Abstract: A safety switch includes a processor and a display device. The processor is configured to: set an operation mode of the safety switch; an output unit configured to output a mode notification signal for indicating whether the operation mode of the safety switch is in a maintenance mode; receive an input of a display control signal based upon a system operation mode of a switch system including the safety switch and at least one other safety switch. In response to reception of the input of the display control signal based upon a fact that the system operation mode is in a system maintenance mode indicating that at least one of operation modes of the safety switch and the at least one other safety switch is set to the maintenance mode, the display device displays the indication indicating that the system operation mode is in the system maintenance mode.

Abstract: An equipment control system includes a control unit. The control unit is configured to control equipment based on an authority. The authority is set for each of a plurality of individuals and a relative positional relationship. The relative positional relationship is a relative positional relationship between the equipment and each of the plurality of individuals.

Abstract: A safety switch includes a processor and a display device. The processor is configured to: set an operation mode of the safety switch; an output unit configured to output a mode notification signal for indicating whether the operation mode of the safety switch is in a maintenance mode; receive an input of a display control signal based upon a system operation mode of a switch system including the safety switch and at least one other safety switch. In response to reception of the input of the display control signal based upon a fact that the system operation mode is in a system maintenance mode indicating that at least one of operation modes of the safety switch and the at least one other safety switch is set to the maintenance mode, the display device displays the indication indicating that the system operation mode is in the system maintenance mode.

Abstract: An optical/electrical interconnect board includes a base material composing an electrical circuit; a plurality of light receiving/emitting units, each of the units being constituted by a light emitting element and a light receiving element packaged on the base material; and an optical fiber tape that connects the light emitting element to the light receiving element for each of the light receiving/emitting units, the optical fiber tape being formed by bringing together optical wires for the units in a side-by-side manner and coating with a first coating material.

Abstract: The present invention provides a bilateral communication network system, particularly, a optical wireless communication system communicating information frames via an optical node mounted on a mobile object and a plurality of optical repeaters connected to a wired network, which can prevent transfer performance from deteriorating without increasing frames to be transferred. The optical wireless communication system is constituted as follows. A plurality of the optical repeaters having functions to switch information frames are attached to a ceiling. The optical node bilaterally communicating with the optical repeaters are mounted on a moving object such as a robot, a vehicle or the like. Information frames including address information of the optical node are periodically transmitted from an information processor connected to the optical node via optical wireless communication.

Abstract: A substrate (2) is composed of laminated green sheets. The substrate (2) is provided with recesses (2f, 2g) formed on at least two locations deeper than implemented heights of ICs (4, 6) and elements (3, 5). A transmitter and a receiver are mounted in different recesses, which are individually covered with a mold resin to form a molded optical communication module (1), which operates fast and causes no optical and electrical crosstalk.

Abstract: A substrate (2) is composed of laminated green sheets. The substrate (2) is provided with recesses (2f, 2g) formed on at least two locations deeper than implemented heights of ICs (4, 6) and elements (3, 5). A transmitter and a receiver are mounted in different recesses, which are individually covered with a mold resin to form a molded optical communication module (1), which operates fast and causes no optical and electrical crosstalk.

Abstract: A driving circuit for a light emitting device keeping its excellent eye pattern by improving an extinction ratio and reducing power consumption, can be provided by arranging the following way. The driving circuit has a driving unit having a frequency response curve indicating opposite property to a frequency response curve of the light emitting device. The driving unit comprises a power outputting type amplifier constituted by a transistor having a gain curve increasing with a predetermined gradient starting from a cut-off frequency of the light emitting device. The amplifier comprises a frequency generating unit constituted by a capacitor and a resistance for generating a desired frequency, a current multiplier unit constituted by a current mirror circuit comprising 7 transistors and a discharge circuit for applying a reverse current, which is distributed from the current multiplier circuit, to the light emitting device.

Abstract: An optical communication device having features such as: a simple structure, easily mountable, less restrictions in arrangement designing, easy to attain compact arrangement, a mechanical sturdiness and a stable wide directional angle, is constituted as follows. A plurality of LED lamps as photo-emitting elements are mounted on a base plane with a predetermined angle inclined around long axe of the respective LED lamps and the long axe of the LED lamps are arranged so as to dived a circle on the base plane equally.

Abstract: The present invention provides a bilateral communication network system, particularly, a optical wireless communication system communicating information frames via an optical node mounted on a mobile object and a plurality of optical repeaters connected to a wired network, which can prevent transfer performance from deteriorating without increasing frames to be transferred. The optical wireless communication system is constituted as follows. A plurality of the optical repeaters having functions to switch information frames are attached to a ceiling. The optical node bilaterally communicating with the optical repeaters are mounted on a moving object such as a robot, a vehicle or the like. Information frames including address information of the optical node are periodically transmitted from an information processor connected to the optical node via optical wireless communication.

Abstract: A scanner guide slides along a guide rail aligned with a scanning path of the scanner. A positioner with projections or holes on the guide rail cooperates with holes or projections in the guide to identify a position of the scanner within bounds equal to or less than a maximum scanning path. The scanner is swingable between a scanning position overlying a bar code and an upright non-use position displaced from the bar code scanning surface. A bar code of extended length can be precisely verified as well as a shorter bar code by the bar code reader.

Abstract: A scanner of a bar code verifier is provided with a viewing window that allows the operator to align the scanner and a bar code to be scanned by the scanner. However, such a viewing window also allows external light to enter the scanner and reduce the accuracy with which the bar code is verified. This problem is solved by a scanner 1 of a bar code verifier according to the invention provided with a blind shutter 8 that can selectively open or close the viewing window 7 so that, during the operation of reading and verifying the bar code, the viewing window 7 may be closed by the blind shutter 8 to improve the accuracy with which the bar code is verified.

Abstract: In a portable type machine, material supporting members adapted to be stretched for use during the use of the machine are pivotally connected to the opposite sides of the machine for upward rotation and during the transportation of the machine, the supporting members are pivoted onto the top of the machine body so as to form a transportation handle on top of the machine body. By one touch, the machine can be transformed from its shape during use into a compact shape suitable for transportation, thus greatly enhancing the transportation efficiency of the machine.

Abstract: This specification discloses an original urging device for enabling an original to be well placed and supported on the original supporting carriage of a copying machine, a printing machine or the like. The supporting member for the original urging plate of the device has one end thereof pivotally supported. A point for taking the resilient force of a resilient member is provided at a point on the supporting member. During replacement of the original, the original urging plate may be made stationary within a predetermined range of angles facilitating the handling of the urging plate, in accordance with the rotated position of the supporting member and by the relationship between the moment produced by the gravity force acting to the supporting member and urging plate and the moment produced by the resilient force of the resilient member.