Abstract: A virtual screen display apparatus includes a display arranged to generate display information and having an effective diagonal length DLC and an optical projecting element arranged to receive the display information from the display and to project and form an image, the optical projecting element having an effective F number which is defined by Fe=S1/PuD wherein S1 is a distance between the display and a principal point of the optical projecting element and PuD is a diameter of an exit pupil of the optical projecting element. A field optical element arranged to form an in-space image in a position of a virtual screen and to direct a divergent light flux from the virtual screen to a view region where the image is viewable to an observer.

Abstract: The present invention relates to a small portable information processing apparatus. A GPS unit (11, 300) is attachable to and detachable from a rear surface of a portable information terminal (10, 350), so that the GPS unit (11, 300) can be mounted on the rear surface of the portable information terminal (10, 350) to make it serviceable only when necessary, thus improving convenience. Power is supplied to the GPS unit (11, 300, 650) only when an antenna unit (112, 500, 613) is set in a serviceable state. This prevents the exhaustion of a battery.

Abstract: A tire air monitoring apparatus includes transmitters for wirelessly transmitting data regarding the inner pressure of tires and a receiver for receiving the data transmitted by the transmitters. Each transmitter is powered by a battery. Each transmitter includes a pressure sensor, which measures the inner pressure of the tire at predetermined measuring intervals. Each transmitter periodically and wirelessly transmits data every time the pressure sensor has taken a measurement a predetermined number of times. When the tire pressure changes by an amount that is equal to or greater than a predetermined upper limit value during a predetermined judging time, the transmitter performs an early data transmission. Therefore, an abnormality in the tire pressure is immediately communicated to a driver, and battery strength is conserved.

Abstract: The CPU of a personal computer displays a list of one-click icons, each representing one or a plurality of printing functions, in the icon display area, and selects one one-click icon from the list of the one-click icons displayed in the icon display area, to automatically set a plurality of printing functions corresponding to the selected one-click icons.

Abstract: A tire inflation pressure monitor includes a number of transmitters and a receiver. The transmitters transmit data concerning tire inflation pressure by radio waves, and the receiver receives the data from the transmitters. The receiver includes reception antennas and a synthesizer. The reception antennas respectively induce voltage signals based on the reception of the radio waves from the transmitters, and the synthesizer synthesizes the induced voltage signals into one voltage signal. The synthesizer selects the highest level voltage signal from the induced voltage signals and outputs the voltage signal to a reception circuit. Therefore, the synthesizer permits the reception circuit to receive the voltage signal of a given transmitter without fail.

Abstract: A transmitter of a tire inflation monitor performs wireless transmission of data concerning tire inflation pressure from an antenna coil to a receiver. The transmitter includes a signal generation circuit, which is connected to the antenna coil. The signal generation circuit generates a trigger signal for activating or inactivating a controller of the transmitter based on a particular control signal received from a predetermined external controller through the antenna coil. When the controller is activated by the trigger signal, the transmitter starts wireless transmission of the data. When the controller is deactivated by the trigger signal, the transmitter is in a sleep state. In this way, data transmission from the transmitter is easily and externally started or stopped.

Abstract: A tire inflation pressure monitor includes wheel transmitters and a receiver. The wheel transmitters transmit tire inflation pressure data by radio waves, and the receiver receives the data from the transmitters. The receiver includes reception antennas for receiving radio waves from the transmitters and a receiver unit for processing the received data. The reception antennas include external reception antennas, which are separated from the receiver unit, and at least one internal reception antenna, which is located in the receiver unit. The number of the external reception antennas is less than that of the transmitters by one. As a result, the receiver is simplified without reducing its performance. Also, a loop antenna, which is used as a reception antenna to induce voltage by the magnetic field component of radio waves, improves the efficiency of the receiver.

Abstract: The present invention relates to a small portable information processing apparatus. A GPS unit (11, 300) is attachable to and detachable from a rear surface of a portable information terminal (10, 350), so that the GPS unit (11, 300) can be mounted on the rear surface of the portable information terminal (10, 350) to make it serviceable only when necessary, thus improving convenience. Power is supplied to the GPS unit (11, 300, 650) only when an antenna unit (112, 500, 613) is set in a serviceable state. This prevents the exhaustion of a battery.

Abstract: A virtual screen display apparatus includes a display arranged to generate display information and having an effective diagonal length DLC and an optical projecting element arranged to receive the display information from the display and to project and form an image, the optical projecting element having an effective F number which is defined by Fe=S1/PuD wherein S1 is a distance between the display and a principal point of the optical projecting element and PuD is a diameter of an exit pupil of the optical projecting element. A field optical element arranged to form an in-space image in a position of a virtual screen and to direct a divergent light flux from the virtual screen to a view region where the image is viewable to an observer.

Abstract: A transmitter casing has an upper plate and a lower plate, which face each other. A rib is located to incline with respect to the lower plate between the upper plate and the lower plate. The rib prevents the tire from interfering to the casing if the tire is detached from the wheel. This enables smooth detaching of a tire from a wheel without interference with the transmitter, and to strengthen the casing of the transmitter.

Abstract: There is disclosed a new and improved intraocular lens (IOL) for use by surgeons as a replacement for a person's cataractous lens. The disclosed lens is a synthetic sapphire lens having either a silicone or polyimide haptic thereby making the lens autoclavable. The lens is resistant to damage caused by YAG laser and eliminates the need for ridges of any kind on the surface of the lens which has previously been used to keep the lens off the posterior capsule of the crystalline lens. Eliminating the need for a ridge now allows the lens to be made much thinner and also eliminates the tiddlywink effect. The new IOL is approximately 1/3 to 1/5 the thickness of standard PMMA IOLs and is totally non-degradable.

Abstract: A method of halogenating the outer and inner surfaces of a latex article such as a glove or girdle to different degrees thereby providing different slippery coefficient surfaces on the outside and the inside of the article within the need of powders, resins or exterior finishes and which results in less free chlorine atoms being released into the atmosphere.

Abstract: A latex article such as a glove or girdle having a halogenated outside surface to a first degree and a halogenated inside surface to a second degree thereby providing different slippery coefficient surfaces on the outside and the inside of the article without the need of powders, resins or exterior finishes.