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| 20100158534 | MULTIRATE COMMUNICATION APPARATUS AND METHOD OF CONTROLLING LINE-CONFIGURATION OF MULTIRATE COMMUNICATION APPARATUS - There is provided the multirate communication apparatus including: an interface board to connect with a plurality of lines of different bit rates and processing transmission signals of the lines having a first line capacity; a port to mount a transmission module to transmit and receive the transmission signals; a line identifying unit to identify a line type of the transmission module mounted in the port; a plurality of signal processor to process transmission signals having a second line capacity obtained by dividing the first line capacity by a predetermined number; and a line-configuration controller to control a configuration of lines processed in respective the signal processor, based on an identification result of the line identifying unit; wherein the signal processor processes the transmission signals in accordance with the line type of the transmission module mounted in the port, base on a control by the line-configuration controller. | 06-24-2010 |
| 20110051595 | TRANSMISSION APPARATUS - A transmission apparatus switches to a line of one standby system upon occurrence of a fault on any one of n lines of a working system. The transmission apparatus includes a switching controller that when switching from a line of the working system to a line of the standby-system upon the occurrence of the fault and executing a given command to put the line causing the fault in a given state of line switching according to the given command, causes the working system to maintain the state of line switching according to the given command even after restoration from the fault. | 03-03-2011 |
| 20110052186 | TRANSMISSION APPARATUS - A transmission apparatus switches to a line of one standby system upon occurrence of a fault on any one of n lines of a working system. The transmission apparatus includes a switching controller that when switching from a line of the working system to a line of the standby-system upon the occurrence of the fault and executing a given command to put the line causing the fault in a given state of line switching according to the given command, causes the working system to maintain the state of line switching according to the given command even after restoration from the fault. | 03-03-2011 |
| 20120263452 | METHOD OF SWITCHING OPTICAL TRANSPORT NETWORK AND NODE DEVICE - A node device in an optical transport ring network including plural node devices connected in a ring form using plural optical transmission paths so that optical transport frames of a working line and a protection line are transmitted using the plural optical transmission paths, includes a control information transmitter, when a failure occurs in the optical transmission paths, transmitting the optical transport frame to an opposing node device as a transmission destination node in the optical transmission paths, the optical transport frame including switching control information; and a switcher receiving the optical transport frame including switching control information, the optical transport frame being transmitted to the node device as the transmission destination node, forming a loop back to fold a transmission path between the plural optical transmission paths, and switching the optical transmission path from the work line to the protection line. | 10-18-2012 |
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| 20090153091 | IMAGE FORMATION APPARATUS - An error detector determines whether or not there is a frequency error. In a case where it is determined that there is the frequency error, the error detector further determines whether or not the frequency error stays within a targeted error range. In a case where it is determined that the frequency error stays within the targeted error range, a proportional gain is decreased. In a case where it is determined that the frequency error fails to stay within the targeted error range, the proportional gain is increased. Then, a frequency proportional-integral-derivative operation processing is executed based on a set gain. | 06-18-2009 |
| 20090232539 | IMAGE FORMING APPARATUS WITH CONTACT/SEPARATION MECHANISM TO/FROM INTERMEDIATE TRANSFER BODY - In a printer, three toner patches are primary-transferred successively to an intermediate transfer belt. Here, after the first toner patch passes through a belt cleaner and before the second toner patch reaches the belt cleaner, and after the second toner patch passes through the belt cleaner and before the third patch reaches the belt cleaner, the belt cleaner is operated to change the state of contact to the intermediate transfer belt to a different state. A density sensor detects density of the toner image on the intermediate transfer belt, and presence/absence of the toner patch is detected. When presence/absence of the first to third patches is detected alternately, it is determined that the belt cleaner is performing the operation described above. | 09-17-2009 |
| 20090317103 | IMAGE FORMATION APPARATUS AND PREPARATION OPERATION EXECUTION METHOD - Upon completing a preparation operation including different processes, an image formation apparatus shifts to ready state in which image formation is executable, the processes including at least one process executed using a corresponding motor. The image formation apparatus comprises: an obtainer for obtaining, for each process, an estimated time period between start and completion thereof; and a controller for starting execution of, out of the processes, (i) one process whose estimated time period is the longest, then (ii) any other process so that any other process is executed in parallel with said one process. When said one process is included in the at least one process, the controller initiates the motor by high-speed initiation by applying thereto first voltage that is higher than second voltage. When any other process is included in the at least one process, the controller initiates the motor by normal initiation by applying thereto first voltage. | 12-24-2009 |
| 20100073737 | IMAGE READING APPARATUS, IMAGE FORMING APPARATUS, AND CARRIAGE POSITIONING METHOD - An image reading apparatus includes a carriage having mounted thereon a linear light source and an image sensor and a reference pattern member disposed at a reference position located toward the first direction from a home position. The current location of the carriage is judged relatively to first and second areas that are divided by a boundary defined in advance at a location toward the first direction from the reference position. The first area is located toward the first direction and the second area is located toward the second direction. Immediately after the power is turned ON, current location information indicating whether the carriage is currently located in the first area or the second area is read from the nonvolatile memory. The carriage is first moved to the reference position and then moved a predetermined distance in the second direction, so that the carriage is duly positioned at the home position. | 03-25-2010 |
| 20110019237 | APPARATUS AND METHOD FOR FORMING IMAGE FOR PRINTING - An image forming apparatus comprises a image reader unit and a controller. The controller is configured to i) execute a detection operation of calculating a correction coefficient based on reference image data obtained by applying the light from a light source to a reference unit and receiving, by a photoelectric conversion unit, the reflected light from the reference unit to perform photoelectric conversion of the received light to the reference image data, ii) correct image density variations of the image data caused by orientation variations of the light source and pixel sensitivity of the photoelectric conversion unit based on the correction coefficient, iii) form an output image to be printed on output paper in accordance with an arrangement manner, based on the corrected image data, and iv) determine an interval at which the detection operation is executed, in accordance with a characteristic of the light source and the arrangement manner. | 01-27-2011 |
| 20120013957 | DOCUMENT READING DEVICE WHICH INCLUDES AUTOMATIC DOCUMENT CONVEYING MECHANISM AND READS PLURAL DOCUMENTS ONE BY ONE - A digital multi function peripheral includes a scanner for reading an image in a document read position; a document retaining cover for being able to change an opening and closing state between a state in which the scanner is closed and a state in which the scanner is opened, and conveying a document to the scanner when the scanner is closed; a registration sensor for detecting a leading end portion and a rear end portion of the document conveyed by the document retaining cover; and a controller for determining the opening and closing state of the document retaining cover based on a state of the leading end portion and the rear end portion of the document in the image read by an IR module at a time when a predetermined time frame elapses since a detection state of the registration sensor changes. Therefore, the opening and closing state of the conveyance unit for conveying the document can accurately be detected. | 01-19-2012 |
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| 20090052568 | QAM COMMUNICATION SYSTEM AND METHOD THEREOF AND QAM RECEIVING APPARATUS AND METHOD THEREOF - In a quadrature amplitude modulation (QAM) communication system and corresponding method, and a QAM receiving apparatus and corresponding method, a sending apparatus that generates a sending signal adds CRC bits thereto. In a receiving apparatus, data rate is determined without a 16QAM demapping circuit and/or notification of the data rate, by 64QAM demapping a symbol string based on the received signal using a demapping circuit, independently of whether 16QAM or 64QAM was used on the sent signal. A bit string is thus obtained, and by thinning the bit string responsive to a CRC detection result of a CRC detection circuit, an output signal is provided using a thinning circuit. | 02-26-2009 |
| 20090091359 | CURRENT SOURCE DEVICE - The present invention provides a current source device comprising a plurality of current output circuits each including a current output FET, first and second switch FETS respectively series-connected to source and drain sides of the current output FET to form a series circuit, source voltage supply means which applies a positive-side potential of a source voltage to the first switch FET and applies a negative-side potential of the source voltage to the second switch FET to supply the source voltage to the series circuit, and an output terminal connected between the current output FET and the second switch FET; and a gate voltage supply circuit which supplies a common gate voltage to the gates of the current output FETS, wherein each of the current output circuits further includes a third switch FET provided between the current output FET and the second switch FET. | 04-09-2009 |
| 20100097845 | SEMICONDUCTOR STORAGE DEVICE - A semiconductor storage device is provided with a memory array including a plurality of memory cells. The plurality of memory cells includes: first and third memory cells arranged along one of an even-numbered row and an odd-numbered row, and a second memory cell arranged along the other. Each of the plurality of memory cells includes: a first transistor comprising first and second diffusion layers; a second transistor comprising third and fourth diffusion layers; and a magnetoresistance element having one of terminals thereof connected to an interconnection layer which provides an electrical connection between the second and third diffusion layers. The fourth diffusion layer of the first memory cell is also used as the first diffusion layer of the second memory cell. In addition, the fourth diffusion layer of the second memory cell is also used as the first diffusion layer of the third memory cell. | 04-22-2010 |
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| 20080226936 | Centrifugally Cast External Layer for Rolling Roll and Method for Manufacture Thereof - A method for producing an outer layer for a roll having a structure having MC carbide dispersed at an area ratio of 20-60%, comprising the steps of (1) centrifugally casting a melt having a composition comprising, by mass, 2.2-6.0% of C, 0.1-3.5% of Si, 0.1-3.5% of Mn, and 8-22% of V, the balance being Fe and inevitable impurity elements, to produce a cylindrical body comprising an inner layer having concentration MC carbide, an MC-carbide-poor outer layer, and a concentration gradient layer between the inner layer and the outer layer, in which the area ratio of MC carbide changes, and (2) cutting the cylindrical body to a depth at which the area ratio of MC carbide is 20% or more. | 09-18-2008 |
| 20090092852 | CENTRIFUGALLY CAST COMPOSIT ROLL - A centrifugally cast composite roll comprising an outer layer having a composition comprising by mass 2.5-9% of C, 0.1-3.5% of Si, 0.1-3.5% of Mn, and 11-40% of V, the balance being Fe and inevitable impurities; an intermediate layer made of a high-speed steel alloy, which is formed inside the outer layer; and an inner layer made of cast iron or steel, which is formed inside the intermediate layer. | 04-09-2009 |
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| 20080223155 | Probe assembly for lapping bar using patterned probe - A probe assembly used to lap a bar, the bar being provided with elements that are to be formed into sliders, is provided. The probe assembly comprises an elastically deflectable probe, and a stopper for applying bending deformation to the probe so as to cause first bending deflection at a leading end of the probe and for maintaining the first bending deflection of the leading end while preventing a bending deformation at the leading end from becoming smaller than the first bending deflection. The leading end of the probe is adapted to be subjected to second bending deflection that is larger than the first bending deflection in a same direction as a direction of the first bending deflection and thereby to abut against an electrode pad to establish electrical connection between the probe and the electrode pad, the electrode pad being provided on a surface of the bar other than a surface to be lapped. | 09-18-2008 |
| 20110122737 | Thermally-Assisted Magnetic Recording Head with Light Detector in Element-Integration Surface - A thermally-assisted magnetic recording head is provided, in which the light-source output can be adjusted according to its variation by environmental influences and over time. The head comprises: a light source; a write head element provided in a element-integration surface; an optical system provided in the element-integration surface and configured to guide a light emitted from the light source to the vicinity of one end of the write head element; and a light detector for monitoring the light-source output, provided in the element-integration surface and comprising a light-receiving surface covering an area directly above at least a portion of the optical system. This light detector with such a light-receiving surface can detect a leakage light emitted from the optical system as a monitoring light. Therefore, feedback adjustment of the light-source output can be realized to stabilize the intensity of light for thermal-assist applied to a magnetic recording medium. | 05-26-2011 |
| 20110228650 | METHOD FOR MANUFACTURING THERMALLY-ASSISTED MAGNETIC RECORDING HEAD COMPRISING LIGHT SOURCE UNIT AND SLIDER - A method for manufacturing a thermally-assisted magnetic recording head is provided, in which a light source unit including a light source and a slider including an optical system are bonded. A unit substrate is made of a material transmitting light having a predetermined wavelength, and a unit adhesion material layer that contains Sn, Sn alloy, Pb alloy or Bi alloy is formed on the light source unit and/or the slider. The manufacturing method includes: aligning the light source unit and the slider in such a way that a light from the light source can enter the optical system and the unit adhesion material layer is sandwiched therebetween; and causing a light including the predetermined wavelength to enter the unit substrate to melt the unit adhesion material layer. The unit adhesion material layer melted by the light including the predetermined wavelength can ensure high alignment accuracy as well as higher bonding strength and less change with time. | 09-22-2011 |
| 20120139566 | METHOD FOR PERFORMING BURN-IN TEST - Provided is a method for performing a burn-in test on an object under test in which a plurality of electrodes are provided in positions at different heights. The method comprising steps of: preparing an object under test in which an electrode in a higher position have a higher surface roughness among the plurality of electrodes; bringing a plurality of sheet-type probes into contact with the plurality of electrodes, respectively; and supplying an electric current with the plurality of electrodes through the plurality of sheet-type probes. By implementing the method, the sheet-type probes can be kept in stable contact with the electrodes because electrodes in a higher position have a higher surface roughness Ra than electrodes in a lower position. Consequently, stable and reliable burn-in test can be performed. | 06-07-2012 |
| 20120147717 | METHOD OF BURN-IN TESTING FOR THERMALLY ASSISTED HEAD - A plurality of laser diode units is tested in a bar state, each of the laser diode units in which a laser diode that includes a first electrode and a second electrode formed on surfaces facing each other and that is mounted on a mounting surface of a submount such that the first electrode faces the mounting surface of the submount. The method includes preparing a bar in which mounting areas each of which includes the laser diode unit formed thereon and dicing margins for separating the bar into the separate laser diode units are alternatively aligned along a longitudinal direction wherein a first pad electrically connected with the first electrode of the laser diode is disposed on the mounting surface of each of the mounting areas of the submounts and a second pad electrically connected to the first pad of either one of the mounting areas that are adjacent to the dicing margin is disposed on the mounting surface of each of the dicing margins of the submounts: contacting sheet-shaped probes to the second electrode and the second pad at a slantwise angle with respect to the second electrode and the second pad, and pressing the probes to the second electrode and the second pad while deforming the probes; and providing a potential difference between the second electrode and the second pad through the probes so that the laser diode emits laser light. | 06-14-2012 |
