Abstract: An easy-to-use remote keyless entry system is provided. To execute 2-way long distance communication at a low output and within a short time, transmission is effected while a data rate of a terminal board is changed. To reduce battery consumption in a system capable of setting an automatic output mode, the operation mode is shifted to the automatic output mode when an automatic output mode button is pushed or when a door lock release button of an operation button, etc, is kept pushed for a predetermined time. To execute a reserved operation at a reserved time, a storage circuit for storing reservation is provided to the terminal board.

Abstract: An easy-to-use remote keyless entry system is provided. To execute 2-way long distance communication at a low output and within a short time, transmission is effected while a data rate of a terminal board is changed. To reduce battery consumption in a system capable of setting an automatic output mode, the operation mode is shifted to the automatic output mode when an automatic output mode button is pushed or when a door lock release button of an operation button, etc, is kept pushed for a predetermined time. To execute a reserved operation at a reserved time, a storage circuit for storing reservation is provided to the terminal board.

Abstract: An easy-to-use remote keyless entry system is provided. To execute 2-way long distance communication at a low output and within a short time, transmission is effected while a data rate of a terminal board is changed. To reduce battery consumption in a system capable of setting an automatic output mode, the operation mode is shifted to the automatic output mode when an automatic output mode button is pushed or when a door lock release button of an operation button, etc, is kept pushed for a predetermined time. To execute a reserved operation at a reserved time, a storage circuit for storing reservation is provided to the terminal board.

Abstract: An infrared signal receiver has an infrared radiation sensor, an amplifier, a band-pass filter, an attenuator, a detector, and a waveform shaper. An output signal from the band-pass filter and an attenuated signal from the attenuator are supplied to the detector. The detector has a DC level shifter which produces a DC offset from the output signal from the band-pass filter and the attenuated signal from the attenuator, and adds the DC offset, as a detecting threshold voltage, to a voltage which turns on and off transistors of a differential amplifier of the detector.

Abstract: An illumination device for illuminating a surface with a radiation beam of arcuate cross-section is disclosed.

Abstract: An illumination optical system including a plurality of separate laser sources or a plurality of separate secondary light sources defined by the laser beams emerging from the laser sources. On an area to be illuminated, the laser beams emerging from the laser sources or emerging from the secondary light sources are superposed upon one another, whereby uniform exposure and an improved imaging performance are assured.

Abstract: A video signal processing circuit for a video printer operating to sample an analog video signal, to convert the video signal into digital data, to store the data in a memory, and to read out the contents of memory to a printer for printing. The circuit includes an oscillation circuit which generates a pixel clock in response to the horizontal sync signal in the video signal, a frequency division phase shift circuit which divides the frequency of the pixel clock provided by the oscillation circuit and shifts the frequency divided clock with the pixel clock, a selection circuit which selects one of frequency divided clocks having different phases provided by the frequency division phase shift circuit, and a selection control circuit which operates on the selection circuit to alter the clock selection at each arrival of vertical sync signal, so that the sampling of the video signal is implemented in response to the clock output of the selection control circuit.

Abstract: An optical arrangement for projection exposure includes an illuminating system adapted to supply an illumination light usable for illuminating an original, an imaging system effective to form an image of the original on a predetermined image plane, and an optical element operable so that an angle of inclination of a chief ray of the illumination light, with respect to an optical axis of the imaging system, and an angle of inclination, with respect to said optical axis, of a chief ray defined by the imaging system and lying on a light-entrance side of the imaging system, are made substantially equal to each other.

Abstract: In a video printer, a suffer memory for memorizing picture data corresponding to one line includes a memory addressed by a first address and a second address. And the video printer includes a memory write circuit having a first address generation circuit for generating a first address depending upon gradation of picture data on the basis of inputted picture data and for supplying said first address to the memory and a second address generation circuit for generating an address signal depending upon the number of printing dots of the thermal head and for supplying said address signal to the memory. The video printer also includes a memory read circuit for successively generating the second address for each of the first address and supplying the second address to the memory.

Abstract: This specification discloses an illuminating optical system in which the optical position of a multi-beam generating optical element along the direction of the optical axis is variable, whereby a desired printing wavelength selected from a wide wavelength range from the UV area to the Deep UV area can be used in the same illuminating optical system and illumination irregularity can be kept very slight.

Abstract: An illumination optical system having a light source for supplying a light beam to illuminate an object and a collimator lens system for collimating the light beam emitted from the light source, the collimator lens system being arranged such that, even if any ghost beam is produced from a lens surface of the collimator lens system, the intensity of the ghost beam per unit area on the object is suppressed to such degree that does not cause deterioration of resolution. For this purpose, in an embodiment of the invention, the lens surface of the collimator lens system is shaped in a specific manner so as to control the position at which the ghost beam is concentrated or to be concentrated.

Abstract: A projection exposure apparatus for projecting, onto a semiconductor wafer through a projection lens, an integrated circuit pattern formed on a mask or reticle. An alignment beam having a wavelength different from that for the exposure is used to achieve alignment between the mask and the wafer. A parallel flat plate is detachably disposed between the projection lens and the mask and/or the wafer to prevent a magnification error and/or a focus error of the projection lens which would otherwise be caused upon alignment due to the difference in wavelength.

Abstract: The present invention provides an illuminating apparatus for illuminating a surface to be illuminated by the use of an arcuate light source image. A point source of light is intermediately imaged in the form of an arcuate by a concave mirror. The arcuate intermediate light source image is further imaged on the surface, to be illuminated, by a plurality of concave mirrors to form an arcuate image. Convex and concave blades, which define an arcuate slit-shaped opening, are disposed in positions spaced away from each other forwardly and rearwardly of the intermediate light source image, respectively. By the use of these blades, a sharper light source image can finally be formed in the form of an arc.

Abstract: An exposure apparatus includes a reticle provided with at least one mark, and operates on a wafer provided with at least one mark. The apparatus further includes a projection optical system for optically conjugately relating the reticle to the wafer, a mark detecting apparatus for detecting the mark of the reticle and detecting the mark of the wafer through the projection optical system, an illuminator for illuminating the wafer with a sensitizing light, and a phase converting element fixed between the wafer and the reticle for varying the direction of polarization of a light coming from the mark provided on the wafer.

Abstract: A projection printing apparatus uses different lens systems during alignment and during printing. The lens system for alignment causes an alignment mark on mask to be imaged on the alignment mark on a wafer when the mask is illuminated by non-sensitizing light. The lens system for printing causes the circuit pattern of the mask to be illuminated by sensitizing light to be imaged on the wafer. The whole or part of the lens system for alignment is positioned outside of the circuit pattern image forming light path so as not to adversely affect the circuit pattern image on the wafer when the mask is illuminated by the sensitizing light.