Abstract: A signal input switching circuit, including a switch circuit including a plurality of input terminals to which signals are respectively applied as input from different signal sources, and the switch circuit supplying as output thereof a signal that is applied as input by way of an input terminal selected from among the plurality of input terminals, and input control units provided corresponding to each of the plurality of input terminals belonging to the switch circuit, controlling signal sources that are connected to input terminals that were not selected by the switch circuit to not present signals to the corresponding input terminals.

Abstract: A display apparatus includes a detector configured to detect an infrared ray emitted from a human body; a state signal generator configured to generate a state signal including at least one of a first state signal component indicating that the human body is approaching the detector and a second state signal component indicating that the human body is leaving from the detector in response to an intensity variance of the infrared ray detected with the detector; and a controller configured to start controlling an external device upon detecting the first state signal component from the state signal generated by the state signal generator but to stop controlling the external device upon detecting the second state signal component from the state signal.

Abstract: A signal input switching circuit, including a switch circuit including a plurality of input terminals to which signals are respectively applied as input from different signal sources, and the switch circuit supplying as output thereof a signal that is applied as input by way of an input terminal selected from among the plurality of input terminals, and input control units provided corresponding to each of the plurality of input terminals belonging to the switch circuit, controlling signal sources that are connected to input terminals that were not selected by the switch circuit to not present signals to the corresponding input terminals.

Abstract: A signal input switching circuit (19) that reduces the occurrence of malfunctions arising due to crosstalk between switch circuits has a plurality of input terminals to which signals are applied as input from signal sources and further includes: a plurality of switch circuits (15 and 16) that supply signals received as input by way of any of the input terminals that was selected from among the plurality of input terminals; input control units (18) that are provided corresponding to each of the plurality of input terminals belonging to each of the plurality of switch circuits (15 and 16) and that control input of signals from signal sources by way of corresponding input terminals; an input acceptance unit (17) that accepts operation input; and a CPU (12) that, in accordance with input to the input acceptance unit (17), causes each switch circuit to select any of the plurality of input terminals belonging to that switch circuit and supply the signal that was received by way of the selected input terminal, and f

Abstract: A signal input switching circuit (19) that reduces the occurrence of malfunctions arising due to crosstalk between switch circuits has a plurality of input terminals to which signals are applied as input from signal sources and further includes: a plurality of switch circuits (15 and 16) that supply signals received as input by way of any of the input terminals that was selected from among the plurality of input terminals; input control units (18) that are provided corresponding to each of the plurality of input terminals belonging to each of the plurality of switch circuits (15 and 16) and that control input of signals from signal sources by way of corresponding input terminals; an input acceptance unit (17) that accepts operation input; and a CPU (12) that, in accordance with input to the input acceptance unit (17), causes each switch circuit to select any of the plurality of input terminals belonging to that switch circuit and supply the signal that was received by way of the selected input terminal, and f

Abstract: A display apparatus includes a detector configured to detect an infrared ray emitted from a human body; a state signal generator configured to generate a state signal including at least one of a first state signal component indicating that the human body is approaching the detector and a second state signal component indicating that the human body is leaving from the detector in response to an intensity variance of the infrared ray detected with the detector; and a controller configured to start controlling an external device upon detecting the first state signal component from the state signal generated by the state signal generator but to stop controlling the external device upon detecting the second state signal component from the state signal.

Abstract: An LED backlight display device has a display panel body having a substantially rectangular shape which includes longer sides and shorter sides as edge portions; and a backlight arranged in a manner such that LED light emitting elements are aligned along the edge portions of the display panel body. The backlight is arranged at any one of the longer sides and the shorter sides of the display panel body; and a front sensor that measures luminance and chromaticity of the backlight is arranged at one side among the longer sides and the shorter sides of the display panel body where the backlight is not arranged at the one side.

Abstract: With this display apparatus, it is possible to switch between a mode wherein a movable shield plate closes a hole formed in a reflecting plate that reflects light from backlights which provide light from behind a liquid crystal panel that displays an image, and a mode wherein the hole is open. A color sensor arranged behind the reflecting plate detects information pertaining to the light from the backlights that has passed through the hole formed in the reflecting plate. Thus, it is possible to detect information pertaining to the light from the backlights from behind the reflecting plate with high precision, and to improve the appearance viewed from the display-surface side of the apparatus.

Abstract: A liquid crystal display apparatus according to the present invention includes: a liquid crystal panel; a backlight provided on a rear face of the liquid crystal panel; a detector which detects RGB output light levels of the backlight; a first controller which controls backlight current for driving the backlight so that a prescribed luminance is attained based on the RGB output light levels detected by the detector; and a second controller which controls display signals supplied to the liquid crystal panel so that a prescribed chromaticity is attained based on the RGB output light levels detected by the detector.

Abstract: A liquid crystal display apparatus according to the present invention includes: a liquid crystal panel; a backlight provided on a rear face of the liquid crystal panel; a detector which detects RGB output light levels of the backlight; a first controller which controls backlight current for driving the backlight so that a prescribed luminance is attained based on the RGB output light levels detected by the detector; and a second controller which controls display signals supplied to the liquid crystal panel so that a prescribed chromaticity is attained based on the RGB output light levels detected by the detector.

Abstract: When performing A/D conversion on image signals, when reducing noise that is caused by jitter by adjusting the phase of the sampling clocks, even if the input waveform has considerable waveform distortion such as a triangular wave, it is possible to reliably reduce this noise. Input analog image signals are converted into digital image data using sampling clocks from a PLL circuit by A/D conversion means. Next, image data that has delayed by a 1 clock delay circuit is subtracted from the digital data by a subtracter. The maximum value of one screen of the subtracted output is then determined, and 5 is subtracted therefrom to provide a threshold value. A comparator compares the subtracted output and the threshold value, and outputs a signal when the subtracted output is greater than the threshold value. A counter then supplies the count value of these signals to a CPU, and the CPU controls the phases of the sampling clocks using a switch.

Abstract: When performing A/D conversion on image signals, when reducing noise that is caused by jitter by adjusting the phase of the sampling clocks, even if the input waveform has considerable waveform distortion such as a triangular wave, it is possible to reliably reduce this noise. Input analog image signals are converted into digital image data using sampling clocks from a PLL circuit by A/D conversion means. Next, image data that has delayed by a 1 clock delay circuit is subtracted from the digital data by a subtracter. The maximum value of one screen of the subtracted output is then determined, and 5 is subtracted therefrom to provide a threshold value. A comparator compares the subtracted output and the threshold value, and outputs a signal when the subtracted output is greater than the threshold value. A counter then supplies the count value of these signals to a CPU, and the CPU controls the phases of the sampling clocks using a switch.

Abstract: The present invention provides an electrically-semiconductive poly(amic acid) liquid composition and a use thereof. An electrically-semiconductive poly(amic acid) (polyimide precursor) liquid composition whose electrical semiconductivity is applied by comprising an electrically-conductive carbon black. Change in an electrical resistivity of the liquid composition after being stored for 180 days at a temperature of 23° C. and in an atmosphere of a RH of 65% is 7% or less based on the electrical resistivity immediately after the preparation of the liquid composition. The electrically-semiconductive poly(amic acid) liquid composition is obtainable by mixing 5-40 parts by weight of a poly(amic acid), 95-60 parts by weight of an organic polar solvent and 10-40% by weight based on the poly(amic acid) of an electrically-conductive carbon black having a volatile content of 5-20%, a specific surface area of 100-300 m2/g and a pH of 2-4.

Abstract: A seamless tubular composite film wherein a seamless tubular film comprising fluororesin with a film thickness of 5-20 &mgr;m stretched 2-10% in circumferential direction is fitted on the outside of a seamless tubular film comprising a thermosetting polyimide resin, or the precursor polyamic acid and heated at 200-400° C. for anchorage. In addition, in order to give thermal conductivity and antistatic properties leading to inhibition reduction of heating time and inhibition of adhesion of dirt, boron nitride and compatible thermal conductive agents may be dispersed in the polyimide resin, and carbon black and like electric conductive agent may be dispersed in fluororesin. The film is useful as toner fusing member, such as in electrophotographic copying machines and in laser printing.

Abstract: The present invention relates to a heat-conductive polyimide film comprising a heat-conductive powder dispersed therein with a concentration gradient. The film can be produced, for example, by centrifugal casting. The film can be used as an excellent component or member in those fields in which heat conductivity is required in addition to mechanical characteristics, heat resistance and chemical resistance. For example, it is used as a thermal fixation member in a laser printer.