Abstract: A magnitude of current that does not cause electric power generation is supplied to a field winding of a movable element, and an induced voltage generated in a armature winding of a stationary element is measured. A position of the movable element is determined from the measured induced voltage. In addition to the thus-determined position of the movable element, a position of the movable element measured on a different basis is used to measure an error regarding the position of the movable element.

Abstract: In an image-sensing apparatus, shading data obtained when a sensor 1 is irradiated with uniform light is compressed by a COM 6 and is then stored in a memory 3. During image sensing, the data stored in the memory 3 is decompressed back into the shading data by an EXP 7. By a COR 4, this shading data is subtracted from the image data obtained from the sensor 1, and thereby the unevenness in the outputs from the individual pixels of the sensor 1 is corrected.

Abstract: Power from a high voltage battery (10) (for example 36V) is supplied through an inverter (12) to a motor generator (14). A low voltage battery (20) (for example 12V) is connected through a reactor (18) to the neutral point of the motor generator (14). A voltage ratio of the low voltage battery (20) to the high voltage battery (10) is preferably from 1:2 to 1:4. In order to set the neutral point voltage to a desired charging voltage into the low voltage battery (20), the inverter (12) is controlled so as to follow a current distortion phenomenon. In this way, in a dual-power source system with a voltage ratio of a low voltage battery (20) to a high voltage battery (10) between 1:2 and 1:4, voltage switching means for use in charging a charge voltage of a high voltage side into a low voltage source can be implemented at low cost.

Abstract: A vehicle equipped with a brake booster that uses the negative pressure in an intake pipe of an internal combustion engine includes an automatic stop-start apparatus that performs an automatic stop-start control of the engine while securing a sufficient brake booster negative pressure in accordance with changes in the atmospheric pressure. The apparatus detects the pressure in the brake booster. If the detected pressure exceeds a predetermined reference value during the automatically stopped state of the engine, the apparatus outputs warning information or automatically restarts the engine. The reference value is changed in accordance with the magnitude of the atmospheric pressure around the vehicle.

Abstract: An automatic engine stop control system for a vehicle in which: an engine is activated when fed with a fuel; and an action mechanism has an action content influenced by a rotating state of the engine; and the fuel feed to the engine is stopped when predetermined conditions are satisfied during the running of the vehicle comprises: a rotating state decider for deciding that the engine is forced to rotate by a running inertia force owned by the vehicle while the vehicle is coasting; an action state decider for deciding the action content of the action mechanism in the state where the engine is forced to rotate by the running inertia force of the vehicle; and an automatic stop inhibitor for inhibiting the stop of the fuel feed to the engine when it is decided by the action state decider means that the action content of the action mechanism is insufficient.

Abstract: In an image-sensing apparatus, shading data obtained when a sensor 1 is irradiated with uniform light is compressed by a COM 6 and is then stored in a memory 3. During image sensing, the data stored in the memory 3 is decompressed back into the shading data by an EXP 7. By a COR 4, this shading data is subtracted from the image data obtained from the sensor 1, and thereby the unevenness in the outputs from the individual pixels of the sensor 1 is corrected.

Abstract: An image sensing device includes three photoelectric signal generators, each of which generates a photoelectric signal proportional to an intensity of incident light, and three converters which are connected with the photoelectric current generators, respectively. Each of the converters generates an analog signal which is logarithmically proportional to the photoelectric signal. A direct-current component of the analog signal, generated by each of the converters, is adjusted to perform a white balance adjustment before an A/D conversion.

Abstract: A method and an apparatus for driving and controlling a synchronous motor using permanent magnets as its field system are herein disclosed. When a rotational speed of the synchronous motor using the permanent magnets as the field system is more than a base rotational speed, a current condition computing section computes a field weakening reference current in accordance with a battery voltage, a reference torque and a rotational speed. An inverter performs the field weakening control of the the synchronous motor using the permanent magnets as the field system in accordance with the field weakening reference current sent from the current condition computing section to prevent the deterioration of efficiency and the deficiency of output due to the excessive or insufficient field weakening current. The current condition computing section determines optimum reference current by the use of a converged battery voltage, when the battery voltage is converged to a constant value after initial control.

Abstract: A solid-state image sensing apparatus includes a solid state image sensing device having a characteristic that an output voltage thereof natural-logarithmically varies in accordance with light reception amount. An image sensing output signal is obtained with respect to each pixel when uniform light is irradiated to the solid-state image sensing device. The difference is then calculated between an image sensing output signal obtained with respect to each pixel in actual sensing and an image sensing output signal with respect to a pixel corresponding thereto which signal is stored, to form an image signal.