摘要:
A liquid crystal display device which includes: a plurality of source bus lines in parallel with each other; a plurality of gate bus lines in parallel with each other, crossing the source bus lines; a switching element connected to one of the plurality of source bus lines and one of the gate bus lines; a pixel portion connected to the switching element; and a source drive circuit for supplying a data signal to the plurality of source bus lines, wherein the source drive circuit has a data signal line connected to the respective source bus lines, and the data signal line forms a closed circuit, thereby making a delay time of the data signal supplied to the plurality of source bus lines uniform is disclosed.
摘要:
A driving circuit for use in a display apparatus for transmitting a video signal to data lines includes a plurality of shift registers; a control signal generating circuit for outputting a control signal which is at the ON level during a period shorter than a pulse width of signals outputted by the shift registers; a switching circuit controlled to be ON or OFF based on the control signal; and a sampling capacitor for holding the video signal sampled by the switching circuit. In such a driving circuit, the plurality of shift registers sequentially output signals so that the periods in which the signals are high are partially overlapped sequentially. The control signal generating circuit outputs a control signal which is at the On level during a period shorter than the signals from the shift registers. Since the switching circuit is controlled to be ON or OFF based on the control signal, a period in which the switching circuit is conductive is short. Accordingly, the number of such switching circuits which are simultaneously conductive is small, thereby applying a capacitance of only a small number of capacitors to a video signal line.
摘要:
A vertebral body spacer of the present invention is used by being inserted between a vertebral body and a vertebral body (intervertebral space). The vertebral body spacer has a block body constituted of titanium or a titanium alloy as a main component thereof, and provided with a pair of contact surfaces to be made contact with the vertebral body and the vertebral body. The block body includes dense sheets having a dense part on at least a surface thereof and porous sheets having a porous part on at least a surface thereof. The porous part has a larger porosity than a porosity of the dense part. Each of the porous sheets is sandwiched between the pair of dense sheets. According to the present invention, it is possible to maintain an appropriate size between the vertebral bodies (intervertebral space).
摘要:
An organic electroluminescent device includes at least two light-emissive units provided between a cathode electrode and an anode electrode opposed to the cathode electrode, each of the light-emissive units including at least one light-emissive layer. The light-emissive units are partitioned from each other by at least one charge generation layer, the charge generation layer being an electrically insulating layer having a resistivity of not less than 1.0×102 Ωcm.
摘要:
A camera on which a lens apparatus is mounted is disclosed. The camera includes a controller which performs a focusing control corresponding to the mounted lens apparatus; a display unit which performs display process corresponding to an output of the controller; and a storage section which stores correction information for correcting a calculation result in the focusing control by the controller, in association with the mounted lens apparatus.
摘要:
Method for controlling a laser power used in recording on an optical disk includes: causing the laser to emit a test light emission pattern including a multipulse light emission interval and an at-bottom value continuous light emission interval; receiving the test light emission pattern of the laser to convert the pattern to an electric signal and to thereby obtain a light detection signal; calculating a detection value of a multipulse average value from the average value of the light detection signal, and calculating a bottom detection value from the light detection signal to obtain a light emission power characteristic of the laser on a supplied current based on the detection value of the multipulse average value and the bottom detection value; and controlling the current supplied to the laser based on the light emission power characteristic on the current supplied to the laser.
摘要:
There is a problem that the contact-type image sensor, for adoption in an image input/output apparatus to input/output the image of a large-sized document, such as A0 or A1 size, is weak in lengthwise rigidity and readily deflected at its lengthwise center by its own weight. Accordingly, by attaching a deformation rectifier to the image sensor in a lengthwise direction thereof, the contact type image sensor is reinforced in lengthwise rigidity. The deformation rectifier reinforces the rigidity of the contact type image sensor, thereby preventing the contact type image sensor from deflecting vertically relative to its lengthwise direction and keeping constant the focal length between the surface of the document to be read and the sensor IC.
摘要:
In a magneto-optical disk drive using a domain wall moving magneto-optical recording medium, a test-writing operation adjustment to deal wit dynamic fluctuation factors is minimized, and a reproducing or recording laser power is automatically optimized. A power of a light beam by which a domain wall starts to move is detected, and a power of a laser used to reproduce or record an information is corrected based on a change in the domain wall movement starting power. As the domain wall movement starting power, it is possible to use, for example, when the power of a light beam is varied, such a power as to maximize a rate of change of the amplitude of a reproducing signal.
摘要:
An optical disk can detect reliable address data without the need of checking the validity of synchronous detection of segment numbers. The optical disk has one or more tracks, and address data is arranged in a distributed manner on the tracks. A generating polynomial that generates an error detection code of a segment number included in the address data, which represents location information in the disk rotatory direction, is made different from a generating polynomial that generates an error detection code of a track number included in the address data, which represents location information in the disk radial direction.
摘要:
In an optical disc drive, a laser light source emits a laser beam having an intensity changeable with the amount of drive current supplied. A first photodetector receives the laser beam reflected from an optical disc, thereby generating a readout signal. A second photodetector receives the laser beam, generates an electric signal representing the power of the laser beam received, and outputs the electric signal as a light quantity detection signal. A feedback control loop compares the level of the light quantity detection signal with a predetermined target value and regulates the drive current such that the level of the light quantity detection signal approaches the target value. In reading data from the optical disc, the target value is changed so as to compensate for a variation of the sensitivity of the second photodetector, thereby controlling the power of the laser beam emitted from the laser light source.