Abstract: A fault searching system for an optical line searches a fault in an optical line connected with an optical fiber carrying out data transmission between from a transmission apparatus at a center station side via an optical divider (PON) up to a user optical terminal. An OTDR carries out a test for the optical fiber based on backward scattering light or return light from the optical fiber by making test light be incident into the optical fiber. A connecting unit detaches a terminal portion of the optical line at an inside of the user optical terminal from the inside of the user optical terminal, and connects the OTDR to the terminal portion of the optical line. An incident unit makes at least one of test light with a wavelength different from a wavelength of light used for data transmission in the optical line, and test light whose peak level is less than or equal to a predetermined level be incident upon the terminal portion of the optical line from the OTDR.

Abstract: A liquid crystal projector apparatus is presented, which can display an image free from an influence of a temperature variation of a liquid crystal panel without the necessity to directly measure the temperature of the liquid crystal panel. The liquid crystal projector apparatus includes a temperature sensor for detecting a temperature at a location in the liquid crystal projector apparatus except liquid crystal panels, a memory for storing temperature detection data obtained by the temperature sensor within a period from a power supply starting time to a steady operation entering time, an arithmetic operation device for estimating a temperature of each of the liquid crystal panels based on the temperature detection data stored in the memory, and liquid crystal drive sections for correcting drive voltages for driving the liquid crystal panels with output signals of the arithmetic operation device.

Abstract: A recording apparatus of this invention detects the state of management information, which pertains to a recording address of an image signal, and which is reproduced from a disk-like recording medium having a first area for the image signal and a second area for the management information. On the basis of the detection result, management data is reproduced from the first area of the disk-like recording medium. On the basis of the management data reproduced from the first area, the management information reproduced from the second area is modified. A modify unit records the modified management information in the second area.

Abstract: A recording apparatus of this invention detects the state of management information, which pertains to a recording address of an image signal, and which is reproduced from a disk-like recording medium having a first area for the image signal and a second area for the management information. On the basis of the detection result, management data is reproduced from the first area of the disk-like recording medium. On the basis of the management data reproduced from the first area, the management information reproduced from the second area is modified. A modify unit records the modified management information in the second area.

Abstract: A signal processing apparatus which is capable of reducing the occurrence of noise at editing points without the need to decode an encoded audio signal when editing the encoded audio signal. A recording/reproduction section reproduces an audio signal sequence including an audio signal encoded according to normalization information for controlling amplitude of the audio signal, and the normalization information. A normalization information converter changes the normalization information of the reproduced audio signal sequence.

Abstract: Image data of the respective colors are converted, by look-up tables in which &ggr; correction data are stored, into gradation data that are white-balanced with intervention of the V-T characteristics of liquid crystal panels. The generated gradation data are supplied to D/A converters and the liquid crystal panels via liquid crystal driving circuits. Gamma correction data within dynamic ranges that are set for each display apparatus by measuring a luminance ratio and contrast ratios of the respective colors are written to the look-up tables in advance. As a result, all they correction data stored in the look-up tables can be used effectively. The invention is directed to such a method for generating data of look-up tables and an image display apparatus that performs gradation correction by using thus-formed look-up tables.

Abstract: The image processing apparatus of this invention is so constructed as to enter the image signal of which one frame is composed of plural interlaced fields each of which is divided into plural blocks each consisting of plural pixels, to interpolate the image signal of a second field utilizing the image signal of a first field in the image signal outputted in the unit of the above mentioned block, and to output the image signal in the unit of the above-mentioned block.

Abstract: The automatic clutch control device according to the present invention controls, regardless of the gear-shift operation, the clutch 24 to be brought into a half-clutch state or to a perfect disconnecting state according to a running state of a vehicle from the following five viewpoints: deceleration slip amount of driving wheels RL and RR; a convergence time of a driving wheel speed to the driving wheel in a pressure-down mode during a vehicle stabilizing control (for example, ABS control); a continuation time of a judder vibration; whether the vehicle is in a spinning state or not; and whether there is a possibility that an engine stall occurs during a traction control. As a result, this device can attain at least one or more objects of the improvement in stability of the vehicle, improvement in precision of the vehicle stabilizing control, improvement of comfortableness of the occupant and prevention of the occurrence of the engine stall.

Abstract: This automatic clutch control device selects a normal mode when a road friction coefficient is not less than 0.3 at a disconnecting operation starting point (time t1), selects a little low-speed mode when it is not less than 0.1 but less than 0.3 and selects a low-speed mode when it is less than 0.1. Further, when a vehicle stabilizing control such as a traction control or the like is not executed at the time t1, this device selects the normal mode, while when a vehicle stabilizing control is executed at the time t1, it selects the low-speed mode. Moreover, this device selects a high-speed mode when the vehicle is in a sports running mode at the time t1, while selects the normal mode when the vehicle is not in the sports running mode. A connecting operation of a clutch is performed with a speed corresponding to the selected mode in an automatic clutch connecting/disconnecting control by a clutch connecting/disconnecting actuator upon executing a gear-shift control.

Abstract: A recording apparatus for encoding an inputted image signal by a plurality of different encoding methods to record it, wherein sync data having a pattern corresponding to a selected one of the plurality of encoding methods is formed, a plurality of sync blocks are formed by adding the sync data corresponding to the selected encoding method to each of a predetermined amount of the encoded image data encoded by the selected encoding method, and an encoded data stream constructed by the plurality of sync blocks is recorded onto a recording medium.

Abstract: First image data and second image data different from the first image data are input in an image processing apparatus/method. At least one of the first image data and the second image data is encoded while being subjected to orthogonal transformation processing. The first image data and the second image data are transformed into first and second orthogonal transformation coefficient data, and the first and second orthogonal transformation coefficient data are synthesized. A recording medium capable of being read by a computer stores an image processing program for the image processing method.

Abstract: It is an object of this invention to allow easy recognition of the contents of a motion image file when INDEX is displayed. To achieve this object, an image playback apparatus includes a playback device adapted to play back from a recording medium a plurality of image files each having motion image data, a display device having a function of displaying on the same screen representative images of a plurality of image files recorded on the recording medium by using the image files played back by the playback device, a selecting device adapted to select an arbitrary one of the plurality of representative images displayed on the display device, and a control device adapted to control the playback device and the display device such that the display form of the representative image selected by the selecting device differs from the display form of other representative images.

Abstract: In active driving of liquid crystal panels (R, G, and B) corresponding to R, G, and B color by X shift registers (R, G, and B) and Y shift registers (R, G, and B), alternating-current driving is performed such that signals to be written to the R color and B color liquid crystal panels are opposite in polarity to a signal to be written to the G color liquid crystal panel and also Vcom voltage of each of the liquid crystal panels is adjusted to thereby reduce flicker. The Vcom voltage supplied to the B color liquid crystal panel, for example, is finely adjusted to reduce flicker of a synthetic image of the liquid crystal panels.

Abstract: The present invention provides a liquid crystal projector apparatus and a driving method for a liquid crystal projector apparatus, which can display an image with an optimum picture quality free from an influence of a temperature variation of a liquid crystal panel without the necessity to directly measure the temperature of the liquid crystal panel.

Abstract: The present invention uses linear chromaticity conversion to carry out color reproduction of an LCD compatible with a CRT. According to the invention, an inputted signal is subjected to a similar processing to a conventional case in a signal processing portion which is used in a conventional CRT display. A light source chromaticity conversion processing portion carries out a &ggr; correction to the signal inputted from the signal processing portion in a &ggr; operation portion by using &ggr;1=&ggr;crt of the same nonlinear characteristics as the CRT, and further carries out an operation of a chromaticity conversion matrix in a matrix operation portion. An LCD inverse &ggr; correction portion uses &ggr;2 establishing &ggr;_lcd=&ggr;lcd/&ggr;2=1 to carry out an inverse &ggr; correction to the inputted signal.

Abstract: A method and apparatus for driving a display device having a liquid crystal, plasma or electroluminescence unit or the like, wherein: when a display device consisting of display elements having discrete fixed pixels and wobbling elements for wobbling a light beam emitted from the display elements is to be driven, the timing of sampling while scanning a first field and the timing of sampling while scanning a second field are shifted by a period of time &Dgr;t corresponding to the amount of pixel shift &Dgr;Lx resulting from the wobbling, and the display elements are applied with the shifted timings of sampling, with the result that a high resolution interlace display compatible with the NTSC system or the HD system is made possible. In display devices having a liquid crystal display unit, plasma display unit, and electroluminescence display unit, interlace display capable of effecting the NTSC color television system or the HDTV system with high resolution is made possible.

Abstract: In active driving of liquid crystal panels (R, G, and B) corresponding to R, G, and B color by X shift registers (R, G, and B) and Y shift registers (R, G, and B), alternating-current driving is performed such that signals to be written to the R color and B color liquid crystal panels are opposite in polarity to a signal to be written to the G color liquid crystal panel and also Vcom voltage of each of the liquid crystal panels is adjusted to thereby reduce flicker. The Vcom voltage supplied to the B color liquid crystal panel, for example, is finely adjusted to reduce flicker of a synthetic image of the liquid crystal panels.

Abstract: In a brake system of a four-wheel vehicle having a powered fluid pressure source, fluid flow control circuit including control valves, and an automatic controller for selectively operating the powered fluid pressure source and the control valves so as to supply a controlled fluid pressure based upon the powered fluid pressure source to a selected one or more of the wheel cylinders for an execution of a behavior control of the vehicle according to running conditions of the vehicle, the automatic controller also executes a brake control of supplying a controlled fluid pressure based upon the powered fluid pressure source to at least one of the wheel cylinders according to a depression of a brake pedal by a driver during the execution of the behavior control, the at least one wheel cylinder being one or more of the wheel cylinders not selected for the behavior control.

Abstract: A negative pressure control apparatus for a brake booster is provided which can always maintain a required negative pressure in a negative pressure chamber of the brake booster in a system including a direct-injection engine. The apparatus has a brake operation predicting part for predicting execution of a brake operation by a driver. When execution of a brake operation is predicted, negative pressure in the negative pressure chamber is controlled to be a required value.

Abstract: Image data of the respective colors are converted, by look-up tables in which &ggr; correction data are stored, into gradation data that are white-balanced with intervention of the V-T characteristics of liquid crystal panels. The generated gradation data are supplied to D/A converters and the liquid crystal panels via liquid crystal driving circuits. Gamma correction data within dynamic ranges that are set for each display apparatus by measuring a luminance ratio and contrast ratios of the respective colors are written to the look-up tables in advance. As a result, all they correction data stored in the look-up tables can be used effectively. The invention is directed to such a method for generating data of look-up tables and an image display apparatus that performs gradation correction by using thus-formed look-up tables.