摘要:
A constant discharge device for a pneumatic conveyor for powdery or granular materials includes a discharge regulator valve disposed in a pressure tank that stores the powdery or granular material and movable toward or away from a discharge nozzle which has an open end through which the material is discharged out of the pressure tank into a conveyor pipe. The discharge regulator valve has an air outlet for ejecting a stream of air toward the discharge nozzle. The amount of the material as discharged into the conveyor pipe can be controlled by adjusting the position of the discharge regulator valve with respect to the discharge nozzle, and also by adjusting the rate of flow of air through the outlet of the discharge regulator valve.
摘要:
A gate electrode of each MISFET is formed on a substrate in an active region whose periphery is defined by an element isolation trench, and crosses the active region so as to extend from one end thereof to the other end thereof. The gate electrode has a gate length in a boundary region defined between the active region and the element isolation trench which is greater than a gate length in a central portion of the active region. The gate electrode is configured in an H-type flat pattern. Further, the gate electrode covers the whole of one side extending along a gate-length direction, of the boundary region defined between the active region L and the element isolation trench, and parts of two sides thereof extending along a gate-width direction. The MISFETs are formed in electrically separated wells and are connected in series to constitute part of a reference voltage generating circuit.
摘要:
A semiconductor memory device includes an input circuit and an output circuit. To prevent the erroneous operation of the input circuit by the noise which develops at the time of the change of the output signal of the output circuit, the threshold voltage of the input circuit is changed, or an internal signal generated by the internal circuit is fixed to a predetermined level. In an output circuit having a tri-state output function, the threshold voltage of the input circuit is changed when the output is brought into the high impedance state, or the internal signal generated by the input circuit is fixed to a predetermined state. Using these arrangements it is possible to prevent the erroneous operation of the input circuit by the noise occurring when the output is brought into the high impedance state. Furthermore, in an output circuit having a tri-state output function, the threshold voltage of the input circuit is changed when the output signal of the output circuit is brought into the high impedance state, too, when the output signal changes. This makes it possible to prevent an erroneous detection of the level of the input signal which might otherwise be caused by the noise.
摘要:
A modular jack (31) comprises a housing (32) and a foolproof mechanism (34) including a pair of spring members (42) cantilevered to the housing (32), and an abutment section (43) provided at the front end of each spring member (42). Each abutment section (43) consists of a cam portion (45) having an inclined face (47) and a stopper portion (44) provided behind and inside the cam portion (45). When a modular plug (2) having a predetermined number of poles is inserted into the modular jack (31), the front ends of the modular plug (2) abut the inclined faces (47) of the cam portions (45) to move the abutment sections (43) outwardly, permitting insertion of the modular plug (2). When a modular plug (2′) having a number of poles that is smaller than the predetermined number is inserted, the front ends of the modular plug (2′) abut against the stopper portions (44) to block insertion of the modular plug (2′).
摘要:
A gate electrode of each MISFET is formed on a substrate in an active region whose periphery is defined by an element isolation trench, and crosses the active region so as to extend from one end thereof to the other end thereof. The gate electrode has a gate length in a boundary region defined between the active region and the element isolation trench which is greater than a gate length in a central portion of the active region. The gate electrode is configured in an H-type flat pattern. Further, the gate electrode covers the whole of one side extending along a gate-length direction, of the boundary region defined between the active region L and the element isolation trench, and parts of two sides thereof extending along a gate-width direction. The MISFETs are formed in electrically separated wells and are connected in series to constitute part of a reference voltage generating circuit.