Abstract: A voltage comparator of a power supply apparatus detects overshoot by comparing an output voltage with a threshold voltage. The power supply apparatus is provided with three switches. Upon detection of overshoot, the boosting operation of a booster circuit is suspended and the first through third switches are turned on. While the boosting operation is being suspended, the second switch operates to lower the output voltage. Concurrently, the first and third switches operate to forcibly lower an input voltage to allow the output voltage, occurring after the boosting operation is resumed, to approach a preset voltage.

Abstract: In a power supply apparatus for performing constant current driving of a light emitting diode which is a load circuit, a constant current circuit is disposed on a path for driving the load circuit. A charge pump circuit which is a voltage generating circuit outputs a driving voltage to the light emitting diode. A monitoring circuit monitors the voltage across the two ends of the constant current circuit. This monitoring circuit includes a voltage source which generates a threshold voltage that follows the fluctuation of the voltage at which the constant current circuit can operate stably, compares the voltage across the two ends of the constant current circuit and the threshold voltage generated by the voltage source, and outputs a comparison result Vs to a control unit. The control unit controls the charge pump circuit on the basis of the output of the monitoring circuit.

Abstract: A drive control circuit sends out pulse signals of various pulse signals so as to control the light emission amount and luminance of LEDs by gradually increasing and decreasing the pulse width in predetermined cycles during predetermined periods based on parameters supplied from an LED drive controller that determine a first emission control processing period, a second emission control processing period, first to fourth slope periods and the like. The tone of an emitted color realized by a plurality of LEDs is controlled by synchronizing the periods of time of light emission control processings.

Abstract: An electro-optical device includes a light emitting unit; a color filter that has a plurality of colored portions selectively transmitting light components belonging to a portion of a wavelength range of light emitted from the light emitting unit; and a color converting member that converts some of the light components emitted from the light emitting unit into light components having wavelengths around transmission wavelength ranges of the colored portions having one or more colors of the color filter, which is provided between the light emitting unit and the color filter.

Abstract: A method is provided for obtaining highly pure 1,6-hexanediol in which the contents of impurities such as 1,4-cyclohexanediol, 1,5-hexanediol, 1,2-cyclohexanediol, 1,7-pentanediol, 1,5-pentanediol and high boiling point components are significantly reduced.

Abstract: A drive control circuit sends out pulse signals of various pulse signals so as to control the light emission amount and luminance of LEDs by gradually increasing and decreasing the pulse width in predetermined cycles during predetermined periods based on parameters supplied from an LED drive controller that determine a first emission control processing period, a second emission control processing period, first to fourth slope periods and the like. The tone of an emitted color realized by a plurality of LEDs is controlled by synchronizing the periods of time of light emission control processings.

Abstract: A process state judging unit judges whether the state of the process is in the state that at least the integrity is held or not. A process executing unit executes the process based on the judged result by the process state judging unit. A reliability judging unit judges the reliability of program or data read in a main memory in response to the process state judged by the process state judging unit.

Abstract: A data processing apparatus includes first and second unsupervised learning process units and a supervised learning process unit. The first unsupervised learning process unit classifies data of a first data group according to unsupervised learning, to perform dimension reduction for the first data group and to obtain first classified data. The second unsupervised learning process unit classifies data of a second data group according to the unsupervised learning, to perform dimension reduction for the second data group and to obtain a second classified data group. The supervised learning process unit performs supervised learning using, as a teacher, the first classified data group obtained by the first unsupervised learning process unit and the second classified data group obtained by the second unsupervised learning process unit to determine a mapping relation between the first classified data group and the second classified data group.

Abstract: An LCD panel module includes a common boosting converter, an LCD boosting circuit, an LDO control circuit, and constant current circuits for parallel-connected LED elements and series-connected LED elements. The LCD panel module is so configured that a type-switching unit can switch over between Type 1 in which the LED elements are connected in parallel and Type 2 in which the LED elements are connected in series. The common boosting converter preliminarily boosts a battery voltage supplied from a lithium ion battery to a low voltage or a high voltage and supplies the boosted voltage to the parallel-connected LED elements or series-connected LED elements respectively. The LCD boosting circuit boosts the low voltage and supplies it to an LCD panel, while the LDO control circuit steps down the high voltage and supplies it to the LCD panel.

Abstract: In a power supply apparatus for performing constant current driving of a light emitting diode which is a load circuit, a constant current circuit is disposed on a path for driving the load circuit. A charge pump circuit which is a voltage generating circuit outputs a driving voltage to the light emitting diode. A monitoring circuit monitors the voltage across the two ends of the constant current circuit. This monitoring circuit includes a voltage source which generates a threshold voltage that follows the fluctuation of the voltage at which the constant current circuit can operate stably, compares the voltage across the two ends of the constant current circuit and the threshold voltage generated by the voltage source, and outputs a comparison result Vs to a control unit. The control unit controls the charge pump circuit on the basis of the output of the monitoring circuit.

Abstract: In a driver circuit for a charge pump circuit capable of switching a step-up ratio, first and second oscillators oscillating at different frequencies are provided. The charge pump circuit is controlled by a control unit. The first oscillator outputs a first periodic signal required for the control unit to control the step-up action of the charge pump circuit. The second oscillator outputs a second periodic signal employed for a time measurement and having a frequency set lower than that of the first periodic signal. The control unit monitors the state of the driver circuit itself or the charge pump circuit and switches the step-up ratio of the charge pump circuit if a predetermined state continues for equal to or more than a predetermined period of time. The control unit turns on only the first oscillator when the step-up ratio of the charge pump circuit is lager than 1 to thereby perform the control of the step-up action and the time measurement based on the first periodic signal.

Abstract: A voltage generating circuit includes a voltage generating unit which generates plural constant voltages, plural switches, a control signal generating unit and a decoding circuit. The switches select any one of the plural constant voltages generated from the voltage generating unit and outputs it from a voltage output terminal. The control signal generating unit generates plural control signals which are switched between a high level and a low level through trimming on plural fuse resistors. The decoding circuit controls the state of connection of the switches-according to the control signals. The reference voltage Vx output from the voltage output terminal is applied to an electric-current generating resistor through an operational amplifier and a transistor to generate a constant electric current.

Abstract: A pixel structure is provided in which a functional thin film having a uniform thickness can be formed in a pixel region, and an electro-optic device is obtained having superior uniformity of light brightness by the use of the above pixel structure. The functional thin film is formed on a thin film-forming surface surrounded by a partition for defining the pixel region. In this step, since the partition described above is formed of a first partition having a lyophilic surface and a second partition which is provided thereon and which has a lyophobic surface, and the first partition has parts which are not covered with the second partition, a liquid material for forming the functional thin film, which is filled inside the partition, can be formed into a film having a uniform thickness after drying due to the interaction between the lyophilic and the lyophobic properties.

Abstract: To provide an electro-optical device comprising a thin film having a uniform thickness, which is formed by drying liquid droplets filled in a liquid droplet ejection region surrounded by a partition. An electro-optical device comprises partitions 22 for separating a plurality of regions formed on a substrate 10. Each of the partitions 22 has a lyophilic first partition 43 and a liquid-repellent second partition 44 which is formed on an upper surface portion of the first partition except for a circumferential portion surrounding the region of the first partition 43. The device also comprises a functional layer 45 which is formed on the region surrounded by the partition and includes at least a light emitting layer.

Abstract: A control circuit may include a first feedback input terminal which receives the cathode terminal voltage of light-emitting elements from a current driving circuit as a feedback signal. Such an arrangement controls the ON/OFF state of a switching element such that the cathode terminal voltage approaches a predetermined voltage. A second feedback input terminal may be included to receive the anode terminal voltage of the light-emitting elements as a feedback signal. Such an arrangement controls the ON/OFF state of the switching element such that the anode terminal voltage does not exceed a predetermined threshold voltage. A feedback output terminal may be included of the current driving circuit which allows the cathode terminal voltage of the light-emitting elements to be input to a control circuit for the switching regulator as a feedback signal. The control circuit and the current driving circuit may be integrally provided in the form of separate semiconductor chips.

Abstract: A simulation condition input apparatus inputs information required for simulation analysis on a system including plural element members. The apparatus includes a display unit, a specifying unit and an input unit. The display unit displays the plural element members on a screen with geometrical shapes corresponding to the element members. The specifying unit specifies a contact portion between at least one set of the element members, which is an information input target, on the screen of the display unit. The input unit displays a new window screen and inputs information about a contact state of the contact portion specified by the specifying unit.

Abstract: When a step-up ratio control circuit sets a step-up ratio of a charge pump circuit to 1.0 to enable a short mode, a path inside the charge pump circuit is short-circuited and a first transistor is completely turned on. This produces an inrush current derived from a battery voltage of a lithium ion battery flowing into the charge pump circuit. To address this, a constant current circuit is operated so that the first transistor is turned on slowly. Further, the operation of an oscillator and an operational amplifier is suspended when the short mode is enabled.

Abstract: To provide an electro-optical device comprising a thin film having a uniform thickness, which is formed by drying liquid droplets filled in a liquid droplet ejection region surrounded by a partition. An electro-optical device comprises partitions 22 for separating a plurality of regions formed on a substrate 10. Each of the partitions 22 has a lyophilic first partition 43 and a liquid-repellent second partition 44 which is formed on an upper surface portion of the first partition except for a circumferential portion surrounding the region of the first partition 43. The device also comprises a functional layer 45 which is formed on the region surrounded by the partition and includes at least a light emitting layer.

Abstract: An icon generating device includes a mode selecting section and an icon generating section. The mode selecting section allows a user to select one display mode for each data file from among a plurality of display modes. The icon generating section generates icon data of each data file, for displaying an icon of each data file in the display mode selected for each data file. The icon generating section outputs the generated icon data of each data file.

Abstract: An electro-optical device includes a display unit having a plurality of pixels, and the display unit is divided into a plurality of areas. The electro-optical device also includes a plurality of optical sensors that are provided for the plurality of areas, each of the optical sensors being configured to detect a light intensity, and a controller that selectively performs recognition of an operation position on the display unit or measurement of an ambient light intensity on the basis of the light intensities detected by the plurality of optical sensors.