Abstract:
A center shaft (2a) for holding a key top (1), and springs (2b) are provided in a casing (2) of a small-sized electronic equipment such as an inter-call receiver. The springs (2b) are provided so as to extend from the peripheral portions toward the center shaft (2a), and holes are formed in the springs (2b) respectively. The key top (1) is provided with a stopper nail (1a), first protrusions 1b and second protrusions 1c. The protrusions (1c) of the key top (1) for pushing switches (3) are inserted through the holes of the springs (2b) respectively, and the stopper nail (1a) of the key top (1) is engaged with the center shaft (2a) acting as a fulcrum during the seesawing operation of the key top (1). Thus, the key top (1) is held in a stable manner. The existence of the center shaft (2a) prevents simultaneous depression of the two switches (3).
Abstract:
A clock regenerator for a binary input which comprises a shift register having successively coupled first stages, a single predetermined stage, and second stages. A frequency divider device responsive to a local oscillation and with a controllable ratio produces timing pulses of a timing period equal to that prescribed number of clock periods which may be unity. Each timing pulse presets a binary signal in the single predetermined stage. The signal is shifted, when a transition occurs in binary values of the input signal within a predetermined interval defined by each timing period. The signal is shifted into the first and second stages if the transition occurs during a leading and a trailing half of each timing period, respectively, the timing pulse thus leading and lagging behind the input signal. The shifted binary signal controls the frequency division ratio to phase-synchronize the timing pulses with the input signal.
Abstract:
An image forming apparatus includes: a communication interface to communicate with a plurality of control terminals operated by different users; and circuitry to: authenticate the plurality of control terminals in an order that an authentication request is received from the control terminal; send an operational screen to each one of the plurality of control terminals that have been successfully authenticated for display at each control terminal, the operational screen to accept a process request for requesting the image forming apparatus to execute an image forming process; receive a plurality of process requests from the plurality of control terminals that have been authenticated in an order that the process request is accepted at the control terminal; and control an image forming device to execute a plurality of image forming processes according to the plurality of process requests in the order that the process request is accepted at the control terminal.
Abstract:
An internal combustion engine can comprise a crankcase, and a crankshaft rotatably supported in the crankcase. The crankshaft includes a drive sprocket attached thereto. A cam chain engages the drive sprocket, and a cam chain chamber houses at least a part of the drive sprocket and cam chain therein. The cam chain chamber is configured to pool oil in a lower portion thereof. A balancer is coupled to the crankshaft and is configured to be rotated by rotational power transmitted from the crankshaft. The balancer is also disposed within the cam chain chamber, and is configured to splash oil pooled in the cam chain chamber during the rotation thereof. The engine also comprises a wall portion disposed in the cam chain chamber. The wall portion is configured to cover an upper portion of the balancer, and is disposed adjacent to a periphery of the balancer.
Abstract:
The present invention provides a polarization mode dispersion compensator comprising: a compensating portion which includes a first polarization controller which performs polarization conversion on light propagating along an optical transmission line and a DGD (Differential Group Delay) emulator which adds a DGD to the light which is polarization-converted by said first polarization controller, said compensating portion being for compensating polarization mode dispersion which occurs in the light while the light propagates along the optical transmission line; a second polarization controller for performing polarization conversion on the light, of which the polarization mode dispersion is compensated, so that a state of polarization of the light can be one linear polarization; a polarization beam splitting portion for splitting the light, which is polarization-converted by said second polarization controller, into the one linear polarization and an other linear polarization which is orthogonal to the one linear polarization; an optical-intensity measuring portion for measuring intensity of the other linear polarization; and a controlling portion for controlling said compensating portion and said second polarization controller so that the intensity of the other linear polarization measured by said optical-intensity measuring portion becomes minimized.
Abstract:
A PMD emulator configured by connecting in this order: an input-side optical fiber 71 for receiving light to be measured; a first polarization rotating portion 73 including M DGD sections 76 (M is an integer equal to or more than 2) concatenated by (M−1) polarization rotators 80, one DGD section being arranged at each end of said first polarization rotating portion; an arbitrary-arbitrary polarization controller 75 for changing any state of polarization into any other state of polarization, a second PMD rotating portion 74 configured in the same way as the first polarization rotating portion 73 an output-side optical fiber for outputting the light to be measured.
Abstract:
A PMD emulator configured by connecting in this order: an input-side optical fiber 71 for receiving light to be measured; a first polarization rotating portion 73 including M DGD sections 76 (M is an integer equal to or more than 2) concatenated by (M−1) polarization rotators 80, one DGD section being arranged at each end of said first polarization rotating portion; an arbitrary-arbitrary polarization controller 75 for changing any state of polarization into any other state of polarization, a second PMD rotating portion 74 configured in the same way as the first polarization rotating portion 73 an output-side optical fiber for outputting the light to be measured.
Abstract:
Provided is a consumable electrode type arc welding method and device in which stable welding can be performed at a high speed for a welding gap greater than a thickness of a base metal and the like, and welding conditions are automatically changed according to the welding gap along a welding line to perform the stable welding. A first base metal extended vertically and a second base metal which has an upper end positioned in a middle portion of the first base metal and is provided along the first base metal are welded together. The first and second base metals have a thickness of 2.8 mm, and an arc is generated toward an upper end portion of the second base metal from obliquely above on a side opposite to the first base metal. The second base metal is melted to be a part of a weld metal. An amount of the second base metal to be melted is increased or decreased according to a welding gap detected by a laser sensor.
Abstract:
An information processing apparatus includes an operation display device, a hardware key input device, a placement detector, and processing circuitry. The operation display device includes a touch panel. The hardware key input device is configured to be placed on the operation display device. The hardware key input device includes a key top having a high dielectric constant for pressing the touch panel. The placement detector is configured to detect placement of the hardware key input device on the operation display device. The processing circuitry is configured to cause a display on the touch panel to transition to a mode enabling a pressing operation using the hardware key input device when the placement detector detects the placement of the hardware key input device.
Abstract:
The present invention relates to a high-output diamond semiconductor element, including a Schottky electrode as a cathode, a diamond P− drift layer, a diamond p+ ohmic layer, an ohmic electrode as an anode, and an insulating film layer disposed to surround a circumference of the Schottky electrode. It also relates to a high-output diamond semiconductor element, including a Schottky electrode as a cathode, a diamond P− drift layer, a diamond p+ ohmic layer, an ohmic electrode as an anode, a dielectric layer disposed on a part of a junction surface of the Schottky electrode and the diamond p− drift layer, and a field plate containing a conductor, the field plate being disposed on an external surface of the dielectric layer to surround a circumference of the Schottky electrode.