Abstract: In an embodiment of this invention, a diagnosis engine refers to a risk assessment DB and anti-risk measure DB, calculates along the time sequence a risk estimate amount in case of failure for each device and a maintenance cost in executing a measure method in advance, and adds the risk estimate amount and maintenance cost along the time sequence to calculate an optimum maintenance period of the device. When a failure has occurred in the device, the diagnosis engine refers to a failure diagnosis DB on the basis of the identification information of the device and the failure mode and analyzes, on the basis of an operation record, a failure which is different from a secular change.

Abstract: An electronic apparatus has a plug-in unit and a housing that can increase a number of optical modules connected thereto. In the plug-in unit, a first connector is connectable to an optical module connected to an optical cable. A connector housing accommodates the first connector and has an insertion part into which the optical module is inserted. An attachment lever is used for fixing the plug-in unit to the housing in which the plug-in unit is accommodated. The first connector is located on a back side of the plug-in unit opposite to a front side where the attachment lever is located.

Abstract: In a method of degradation diagnosis according to the present invention, an equipment degradation diagnosis request is input through network 4 from a diagnosis requester and a degradation diagnosis requests handler is selected in accordance with execution condition information of degradation diagnosis specified in respect of at least one degradation diagnosis requests handler and condition information in accordance with which an diagnosis requester requests degradation diagnosis. A request for execution of degradation diagnosis is made to this selected degradation diagnosis requests handler and the results of execution of the degradation diagnosis obtained by the selected degradation diagnosis requests handler are acquired and output through network 4 to the diagnosis requester. In this way, a service can be implemented whereby diagnosis of degradation requested by a diagnosis requester from a diagnostic service provider is performed rapidly and easily at low cost.

Abstract: An electronic apparatus includes an optical connector adapting unit to which optical connectors of external optical fibers are connected. The optical connector adapting unit includes a plurality of optical connector adapters which are diagonally arranged on the front side of the apparatus. The optical connectors of the external optical fibers are diagonally detachable from the optical connector adapters. In this electronic apparatus, a large number of optical connectors of optical fibers can be connected and arranged in a restricted space.

Abstract: The waveform signal analyzer of the present invention is equipped with: input means 10 that inputs a waveform signals; period detection means 20 that detects the period of the waveform signals inputted by input means 10; and division means 30 that divides the waveform signals by the period detected by period detection means 20. Wavelet transformation means 40 performs wavelet transformation of each individual division of the waveform signals. Display means 50 consecutively displays in time series the wavelet transformation results of each individual division of the waveform signals.

Abstract: An information processing device includes an OS having an interrupt processing function and an OS support system which is activated through initialization of the OS. The OS support system includes an interrupt managing section for recording the contents of an interrupt process requiring a high realtime performance, and an interrupt judging section for receiving an interrupt request earlier than the OS does when the interrupt request occurs in the information processing device, and judging whether the interrupt request corresponds to the interrupt process recorded in the interrupt managing section. The OS support system further includes an interrupt executing section for executing the recorded interrupt process when the interrupt request corresponds to the recorded interrupt process. The OS support system causes the OS to execute an interrupt process which is not recorded in the interrupt managing section.

Abstract: A communication device which is constructed so as to permit efficient mounting of cards such as printed boards, thereby enhancing convenience and economy and ensuring high-quality communications. A basic unit is constituted by a basic board having a common control section packaged thereon, and a basic back wiring board on which are arranged a basic card connector for mounting a detachable card unit for processing signals and a basic link connector for additionally connecting such a card unit and which has wiring formed on a substrate thereof. An extension unit is connected to the basic link connector to permit additional connection of the card unit.

Abstract: In a method of degradation diagnosis according to the present invention, an equipment degradation diagnosis request is input through network 4 from a diagnosis requester and a degradation diagnosis requests handler is selected in accordance with execution condition information of degradation diagnosis specified in respect of at least one degradation diagnosis requests handler and condition information in accordance with which an diagnosis requester requests degradation diagnosis. A request for execution of degradation diagnosis is made to this selected degradation diagnosis requests handler and the results of execution of the degradation diagnosis obtained by the selected degradation diagnosis requests handler are acquired and output through network 4 to the diagnosis requester. In this way, a service can be implemented whereby diagnosis of degradation requested by a diagnosis requester from a diagnostic service provider is performed rapidly and easily at low cost.

Abstract: An image forming apparatus includes a voltage control circuit and a decision circuit. The voltage control circuit varies a voltage to be applied to a charge roller at preselected intervals in correspondence to the non-image area of a photoconductive element. A photosensor senses the reflection density of a particular control pattern formed on the drum 1 before and after the above voltage is varied. The voltage control circuit controls the voltage to be applied to the charge roller in accordance with a ratio between the resulting outputs of the photosensor. The decision circuit determines, at the start-up of the apparatus, whether or not to cause the voltage control circuit 31 to execute the voltage control in accordance with ambient temperature sensed by a temperature sensor. If the ambient temperature is higher than a reference temperature, the voltage control circuit is inhibited from executing the control.

Abstract: A deterioration diagnosis method, wherein the amount of weight loss of a metallic material due to corrosion in atmospheric air for the exposure days is formulated as a function for environmental assessment points which represents a level of a harmfulness of the atmospheric conditions; and the life span of the metallic material is diagnosed based on the corrosion loss calculated from the function.

Abstract: A charging device and method of operating the device for charging a photoreceptor of an image forming apparatus so that a latent image is formed thereupon to be developed by toner, the device including a charging roller that is configured to constantly contact the photoreceptor with a pressure so as to be rotated by rotations of the photoreceptor and that is configured to charge the photoreceptor, and a charging roller cleaning member that is configured to constantly contact a surface of the charging roller with a pressure so as to remove the toner transferred onto the charging roller from the photoreceptor. A length portion of the charging roller cleaning member along an axial direction of the charging roller is set to be equal to or greater than a width portion of an effective development area in an axial direction of the photoreceptor and smaller than a charging contact width portion of the charging roller with the photoreceptor in the axial direction of the charging roller.

Abstract: An image forming apparatus includes a voltage control circuit and a decision circuit. The voltage control circuit varies a voltage to be applied to a charge roller at preselected intervals in correspondence to the non-image area of a photoconductive element. A photosensor senses the reflection density of a particular control pattern formed on the drum 1 before and after the above voltage is varied. The voltage control circuit controls the voltage to be applied to the charge roller in accordance with a ratio between the resulting outputs of the photosensor. The decision circuit determines, at the start-up of the apparatus, whether or not to cause the voltage control circuit 31 to execute the voltage control in accordance with ambient temperature sensed by a temperature sensor. If the ambient temperature is higher than a reference temperature, the voltage control circuit is inhibited from executing the control.

Abstract: An image forming apparatus including a rotatable member configured to bear an image, a charging member configured to charge a surface of the rotatable member, and a cleaning member in sliding contact with a surface of the charging member. The surface of the cleaning member includes convex portions which engage with convex portions on a surface of the charging member so as to clean the surface of the charging member. Further, the surface of the charging member includes a surface roughness having a directivity set to a forward direction relative to a rotating direction of the rotatable member and set to a backward direction relative to the surface of the cleaning member.

Abstract: The invention is directed to a system that can easily generate determination conditions and determine a plurality of similar junk electronic mail pieces based on one determination condition.

Abstract: The object of the present invention is to provide a pressure sensor comprising a pressure sensing element of a plurality of resistors on a semiconductor board, wherein said pressure sensing element is fixed inside the housing firmly and airtightly.

Abstract: A pressure sensor 1 comprises a metallic housing 10 having a space 18 communicated to a pressure detection space and a thin rising portion 17 formed on the upper end of the peripheral area, a sensor element 20, a sensor element holder 30, a metallic pressure case 60 having a ceiling portion 61, and a connector case 70 formed of an insulating material, wherein a collar portion 211 of a base plate 21 of the sensor element 20 including a pressure sensing element 22 is contacted to an annular protrusion 33 positioned around the opening 32 of the sensor element holder 30, and the collar portion 211 is airtightly welded to the annular protrusion 33 by projection welding. Further, the collar portion 63 on the pressure case 60 and the peak surface 35 of the holder 30 is airtightly welded by an electron beam welding. The airtight interior space defined by the sensor element 20, the sensor element holder 30 and the pressure case 60 is utilized as the reference pressure space.

Abstract: An image inquiry apparatus includes a plurality of unit inquiry circuits arranged in a matrix of m rows and r stages (each of m and r is an integer more than 1). The plurality of unit inquiry circuits other than the unit inquiry circuits of i-th row and (i+1)-th stage (1≦i≦ a smaller one of m and r, and i is an integer) are connected in series in units of rows. Inputs of the unit inquiry circuits of i-th rows and (i+1)-th stages are respectively connected to inputs of the unit inquiry circuits of i-th rows and i-th stages. Each of the plurality of unit inquiry circuits includes a plurality of pixel processing circuits connected in series, and outputs a calculation data corresponding to a difference between a reference pixel and a retrieval pixel which are both held therein. R summing circuits are respectively provided for the r stages of the matrix.

Abstract: The present pressure sensor is formed to enable an easy assembly of the sensor body, the sensor element, the substrate, the lead, the shield plate, the terminal holder, the terminal, the water-proof o-ring, the connector case, and further enabling an easy change in design of the connector case. In a pressure sensor comprising a housing 1 and a connector case 9, and having in the interior thereof a sensor element 2, a substrate 3, a lead 4, a shield plate 5, a terminal holder 71, a terminal 72, water-proof o-rings 8a and 8b, a joint 6 is equipped having a staking portion against the housing 1 and the connector case 9 on its upper portion and its lower portion. This could be formed as a joint having a shield portion formed as one unit.

Abstract: To provide a VLC decoder having a decoding speed sufficiently high to be applicable for decoding MPEG 2 data, and having an appropriate circuit size to be integrated on an IC chip, a VLC decoder comprises: a first decode table (102) implemented with logic circuits for decoding a "zero-run code" at one clock; a second decode table (104) implemented on a memory device for decoding other VLC making use of a tree searching technique; a switching means (103, 105, 108) for switching from the first decode table (102) to the second decode table (104) when EOB code is decoded and switching from the second decode table (104) to the first decode table (102) when the "zero-run code" begins.

Abstract: A developing device using one component developer for developing an electrostatic latent image on a photoconductive drum. The one component developer includes particles of parents of toner, resin beads and silica. The silica adhere to a surface of each resin bead. The resin beads and the silica further adhere to a surface of the parents of toner. A volume average diameter of the resin beads is more than that of the silica and is less than that of the parents of toner.