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A/D converter that is implemented using only digital circuit components
and digital signal processing
A TAD (time analog/digital) type of A/D converter has plural series-connected delay units each producing a delay in accordance with the level of a converter...
Clamp circuit device
In a clamp circuit device, reference voltages are set up by a series circuit of an FET, a resistor and an FET. Gate potentials of FETs are set up by performing...
Transmission device for transmitting a signal through a transmission line
between circuits blocks having...
A transmission device includes a transmission line composed of first and second transmission lines. A first circuit block outputs a non-inverted transmission...
Motor controller and steering device
A motor controller including an inverter including plural switching elements that are subjected to PWM control to generate sine waves of plural phases, a motor...
Wiper controller for controlling windshield wiper
A wiper controller includes: a sensor for detecting a waterdrop on a windshield; a wiper for wiping the windshield; and control means for controlling operation...
Molded semiconductor device with heat conducting members
A power element package includes a semiconductor chip, radiating members, a mold resin member, a lead terminal for control signals, and lead terminals for large...
Aluminum alloy heat exchanger and method of producing the same
An aluminum alloy heat exchanger having a tube composed of a thin aluminum alloy clad material, wherein, in the clad material, one face of an aluminum alloy core...
Control device for automatic transmission
A position sensor for an automatic transmission has multiple switches, each of which generates "ON" or "OFF" signal depending on a selected position of a shift...
Organic electroluminescent element and process for its manufacture
An organic EL element is formed having a crystalline CuPc film as a positive hole injection layer and a positive hole transport layer, a luminescent layer, an...
Air conditioner for vehicle
In an air conditioner for a vehicle having first and second air conditioning zones positioned at right and left sides of a front seat in a vehicle compartment...
Vehicle air conditioner
A vehicle air conditioner has an IR sensor that detects a temperature of air inside a vehicle compartment. The IR sensor is disposed on an instrument panel so...
Fuel vapor processing apparatus
A fuel vapor processing apparatus includes a canister, a purge passage, a detection passage including an atmosphere passage and a restrictor, a passage changing...
A ring-shaped connecting portion is formed on a seat surface side of a pipe connector. The connecting portion is tapered so that thickness thereof gradually...
Intake manifold for internal combustion engine
An intake manifold is provided to an internal combustion engine including a first and second cylinder heads each having an intake port. The first and second...
Actuator for valve lift controller
An actuator for a valve lift controller comprises a case forming a first and second spaces therein. The first space is supplied with lubricating fluid. The...
Torque sensor for detecting a shaft torque
A first shaft and a second shaft are connected coaxially. A torsion bar converts a torque applied between two shafts into a torsion displacement. A multipolar...
An ultrasonic sensor includes an ultrasonic microphone having a circular vibration surface, a substantially cylindrical cushion unit where the ultrasonic...
Method for manufacturing a motor
A method of manufacturing a motor that includes a permanent magnet unit disposed at a circumference for providing a plurality of magnetic poles, and a rotor...
Automatic front light optical axis direction adjusting system for vehicles
The directions of optical axes of headlights of a vehicle are adjusted based on a steering angle by switching filters of different response speed...
Apparatus for detecting rollover of vehicle and apparatus for activating
occupant protective device
An apparatus for detecting a rollover of a vehicle is provided. The apparatus comprises a detector, memory unit, calculator, and rollover determination unit. The...
Remote monitoring system and method
A smart key carried with a user is provided with switches for monitoring a vehicle in remote places, such as a departure-time monitor switch, a return-time...
Structure for connecting optical fiber
An optical fiber is optically coupled to a light-receiving/emitting element contained in an interface box. The coupling structure is composed of a cylindrical...
Cooler for cooling electric part
A cooler cools a plurality of electric parts from both sides thereof. The cooler includes a plurality of cooling units including a pair of cooling tubes for...
Vehicular radar system
A radar system of a vehicle has a zero-cross comparator, an integrator, and a sensor. The comparator compares a light reception signal output from each one of...
High frequency module and array of the same
A high frequency module for converting a high frequency wave in a free space to a high frequency wave in a planar waveguide includes two metal plates, a...
Failure monitor for motor drive control system
A failure monitor designed to monitor a failure in operation of a motor drive control system. The system works to drive a motor-driven member through an output...
Tire condition detecting system and method
A tire condition detecting system has transmitters and a receiver. The transmitter is installed in a plurality of wheels and the receiver is installed in a...
Overcurrent limiting controller
A semiconductor device controller includes a current supply control unit for controlling a conduction state of a semiconductor device connected to a load in...
Apparatus for estimating air-fuel ratios and apparatus for controlling
air-fuel ratios of individual cylinders...
An individual-cylinder air-fuel ratio estimation model is designed so as to consider the mixing of gases exhausted from adjacent combustion cylinders, and a...
Ignition device for internal combustion engine
An ignition device for an internal combustion engine has a spark plug, an ignition coil, a housing and a mounting portion. The spark plug is for discharging a...
Engine rotation condition detecting system and engine control method
An internal combustion engine has a variable valve timing apparatus including a driving motor between a crankshaft and a camshaft. The driving motor rotates...
Liquid-cooling device for internal combustion engine
A head cooling path diverges from a backflow path at a position between a radiator and a thermostat and is connected with a cylinder head of an engine by...
Physical quantity sensor having spring
A physical quantity sensor detects physical quantity. The sensor includes a plurality of springs, which have different spring constants, respectively. The sensor...
Misfire detector for internal combustion engines
Air fuel ratios of exhaust gases of respective cylinders are estimated based on a detection value of an air fuel ratio sensor mounted in an exhaust-collector....
Knock detecting apparatus for internal combustion engine
A waveform knock signal detected by a knock sensor is filtered through a band-pass filter. The detected wave form signal is compared with an ideal reference...
Exhaust gas purification system of internal combustion engine
A diesel oxidation catalyst is disposed upstream of a diesel particulate filter (a DPF) disposed in an exhaust passage of a diesel engine. An electronic control...
Semiconductor module mounting structure, a cardlike semiconductor module,
and heat receiving members bonded to...
A semiconductor module has metallic radiator plates provided at central regions of principal surfaces of a sealing resin so as to expose from these principal...
Vehicular radar system
An integrator of a vehicular radar system has multiple switches and multiple capacitors, which are connected with the switches, for each one of photoreceptive...
Liquid crystal display apparatus
A liquid crystal display apparatus includes a liquid crystal display panel, a backlight source behind the liquid crystal display panel, and an optical filter...
A display panel includes a first halftone dot layer and a second halftone dot layer. The first and the second layers are formed with halftone dots printed at...
Tire condition detecting device, tire condition monitoring system, and
method of attaching tire condition...
A tire condition detecting device 1 and an attaching method thereof, and a tire condition monitoring system, capable of preventing the attenuation caused by...
Portable transmitter contained in a hard-to-open case
An ID code is wirelessly sent to a device, such as a keyless-entry system or a keyless-starter system mounted on an automobile, from a portable transmitter....
Sequentially joined-segment coil for rotary electrical machine
A polyphase sequentially joined-segment coil of a rotary electric machine and a production method thereof are provided. The coil is made up of a plurality of...
Compact pressure sensor with high corrosion resistance and high accuracy
A pressure sensor includes a sensor chip and a circuit chip. The sensor chip, which is configured to generate an electrical signal representative of a pressure...
Method for manufacturing semiconductor device having trench in silicon
carbide semiconductor substrate
A method for manufacturing a silicon carbide semiconductor device includes the steps of: forming a trench mask on an upper surface of a semiconductor substrate;...
Driving condition control method and system
In a driving condition control system, a sensing unit is configured to sense a first physical quantity indicative of a rotation of the first rotatable axle...
Optical information reading apparatus and optical information reading
A control circuit performs capturing of pixel signals along each scanning line when a high-speed capturing mode is selected, switches the capturing mode to a...
Valve timing adjusting apparatus
A valve timing adjusting apparatus for an engine comprises a housing unit and a vane rotor rotatably housed in the housing unit. The housing unit comprises a...
Ultrasonic sensor assembly
Engaging portions of an ultrasonic sensor apparatus are engaged with engaging portions of a holding member at a first angular position of the ultrasonic sensor...
Manufacturing method for a printed circuit board
A conductor pattern is formed on a resin film which is made of a thermoplastic resin. Each single-sided conductor pattern film has via-holes filled with an...