摘要:
Fast low-power logic gates and method for evaluating logic signals reduce the effect of the power/speed tradeoff for parallel connected logic. A control circuit momentarily enables a high-current pullup or pulldown device after a connected input ladder switches from a conducting state to a non-conducting state. This allows a high current pullup or pulldown to be used for fast evaluation without increasing overall current drain, since the pullup action is momentary.
摘要:
A method and apparatus for implementing dynamic logic with programmable dynamic logic gates acts as a complement to programmable logic arrays (PLAs) used in high-speed microprocessor designs. A matrix of selectable cells provides powerful logic functions such as AND-OR gate capability with a minimum of inputs and transistors. By using programmable logic arrays and programmable dynamic gates, the efficiency of a logic block can be dramatically improved with little added circuit area.
摘要:
A method and apparatus for using dynamic programmable logic arrays in microprocessor control logic provide decreased power and increased clock frequencies for data processing systems, by using programmable logic arrays exclusively for the control logic. The method and apparatus further simplify the design of the control logic and closure of timing within the microprocessor, by providing overlap of control logic evaluations and data transfers within the microprocessor.
摘要:
Balanced-delay programmable logic array and a method for balancing programmable logic array delays provide improved performance in circuits employing programmable logic. By adding transistors to the programming plane that do not form part of the logic implementation, the capacitance on each of the input logic lines can be balanced, substantially reducing the skew between signals entering the final logic gates. This provides programmable logic arrays that may implement asynchronous logic in applications where skew was previously prohibitive and further increases the reliability of state evaluations in synchronous logic.
摘要:
According to a three-dimensional image capture system of the invention, it includes a three-dimensional measuring device that is placed on a top board and performs image-capturing of a patient to thereby generate three-dimensional-image data, and a three-dimensional-image processing device that generates from the three-dimensional-image data, a three-dimensional image associated with a reference coordinate system with reference to the top board or a floor of a room, and that displays the three-dimensional image. The three-dimensional-image processing device includes a position-information extraction unit that takes a correlation between the reference coordinate system and three-dimensional position information of the patient in the three-dimensional-image data to thereby generate reference-coordinate-system position information of the patient based on the reference coordinate system, and a display unit that displays the three-dimensional image, wherein the display unit displays a reference image and an observed image that are the three-dimensional images captured at different timings.
摘要:
To detect humidity, used are a first series connection circuit connecting a thermistor and a fixed resistor via a node, a second series connection circuit connecting a resistance change type humidity sensor and the thermistor via the node, and a third series connection circuit connecting the humidity sensor and the fixed resistor via the node. A predetermined voltage is applied across the first circuit to detect a first voltage indicating temperature through the node, and secondly across the second circuit to detect a second voltage indicating a first humidity through the node, and finally across the third circuit to detect a third voltage indicating a second humidity through the node. Then, the first voltage is compared with a reference voltage and judgment is made, based on a comparison result, to determine which of the second voltage and the third voltage is relevant to use as a basis for outputting the humidity as detected.
摘要:
Provided is a sensor having a high sensitivity and a high degree of freedom of layout by reducing constrictions of the channel shape, the reaction field area, and the position. Provided is also a method for manufacturing the sensor. The sensor (10) includes: a source electrode (15), a drain electrode, (14), and a gate electrode (13) arranged on silicon oxide film (12a, 12b); a channel (16) arranged on the silicon oxide films (12a, 12b) and electrically connected to the source electrode (15) and the drain electrode (14); and a reaction field (20) arranged on the silicon oxide films (12a, 12b). The reaction field (20) is formed at a position on the silicon oxide film (12a), the position being different from a position for the channel (16). With this configuration, it is possible to independently select the shape of the channel (16) and the area of the reaction field (20). This enables the sensor (10) to have a high measurement sensitivity and a high degree of freedom of layout.
摘要:
A DC-DC converter control circuit includes: a slope signal generation circuit that generates a reference voltage by superimposing a slope voltage onto a standard voltage; a comparator that performs comparison of the reference voltage with an output voltage and generates a signal according to a result of the comparison; an oscillator that generates a pulse signal with a substantially constant cycle; and a control signal generation circuit that generates a control signal that turns on a switch based on a comparator output signal and turns off the switch based on the pulse signal.
摘要:
A rolling bearing apparatus capable of restraining the residence of air bubbles in the water-cooling jacket while curbing the running cost and the production cost is provided.A rolling bearing apparatus having a rolling bearing, and a housing which houses the rolling and in which a water-cooling jacket into which cooling water is introduced is formed. The water-cooling jacket is formed of: a recess portion that is indented radially inward from an outer peripheral surface of the housing and that has a bottom portion that extends along an outer periphery of the rolling bearing; and lid that, together with the recess portion, forms space into which the cooling water is introduced, by closing the recess portion. The bottom portion is formed of: a first inclined surface; and a second inclined surface.
摘要:
To provide a safety device of a battery temperature control system for an EV or an HEV capable of preventing an electric shock due to the electrical conduction across terminals of batteries in the event of a vehicle collision.A safety device used in a temperature control system of a battery for a vehicle, including a first heat exchange unit (1) which includes a first heat exchange section (2) filled with a liquid-state heat medium into a pipe (3) and exchanging heat with a battery (B) by the heat medium, and a second heat exchange unit (20) which includes a second heat exchange section (21) heating or cooling the heat medium subjected to heat exchange in the first heat exchange section (2), wherein the heat medium existing in the first heat exchange section is discharged to the outside of the first heat exchange section, for example, under a predetermined condition such as a vehicle collision.