Abstract: A projected image displaying apparatus for displaying bright color images on a display screen. Images in the form of three energy beams are projected onto a light emitting coating composed of repeating sequences of first through third phosphor stripes, each corresponding to one of the primary colors. The light emitting coating is formed over a transmissive diffusion surface. A lenticular lens may be employed to direct the color image to the eyes of the viewer.

Abstract: An electrophotographic printer which is equipped with a photoreceptor, a charge device, an optical head, a developing device and a transfer device. The optical head has an array of electroluminescent devices arranged along one edge of a substrate and an array of light waveguide strips for transmitting the light from each of the electroluminescent devices to the other edge of the substrate which is to be brought into a face-to-face relationship with the photoreceptor.

Abstract: A vehicle height control device that includes a pressure sensor 28 for detecting the pressure of compressed air supplied to pneumatic shock absorbers 10 for pneumatically bearing the load of a vehicle loads applied through the wheels. A control circuit 30 is included for controlling vehicle height based on the pressure detected by the pressure sensor 28. A waveform shaping circuit is connected between the control circuit 30 and the pressure sensor 28 and shapes the waveform to moderate the pressure change while the pressure is rising to a greater degree than while the pressure is dropping. The waveform shaping circuit includes a passive low-pass filter circuit 38, an active low-pass filter circuit 52 and a pair of diodes 70 and 72. The diodes 70 and 72 connected to the active filter circuit 52, allowing rapid capacitor discharge during decreases in signal amplitude while maintaining a slow discharge rate during decreases in signal amplitude.

Abstract: A projection television receiver using a reflector between a projection tube and a screen. The reflector is attached to a rear cover of the cabinet which is rotatable between a retracted and projected position. In the retracted position, the receiver is compact and easily shipped while the projected position is required during operation.

Abstract: A contact supervising circuit for a rider protective device, in which an ignition switch, a collision sensor, and a detonator are connected in series to a DC power source, a monitoring resistor is connected in parallel to the collision sensor, and a monitoring switch is connected in series to the monitoring resistor. The device comprises delay means for closing a contact of the monitoring switch with a period of delay to interrupt a monitoring current flowing from the DC power source through the monitoring resistor for a predetermined period of time after turning-on of the ignition switch. The device further comprises assertion means for supervising the monitoring current and for asserting the fact that the monitoring current does not flow during the period of delay in which the closing the contact of the monitoring switch is delayed by the delay means.

Abstract: A thin line printer head in which the leaf springs each extend horizontally in a line between a fixed and free end. The leaf springs may be formed in a flat spring plate by removing portions and adjacent springs may extend oppositely from a central portion of the plate.

Abstract: In a stereoscopic television display device, the timing of read out data of a frame memory for right eye and the timing of read out data of a frame memory for left eye are shifted with respect to each other other so that the observer can freely select a point other than a camera's observation point as his observation point. Furthermore, according to another aspect of the invention, a stereoscopic television image pickup device is provided in which an electrically controllable aperture and an optical transmission plate having an electrically controllable transmittance are disposed between an object and image pickup units for right eye bad left eye, and in each image pickup unit the aperture and the transmittance are controlled so that the video signal level and the degree of opening of the aperture are set to desired values.

Abstract: A triggering device and a method of operation which may be used in a vehicle-mounted gas bag protection device, in which a bag fills with gas upon impact of the vehicle. During normal conditions, a small current passes through a detonator associated with the gas generator. This current is supplied by an auxiliary power supply, including a capacitor, which is charged through a diode from a main vehicle battery. When impact occurs, an increased current flows through the detonator to cause gas to be generated. To detect malfunctions, a voltage associated with the detonator is monitored and then alarm is generated when the monitor voltage exceeds a predetermined range. To prevent the generation of false malfunction alarms, the predetermined range is determined with respect to the voltage produced by the auxiliary power supply and not the main battery of the vehicle so that fluctuations in the voltage associated with the main battery of the vehicle do not produce false alarms.

Abstract: A stereoscopic television signal processing method including a transmitting unit and a receiving unit where the method includes the steps of generating right and left eye picture signals respectively from a pair of image pick up devices disposed at the right and left sides of an object, each picture signal including four fields constituting a first odd-numbered field, a first even-numbered field, a second odd-numbered field, and a second even-numbered field occurring in the foregoing order where each field includes a plurality of horizontal scanning lines; sampling the right and left eye picture signals at predetermined time intervals so that the samples of the right and left eye picture signals are alternated on the horizontal lines of the four fields of each picture in such a manner that the sampling order is reversed (a) between successive horizontal scanning lines for each field, (b) between the first and second odd-numbered fields and (c) between the first and second even-numbered fields; transmitting th

Abstract: A sheet feeding device in an impact-type printer, in which a leaf spring member is provided below a platen which is in confronting relationship with printing heads. The pressure rollers are rotatably mounted on the leaf spring member while a cam surface is defined on one of the guide shafts which mounts the printing mechanism for reciprocal movements along the platen. The leaf spring member at one end engages the cam surface so that it is flexibly displaced with respect to the platen in response to rotation of the guide shaft so as to move the pressure rollers towards or away from the platen.

Abstract: A dot line printer in which, as its head carriage is driven, a plurality of printing heads arranged on the head carriage at equal intervals are moved in a direction perpendicular to the sheet feeding direction, to print on a printing sheet set on the platen. The dot line printer has a linear scale secured to the head carriage, and a linear sensor provided on a head carriage supporting frame, and a sensor for detecting the displacement of the linear scale to produce a detection signal which is processed to obtain the present position of the head carriage and the correct printing timing of the printing heads.

Abstract: A horizontal printing type printer including a head feeding motor serving as a shaft feeding motor; a feeding shaft coupled to the motor so that it is rotatable in both directions, the shaft being arranged in a vertical direction perpendicular to the printing line direction; two sheet feeding tractors mounted on the shaft, two one-way clutches provided on the tractors, respectively, the one-way clutches being engaged with the shaft to rotate together with the latter in the sheet feeding direction to feed the printing sheet; and a printing head movably supported on the shaft and a guide rod parallel with the latter, the printing head being moved backwards and forwards in the vertical direction of rotation of the shaft.

Abstract: The present invention includes a main control system driving an exciting coil of a component to be driven. The invention also includes a sub-control system that backs up the main control system when the main control system fails. The sub-control system and the main control system both have a self-diagnostic capability and the sub-control system is diagnosed for failure prior to the main control system, so that the availability of the back up system is determined before the main control system is activated.

Abstract: A high intensity discharge (HID) lamp has an arc tube including a pair of main electrodes and at least one auxiliary electrode or probe, wherein a high frequency (HF) high voltage is applied to the probe for forming a high frequency (HF) ignition discharge for establishing a low frequency (LF) arc discharge between the main electrodes. In this ignition system, the electrodes of the arc tube are arranged so that an LF discharge path and an HF discharge path are positioned in an X- or a Y-configuration in the arc tube for causing easy lamp ignition. Also, to simplify the outer leads, it is desirable to mount the probe on one of the main electrodes by a dielectric member opposite another main electrode thereby to form a shorter gap between the probe and the other main electrodes than that between the main electrodes. The starting device of HID lamps has a high frequency-high voltage (HF-HV) generator, the output of which is applied, directly or indirectly, to the probe.

Abstract: In a discharge lamp lighting system comprising a DC or low frequency (LF) AC main source and a high frequency (HF) source, a high frequency component from the HF source and low frequency component from the main source are supplied in an overlapping manner to the discharge lamp. The HF source of the lighting device is energized by input current from the main source for producing a high frequency current. In addition, the lighting device for the discharge lamp include in combination an HF blocking circuit, an HF passing circuit and/or a matching circuit for the HF source to supply effectively a high frequency component to the discharge lamp, as well as a low frequency component from the main source.