摘要:
A meandering groove is formed in a digital disk (10) with a wobble signal that is wobbled to reproduce a clock signal. The wobble signal is read out by an optical head (26). An address detection circuit (40) detects an address signal that is multiplexed with the wobble signal. A PLL oscillation circuit (24) provides a clock signal in synchronization with the wobble signal. Data is modulated by a modulation circuit (16) according to the clock signal and a timing signal based on the address signal, and recorded on the digital disk (10). In reproduction, a RF signal in the wobble signal is converted into a digital signal by an A/D converter (42). The signal is demodulated by a demodulation circuit (44) for data output.
摘要:
A throttle valve controller for an internal combustion engine in which a ring gear comprises a core body having rigidity and a synthetic resin tooth portion integrated with the core body to improve the engagement accuracy of the ring gear and reduce costs.
摘要:
A higher reliable air control valve capable of improving producibility and reducing manufacturing cost without unpleasant characteristic change under operation. An air control valve includes: a bobbin wound by an energizing coil; a fixed plate for covering one end of this bobbin to construct a magnetic path; a yoke for at least partially covering the other end of said bobbin and an outer peripheral portion of the energizing coil, and being engaged with said fixed plate to constitute the magnetic path; an exterior member for constituting an exterior of said energizing coil and for making up the bobbin, the fixed plate, and the yoke in an integral form; a fixed core fitted into an inner diameter portion of said bobbin and fixed to said fixed plate; a movable core slidably inserted into the inner diameter portion of the bobbin along an axial direction and on which a valve body is slidably mounted via a spring at one end thereof along the axial direction; a return spring mounted between a spring adjusting member provided with said fixed core and said movable core; and a housing having an air inlet port, an air outlet port, and a valve seat provided in an air passage between said air inlet port and said air outlet port. Both said valve body mounted on said movable core and said valve seats of the housing constitute a valve; and said inner diameter portion of said bobbin is a guide for slidably holding said movable core along the axial direction.
摘要:
A liquid crystal display device which includes a plurality of OCB liquid crystal pixels arrayed substantially in a matrix, and a driver circuit which cyclically writes a non-video signal and a video signal as a pixel voltage in each of the liquid crystal pixels. The liquid crystal display device further includes a control circuit which sets a first period and a second period different in length from the first period such that a total time length of the first period and the second period does not exceed one frame period, and controls the driver circuit to execute write of the non-video signal for the liquid crystal pixels in the first period and to execute write of the video signal for the liquid crystal pixels PX in the second period.
摘要:
A liquid crystal display device includes an array substrate, a counter substrate and a liquid crystal layer held between the array substrate and the counter substrate. A display portion having a plurality of pixels arranged in a matrix is formed of the substrates and the liquid crystal layer. Each of the pixels includes a pixel electrode and a counter electrode arranged opposing to the pixel electrode. A driving portion is formed on the array substrate to supply a pixel voltage to the pixel electrode. A correcting circuit is formed on the array substrate to correct the voltage supplied to the pixel electrode by adding a predetermined DC voltage to the voltage supplied to the pixel electrode corresponding to gradations to be displayed in the pixel.
摘要:
In one embodiment, a pair of liquid crystal shutter glasses include a first liquid crystal shutter and a second liquid crystal shutter. The first and second liquid crystal shutters are switched to a transmissive state by turns. The respective first and second liquid crystal shutters include a first electrode substrate and a second electrode substrate opposing the first electrode substrate. An OCB (Optically Compensated Bend) mode liquid crystal layer is held between the first and second electrode substrates. The first electrode substrate includes a first electrode and a second electrode arranged adjacent to the first electrode. The first and second electrodes respectively include a side opposing each other and a plurality of projecting portions provided to the respective opposing sides of the first and second electrodes alternately.
摘要:
In a method of capturing carbon dioxide in a gas, carbon dioxide in a gas is adsorbed to the hybrid adsorbent prepared by mixing an adsorbent with iron oxide nanoparticles, microwaves are irradiated to the hybrid adsorbent and the carbon dioxide adsorbed to the hybrid adsorbent is desorbed from the hybrid adsorbent, and the carbon dioxide desorbed from the hybrid adsorbent is captured.
摘要:
A liquid crystal display device includes a liquid crystal display panel (LCD panel), an area light source device which illuminates the LCD panel, a driving unit which drives the LCD panel and the area light source device, and a control unit which controls the driving unit. The LCD panel includes display pixels. The area light source device includes plural kinds of light sources which are successively turned on in one frame period. The control unit includes means for controlling the driving unit in a manner to execute video signal write and reset signal write after the video signal write, in a period in which one of the plural kinds of light sources is turned on in the one frame period. The video signal write and the reset signal write are executed with the same polarity, and a polarity of potential of the display pixels is reversed between frame periods.
摘要:
In one embodiment, a liquid crystal display device includes first and second areas respectively having a gate line group in an active area, and a dummy gate line group arranged on an outside of the active area. A driving circuit selects the gate lines of the gate line group and the dummy gate lines of the dummy gate line group one by one in the first and second areas. The driving circuit is independently controlled for the first and second areas. The gate lines are scanned from a center portion of the active area to the dummy gate line side in the first and second areas, respectively. An image signal and a non-image signal are written within one-frame period in the first and second areas.
摘要:
In one embodiment, a display device includes a display panel having pixels. A first image signal for displaying two-dimensional pictures, a second image signal for displaying three-dimensional pictures, and a third image signal for displaying a black picture are written into the pixels. A control circuit writes the third image signal to the pixel of the display panel during at least one frame period when switching a first mode for displaying the two-dimensional pictures and a second mode for displaying the three-dimensional pictures.