Abstract:
An electronic circuit apparatus for a compressor includes a board and a case. One corner of the board is fixed to case such that the board cannot move in the thickness direction and is movable in the flattening direction. According to this structure, even when an electronic part generates heat or outside air temperature of the case varies, the expansion or contraction of the board in the flattening direction is not affected by the expansion or contraction of the case in the flattening direction. Therefore, it is possible to prevent the deformation of the board and stress from being repeatedly applied to a soldering portion of the electronic part. As a result, it is possible to ensure the reliability of soldering strength for a long time.
Abstract:
The present invention has its object to provide an electrolyte anion which is high in decomposition temperature, in order to inhibit the electrolyte anion in the electrolyte solution for electrolytic capacitors from undergoing decarboxylation in the lead-free solder reflowing step to thereby prevent valve opening.The present invention uses an electrolyte solution comprising, as an electrolyte, the salt (A) composed of ammonium cation (a) and a polybasic carboxylic acid (b) anion, wherein the proton part charge of each carboxyl group in the polybasic carboxylic acid (b) as calculated by the quantum mechanics calculation software CAChe-based AM1 method is not higher than 0.243. Preferred is the polybasic carboxylic acid (b) represented by the general formula (1): wherein R1 to R4 may be the same or different and each represents a hydrogen atom, a functional group or a hydrocarbon group containing 1 to 3 carbon atoms, which may optionally contain a functional group, provided that at least one of R1 to R4 is an electron-donating group.
Abstract:
An iris imaging lens (1A) comprises a biconvex spherical lens (2A), a biconcave spherical lens (3A), and a visible light cut filter (4A), and at least one surface of the visible light cut filter (4A) is formed as a curved surface. In this configuration, the visible light cut filter (4A) serves as a lens, so that aberration is corrected not only by the biconvex spherical lens (2A) and biconcave spherical lens (3A) but also by the visible light cut filter (4A). As a result, aberration can be reduced to improve the lens performance without increasing the number of imaging lenses, and the increase in the cost of manufacturing can be limited.
Abstract:
The present inventors took notice of the fact that a person has constant repetitive nature in timing of restart of an indoor air conditioner after the OFF timer was ended, and it is an object of the present invention to provide an indoor air conditioner and an operation control method thereof capable of obtaining comfortable sleep by setting an automatic start condition suitable for a user. The indoor air conditioner includes an OFF timer function for continuing the operation until set time is elapsed, time elapsed until restart by restart input means 15 after an OFF timer is ended is stored in automatic start time storing means 35 as automatic start time, and a room temperature at the time of restart is stored in automatic start temperature/humidity storing means 36 as automatic start temperature.
Abstract:
A write-once read-many information recording medium is provided, which is capable of easily searching for a latest DDS and a latest defect list. At least one disc management working area is sequentially allocated in a predetermined direction on the write-once read-many information recording medium of the present invention. The latest defect list and the latest DDS are provided in a recorded disc management working area neighboring a border between the recorded disc management working area and an unrecorded disc management working area, where the latest defect list precedes the latest DDS in the predetermined direction.
Abstract:
There is provided an audio encoding device capable of maintaining continuity of spectrum energy and preventing degradation of audio quality even when a spectrum of a low range of an audio signal is copied at a high range a plurality of times. The audio encoding device (100) includes: an LPC quantization unit (102) for quantizing an LPC coefficient; an LPC decoding unit (103) for decoding the quantized LPC coefficient; an inverse filter unit (104) for flattening the spectrum of the input audio signal by the inverse filter configured by using the decoding LPC coefficient; a frequency region conversion unit (105) for frequency-analyzing the flattened spectrum; a first layer encoding unit (106) for encoding the low range of the flattened spectrum to generate first layer encoded data; a first layer decoding unit (107) for decoding the first layer encoded data to generate a first layer decoded spectrum, and a second layer encoding unit (108) for encoding.
Abstract:
A field-effect transistor includes a semiconductor layer (14) having a portion functioning as a channel region. The semiconductor layer (14) includes, as its constituent components, a plurality of electrically conductive microparticles (52), organic semiconductor molecules (53) bonded to the microparticles (52) so as to link the microparticles to one another (52), and cyclic molecules. Each of the organic semiconductor molecules (53) includes a π-electron conjugated chain as its main chain, and the π-electron conjugated chain is insulated by cyclic molecules.
Abstract:
An induction heating device includes a top plate arranged to have an object placed thereon, a heating coil receiving a high-frequency current to inductively heat the object, an infrared ray sensor for outputting a signal in accordance with energy of received infrared ray, a temperature detector for detecting a temperature of the object based on the signal output from the infrared ray sensor, a heating controller for controlling the high-frequency current supplied to the heating coil based on the detected temperature, and a failure determining unit for determining whether the infrared ray sensor has a failure or not. This induction heating device can detect the failure of the infrared ray sensor, and thus stops or suppresses the heating upon detecting the failure of the infrared ray sensor.
Abstract:
In order to enable intermittent output of an oscillation signal without essentially producing a leak in response to a pulse signal indicating a transmission timing of a radar wave, a radar oscillator is provided which employs a configuration in which an operation of an oscillating unit itself is alternately changed between an oscillating state and an oscillation stop state by a switch, rather than a configuration in which an output passage of an oscillation signal is switched to be opened and closed as in a conventional radar oscillator.
Abstract:
Provided is a fast Fourier transformation circuit capable of optimizing an operation resource while matching a plurality of communication systems. In this circuit, an FFT circuit (100) comprises a first FFT operation unit (110) for subjecting two-parallel 2 digital signals to FFT operations of (M−1) steps, a second FFT operation unit (120) for subjecting 2 digital signals to FFT operations of (N−M+1) steps, and a third FFT operation unit (130) for subjecting 2 digital signals to an FFT operation of one step. The output signal of the first FFT operation unit (110) is subjected to the FFT operation by the second FFT operation unit (120) and the third FFT operation unit (130) thereby to perform the FFT operations of 2 points and 2 points simultaneously.