Abstract: Light emitted from a white light source is separated into red, green and blue light beams by dichroic mirrors. The resulting light beams are directed onto a lenticular lens system having large-pitch lenticular lenses and small-pitch lenticular lenses formed on opposed surfaces. This lens system converts the red, green and blue light beams incident on each of the large-pitch lenticular lenses into a color band set consisting of a set of separated subbands of the red, green and blue light beams the diameter of which is narrowed down to one-third or less of that of the incident light beam through the small-pitch lenticular lenses. The resulting color band sets emerging from the small-pitch lenticular lenses are focused onto a DMD panel through a mirror galvanometer and a coupling lens. The mirror galvanometer is rotated in such a way as to move the color band sets over the DMD panel up and down by the amount corresponding to the pitch of the color band sets while the DMD panel is being driven.

Abstract: A computer key includes first and second linking frames interconnecting pivotally a base plate and a push button. The first and second linking frames are connected pivotally at first and second linking arms thereof. Each of the second linking arms has a pin member extending outwardly and transversely therefrom, and a second transverse axle connected thereto. Each of the first linking arms has a first transverse axle connected thereto, and an elongated slot extending in a longitudinal direction thereof. Each of the first linking arms further has a protrusion projecting from an internal wall of the elongated slot to form left and right sections longitudinally of the elongated slot.

Abstract: A foldable data input device includes a keyboard, a hinge device and a lid. The keyboard is formed with a top face and opposing first and second side edges and has a plurality of keys mounted on the top face and a signal transmission device mounted on the keyboard. The lid is connected pivotally to the first side edge of the keyboard by the hinge device in order to cover the top face of the keyboard. The lid further has an inside face for confronting the top face, a touch pad and selection buttons provided on the inside face.

Abstract: An electrical connector assembly is used to connect first and second flexible connecting strips of a film circuitry and a main circuit board. Each of the first and second flexible connecting strips has a flat end portion and a plurality of electrical terminals formed on one of the opposite side faces of the flat end portion. The electrical connector assembly includes an inverted U-shaped clip member and a connector board. The inverted U-shaped clip member has first and second leg portions. The first leg portion is integrally formed with the flat end portion of the first flexible connecting strip. The second leg portion is connected adhesively to the flat end portion of the second flexible connecting strip. The connector board has a plurality of conductive members formed on two opposed side faces of the connector board, and a mating portion for connecting electrically the conductive members to the main circuit board.

Abstract: To provide an output data controller which is capable of protecting the secrecy of print data and enhancing operability and where the degree of freedom of system constructability is high. In a file server, ID data is added to the header file of the print data stored in a first queue, and data representative of copy printing is added to the header file stored in a second queue. In security print mode, print data is not output to a printing device, if an ID and a password number collate with each other in a print server. In copy print mode, print data with data representative of copy printing is selected and output to the printing device.

Abstract: The output data controller is provided with a data printing area for storing print data. Management data is generated by the attribute data of a banner page and is stored in a management table. Based on the management data stored in the management table, the print data stored in the data printing area is managed.

Abstract: A computer key includes a one-piece base plate which is punched to form left and right retaining guideways that are spaced from each other in a longitudinal direction of the base plate. The retaining guideways include left and right retaining portions which extend uprightly from the base plate, and left and right blocking portions which extend from distal ends of the retaining portions away from each other and substantially longitudinal to the base plate. The blocking portions have left and right widths defined in a direction transverse to the longitudinal direction by front and rear left and right rough edges. A frame assembly includes first and second linking frames which are pivotally connected at intermediate portions thereof.

Abstract: A data transfer apparatus includes a computer-side input and output unit for transmitting a data signal which is periodically updated, and a printer-side input and output unit for receiving the data signal transmitted from the computer-side input and output unit and detecting the logic level of the data signal. Particularly, this data transfer apparatus further includes a state transition time measuring circuit, a computer-side CPU, and a printer-side CPU cooperated to transmit a transition test data signal from the computer-side input and output unit in a tuning mode, measure the transition time of the transition test data signal received by the printer-side input and output unit, and adjust transfer parameters which define the transmission rate of the data signal to be transmitted from the computer-side input and output unit and a timing for detecting the logic level of the data signal, on the basis of a result of measurement.

Abstract: An automatic head retract system for a disk drive. The system operates in response to electric power turn off to retract the heads to a landing zone on the disk surface. The heads are retracted by operating a positioner motor under the control of logic internal to the disk drive unit without intervention by a host computer. The positioner motor comprises a multiphase DC brushless motor which, after power loss, is supplied with current from a capacitor charged during normal drive usage, and by the back EMF of a spindle motor. A latch mechanically locks the heads in the landing zone.

Abstract: An automatic head retract system for a disk drive is disclosed which operates in response to electric power turn off to retract the heads to a landing zone on the disk surface. The heads are retracted by operating a positioner motor under the control of logic internal to the disk drive unit without intervention by a host computer. The positioner motor comprises a multiphase DC brushless motor which, after power loss, is supplied with current from a capacitor charged during normal drive usage and by the back EMF of a spindle motor. A latch mechanically locks the heads in the landing zone.