摘要:
When line trouble occurs in an optical network, the restoration time can be reduced. A transponder 21 includes an active line and a standby line 43, and a transponder 22 includes an active line 42 and a standby line 44. The standby line 44 of the transponder 22 is accommodated in the same optical line as the active line 41 of the transponder 21. Upon detection of line trouble, the receiving transponder 24 acquires a VDC setting value for the active line 41, and sets the VDC setting value for the standby line 44 on the basis of the acquired VDC setting value.
摘要:
A method for producing a semiconductor light emitting device includes the steps of forming a mask layer having a plurality of openings on a surface of a silicon substrate; and forming a column-like multi-layer structure including a light emitting layer in each of the plurality of openings with nitride semiconductor materials. A width between two adjacent openings of the plurality of openings of the mask layer is 10 &mgr;m or less.
摘要:
A carriage assembly for holding one or more inkjet print cartridges. A mechanical key on a carriage chute is formed in a predetermined pattern having a plurality of columns such that at least one of the columns acts as a barrier preventing a non-compatible print cartridge from staying in a secured mounting position.
摘要:
A spring for latching a print cartridge in a carriage in a facsimile printer mechanism. The spring is a cantilever that is doubled back on itself to obtain a long effective length is a short space.
摘要:
A displaceable print cartridge chute for an inkjet printer. The chute holding the print cartridges is displaceable from the carriage that sweeps the cartridges relative to the media during printing. The chute can be moved from a printing position engaged with the carriage to a service position adjacent a side of the printer so as to facilitate installation and removal of the cartridges through the side rather than the top of the printer. Because cartridges are serviced through the side, a printer incorporating the displaceable print cartridge chute can be stacked with other electronic equipment.
摘要:
An inkjet printer and method of printing to reduce printer footprint size using printhead service stations comprised of printhead wipers, priming and capping apparatus at each end of the path of travel of a printhead carriage having multiple printheads. Selected printheads are serviced in each service station and selected printheads may be used for printing in opposite directions to further reduce footprint size of the printer.
摘要:
A synchronization message transmitting apparatus employs a synchronization message to synchronize a communication network. If an abnormality occurs in any part of the apparatus or on a clock in the apparatus, the apparatus detects the abnormality and prepares a synchronization message indicating that a frame to be transmitted must not be used for preparing a master clock. An opposite party that receives the frame with the synchronization message will not use the received frame for preparing a master clock.
摘要:
A hydraulic working machine has an assist electric motor connected to an engine and a hydraulic pump. The emissions of air pollutants in the exhaust gas from the engine are minimized regardless of fluctuations in the load torque of the hydraulic pump. A specific revolution speed suitable for reducing the emissions of air pollutants is stored, and an engine is controlled using the specific revolution speed as a target revolution speed. The absorption torque of a hydraulic pump is subjected to high-pass filtering whereby a high-frequency component devoid of a trend component is obtained. Target assist torque is computed from the high-frequency component, and the assist electric motor is subjected to power running/generation control accordingly. A specific output torque range suitable for reducing the emissions of air pollutants is stored, and the target assist torque is corrected so that the trend component does not exceed the specific output torque range.
摘要:
To prevent a hung-up of communications due to changes in a radio wave condition resulting from frequent displacement of the terminals and changes in a number of the terminals, and to realize switching of the radio systems adapting to the radio condition. A radio communication system comprising: a base station for providing a plurality of radio systems, and terminals for communicating with the base station through the plurality of radio systems. The base station decides a priority of the radio system on which the each terminal will communicate thereafter and transmits paging signals of one of the plurality of radio systems which includes information on the decided priority to the each terminal.
摘要:
An object of the invention is to provide a diagnosis method for standby systems in an optical ring network having a redundant configuration, which can confirm normal states of standby systems in all optical transmission apparatuses on the network, even during operations of active systems. To this end, in the present diagnosis method for standby systems, when a diagnosis start command is given to an arbitrary optical transmission apparatus on the network, the optical transmission apparatus provides a false signal to a standby system unit to diagnoses an operation state thereof, and transmits the result to the optical transmission apparatus on the downstream side by utilizing overhead information in the active system optical channel. The optical transmission apparatus on the downstream side confirms a normal operation on the upstream side, thereafter, diagnoses the operation state of the standby system by utilizing the false signal, and updates the overhead information of the active system optical channel corresponding to the diagnosis result, to transmit the updated information to the optical transmission apparatus on the further downstream side. According to the overhead information of the active system optical channel, which has made a round of the ring network, normal operations of the standby system units in all optical transmission apparatuses on the network are confirmed, to thereby finish the standby system diagnosis.