Abstract: A driving device for a plurality of sensors or a plurality of actuators comprises a measuring unit for measuring currents flowing through the sensors or the actuators, and a switching arrangement for selectively energizing the sensors or the actuators. The driving device measures a current flowing through each of the sensors or the actuators by means of a single measuring unit, which is time shared.

Abstract: In a method of making a gas burner device, there are steps of symmetrically blanking a first metal plate and deforming it so as to form a first intermediate blank having a bulged portion, bending the first intermediate blank at a symmetrical center thereof to provide a first burner flow path with the bulged portion, and joining end portions of the intermediate blank to form a first burner, blanking a second metal plate and symmetrically deforming it so as to form a second intermediate blank having a bulged portion, bending the second intermediate blank at a symmetrical center thereof to provide a cover plate; and encasing at least an upper end of the first burner with the cover plate to form a slit-like sleeve first hole between the first burner and the cover plate, and forming a second burner flow path communication with a second burner suction hole and the slit-like sleeve fire hole so as to provide a second burner.

Abstract: A drive through wireless order taking system includes a base station, and a slave station being connectable with the base station by radio and being movable into and out of a talk lock state. The base station includes a device for transmitting a talk lock release signal to the slave station. The slave station includes a device for moving the slave station out of the talk lock state in response to the talk lock release signal transmitted from the base station.

Abstract: In a gas burner device having a first burner having a first fire hole formed therein and a second burner having a second fire hole arranged therein, the fire hole is disposed around the first fire hole of a first burner to straddle the first fire hole. The second burner has a common suction hole through which a fuel gas and primary air are supplied to the second fire hole independent of fuel gas and primary air supplied to the first burner.

Abstract: In a burner plate having a multitude of fire holes each piercing through its thickness so as to effect a primary burning thereon with a high heat capacity, it is adapted to continuously differentiate a time period required for an air-fuel mixture gas to pass through the fire holes of the burner plate from a central portion toward an outer periphery of the burner plate.

Abstract: A method of fabricating a semiconductor device having an epitaxial layer of a group III-V semiconductor material provided on an underlying crystal layer with a lattice matching therewith, the semiconductor material being doped to the p-type by addition of beryllium and selected from a group including gallium aluminum arsenide and indium gallium aluminum arsenide, in which the method comprises steps of growing the epitaxial layer on the underlying crystal layer, adding beryllium to a concentration level of about 5.times.10.sup.19 atoms/cm.sup.3 to about 5.times.10.sup.20 atoms/cm.sup.3 to the semiconductor material, and adding indium by an amount of about 0.5 mole percent to about 8 mole percent with respect to group III elements in the semiconductor material.

Abstract: A non-linear semiconductor optical device comprises a first quantum well layer having discrete quantum levels of carriers including a first quantum level for electrons and a second quantum level for holes with an energy gap corresponding to a wavelength of an incident optical beam; a pair of barrier layers provided above and below the first quantum well layer in contact therewith with a thickness that allows a tunneling of the carriers therethrough for defining a potential well in correspondence to the first quantum well layer; and a second quantum well layer provided in contact with the barrier layers for accepting the carriers that have been created in the first quantum well layer upon excitation by the incident optical beam and escaped therefrom by tunneling through the barrier layer. The second quantum well layer comprises a material that has a conduction band including therein a .GAMMA. valley and an X valley, wherein said .GAMMA.

Abstract: In an optosemiconductor device including a superlattice configuration (TBQ) of first and second quantum well layers and a potential barrier therebetween, photo-excited carriers are formed in the first quantum well layer and are tunnelled through the potential barrier toward the second quantum well layer, so that the tunneled carriers are accumulated in the second quantum well layer. An electric field is applied to the superlattice configuration to expel the tunneled carriers from the second quantum well layer.

Abstract: A vehicle control apparatus is provided with a plurality of unit controllers to individually provide control to different control items constructed such that mutual communication of data for diagnosis is effected between the unit controllers, and when one of the unit controllers comes to be abnormal, the other or others change their control mode so as to lead the vehicle to safety, based on the data from the one unit controller having come to be abnormal.

Abstract: An engine control apparatus in which a basic fuel injection pulse width is calculated based on various data from various sensors provided for an engine, the basic fuel injection pulse width is corrected by various factors determined based on engine conditions, and a fuel injector provided for the engine is controlled based on the corrected fuel injection pulse width, is characterized in that a period of time from a time the engine is controlled to accelerate whereby an air-fuel ratio changes into a lean state until a time the air-fuel ratio changes into a rich state is detected, and a fuel increment for the acceleration is corrected, based on the detected period of time.

Abstract: An in-engine deposit detection apparatus for an engine control system is disclosed, comprising a sensor for detecting the output air-fuel ratio of the exhaust gas, a device for controlling the fuel supply amount according to the output air-fuel ratio from the sensor, acceleration detector for detecting a time point when an acceleration command is given the engine, a device for measuring a value based on the time length from a command time point detected by the acceleration detector to a time point that the sensor detects the shift of the output air-fuel ratio to rich side, a device for giving a reference value defining a limit of a normal range of the measurement obtained on the basis of the time length from the command time point detected by the acceleration detection means to the time point when the sensor detects that the output air-fuel ratio has shifted to rich side, and a device for comparing the measurement from the measuring means with a reference and deciding that there exists a deposit having an adv

Abstract: An engine control apparatus comprises a plurality of sensors for detecting the operation state of an engine, means for calculating, on the basis of signals produced from the sensors, a correction amount which corrects a predetermined controllable quantity, means for calculating a learned correction amount by averaging values of the correction amount by a reference occurrence frequency, means for calculating, under a predetermined condition, the learned correction amount by averaging values of the correction amount by an occurrence frequency which is smaller than the reference occurrence frequency, and means for correcting the controllable quantity in accordance with the correction amount and the learned correction amount.