In a fuel injection system, wherein fuel in a fuel tank is pressurized by a fuel pump and the pressurized fuel is fed to a fuel flow control apparatus operating to meter the fuel flow according to the Venturi negative pressure occuring at the Venturi portion in an engine suction system, and the fuel is supplied to the engine in proportion to the suction air quantity, a fuel pressure regulator for controlling the fuel pressure is provided between the fuel pump and the fuel flow control apparatus....

An optical transmission device for interconnecting an optical full duplex transmission line and a half duplex transmission line. When a start bit of a data block of an electrical signal received from the half duplex transmission line is detected, a maintaining signal to maintain the same transmission direction is generated during which the data block can be transmitted. An optical signal is received from the optical full duplex transmission line and converted into an electrical signal. Similarly...

An electric power generating equipment (10) is provided between an internal combustion engine (2) and a power transmission device (3), and an electric motor (9) is disposed at an area of the power transmission device. An output shaft (9a) of the electric motor (9) is disposed coaxially to any of rotary shafts of the power transmission device (3).

A motor driving apparatus includes a position detector for detecting a rotational position of a motor to output the detection result as a position signal, a frequency comparator for comparing frequencies of continuous periods in the position signal and detecting a reversed state in which the frequency of the signal in the later period is higher than the frequency of the signal in the earlier period, a brake change over unit for selecting a reverse torque brake control which applies reverse torqu...

In a motor and a disk drive apparatus in accordance with the present invention, a position detecting part 30 comprises a detection signal switching circuit 39A, a noise elimination circuit 38 and a detection circuit 39B, and the detection signal switching circuit 39A is configured to output an inverted detection signal obtained by logically inverting a detection signal until the rotation speed reaches a predetermined rotation speed after the beginning of starting or until a position detection pu...

A solid-state image sensor comprises a photodiode which is provided in a p-type substrate or a p-type well and composed of a first n-type region for storing photoelectrically converted signal charges, a gate electrode provided above the substrate or well so as to be adjacent to one end of the photodiode, and a n-type drain provided at the surface of the substrate or well opposite to the photodiode, with the gate electrode interviewing therebetween. There is provided a second n-type region which ...

A metal vapor discharge lamp has a small arc tube of a single end type. The maximum and minimum thicknesses of the wall of the arc tube and the ratio of the minimum thickness to the maximum thickness are set to the values in predetermined ranges. The set thicknesses prevents breakage of the arc tube and deterioration of the lamp characteristics.

In an amplifier-type solid-state image sensor device, each unit cell comprises a photoconverter and a signal scanning circuit in an image sensing region on a semiconductor substrate, a metal film has an opening region for defining regions where light is radiated in the photoconverters of the unit cells, and a center position of the opening region of the metal film is displaced to the side of the center of the image sensing region with respect to a center portion of the photoconverter, so that th...

A waterproof camera to which an interchangeable lens unit having a waterproof construction is mounted. The waterproof camera has a lens mount provided in a camera body and to which the interchangeable lens unit is removably mounted, a ring-shaped flange provided in the lens mount and which positions the interchangeable lens unit relative to the camera camera body, an engaging member provided at an outer circumference of the ring-shaped flange and which engages with the outer circumference of one...

An ion implant apparatus which forms ions from an ion source into an ion beam to implant the ions into a target to be ion-implanted through an ion beam introduction tube. The ion implant apparatus comprises: radiation means for radiating an electron beam, the radiating means fixed on the ion beam introduction tube; and a target for being radiated by an electron beam, said target reflecting the electron beam to generate a reflectance beam, the electron beam causing a secondary electron beam to be...