Abstract: There is provided an environment adaptive type hearing aid capable of reducing the erroneous estimation of an ambient environment or the unnecessary changeover of a hearing aid process.

Abstract: A sampling clock generator generates a sampling clock based on a reference clock and an internal clock. An internal clock generator causes, during a period in which the sampling clock is at a second voltage level, the internal clock to transition from a first voltage level to a second voltage level when a first comparison signal and a second comparison signal transition to voltage levels different from each other, and the internal clock to transition from the second voltage level to the first voltage level after a variable delay time has elapsed when the first and second comparison signals transition to a same voltage level. A delay controller controls the variable delay time in the internal clock generator so that the ratio of a period in which the sampling clock is at a first voltage level to a period of the reference clock approaches a predetermined ratio.

Abstract: A controller controls first and second supply switches so that, during a sampling period, a ground voltage is supplied to n first up-capacitors and n second up-capacitors while a power supply voltage is supplied to n first down-capacitors and n second down-capacitors. The controller also controls the first and second supply switches based on the result of comparison by a comparator during each of n bit determination periods so that a first analog voltage at a first sampling node and a second analog voltage at a second sampling node gradually approach each other.

Abstract: There is provided an environment adaptive type hearing aid capable of reducing the erroneous estimation of an ambient environment or the unnecessary changeover of a hearing aid process.

Abstract: A testing apparatus of IC devices, comprising: a loader portion (10) for mounting a predetermined number of the IC devices (5) on each of test boards (1) transferred on a horizontal reference plane (H); a pre-heat portion (11) for receiving the test boards transferred on the horizontal plane from the loader portion and so as to bringing the IC devices mounted thereon into a predetermined temperature condition; a testing/measuring portion (12) having test heads (18) and for performing testing/measuring on the IC devices mounted on the test boards; a defroster portion (13) for receiving the test boards transferred from the testing/measuring portion and for bringing the IC devices completed with testing/measuring thereon into other predetermined temperature condition; and an unloader portion (14) for receiving the test boards transferred on the horizontal reference plane (H) from the defroster portion so as to unload the IC devices from the test boards depending on test results obtained in the testing/measuring

Abstract: An air conditioning system for vehicles includes a restriction control device that reduces the consumptive power of the air conditioning system by reducing the cooling ability of the air conditioning system when a cooling load of an interior of the vehicle has increased over a predetermined level, and when predetermined conditions are satisfied. In the system of the present invention, a water temperature sensor or a switch for detecting the opening of a roof window or a double sliding window is not necessary. In the present invention, under certain predetermined conditions, the power to an air conditioner may be appropriately restricted and the amount of heat radiation at the condenser may also be appropriately restricted. Consequently, the control may reduce waste power to prolong the life of equipment, and which may achieve an improved and comfortable air conditioning state, even when a roof window or a double sliding window is open.

Abstract: In a system and method for conditioning air in a vehicle, it is determined whether an inside air temperature detected by an inside air temperature sensor is stable, an outside air temperature is estimated based on the inside air temperature only when the inside air temperature is stable, a target conditioned air temperature is calculated using an estimated outside air temperature as well as the estimation of outside air temperature is repeated, and the estimated outside air temperature used for the calculation of the target conditioned air temperature is renewed only when the estimated outside air temperature is different from a prior estimated outside air temperature by a value more than a predetermined value. The outside air temperature is adequately estimated without providing an outside air temperature sensor. Consequently, a desirable air conditioning for vehicles may be performed simply and inexpensively.