摘要:
A level shift circuit includes first and second level shifters which respectively output first and second output signals that are produced by level shifting two kinds of input clock signals whose high level periods do not overlap. The level shift circuit also includes control transistors and control lines which, together, prevent a feedthrough current from flowing into the second level shifter when the first output signal is high level, and prevent a feedthrough current from flowing into the first level shifter when the second output signal is high level, so as to suspend the level shift operation of the first and second level shifters. With the level shift circuit, power consumption during a specific time period in a non-active period of the clock signal can be eliminated, where the specific time period of one clock signal is the active period of the other clock signal.
摘要:
A shift register includes plural stages of flip-flops. The last-stage flip-flop Fn and the flip-flop Fn−1 that is the preceding flip-flop thereof are reset by inputting thereto an output signal from the last-stage flip-flop. A delaying means is provided, between an output terminal Q of the last-stage flip-flop for outputting the output signal and an input terminal R of the last-stage flip-flop for receiving the output signal, for delaying an input of the output signal to the input terminal R. The flip-flop Fn is reset at same time or after the preceding flip-flop Fn−1 is reset. With this arrangement, it is possible to prevent malfunctions of circuits due to a failure to reset the flip-flops.
摘要:
A sheet handling apparatus is proposed to be able to stably shift a position of a sheet. A sheet handling apparatus comprises: conveyance device for conveying a sheet; shift device, rotating in a direction inclined relative to a direction of conveyance of the sheet, for coming into contact with the sheet to shift a position of the sheet in a widthwise direction of conveyance; and shift presence and absence switching device for switching between a shift execution state, in which shift of the sheet is executed by the shift device, and a shift non-execution state, in which the shift is not executed by the shift device; wherein at least a part of that contact portion of the shift device, which comes into contact with a surface of the sheet, is positioned at a side of a shift direction relative to the conveyance device, which has a conveyance force during shift, and a frictional force of the shift device on the sheet at the time of execution of shift is set to be larger than that of the conveyance device on the sheet.
摘要:
A sheet housing part of a sheet handling machine is provided with a guide member for adjusting a size of a housing space of the sheet housing part. A tip end part of the guide member is made pivotable, and is provided with a biasing member for swinging the tip end part in a direction of a side wall of the sheet housing part. A gap provided between the guide member and an inner wall of the sheet housing part is closed with this construction, and thereby, a foreign matter is prevented from entering this gap.
摘要:
A communication control system and method comprising, in one embodiment, a master station connected to a slave station using two redundant buses, wherein command frames having the same content are sent out to the buses and the communication process is changed depending on whether or not the contents of the command frames, when received by the a receiving station, are identical. In another embodiment, a plurality of units are connected to each bus in a multi-drop configuration, and a line length of each bus is defined so that reflected signals from other units reach a receiving unit on each bus after the transition period of a received signal at that receiving unit ends. In still another embodiment, a unit is connected to each bus and the unit is provided with a driver IC, wherein transmission data is first encoded into bit signals having a fixed number of bits, then the signals are supplied to the driver IC. In a further embodiment, a plurality of strobe signals are generated at different timings in a transmission circuit and a plurality of latch circuits equal to the number of strobe signals are provided in a receiver circuit so that data is retained in each latch circuit using the strobe signals one at a time. In a still further embodiment, an arbitration procedure is carried out using an arbitration bus when a bus master desires to use a data bus immediately after using the data bus, wherein it is determined whether arbitration has been carried out using the arbitration bus, and if none has been carried out, the arbitration procedure is omitted and the bus master is allowed to aquire the right to again use the data bus.
摘要:
A sheet handling apparatus is proposed to be able to stably shift a position of a sheet. A sheet handling apparatus comprises: conveyance device for conveying a sheet; shift device, rotating in a direction inclined relative to a direction of conveyance of the sheet, for coming into contact with the sheet to shift a position of the sheet in a widthwise direction of conveyance; and shift presence and absence switching device for switching between a shift execution state, in which shift of the sheet is executed by the shift device, and a shift non-execution state, in which the shift is not executed by the shift device; wherein at least a part of that contact portion of the shift device, which comes into contact with a surface of the sheet, is positioned at a side of a shift direction relative to the conveyance device, which has a conveyance force during shift, and a frictional force of the shift device on the sheet at the time of execution of shift is set to be larger than that of the conveyance device on the sheet.
摘要:
A communication system has: a controller that is connected to a plurality of field devices for inputting and outputting an analog signal and a digital signal; and a system computer that is provided in an upper hierarchical layer of the controller, and communicates with one of the plurality of field devices by using the digital signal through the controller. The communication system further has a path establishing section that selects a field device for communication from the plural field devices, and establishes a virtual communication channel to be a communication path for performing one-to-one communication with the selected field device via the system computer and the controller.
摘要:
A driver circuit for a display device includes a plurality of set-reset flip-flops and switch circuits, and is arranged so that a timing pulse for sampling outputted from the flip-flop is supplied to the switch circuit, so as to cause the switch circuit to receive a clock signal. The clock signal operates as a set signal of the next stage flip-flop and outputted as a control signal for carrying out pre-charging of a data signal line and a selected pixel connected to the data signal line, with a switch. Thus, in case of performing pre-charging of a signal supplying line with an internal pre-charging circuit by using a pre-charging power source having small driving ability, this arrangement can provide a driver circuit for a display device capable of preventing fluctuation of a signal supplied to a different signal supplying line, while keeping the circuit scale of the shift register small.
摘要:
A shift register includes plural stages of flip-flops. The last-stage flip-flop Fn and the flip-flop Fn−1 that is the preceding flip-flop thereof are reset by inputting thereto an output signal from the last-stage flip-flop. A delaying means is provided, between an output terminal Q of the last-stage flip-flop for outputting the output signal and an input terminal R of the last-stage flip-flop for receiving the output signal, for delaying an input of the output signal to the input terminal R. The flip-flop Fn is reset at same time or after the preceding flip-flop Fn−1 is reset. With this arrangement, it is possible to prevent malfunctions of circuits due to a failure to reset the flip-flops.
摘要:
A shift register includes plural stages of flip-flops. The last-stage flip-flop Fn and the flip-flop Fn−1 that is the preceding flip-flop thereof are reset by inputting thereto an output signal from the last-stage flip-flop. A delaying means is provided, between an output terminal Q of the last-stage flip-flop for outputting the output signal and an input terminal R of the last-stage flip-flop for receiving the output signal, for delaying an input of the output signal to the input terminal R. The flip-flop Fn is reset at same time or after the preceding flip-flop Fn−1 is reset. With this arrangement, it is possible to prevent malfunctions of circuits due to a failure to reset the flip-flops.