Abstract: A voltage regulator includes a first multi-gate transistor, a differential stage, a second stage having a second multi-gate transistor, and a pass transistor to apply an output voltage and output current to a device load. Based on a feedback voltage associated with the output voltage, the differential stage modulates a bias voltage applied to a control electrode of the pass transistor. A first gate of the second multi-gate transistor generates a nominal bias current for the pass transistor, and the second gate adjusts the bias voltage based on an output of the differential stage so that transients in the regulator output voltage resulting from sudden changes in current drawn by the device load are reduced.

Abstract: A linear voltage regulator includes a first transistor, a feedback circuit, and a control circuit. The first transistor includes a first terminal coupled to an input terminal of the regulator, a second terminal coupled to an output terminal of the regulator, and a control terminal. The first transistor is configured to provide a load current to the output terminal at a desired voltage level based on a control signal on the control terminal. The feedback circuit is coupled to the output terminal and is configured to generate a feedback signal based on an actual voltage level at the output terminal. The control circuit is configured to provide, based on the feedback signal, the control signal at a level to substantially maintain an output voltage at the output terminal at the desired voltage level. An operating current of the control circuit is configured to increase, by a limited amount, responsive to a transient increase in the load current.

Abstract: A voltage regulator includes a first multi-gate transistor, a differential stage, a second stage having a second multi-gate transistor, and a pass transistor to apply an output voltage and output current to a device load. Based on a feedback voltage associated with the output voltage, the differential stage modulates a bias voltage applied to a control electrode of the pass transistor. A first gate of the second multi-gate transistor generates a nominal bias current for the pass transistor, and the second gate adjusts the bias voltage based on an output of the differential stage so that transients in the regulator output voltage resulting from sudden changes in current drawn by the device load are reduced.

Abstract: A linear voltage regulator includes a first transistor, a feedback circuit, and a control circuit. The first transistor includes a first terminal coupled to an input terminal of the regulator, a second terminal coupled to an output terminal of the regulator, and a control terminal. The first transistor is configured to provide a load current to the output terminal at a desired voltage level based on a control signal on the control terminal. The feedback circuit is coupled to the output terminal and is configured to generate a feedback signal based on an actual voltage level at the output terminal. The control circuit is configured to provide, based on the feedback signal, the control signal at a level to substantially maintain an output voltage at the output terminal at the desired voltage level. An operating current of the control circuit is configured to increase, by a limited amount, responsive to a transient increase in the load current.

Abstract: A projector having an image display element for modulating light on the basis of an image signal and a projection lens for projecting light emitted from the image display element on a screen, includes: a lamp which has a light emitting source for emitting light; a reflector which reflects light emitted from the light emitting source; a cover glass which covers an emission surface of light from the reflector; a cooling fan disposed outside the reflector; and an air direction changing unit which changes a direction of cooling air caused by the cooling fan. The air direction changing unit is disposed within a space surrounded by the reflector and the cover glass, and outside an emitted light path of light reflected by the reflector. Cooling air within the space is exhausted outside the projector through the cooling fan.

Abstract: A multiprocessor system includes a plurality of processors, a shared memory shared by the plurality of processors and a contention determiner which manages access to the shared memory by each of the plurality of processors. The processors communicate with each other, exchange information regarding completion of an updating process for updating data in the shared memory and information regarding the failure of the updating process. In the case where the updating process is completed by any other one of the processors, each of the processor reads out the updated data. On the contrary, in the case where any other one of the processors fails in executing the updating process, each of the processors executes the updating process for updating data which has not successfully been updated. Having performed the above, each of the processors can access the shared memory in cooperation with each other.

Abstract: A simple cooling construction capable of achieving two functions at a time is to be provided, one function being cooling a lamp as a lighting means and the other function being preventing the scatter of broken pieces of the lamp upon burst of the lamp. An image display device such as an LCD projector has been configured such that cooling air is introduced into the interior of a reflector to cool an lamp means. In this connection, the present invention adopts a net of an expanded metal structure which serves as both means for preventing the scatter of broken pieces of a lamp upon burst of the lamp and an air deflecting plate facing a portion to be cooled. The above two functions can be attained simultaneously by such a simple construction.

Abstract: A projector having an image display element for modulating light on the basis of an image signal and a projection lens for projecting light emitted from the image display element on a screen, includes: a lamp which has a light emitting source for emitting light; a reflector which reflects light emitted from the light emitting source; a cover glass which covers an emission surface of light from the reflector; a cooling fan disposed outside the reflector; and an air direction changing unit which changes a direction of cooling air caused by the cooling fan. The air direction changing unit is disposed within a space surrounded by the reflector and the cover glass, and outside an emitted light path of light reflected by the reflector. Cooling air within the space is exhausted outside the projector through the cooling fan.

Abstract: The present invention provides a mobile information terminal apparatus, wherein a power supply terminal formed from a wire having elasticity, in which an electrode contact section is provided between two twisted coil springs, is brought into contact with an electrode of a battery so that feeding is carried out. This realizes a terminal, which does not easily reach the yield point against the degree of deformation caused by an impact with use of its characteristics provided from the wire material, in which the degree of a change in spring force is small against movement of the battery, and which has an excellent following-up property. Accordingly, the mobile information terminal apparatus according to the invention prevents interruption of feeding, or contact failure, etc. caused by an external impact, etc. from occurring therein.

Abstract: A simple cooling construction capable of achieving two functions at a time is to be provided, one function being cooling a lamp as a lighting means and the other function being preventing the scatter of broken pieces of the lamp upon burst of the lamp. An image display device such as an LCD projector has been configured such that cooling air is introduced into the interior of a reflector to cool an lamp means. In this connection, the present invention adopts a net of an expanded metal structure which serves as both means for preventing the scatter of broken pieces of a lamp upon burst of the lamp and an air deflecting plate facing a portion to be cooled. The above two functions can be attained simultaneously by such a simple construction.

Abstract: The present invention relates to a portable information terminal apparatus including a stopper mechanism for operating in such a manner that, in a state in which a detachable built-in electronic device such as a memory card is inserted and attached to a connector arranged in the apparatus, when an external impact is applied, the memory card is prevented from being detached from the connector on the rear side of the memory card or, even when the card is detached, the detachment is restricted within a detachment allowable range where electrical connection is not influenced.

Abstract: A card connector is provided which includes a stopper mechanism for functioning in such a manner that in a case where a memory card is inserted and attached to a connector, the memory card is prevented from being detached from the connector, or even when the card is detached, the detachment is restricted within a detachment allowable range where electrical connection is not influenced. The card connector is carried in a portable information terminal apparatus to prevent connector detachment caused due to an external impact.

Abstract: The present invention provides a mobile information terminal apparatus, wherein a power supply terminal formed from a wire having elasticity, in which an electrode contact section is provided between two twisted coil springs, is brought into contact with an electrode of a battery so that feeding is carried out. This realizes a terminal, which does not easily reach the yield point against the degree of deformation caused by an impact with use of its characteristics provided from the wire material, in which the degree of a change in spring force is small against movement of the battery, and which has an excellent following-up property. Accordingly, the mobile information terminal apparatus according to the invention prevents interruption of feeding, or contact failure, etc. caused by an external impact, etc. from occurring therein.

Abstract: A multiprocessor system includes a plurality of processors, a shared memory shared by the plurality of processors and a contention determiner which manages access to the shared memory by each of the plurality of processors. The processors communicate with each other, exchange information regarding completion of an updating process for updating data in the shared memory and information regarding the failure of the updating process. In the case where the updating process is completed by any other one of the processors, each of the processor reads out the updated data. On the contrary, in the case where any other one of the processors fails in executing the updating process, each of the processors executes the updating process for updating data which has not successfully been updated. Having performed the above, each of the processors can access the shared memory in cooperation with each other.

Abstract: The present invention relates to a card connector including a stopper mechanism for functioning in such a manner that in a case where a memory card is inserted and attached to a connector, the memory card is prevented from being detached from the connector, or even when the card is detached, the detachment is restricted within a detachment allowable range where electrical connection is not influenced. The card connector is carried in a portable information terminal apparatus to prevent connector detachment caused due to an external impact.

Abstract: The present invention relates to a portable information terminal apparatus including a stopper mechanism for operating in such a manner that, in a state in which a detachable built-in electronic device such as a memory card is inserted and attached to a connector arranged in the apparatus, when an external impact is applied, the memory card is prevented from being detached from the connector on the rear side of the memory card or, even when the card is detached, the detachment is restricted within a detachment allowable range where electrical connection is not influenced.

Abstract: Liquid crystal display 1 has a surface disposed in parallel with a surface of holographic concave mirror 2. Liquid crystal display 1 causes a revolution about a display center "d" of holographic concave mirror 2 in a back-and-forth direction as indicated by arrow .alpha.. In response to such revolution around holographic concave mirror 2, liquid crystal display 1 causes an autorotation about its vertical center "e" in the back-and-forth direction as indicated by arrow .beta..

Abstract: All components and parts of a head-up displaying device are formed in a unit and secured to a dashboard or a rear panel of a vehicle. The displaying device has a case composed of a base member, a bottom plate and a cover. The base member is secured to the dashboard or the rear panel and forms a turntable with the bottom plate. An image projection unit, a control unit and a reflecting member are housed in the case, and a foldable flat combiner is pivotally secured to the cover of the case. A shade member is formed on the cover to prevent the image projection unit from coming into the driver's line of sight. The combiner is held by a holder which forms a hinge using clips secured to the case and shafts formed on the sides of the holder so that the inclination angle of the combiner may be adjusted.

Abstract: A liquid crystal displaying device uses an inexpensive incandescent lamp or xenon lamp without sacrificing luminous intensity of a reflector, while maintaining an ease of installation. In the displaying device, a liquid crystal displaying panel, an incandescent lamp, a reflector, a lens and a heat-ray absorbing filter have a common optical axis and are secured to a bracket. The lamp is held by a socket and installed on the bracket transversely to the optical axis of the reflecting surface of the reflector. Further, the liquid crystal displaying panel has polarizing plates on both sides thereof. A coating to diffuse light from the lamp is disposed on one of the polarizing plates on the light incident side of the displaying panel. The polarizing direction of the polarizing plate on the other side of the displaying panel is selected so that the polarizing direction of the incident light waves on a reflective layer which is disposed on the front windshield glass provides a transversal or horizontal wave.

Abstract: A connector connecting two circuit boards of different types comprises an insulative male housing which houses conductive plug contacts therein, a circuit board having conductive receptacle contacts engaged with the housing and making electrical connection with the plug contacts, and a flexible conductor engaged with the housing and making electrical connection with the plug contacts.