Abstract: A first connector is connected to a second connector. The first connector is provided with a first frame body, first signal terminals, and a grounded part. The first frame body has a first opening. The second connector is inserted in the first frame body through the first opening. The first signal terminals are disposed inside the first frame body so as to be brought into connection with second signal terminals that are provided to the second connector. The grounded part is disposed in such a manner as to come into contact with the second signal terminals after initiation of insertion of the second connector into the first frame body and before establishment of a connection state where, upon completion of the insertion, the first signal terminals and the second signal terminals come to be connected respectively, and also to separate away from the second signal terminals in the connection state.

Abstract: An electric connector (100) is provided with a housing (110), an actuator (120), and a signal terminal (130). A signal transmission member is connected to the electric connector (100). The actuator (120) is mounted to the housing (110). The signal terminal (130) is provided to the housing (110) and is electrically connected to wiring of the signal transmission member. The actuator (20) comes into contact with the signal terminal (130) when the actuator (120) is moved from a first position where the signal transmission member is affixed while the wiring of the signal transmission member is connected to the signal terminal, to a predetermined second position where the signal transmission member is released from the affixation.

Abstract: A display apparatus includes a first substrate unit, a second substrate unit, and a display panel. The first substrate unit is a substrate unit on which a driver circuit is mounted. The driver circuit outputs multiple driver output signals. The second substrate unit includes branching lines, through which one driver output signal is caused to branch to multiple branching signals, for each of the driver output signals. The display panel receives the branching signals.

Abstract: Provided is a video signal line driver circuit capable of displaying a video with a high viewing quality even when gradation voltages of the same value are simultaneously selected as analog video signals. A voltage ladder 87 of a source driver 50 has formed therein gradation voltage supplement lines 91 extending to the outside of the source driver 50 from output terminals for outputting generated gradation voltages. The gradation voltage supplement lines 91 are grounded outside the source driver 50 via voltage supplement capacitors 90. Accordingly, even when gradation voltages of the same value are simultaneously selected as analog video signals, the voltage supplement capacitors 90 provide necessary current supplement to the voltage ladder 87, thereby inhibiting potential drop across the output terminals for outputting gradation voltages.

Abstract: In a display device in which source lines on a display panel are driven from both ends, when a connection confirmation signal (S2) output from a source board (13) indicates abnormality, a power supply circuit (18) on a control board (12) stops outputting a power supply voltage (Va) used when source drivers drive the source lines. The control board (12) outputs a high-level connection confirmation signal (S1) to the source board (13), the source board (13) outputs the connection confirmation signal (S1) to the control board (12) as the connection confirmation signal (S2), and the control board (12) pulls down the connection confirmation signal (S2) to a low level. With this, it is possible to prevent serious damage from occurring even when a connection failure or the like occurs.

Abstract: Provided is a video signal line driver circuit capable of displaying a video with a high viewing quality even when gradation voltages of the same value are simultaneously selected as analog video signals. A voltage ladder 87 of a source driver 50 has formed therein gradation voltage supplement lines 91 extending to the outside of the source driver 50 from output terminals for outputting generated gradation voltages. The gradation voltage supplement lines 91 are grounded outside the source driver 50 via voltage supplement capacitors 90. Accordingly, even when gradation voltages of the same value are simultaneously selected as analog video signals, the voltage supplement capacitors 90 provide necessary current supplement to the voltage ladder 87, thereby inhibiting potential drop across the output terminals for outputting gradation voltages.

Abstract: A still row discrimination unit 15 discriminates whether data of one row included in a video signal D1 is a still row. A scanning line drive circuit 13 applies a non-selection voltage to scanning lines GL1 to GLm corresponding to the still row. A data line drive circuit 14 does not apply data voltages to data lines SL1 to SLn when discriminated as the still row. A similar structure may be applied to a display device in which pixel circuits are divided into a plurality of blocks in a row direction and the pixel circuits in a same block among the pixel circuits in each row are connected to each scanning line. With this, it is possible to provide a display device which can reduce power consumption even when a part of a display image changes.

Abstract: A still row discrimination unit 15 discriminates whether data of one row included in a video signal D1 is a still row. A scanning line drive circuit 13 applies a non-selection voltage to scanning lines GL1 to GLm corresponding to the still row. A data line drive circuit 14 does not apply data voltages to data lines SL1 to SLn when discriminated as the still row. A similar structure may be applied to a display device in which pixel circuits are divided into a plurality of blocks in a row direction and the pixel circuits in a same block among the pixel circuits in each row are connected to each scanning line. With this, it is possible to provide a display device which can reduce power consumption even when a part of a display image changes.

Abstract: In a display device in which source lines on a display panel are driven from both ends, when a connection confirmation signal (S2) output from a source board (13) indicates abnormality, a power supply circuit (18) on a control board (12) stops outputting a power supply voltage (Va) used when source drivers drive the source lines. The control board (12) outputs a high-level connection confirmation signal (S1) to the source board (13), the source board (13) outputs the connection confirmation signal (S1) to the control board (12) as the connection confirmation signal (S2), and the control board (12) pulls down the connection confirmation signal (S2) to a low level. With this, it is possible to prevent serious damage from occurring even when a connection failure or the like occurs.

Abstract: Provided is a component-mounting flexible board allowing mounted driver circuits to share the same display panel or circuit board regardless of the number of driver circuits. Of two source drivers 31 and 32 mounted in an SOF package 30, the source driver 31 has output wiring patterns respectively pressure-bonded to connection terminals S1 to S960 included in a first connection terminal group 11 of a liquid crystal panel 10. The source driver 32 has output wiring patterns respectively pressure-bonded to connection terminals S1 to S960 included in a second connection terminal group 12 of the liquid crystal panel 10. Dummy wiring patterns 36 are pressure-bonded to two dummy connection terminals 18 formed in a spared space between the first connection terminal group 11 and the second connection terminal group 12 of the liquid crystal panel 10.

Abstract: Provided is a display device allowing a plurality of pieces of correction data for correcting uneven display which occurs on a display panel to be respectively written to a plurality of memory devices without error. In the case where correction. data writing tools (80a, 80b) are connected to connectors (24a, 24b), even if the tools are mistakenly connected to the wrong connectors, a PC (90) determines whether a SEL signal provided by each connector (24a, 24b) is at H- or L-level. As a result, the PC (90) can identify the connectors (24a, 24b) to which the correction data writing tools (80a, 80b) are connected, and write correction data that should be written, to respective memory devices (50a, 50b) without error.

Abstract: A multiple ranging apparatus has a light emitting section constituted by a plurality of aligned LEDs which emit light rays of wavelengths different from one another, and a light receiving section constituted by a plurality of aligned PSD parts which have wavelength sensitivities corresponding to the different wavelengths of the light rays emitted from the LEDs. Thus, even when ranging of respective points is simultaneously measured in multiple ranging measurement, it is possible to identify which LED the light is emitted from, and therefore, to simultaneously measure the distances of two or more points.

Abstract: A reflection encoder is disclosed having a light emitting element in a light receiving element that are separated by a light shielding body that prevents unwanted light from entering the light receiving element. In variations of the invention, the light shielding body may be integrally formed with a mold resin portion that holds the light emitting element and light receiving element, formed by a sheet or plate, or formed using an opaque liquid resin that is poured between transparent resin bodies that encapsulate the light emitter and receiver. In operation, light radiated from the light emitting element is reflected by a code wheel and then received by a light receiving element. Other variations include varying the height at which the light receiving and detecting elements are disposed relative to the code wheel and tilting these elements towards each other so as to increase light efficiency.

Abstract: In an embodiment of a reflective encoder, the reflective encoder is provided with a light emitting portion having a light emitting element capable of irradiating light and a light emitting side transparent resin body for covering and protecting the light emitting element, a light detecting portion having a light receiving element for detecting light that is irradiated from the light emitting element and that is reflected by a reflecting region of a code wheel, and a light receiving side transparent resin body for covering and protecting the light receiving element, and a light shielding body arranged between the light emitting side transparent resin body and the light receiving side transparent resin body for separating the light emitting portion and the light detecting portion.

Abstract: A multiple ranging apparatus has a light emitting section constituted by a plurality of aligned LEDs which emit light rays of wavelengths different from one another, and a light receiving section constituted by a plurality of aligned PSD parts which have wavelength sensitivities corresponding to the different wavelengths of the light rays emitted from the LEDs. Thus, even when ranging of respective points is simultaneously measured in multiple ranging measurement, it is possible to identify which LED the light is emitted from, and therefore, to simultaneously measure the distances of two or more points.

Abstract: A start-fuel supply device in an internal combustion engine for a portable equipment comprising a start-fuel primer pump rotatively coupled to a starter motor of the engine, a fuel metering device for receiving a charge of fuel from a metering chamber of a carburetor during the reverse rotation of the start-fuel primer pump, and a fuel nozzle for injecting fuel from the fuel metering device to an air intake passage of the carburetor during the normal rotation of the fuel-start primer pump. A passage portion between the fuel metering device and the start-fuel primer pump is connected to a fuel reservoir through a by-pass passage provided with a check valve which allows a flow from the fuel metering device to the fuel reservoir.

Abstract: An apparatus for supplying a start-fuel to an internal combustion engine for a portable type machine such as a chain saw or brush cutter which has an electric battery for use in starting. An electrically driven primer pump is connected to the metering chamber of a diaphragm carburetor and can direct fuel from the chamber to an accumulator which is connected to a fuel tank through a relief valve and also to a fuel jet in the venturi entrance of the carburetor. When the primer pump is actuated by a key switch, as the engine is started, fuel in the metering chamber is moved to the accumulator and fuel is replenished from the fuel tank. Also, an electromagnetic valve opens the accumulator to the fuel jet to furnish start-fuel to the venturi.

Abstract: An apparatus for supplying a start-fuel to an internal combustion engine for a portable type machine such as a chain saw or brush cutter which has an electric battery for use in starting. An electrically driven reversible pump is used to draw fuel from a diaphragm carburetor metering chamber into a fuel reservoir and also to draw fuel from a fuel tank into the metering chamber. Under cold-start conditions, the pump is reversed and fuel from the reservoir is directed to a jet at the entrance of the carburetor venturi passage to provide a rich mixture to assist in starting.

Abstract: An anti-overrunning system for an internal combustion engine having a throttle valve in a carburetor in which an actuator for the throttle valve is responsive to pump pressure to move the valve to a closing position. A vibrating pump responsive to engine vibration is located to direct output control pressure to the actuator. A control valve between the pump and the actuator normally blocks pressure to the actuator but is responsive to air pressure from an engine cooling fan such that, upon overrun conditions, the fan pressure will actuate the control valve to connect the pump to the actuator to cause the throttle valve to move toward a closing position.

Abstract: An anti-overrunning device for an internal combustion engine utilizing a carburetor with a throttle valve and a vibrating pump for generating pressure by vibrations of the engine. An actuator is provided for the throttle valve to move it to a closing position, and a control valve is used to control flow of pressure from the vibrating pump to the actuator. A generator driven by the engine provides electromotive force to actuate the control valve.