic memory element and a conductive memory line used for writing to the magnetic memory element. The reduced distance is facilitated by forming the improved magnetoresistive memory device according to a method that includes forming a mask over the magnetoresistive memory element and forming an insulating layer over the mask layer, then removing portions of the insulating layer using a planarization process. A conductive via can then be formed in the mask layer, for example using a damascene process. The conductive memory line can then be formed over the mask layer and conductive via.
Abstract:
An update method for firmware in an electronic device. A function of firmware update determination is verified for an electronic device. If the electronic device provides the firmware update determination function, an update program is sent thereto. The electronic device receives the update program for the firmware and determines if the firmware requires updating according to the update program. The electronic device updates the firmware using the update program if the firmware is determined to require updating.
Abstract:
A membrane for vacuum suction of a silicon water typically used inside a polishing head. The membrane has a flat main body and a plurality of protrusions each having a spiny shape over the surface of the flat main body. The protrusions are formed in positions that correspond to the holes of a supporting multiple-hole panel. The protrusions on the flat main body lower the suction pressure between the wafer and the membrane somewhat so that wafer unloading failure is minimized.
Abstract:
A burner with a stable mechanism stretching out from a proper location on the circumference, a stable slot is between two shaft slices with a connecting part, the piezo-electric device is a modulized body a piezo-electric module is inside the modulized body, one end of the piezo-electric module stretches out from the shell and is against the shaft, the other end connects to a press button, a conducting rod connects out from the piezo-electric module, and is apart from the burner cap, a combining object is on the location corresponding to the shaft slices; the modulized body can be combined with or detached from the stable slot by the combination or detachment of the combining object and the shaft slices. Users can press the press button and trigger the sparks between the conducting rod of the piezo-electric module and the burner cap to ignite fuel.
Abstract:
This invention relates to a drill having hole-drilling alignment precision, and drilling capability, and scrap-release capability. It comprises a drill tip on the cutting part and a drill body with at least two radially reverse screw slots, the drill body comprises an extended clamp part; the drill tip having two more pointed and symmetrical surfaces of pointed, conical, cylindrical shape on the front surface and wedge shape cone on the side surface, the central drilling point on the drill tip of the two symmetrical surfaces forms a point, one side of the symmetrical surface is a cone surface; another side is a scrape surface having an outer side of the front end larger than the drill body, the blade end is installed at the outer side of the scrape surface; a scrap-release slope installed in between the scrape surface and the drill tip to enhance the above mentioned capabilities.
Abstract:
A DC/DC converter. In the DC/DC converter, a DC/DC conversion circuit provides an output voltage to a storage capacitor upon receiving an enable signal. First and second resistors are connected in series to produce a first voltage according to the output voltage. A Schmitt trigger is coupled to the first voltage to output a first control signal through an inverter when the first voltage is smaller than a second voltage and to output a second control signal through the inverter when the first voltage is higher than a third voltage. An oscillator is turned off upon receiving the first control signal such that the DC/DC conversion circuit stops providing the output voltage, and is turned on and outputs the enable signal upon receiving the second control signal such that the DC/DC conversion circuit provides the output voltage to the storage capacitor.