摘要:
A beam-indexing color television receiver having a phosphor screen including one index stripe for every predetermined integral number of phosphor stripe sets each including a red, a green and a blue phosphor stripe. The minimum bias current is supplied to the picture tube only upon detection of a chrominance signal within a predetermined hue range around a specific chrominance signal corresponding to the phosphor stripe which is in the middle between adjacent index stripes on the phosphor screen, thus attaining a superior color saturation and contrast.
摘要:
A switching regulator which chops an unstabilized D.C. input voltage by a switching transistor and rectifies the chopped voltage to produce a stabilized D.C. output voltage is disclosed. A series circuit of a resistor, a capacitor and a coil is inserted between a stabilized D.C. output terminal and a base electrode of an exciting transistor which excites the switching transistor to suppress the increase of a ripple voltage produced when the unstabilized D.C. input voltage drops.
摘要:
In a display panel including a plurality of signals lines along a column direction and a plurality of scanning lines along a row direction for applying a display signal to display elements forming pixels arranged in a matrix form of rows and columns on a substrate, a switching arrangement for connecting at least two display elements to a signal line in each row is line-sequentially scanned by the scanning lines so that the display signal is time-serially applied through the same signal line to each of the at least two display elements connected to that signal line. Thereby, total number of the signal lines can be reduced to a value equal to or smaller than the number of display elements in the row direction.
摘要:
A frontal light extraction type beam-indexing color picture tube arrangement comprises a phosphor screen which is formed on the inner surface of the tube panel and includes an array of color phosphor stripes each of which has an appropriate afterglow time and an array of index phosphor stripes each of which has a short afterglow time and emits a light index signal representative of the scanning position of an electron beam in the forward direction of the tube panel. A photoelectric converter for receiving the light index signal is provided in front of the tube panel.
摘要:
Ascochlorin or an analog or derivative thereof and a compound having a primary amino group are mixed and reacted with each other in the presence/absence of a basic catalyst to synthesize a novel imino compound. The novel imino compound thus synthesized is a ligand capable of activating nuclear receptor superfamily such as retinoid orphan receptor (RXR), peroxisome proliferator-activated receptor (PPAR) and steroid receptor (PXR), and shows an effect of promoting the transcription of a drug-metabolizing enzyme CYP7A1. The imino compound has a therapeutic effect on diseases such as lifestyle-related diseases, chronic inflammation and cancers.
摘要:
In an operation of an address period for addressing cells of a display device, such as a plasma display panel, comprising a plurality of cells of three kinds, red (R), green (G), blue (B), which are arranged on a plane for forming a display surface thereof, in which each of said cells comprising: a pair of transparent electrodes provided in parallel to each other; an address electrode being positioned opposing the pair of transparent electrodes; luminescence medium provided on the address electrode; and a discharge space being defined between the pair of transparent electrodes and said fluorescence medium on the address electrode, wherein the address discharge is conducted by applying an address voltage to the address electrode, and the address voltage applied is determined depending upon the each kind of the cells, R, G and B.
摘要:
An endoscope apparatus having an end section provided with an image forming optical system, a self-scanning type solid state image pickup device at which cyan and yellow color filters are positioned alternately to correspond to respective picture elements of the image pickup device, and a light guide. When green light is emitted from the light guide to an object, image signals corresponding to the green component of the object are picked up from all picture elements. When white light is emitted, cyan component image signals are picked up from the picture elements where the cyan filters are positioned, and yellow component signals form those where the yellow filters are positioned. Alternatively, when green light is emitted, green component signals are picked up from all picture elements and, when magenta light is emitted, blue component signals are picked up from the picture elements where the cyan filters are positioned and red component signals are picked up from those where the yellow filters are positioned. The image signals are then electrically processed to form a color image.
摘要:
An endoscope apparatus having an end section provided with an image forming optical system, a self-scanning type solid state image pickup device at which cyan and yellow color filters are positioned alternately to correspond to respective picture elements of the image pickup device, and a light guide. When green light is emitted from the light guide to an object, image signals corresponding to the green component of the object are picked up from all picture elements. When white light is emitted, cyan component image signals are picked up from the picture elements where the cyan filters are positioned, and yellow component signals from those where the yellow filters are positioned. Alternatively, when green light is emitted, green component signals are picked up from all picture elements and, when magenta light is emitted, blue component signals are picked up from the picture elements where the cyan filters are positioned and red component signals are picked up from those where the yellow filters are positioned. The image signals are then electrically processed to form a color image.
摘要:
A drive circuit having a transformer with its secondary winding connected to the base of a transistor and its primary winding connected to a drive source by which the transistor is driven to switch, wherein a directional element is connected between a tap provided on the secondary winding and one end of the secondary winding so as to select the ratio between the forward base current and reverse base current of the transistor.
摘要:
An endoscope system includes a solid state imaging device having an array of photosensitive cells for producing a video signal associated with an image of an object formed on the array, a color filter having filter segments of cyan and yellow disposed alternately in two-dimensional in association with the array, an illuminating unit for illuminating an object alternately with a first ray including green and a second ray including at least magenta, and a display unit for visualizing the video signal as a color image of the object. This system further includes a control circuit for synchronizing the imaging device with the illuminating unit so as to cause the imaging device to produce a first video signal including green and associated with a first field of a displayed picture while the illuminating unit illuminates the object with the first ray, and to alternately produce second and third video signals including at least red and blue, respectively, and associated with a second field of the displayed picture while the illuminating unit illuminates the object with the second ray, and a video circuit operative in response to the control circuit for forming the first field including green pixels from the first video signal, and forming the second field including red and blue video pixels disposed alternately from the second and third video signals, to cause thereby the fields to be displayed alternately on the display unit.