摘要:
A novel circuit is provided for controlling an alternating current supplied to a load which includes a variable impedance element in the form of a low emitter concentration transistor which is bidirectional, and which has a high gain. The impedance of the variable impedance element to the flow of current therethrough is substantially the same in either direction of current flow.
摘要:
A 3D display apparatus of simple construction enabling many people to observe 3D images having many viewing points in a near-natural condition is provided. The apparatus includes picture image display parts, lenses forming images from the picture image display parts, and a screen diffracting and condensing picture images formed by the lenses to observing positions. The picture image display parts are arranged such that incident positions of lights, whose ray passing through the screen without changing its direction, would not coincide with the observing positions. At the picture image display part, a parallax picture image corresponding to a viewing point or an eye of an observer is displayed, and observed at corresponding observing position.
摘要:
A liquid ejection device includes:a line head having a plurality of liquid chambers storing liquid, heater elements generating bubbles by heating the liquid, and a nozzle ejecting a droplet from the liquid chamber using the bubbles;an ejection control portion that controls an ejection direction of the droplet to be a direction substantially orthogonal to the transportation direction of a recording medium;a line scanner that has resolution two or more times as high as resolution of the line head and detects a landing pattern made up of droplets landed on the recording medium; andcontrol means for detecting a variance pattern of a luminance level of an output signal outputted from the line scanner to detect a deviation of a landing position of the droplet on the basis of the variance pattern and correcting the ejection direction to be a direction in which the deviation is eliminated.
摘要:
In a picture reading apparatus according to this invention, in the pre-scan, an approach is employed to control a CCD line sensor 5 and a film carrying roller 103 so that plural pictures recorded on an optical film 1 are read at a predetermined sampling rate in order from the latest frame to generate frame position data indicating position of left and right ends of frame, etc. Further, in the main scan, an approach is employed such that, in controlling the CCD line sensor 5 and a film carrier 100 so that plural pictures recorded on the optical film are read at a sampling rate higher than the predetermined sampling rate in order from the oldest frame, the reading start and end timings of the CCD line sensor 5 are controlled on the basis of frame position data obtained by the pre-scan. As a result, in this picture reading apparatus, it is possible to precisely obtain picture data of picture of frame in the state where no positional shift takes place. In addition, since the pre-scan is carried out at a low sampling rate, frame position data can be obtained in a short time.
摘要:
A first editor memory is supplied with picture data that a user has selected, a second editor memory is supplied with a template that the user has selected, and a key memory is supplied with a key information that the user has selected. A switch inserts the picture data into the template in accordance with key information to deliver it to a video memory. A picture synthesis section inserts the picture data stored in the first editor memory into the picture insertion area designated by the key information within the template stored in the second editor memory in accordance with instruction from the user.
摘要:
A color film image reader for obtaining an image signal from a color film, comprising a light source for irradiating the color film with light; a color CCD for producing blue, green and red image signals from the light received from the color film; and means for adjusting the level of each of the image signals obtained by the color CCD. The light source comprises a 3-band type fluorescent lamp, and the relative emission powers thereof regarding blue, green and red light are approximately at a ratio of 10:4:1, wherein the molar weight ratios of its blue, green and red fluorescent materials satisfy the functions that (molar weight ratio of blue fluorescent material.quantum efficiency of blue fluorescent material):(molar weight ratio of green fluorescent material.quantum efficiency of green fluorescent material).(molar weight ratio of red fluorescent material.quantum efficiency of red fluorescent material).apprxeq.10:4:1. The glue fluorescent material is composed of BaM.sub.g2 Al.sub.16 O.sub.27 :Eu; the green fluorescent material is composed of La.sub.2 O.sub.3.0.2SiO.sub.2.0.9P.sub.2 O.sub.5 :Ce,Tb; and the red fluorescent material is composed of 3.5MgO.0.5MgF.sub.2 /GeO.sub.2 :Mn.sup.4+.
摘要:
A color image scanner which includes a plurality of light sources composed of a first light emitting diode for emitting a red light, a second light emitting diode for emitting a yellow light and a fluorescent light source for emitting a blue light, a control circuit for switching the plurality of light sources, sequentially and an image sensor for receiving light reflected from the original, scanned image, wherein a characteristic value of the light emitted from the first light emitting diode is selected so as to have an overlap in wavelength with that of the light emitted from the second light emitting diode, and a characteristic value of the light emitted from the fluorescent light source is selected so as to have an overlap in wavelength with that of the light emitted from the second light emitting diode.
摘要:
In a picture reading apparatus, in the pre-scan, an approach is employed to control a CCD line sensor 5 and a film carrying roller 103 so that plural pictures recorded on an optical film 1 are read at a predetermined sampling rate in order from the latest frame to generate frame position data indicating position of left and right ends of frame, etc. Further, in the main scan, an approach is employed such that, in controlling the CCD line sensor 5 and a film carrier 100 so that plural pictures recorded on the optical film are read at a sampling rate higher than the predetermined sampling rate in order from the oldest frame, the reading start and end timings of the CCD line sensor 5 are controlled on the basis of frame position data obtained by the pre-scan. As a result, in this picture reading apparatus, it is possible to precisely obtain picture data of picture of frame in the state where no positional shift takes place. In addition, since the pre-scan is carried out at a low sampling rate, frame position data can be obtained in a short time.
摘要:
At a storage unit 5, at least intermediate resolution picture data for monitor display, high resolution picture data for print, and print control data for controlling print operation of the high resolution picture data are recorded onto an optical disc. At the time of print operation, a system controller 6 reproduces print control data recorded on the optical disc to control a picture processing block 3, and a printer unit 2, etc. so as to implement thereto, e.g., expansion processing and/or color processing of picture, etc. corresponding to the print control data to carry out print operation.Thus, at the time of print operation, user can automatically carry out print out operation without designating print operation.
摘要:
A scanning apparatus for reading an image having a line sensor composed by positioning a plurality of sensing devices in line for reading an image of a document, a motor for moving the line sensor and the document relatively, the motor making a motion to move the line sensor at a right angle with a direction of an arrangement of the sensing devices, an analog-to-digital (A/D) converter for converting a first anaglog image signal output from the line sensor to a first digital image signal, a memory for storing the first digital image signal, a memory controller for generating a write signal to the memory and for appointing an address at which the first digital image signal is written in the memory according to each writing mode, each writing mode being used to determine a sequence to appoint the address, a selecting circuit for selecting the writing mode by controlling the memory controller, and a digital-to-analog (D/A) converter for converting a second digital image signal output from the memory to a second analog image signal.