24 results about "Electronic circuit" patented technology

The invention provides protection to wireless portable transponders from unauthorized interrogation by employing a mechanical means for disabling reception by or from the antenna of the transponder. Transponders include RFID tags that are attached to items that a persons may purchase or carry. Such transponders generally have means for receiving and storing electronic and other information, commonly in binary form using memories as in electronic circuits, etc.. The invention is designed to provide privacy of electronic information. The tags can be protected from receiving or providing unauthorized or unwanted information. The invention provides the mechanical means that permit the owner to decide when reception/interrogation of personal or other information is not desired by employing the provided mechanical disable control means.

A video code is embedded into the active video area of a stereo subfield. The video code is detected using an electronic circuit and used to maintain synchrony of the selection device with perspective images. Preferably, the video code is a predetermined sequence of colors.

A method of producing a functional vehicle component includes fixing a leather sheet over a surface of a vehicle component, applying a flexible electronic circuit to an A-surface of the leather sheet, and arranging a pigmented coating over the circuit. The pigmented coating inhibits or prevents the circuit from being visible through the pigmented coating. The method may include attaching an electronic element, such as a light source, a sensor, a wireless transmitter, or a switch, to the circuit. When the circuit includes a light source, the pigmented coating inhibits or prevents the light source from being visible through the pigmented coating, but light emitted by the light source is visible through the pigmented coating.

A timing device of a radiation detection, measurement, identification and imaging system comprises high-energy photon detectors, a light pulse generator, and an optical fiber. Each high-energy photon detector comprises a scintillation crystal and a photoelectric conversion multiplying device. The high-energy photon detectors are respectively provided with a light hole. A light pulse signal is transmitted to the scintillation crystals through the light holes and then transmitted to the surfaces of the photoelectric conversion multiplying devices through the scintillation crystals, converted and multiplied by the photoelectric conversion multiplying devices, and read and processed by an electronic circuit. The mutually-independent high-energy photon detectors acquire absolute time from the light pulse signal generated by the light pulse generator, and timing and calibration are carried out between the mutually-independent high-energy photon detectors. According to the invention, the global clock is cancelled, timing is completed based on the time when the photoelectric conversion multiplying devices receive the light pulse signal, decoupling of the high-energy photon detectors is realized, the independence of the high-energy photon detectors is ensured, and the system can use or add/subtract the high-energy photon detectors more conveniently.

An earphone is provided that can decrease a time delay between a microphone and a loudspeaker. The earphone includes a microphone incorporated with the membrane of loudspeaker. The loudspeaker and the microphone are connected by connection lines to an electronic circuit.

The board has a cold plate including a projection plate (42) between intake and evacuation holes (70, 72). Rectilinear nozzles (86-90) traverse the plate through and through by following a projection direction. Length of each nozzle along the direction is higher than/equal to width of the nozzle perpendicular to the direction for forming coolant e.g. water, jets (100-104) along the projection direction. The projection direction of each nozzle forms an angle (alpha) with respect to a direction perpendicular to a base plate (78), where the angle ranges between minus 30 to plus 30 degrees.

An electroluminescent circuit for driving an electroluminescent display having a plurality of segment electrodes and a common electrode. The circuit comprises a DC power supply, an output terminal for each of the segments and common electrodes and at least one supply half H-bridge for connecting at least one of each of the segment electrodes and the common electrode selectively to one of the DC supply and a reference voltage. Each supply half H-bridge comprises a top switch and a bottom switch in series having a junction between them. The top switch is connected to the DC supply and the bottom switch is connected to a reference voltage. A discharge circuit is provided for selectively discharging the electroluminescent display, the discharge circuit comprising a discharge half H-bridge in which a top switch is connected to the DC supply and to a discharge path.

The invention belongs to the field of energy metering, and relates to a self-healing precision correction method for a supersonic heat energy metering device. The method comprises the following main technological steps: firstly carrying out the hardware configuration of the supersonic heat energy metering device; secondly selecting a conventional TG840 main control chip and a TDC-GP22 time chip; thirdly setting a conventional zero-returning algorithmic program of static zero time difference of the supersonic heat energy metering device in the chips; fourthly setting a conventional program which obtains time difference through a peak value and a minimum value in the main control and time chips; and finally carrying out the non-linear correction of the supersonic heat energy metering device through a function of self-healing correction of the metering device. The method effectively eliminate the impact on metering precision from the factors (physical asymmetry, time drift, pipe bubbles and on-site noise) of an electronic circuit, enables the metering device to be simple in the overall structure, and enables the time measurement precision to be high.

Pests fight with people for grain, harm crops and must be killed. Chemical pest control can pollute the environment, pesticide residues are produced, and foods are contaminated. Lasers are emerging science and technology, can produce hard light and cannot produce pesticidal electricity and heat, and therefore the lasers cannot directly kill the pests. However, the hard light produced by the lasers can damage ocelli, ommatea, tentacle tips and transparent mucous membranes of the pests, and therefore ganglia of the pests are damaged. A voltage-doubling small-current rectifying circuit in an electronic technology can directly achieve contact killing of the pests, a vibrator driven by an oscillating circuit produces vibration to compel the pests to shift, and a pest control device composed by means of multiple physical principles can kill a large number of the pests and does not damage the crops. According to a multiple-killing pollution-free pest killer, a physical method is adopted to kill the pests, and three kinds of damage caused by chemical pest control do not exist; the pest killer is expected to become a substitute for chemical pest control. According to the pest killer, a large number of electronic circuits and electronic elements are adopted, and the pest killer belongs to an electronic product. The pest killer is safe, clean, portable, flexible, low in use cost and capable of being used in multiple ranges and has a wide market demand.

A composite laminate assembly for an electronic device is disclosed that provides integrated backlighting for one or more indicator shapes defined by the assembly. The assembly includes a substantially opaque cover member to shield at least a portion of the electronic device. A translucent indicator structure in the cover member defines a corresponding indicator shape to allow backlighting to pass through the cover member. An optical matrix layer of optically conductive material is attached to the inner surface of the cover member, wherein a plurality of illuminators are embedded in the optical matrix layer and laterally offset from associated indicator structures. The plurality of lighting devices may be connected to electronic circuitry carried on the inner surface of the cover member.

The invention discloses a transient simulation interpolation calculation method for a power electronic circuit. The method comprises the following steps: 1, establishing a state-space equation; 2, starting simulation; 3, updating the state of the switch group, and calculating and storing a parameter matrix; 4, performing iterative solution to obtain a dense output moment tsense and a dense outputstate variable; 5, judging whether a switching action occurs, if yes, setting fsy to be equal to 1 and going to step 7, and otherwise, going to step 6; 6, judging whether fsy is equal to 0, if yes, executing the step 11, and if not, executing the step 9; 7, calculating a switching action moment tinter and a switching action state variable; 8, judging whether the switch state has occurred, if yes,reading the existing data and going to the step 4, and otherwise, going to the step 3; 9, positioning a next simulation step length, calculating a state variable and setting fsy to be equal to 0; 10,judging whether tdens is greater than tinter, if yes, recalculating the dense output state variable, and otherwise, going to the step 11; 11, calculating an output variable; and 12, judging whether the current time is less than the total simulation duration, if yes, going to the step 4, and otherwise, ending the simulation. The method is high in calculation precision.

The invention discloses an intelligent detection system for a computer system motherboard. The intelligent detection system comprises a hardware system and a software system; the hardware system comprises an expanding translational mechanical workbench and a horizontal camera conveying belt, wherein the horizontal camera conveying belt is supported by a bracket arranged at the tail end of the translational mechanical workbench; the horizontal camera conveying belt is provided with an image acquisition system, and an illumination system which is positioned directly under the image acquisition system; and finally, the intelligent detection system also comprises a computer system, wherein the computer system is in control connection with the translational mechanical workbench, the horizontal camera conveying belt, the image acquisition system and the illumination system through electronic circuits. In the intelligent detection system disclosed by the invention, the system motherboard is transported by the translational mechanical workbench, and then information is acquired by the image acquisition system, the illumination system increases illumination and improves the accuracy of the image acquisition system, and finally, analysis and detection are carried out by the software system in the computer system to form a detection production line, so as to reduce damage caused by human operation, and increase efficiency.

An electronic circuit, including a first switching device that contains a first semiconductor material with a first band gap, and a second switching device that is coupled in parallel to the first switching device, and contains a second semiconductor material with a second band gap smaller than the first band gap. Each of the first and second switching devices has a control electrode, and the control electrode of the first switching device is coupled to the control electrode of the second switching device.

The invention provides an electronic simulated cigarette, which includes a simulated cigarette holder and a cigarette rod, a battery and an electronic circuit are arranged in the cigarette rod, and the simulated cigarette holder includes a cigarette holder cover, a liquid storage device and an atomizer, and the atomizer and the liquid storage device are fixed on In the mouthpiece cover, the atomizer includes a housing, a heating element installed in the housing, a conductive element electrically connecting the heating element to the battery, at least one liquid-conducting element surrounding the heating element, and the atomizer also includes a connection One end of the connector is isolated from the shell through the spacer and relatively fixed, and the other end is connected to the cigarette rod. The shell and the connector are respectively electrically connected to the positive and negative poles of the battery, and are respectively connected to a charger when charging. The output positive and negative poles are electrically connected to charge the battery. The present invention utilizes the atomizer to charge, and there is no need to set up a separate charging interface on the outside of the electronic imitation cigarette, the shape is closer to the real cigarette, and it is more convenient to carry and use.