摘要:
A laser recorder applicable to computer output microfilm recording apparatus comprises: a housing, a film feed unit having a film cassette loaded with a rolled heat development film; a film take-up unit for taking up the heat development film on a reel or on a tray, including a film storing mechanism for storing cut films sequentially; a main driving unit for driving the heat development film for advancing at a fixed speed for auxiliary scanning for recording image information on the heat development film, including a slackened film relief mechanism for eliminating slackened film around the main driving unit and a stepping motor driving current control circuit for driving the main driving unit at a low and fixed speed; loop detectors for preventing film feed force and film delivery force from working on the main driving unit, an image information recording unit for main scanning, having a laser optical system for scanning the heat development film across the width thereof to record image information recorded on the heat development film thereon; and a heat-development unit for heat-developing the image information recorded on the heat development film, including a delivery driving roller unit and a guide roller unit driven at different speeds respectively for eliminating blackened film around the heat-development unit as well as controlling the heat-development time, a temperature controller for controlling heat-development unit temperature, and a swing roller for separating the film from the heat-development unit when heat-development is not required.
摘要:
A signal processing apparatus comprising a plurality of video signal correlation detecting means for detecting the values of video signal correlations in a plurality of ways with respect to the displayed picture, and intermediate value selecting means for selecting an intermediate value among the detected values of the plurality of video signal correlations, whereby a changing video signal is processed by utilizing a correlation of a proper way.
摘要:
A color correction circuit is disclosed, which includes three video signal lines for supplying red, green and blue signals, respectively, a first circuit for detecting a white color component, a circuit for applying the red, green and blue signals to the first detecting circuit, a second circuit for detecting a predetermined color component, a circuit for applying at least two signals of the red, green and blue signals to the second detecting circuit, a circuit for producing a difference signal between output signals of the first and second detecting circuits and a circuit for controlling at least one of the red, green and blue signals according to the difference signal.
摘要:
Resistor compositions for producing a resistor for use in resistor-incorporated spark plugs and comprising a glass, an inorganic aggregate, and carbon black and/or a carbonaceous substance as a regulating agent for resistance value, with or without a stabilizing agent for resistance under load of the resistor, are now modified by addition of a reducing metallic powder such as powder of Al, Mg, Zn, Sn, Ti, Zr, Fe, Ga and Ag or alloys thereof, to improve the service life characteristics under load of the resistor. Such compositions are further modified by additional presence of a ceramic aggregate of a particle size of 100 to 800 .mu.m, to improve the electric wave noise-preventing property.
摘要:
A double-scanning non-interlace television receiver for receiving an interlace television signal having alternating odd and even fields of scan lines which are normally interlaced, as displayed, comprises a receiver circuit which receives the interlace television signal and generates received line signals representative of the scan lines of a field being received, a visual display apparatus, and a non-interlace converting circuit connected to the receiver circuit which generates an averaged line signal from two consecutive received line signals and serially supplies the averaged line signal and the consecutive received line signals to the visual display apparatus for display by the latter, with each averaged line signal being supplied and displayed between the respective received line signals.
摘要:
A command average machining current It(n) corresponding to change of a workpiece thickness is given by the following equations: ##EQU1## wherein the reference Ia(n) designates an actual average machining current Ia(n) at the workpiece thickness (Tn); It(n) designates an average machining current of the control command; Fn designates an actual machining feed rate; Ia(o) designates an actual average machining current at the initiation of the machining; S(o) designates a machining width; and To designates a workpiece thickness.The command average machining current It(n) is compared with the actual average machining current and the electric condition is changed and controlled to approach the actual average machining current to the command average machining current It(n) thereby controlling the work groove width to be constant in an electric discharge machining of the workpiece with a wire electrode.
摘要:
A color temperature control circuit for a color television receiver having a color decoder circuit supplied with a composite video signal and for generating red, green and blue primary color signals at its output terminals, a video output circuit for amplifying the three primary color signals, a tri-color cathode ray tube having three control electrodes adapted to receive the three primary color signals from the video output circuit, and a circuit arrangement connected between the color decoder circuit and the video output circuit, in which the circuit arrangement has the same transfer function for all three primary color signals when the input signals are below a predetermined level and a transfer function for the blue primary color signal larger than that for the red primary color signal when input signal levels of the blue and red primary color signals are larger than the predetermined level.
摘要:
In an electric discharge machine, a pulse voltage is applied between a wire electrode and a workpiece to cause electric discharge between said wire electrode and said workpiece in a work liquid, and said workpiece is moved to said wire electrode depending upon the configuration of said workpiece and the degree of said electric discharge work to obtain a desired configuration. The movement of said workpiece can be controlled depending upon the speed signal corresponding to a gap voltage and the degree of the signal. The size of the work area is detected by the speed signal and a sharp corner work is carried out under a low energy by controlling the power source and the thickness variation work is carried out by increasing the energy in the case that the work area is increased and by decreasing the energy in the case that the work area is decreased.
摘要:
In a variable speed facsimile transmitter employing a storage mode photodetection array as a line scanner, the array is driven at one of a plurality of selectable clock rates so as to generate a video line signal in response to each clock pulse. The photodetection array is discharged at an instant delayed from the occurrence of the clock pulse by an interval determined by the difference between the selected clock rate and the highest clock rate to discard the video signal available at that instant and then allowed to develop charge during the rest of the interval between clock pulses, whereby a constant magnitude video line signal is derived at the occurrence of each clock pulse regardless of the selected clock rate.
摘要:
A toy helicopter including a body, a frame mounted to rotate with respect to said body, a spindle extending through an opening provided in the frame and mounted to rotate with respect to the frame, an energy storing mechanism operatively connecting the spindle and frame, a first wing operatively connected to the spindle to rotate therewith, and a second wing operatively connected to the frame to rotate therewith.