摘要:
A light-detecting element, an analog-to-digital converter circuit, and a parallel-serial converter circuit are mounted on a substrate, using a thin film transistor, of an active matrix-type display device, and when a circuit is selected by an external chip-select signal, the luminance is adjusted by transmitting a signal of the light-detecting element, converted into digital data, to a luminance control circuit in sync with a clock signal.
摘要:
A light-detecting element, an analog-to-digital converter circuit, and a parallel-serial converter circuit are mounted on a substrate, using a thin film transistor, of an active matrix-type display device, and when a circuit is selected by an external chip-select signal, the luminance is adjusted by transmitting a signal of the light-detecting element, converted into digital data, to a luminance control circuit in sync with a clock signal.
摘要:
Provided is an inputting device that is disposed in an opening of a cabinet surface. The device includes an elastic sheet having an outside surface disposed on an inside surface of the cabinet including the opening and across the opening. A sliding key is fixed on the outside surface of the elastic sheet with at least a portion in the opening of said cabinet surface. The device also includes sensors to detect movement, in a horizontal direction that is substantially parallel to said cabinet surface, of the sliding key. The device also includes guides being possible to be recognized optically that are disposed on designated positions on the elastic sheet, and the sensors detect the moved direction and the amount of the horizontal movement of the sliding key by reading the movements of said guides optically.
摘要:
A liquid crystal display unit includes a control section. The control section reads LED electric current data stored in a storage section based on input information to control a backlight drive section, and controls an LCD panel based on the input information and a video signal. The backlight drive section provides a backlight with an electric current according to the LED electric current data. The LED electric current data outputted to the backlight drive section from the control section and image data outputted to the LCD panel from the control section are transmitted via a common signal line.
摘要:
A mobile communication terminal having a security function using biological information for authentication includes: authentication units for performing authentication based on at least two kinds of biological information; and a control unit for performing operational control of the authentication units. The control unit has a function of proceeding with capturing of biological information and authentication processing based on the captured biological information, performed for the respective kinds of biological information by the authentication units, in parallel.
摘要:
In an electro-acoustic transducer 100 which is an oscillator device, a flat piezoelectric film 120 that moves expansively and contractively through the application of an electric field is disposed on at least one surface of a flat elastic member 110 in which a plurality of holes 111 penetrate a principal surface thereof. Since the stiffness of the elastic member 110 is adjusted by the holes 111, the stiffness impedance with respect to the piezoelectric film 120 can be matched optimally. Thus, it is possible to suppress the amount of vibration displacement and to complement the conversion efficiency of the piezoelectric film 120.
摘要:
In an oscillator (100), a plurality of piezoelectric vibrators (111 to 113) supported by vibrator support mechanisms (120) individually output highly directional sound waves. The plurality of piezoelectric vibrators (111 to 113) is formed by dividing a laminated body of an elastic member and a piezoelectric substance by the vibrator support mechanisms (120). Since it is not necessary to arrange the plurality of piezoelectric vibrators in a matrix, the entirety of a device can be small-sized. A sound deflection unit that deflects a sound wave which is output by at least one of the piezoelectric vibrators may be further included.
摘要:
Each of piezoelectric vibrators 110 includes an elastic member 112 and a piezoelectric element 111. The piezoelectric element 111 is attached to the elastic member 112. A supporting member 120 has an opening. A plurality of the piezoelectric vibrators 110 are arranged in the opening along a first direction. It is preferable that the plurality of piezoelectric vibrators 110 have the same fundamental resonance frequency. In addition, it is preferable that an arrangement pitch of the piezoelectric vibrators 110 is equal to or less than half the wavelength of the fundamental resonance frequency.
摘要:
An oscillation device includes a first oscillator (120), a second oscillator (112), and a control unit (50). The first oscillator (120) includes a first piezoelectric vibrator, and the second oscillator (112) includes a second piezoelectric vibrator. The control unit (50) inputs an audio signal of an audible sound to the first piezoelectric vibrator included in the first oscillator (120), and inputs a modulation signal of a parametric speaker to the second piezoelectric vibrator included in the second oscillator (112).
摘要:
In an electro-acoustic transducer 100 which is an oscillator device, center positions of principal surfaces of piezoelectric elements 130 that are positioned on both surfaces of an elastic member 120 are different from each other. As such, since the two piezoelectric elements 130 are disposed asymmetrically on the upper and lower sides in the electro-acoustic transducer 100, it is possible to prevent vibrations of reversed phases at the time of divided vibration in which the reversed phases overlap with each other. In other words, since it is possible to prevent the generation of sound waves due to the vibration of local reversed phases, the sound pressure level can be improved.