Abstract:
The present disclosure teaches a method of writing servo patterns for increased productivity. The process for writing servo patterns is divided into a pre-operation carried out before disks are installed into a disk device (fixed to the spindle shaft) and a post-operation that is carried out after the installation. In the pre-operation, patterns written on the recording surface of the disk are two base patterns, namely, (a) a first base pattern arranged on each track center along one radial direction of the disk and (b) a second base pattern arranged along the radial direction at each position corresponding to the position of the sector in a substantially continuous fashion. Then, the disks are assembled or installed into the disk device together with blank disks. In the post-operation, the servo patterns are written based on the first and second base patterns. Here, the expression "substantially continuous fashion" also includes the case where the number of discontinuous portions is smaller than that of the first base pattern even if some discontinuous portions are present in the base pattern, besides the case where the base pattern is completely continuous along the radial direction. JA9-87-020
Abstract:
PROBLEM TO BE SOLVED: To achieve, in a system which performs adjustment of hardware during starting, both of improvement in accuracy of adjustment and shortening of starting time of the system. SOLUTION: This system includes: a calibration execution part 142 which adjusts hardware so that the system correctly operates during starting of the system; and a correction data holding part 143 which holds correction information which shows setting of hardware adjusted by this calibration execution part 142 in association with an environmental condition when adjustment is performed. When corrected information associated with an environmental condition equivalent to the environmental condition when the system is started is held in the correction data holding part 143, the calibration execution part 142 performs setting of the hardware based on the corrected information currently held, instead of adjusting the hardware. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve cooling effect of a semiconductor component on a circuit board. SOLUTION: A circuit module includes a thermally conductive board 30 which forms a part of a cabinet, a circuit board 32 on the thermally conductive board, which has openings 44, an upper face 50 having a plurality of electrode pads arranged to surround the opening and a lower face 52 positioned on an opposite side of the upper face, a semiconductor chip 34 connected to a plurality of the electrode pads on the upper face of the circuit board through solder 46, a heat sink 36 bonded to an upper face of the semiconductor chip, thermally conductive members 38, 40 and 42 which thermally connect the thermally conductive board and the semiconductor chip, have elasticity, pass through the openings of the circuit board, and each of which one face is brought into contact with a lower face of the semiconductor chip and other face to a surface of the thermally conductive board, and a plurality of clamping members 48 passing through the circuit board in a thickness direction at a periphery of the semiconductor chip and connecting the heat sink with the thermally conductive board so that they face each other. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To increase the convenience of a radio IC chip by adding to the radio IC chip a mechanism for erasing retained data when the reception of a radio wave is interrupted. SOLUTION: The radio IC chip comprises a circuit unit 110 including a nonvolatile memory 111, a circuit unit 210 including a volatile memory 211, a reading/writing circuit for reading/writing data from/to the nonvolatile memory 111 and volatile memory 211, an antenna 21 and an RF amplifier 100 as a first power supply means for receiving a first radio wave to supply power to the circuit unit 110, and an antenna 22 and an RF amplifier 200 as a second power supply means for receiving a second radio wave different in frequency from the first radio wave to supply power to the circuit unit 210. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To facilitate exchange of hard disk drives in a server unit stored in a rack. SOLUTION: A server unit 101 consists of an outer case 102 and an inner case 109. In the inner case, a movable part 122 which can be moved downward is attached, and hard disk drives 113 are stored in two columns. When replacing a hard disk drive 112 placed on the backside, the inner case 109 is pulled out, the movable part 122 is lowered, and the end surface of a hard disk drive 112 placed on the backside is exposed. By adopting this structure, all the hard disk drives 113 are made exchangeable from the front surface side, and removal of the server unit 101 from the rack is made unnecessary in exchanging the hard disk drives 113.
Abstract:
PROBLEM TO BE SOLVED: To provide a method of switching a boot device of information processing equipment capable of making maintenance personnel easily switch the boot devices with strictly performing security control for the information processing equipment not equipped with an input device. SOLUTION: In the information processing equipment not equipped with a man-machine interface for inputting, a step to short-circuit an output port and an input port, a step S12 to output a confirmation signal from the output port when activating power supply to or restarting the information processing equipment, a step S13 to determine whether the signal is input to the input port or not, a step S14 to switch a boot start of OS to a second boot device when the signal is input to the input port, and a step S19 to switch the boot start of OS to a first boot device when the signal is not input in the input port are performed.
Abstract:
PURPOSE: To provide s signal input device and its method which is capable of dealing with data inputted from an input means such as a keyboard and another input means as data of the same format and does not use an access method for data operated on a personal computer. CONSTITUTION: CPU 12 consists of an interruption controller 14 controlling an interruption processing, a keyboard controller 16 and a bar code reader 28. The bar code reader 28 is connected with the personal computer 10 by a connector 26. The keyboard controller 16 and the interruption controller 14 are connected with each other through a bus 30. A keyboard 32 is connected with the keyboard controller 16. The keyboard controller 16 consists of an input buffer 18, a control part 20, an output buffer 22 and a latch 24.