摘要:
In one embodiment, a circuit device that performs a certain processing operation with respect to an input signal by referring to a reference voltage and outputs the result is caused to have a function of switching the reference voltage, whereby a circuit device from which a stable output can be obtained is disclosed. The circuit device includes a comparator and a reference voltage setting circuit. The comparator compares an input voltage fed from outside with a reference voltage selected from a reference voltage set including a plurality of voltage values that are different from one another. The reference voltage setting circuit selects a voltage value lower than the reference voltage from the reference voltage set when it is detected that the input voltage in a rising transition reaches the reference voltage, selects a voltage value higher than the reference voltage from the reference voltage set when it is detected that the input voltage in a falling transition reaches the reference voltage, and sets the selected voltage value as the reference voltage of the comparator.
摘要:
In one embodiment, a circuit device that performs a certain processing operation with respect to an input signal by referring to a reference voltage and outputs the result is caused to have a function of switching the reference voltage, whereby a circuit device from which a stable output can be obtained is disclosed. The circuit device includes a comparator and a reference voltage setting circuit. The comparator compares an input voltage fed from outside with a reference voltage selected from a reference voltage set including a plurality of voltage values that are different from one another. The reference voltage setting circuit selects a voltage value lower than the reference voltage from the reference voltage set when it is detected that the input voltage in a rising transition reaches the reference voltage, selects a voltage value higher than the reference voltage from the reference voltage set when it is detected that the input voltage in a falling transition reaches the reference voltage, and sets the selected voltage value as the reference voltage of the comparator.
摘要:
A technique of processing images previously-formed on first and second opposite sides of a document is disclosed. The technique includes: reading the images on the document at a reading position by scan; transporting the document such that the first side is moved facing the reading position, and, after the first side is read, the second side is moved facing the reading position; and controlling at least one of a start-of-reading timing of the first side and a start-of-reading timing of the second side, such that a relationship between the start-of-reading timing of the first side and the start-of-reading timing of the second side varies, depending on whether or not an extension direction of a binding edge along which the document is to be bound is parallel to a document orientation in which a length of the document is oriented with respect to a transport direction of the document being transported.
摘要:
An image reading apparatus includes: a reading unit; a memory interface unit; a permission information obtaining unit; a permission determining unit; and a data recording unit. The reading unit reads an image. An external memory is removably connected to the memory interface unit and stores permission information. The permission information obtaining unit is configured to obtain the permission information from the external memory. The permission determining unit is configured to determine whether the obtained permission information is valid. The data recording unit is configured to record data corresponding to the image on the external memory connected to the memory interface unit if the obtained permission information is valid.
摘要:
A spindle unit having a pressure foot whose machining efficiency may be improved even when compressed air is used as means for pressing the pressure foot. The spindle unit having the pressure foot includes a rotor shaft provided within a base rotatably and movably along an axis, a collet chuck provided at one end of the rotor shaft, a linear motor for moving a movable element rotatably connected with the rotor shaft and movably provided within the base along the axis together with the rotor shaft to move a drill closer to or apart from the workpiece, a rotary motor for rotating the rotor shaft, a pressure foot disposed in front of the edge of the collet chuck and is capable of pressing down the workpiece, and air cylinders for connecting the movable element with the pressure foot so as to be relatively movable by a predetermined degree and for pressing the pressure foot in the direction separating from the collet chuck.
摘要:
A document feeder includes: an inlet; an outlet; an input transfer path configured to guide a document during transfer from the inlet passed a scanning point to an end point positioned above the inlet; an intermediate transfer path configured to guide the document during transfer from the end point passed the scanning point to the end point again; an output transfer path configured to guide the document during transfer from the end point passed the scanning point to the outlet; a sensor disposed at downstream of the scanning point; and a controller determine whether the document transfer, based on the signal of the sensor.
摘要:
An auto document feeder that includes: a document delivering unit that delivers a document along a document delivery path including a reading position; a switchback delivering unit that returns the document from a downstream side of the reading position to an upstream side of the reading position with a leading end and a trailing end of the document inverted through a switchback delivery path coupled to a predetermined position of the document delivery path; and a control unit that drives the document delivering unit at a reading speed corresponding to a reading resolution when delivering the document on the reading position and drives the document delivering unit and the switchback delivering unit at a delivery speed that is higher than the reading speed when returning the document to the reading position through the switchback delivery path.
摘要:
There are provided a printed board drilling method and a printed board machining apparatus that are capable of improving machining quality, such positional accuracy of holes and true roundness of machined holes, and work efficiency by minimizing a runout of the tip of a drill. An extension of the drill extending out a spindle when the drill is held by the spindle is defined in advance per type or mode of use of each drill. One drill is selected among a plurality of drills corresponding to a shape of holes to be drilled in the printed board and the spindle is caused to hold the drill so that the selected drill extends out of the spindle by the extension corresponding to the selected drill. Then, the move of the spindle with respect to the printed board is controlled and the selected drill is rotationally driven by the spindle to drill the printed board.
摘要:
An optical connector 21 includes optical connector plugs 2 and 2, a ferrule holder 22, and a connector housing 23, and the ferrule holder 22, in which the optical connector plugs 2 and 2 are removably received, is removably fitted in the connector housing 23. plug-introducing slits 33 and 33 are formed respectively through opposite side walls 32 and 32 of the ferrule holder 22 and also through part of a rear wall 26 thereof so that the optical connector plugs 2 and 2 can be removably mounted on the ferrule holder. The connector housing 23 has an elastic retaining piece portion 46 engageable with the ferrule holder 22 to prevent the withdrawal of the ferrule holder 22 from the connector housing, and the engagement of this elastic retaining piece portion can be canceled.
摘要:
An electrical connecting device includes a stator consisting of a cylindrical housing, a rotor, a flexible flat cable and a carrier. Being accommodated in an annular space defined between the rotor and the stator, the flat cable has an end fixed to the stator and another end fixed to the rotor. The carrier has a gap in the circumferential direction, providing C-shaped member. The flat cable is wound along the outer periphery of the rotor in one winding direction, while the flat cable is also wound along the inner periphery of the stator in the opposite winding direction, through a turning part of the flat cable. The carrier is provided with a pusher part for pushing the flat cable. The pusher part is formed to project from an inner edge of one circumferential end of the carrier toward another circumferential end around which the turning part of the flat cable is looped. When the flexible flat cable is drawn out of the gap of the carrier, the pusher part serves to depress the swollen part of the flexible flat cable. Consequently, the flexible flat cable can be moved smoothly without buckling.