摘要:
A tracking error signal is converted into digital data by an A/D converter. A compensation circuit performs gain and phase compensation operations in accordance with the frequency of the digital data. A kick signal generation circuit turns off a switch in access processing and outputs a kick signal. A comparator detects the magnitude relationship between output data from a filter and a reference level. During data read processing, a system controller sets the reference level at R1, detects the disturbance of the rotation frequency of a disk, and appropriately sets the compensation characteristic of the compensation circuit. During access processing, the system controller sets the reference level at R2, detects the moving amount of a pickup, and if the moving amount is large, sets the value of the kick signal to be small.
摘要:
An inverter resistance welding control or power supply apparatus includes a clock generator which generates a clock signal defining a switching cycle of an inverter in a resistance welding machine, a device for preselecting a predetermined reference value corresponding to a desired current peak, a current sensor for detecting primary or secondary current of the welding machine, and an inverter control for controlling the inverter on a switching cycle-by-cycle basis. Specifically, the apparatus turns on the inverter in response to a leading edge of the clock signal, and turns the inverter off either when the current detected signal has reached the reference value or when the clock signal has reached a trailing edge. The control apparatus further includes a magnitude evaluator for measuring a magnitude of the current from the detected signal, which magnitude is expressed in root mean square, arithmetic mean or averaged peak value. The control apparatus further includes a reporter monitor which reports, based on the measured results of the current, information useful to determine normal or defective operation. There may further be provided a lack-of-secondary current detector for operatively and reliably detecting a lack of secondary current by monitoring the primary current.
摘要:
An electrolytic capacitor having very thin spacer layers is produced by a process in which at least two of the surfaces of an anode valve action metal foil and a cathode metal foil are coated with a photosensitive polymer resin solution; the resultant photosensitive polymer resin solution layers are solidified; the solidified photosensitive polymer resin coatings are masked with a negative or positive masking film having a desired pattern and irradiated with an actinic radiation to partly harden the photosensitive polymer resin coatings in accordance with the masking pattern; after removing the masking film, the irradiated photosensitive polymer resin coatings are developed with a developing liquid to provide spacer layers consisting of hardened portions of the photosensitive polymer resin coatings; the anode and cathode metal foils having the spacer layers are superposed on each other in such a manner that at least one spacer layer is located between the superposed anode and cathode metal foils and at least one other spacer layer is located on at least one of the outside surfaces of the superposed anode and cathode metal foils, to provide a laminate; the laminate is wound into a capacitor element; and then the capacitor element is impregnated with an electrolyte.
摘要:
A capacitor element is enclosed within a laminated film including at least a plastic film. The laminated film portion surrounding the capacitor element is heat sealed to form an enclosure structure sealing the capacitor element. The sealing width of the sealed portion formed by heat sealing is selected to be within the range of 1 to 20 mm. The thickness of the inner film of the laminated film opposing the capacitor element is selected to be within the range of 70 to 200 .mu.m. A capacitor of improved life time is obtained.
摘要:
A static semiconductor memory having a plurality of memory cells respectively connected to word lines and connected in parallel to bit line pairs and having a power-down function, is provided with a coupling noise canceller connected to a data bus which is connected at one end to a bit line via a transfer gate and at the other end to a sense amplifier. When the static semiconductor memory is placed in a power-down mode, the coupling noise canceller operates to clamp the data bus at a predetermined potential; thus preventing an increase in the access time when the chip is accessed from the power-down state rather than the active state.
摘要:
An address buffer circuit which generates a pair of complementary signals for selecting a memory cell according to an address input signal is disclosed. This address buffer circuit comprises a short circuit device connected between a pair of output terminals for the complementary signals. During the stand-by period of a memory, the short circuit device electrically connects the pair of output terminals, so that the potential of both of the pair of output terminals becomes an intermediate level between high and low levels provided at the output terminals during the active period of the memory.
摘要:
A method of manufacturing a packaged soybean curd with a long shelf life without the inclusion of any artificial additives such as coagulating agents, germicides and the like; wherein soybean juice is subjected to lactic acid fermentation until its pH is reached to a value equal to or less than a value which is determined from the percentage of the solids content (5-16 wt. %) of soybean juice and then is subjected to heating (60.degree.-95.degree. C., 10-100 minutes) to adjust the curd tension to above 20 g.
摘要:
A brake override system detects a brake operation based on master cylinder pressure when the brake operation followed by an accelerator operation results in simultaneous performance of the accelerator operation and the brake operation. The brake override system detects the brake operation by a brake switch when the accelerator operation followed by the brake operation results in the simultaneous performance of the accelerator operation and the brake operation. Thus, the system may accurately detect the brake operation regardless of the order of the accelerator operation and the brake operation.
摘要:
A vehicle has a shift mechanism and a position detection device that detects an operation position of the shift mechanism. A transmission is brought to a power transmission state when an operation unit of the shift mechanism is operated to a driving position, and is brought to a power interrupt state when the operation unit is operated to a non-driving position. A driving force limitation process for reducing the driving force of an internal combustion engine is executed when it is determined that the non-driving position has been shifted to the driving position on the basis of the operation position of the operation unit as detected by the position detection device. The driving force limitation process is prohibited when it is determined that the vehicle is traveling and that the operation unit is not operated to any of the operation positions.
摘要:
A legged robot includes: a body; a leg portion; a foot portion; a falling direction detection unit that detects a falling direction of the body; a control unit; and a distance detection unit that detects a distance between a sole of the foot portion and a road surface. The distance detection unit includes at least three distance sensors provided on the sole, and the control unit includes distance sensor selecting means for selecting a distance sensor and gait data correcting means for correcting gait data based on a detection signal from the distance sensor selected by the distance sensor selecting means. The distance sensor selecting means selects three distance sensors among the distance sensors based on a detection result of the falling direction detection unit.