公开(公告)号：JPH02142355A

公开(公告)日：1990-05-31

申请号：JP29472788

申请日：1988-11-24

Applicant: IBM JAPAN

Inventor： KOBAYASHI MASAKI ,  MORI MASAKI ,  NAKANISHI HIDEAKI

IPC: H04N5/63 ,  H02M3/28 ,  H02M3/335 ,  H04N3/18

Abstract: PURPOSE:To prevent voltage stability from deteriorating by operating a switching regulator at a frequency N or 1/N times the frequency of a master switching regulator. CONSTITUTION:The power of a power source 10, after it is rectified and smoothed, is supplied to a master switching regulator(MSR) 13 and slave switching regulators(SSR) 14, 15A, and 15B. For switching, the regulator MSR 13 oscillates at 130kHz when a display control circuit 6 is turned off; it oscillates at 126kHz being four times the horizontal deflection synchronous frequency of a horizontal and vertical deflection control circuit 7 when the display control circuit 6 is turned on. The regulators SSR 15A, 15B oscillate at frequencies 1/4 and 1/2 times that of the MSR 13 respectively for switching. By oscillating all the SSRs synchronized with the MSR 13, a beat phenomenon is prevented from being generated.

公开(公告)号：JP2003167653A

公开(公告)日：2003-06-13

申请号：JP2001359735

申请日：2001-11-26

Applicant: IBM

Inventor： ODAOHARA SHIGEFUMI ,  KOBAYASHI MASAKI ,  KUMAKI ATSUSHI

IPC: G06F1/28 ,  G01R31/36 ,  G06F19/00 ,  G06Q10/00 ,  G06Q30/02 ,  G06Q50/00 ,  G06Q50/10 ,  H01M10/48 ,  H02J7/00 ,  G06F17/60

Abstract: PROBLEM TO BE SOLVED: To properly guide a user who is using an electrical appliance to effectively use the result of a battery diagnosis or the like. SOLUTION: This system is provided with: a notebook-sized PC (notebook- sized personal computer) 10 connected to a network 20 and equipped with a battery for supplying power to the main body by performing battery charging/ discharging; and a management server 30 connected to the network 20 for diagnosing the battery of the notebook-sized PC 10. This notebook-sized PC 10 accesses a Web page provided by the management server 30 through the network 20 by using a browser, designates a URL in an HTML document transmitted from the management server 30, and transmits the information file of the battery to the management server 30. Then, the management server 30 reads the information file, analyzes the information of the battery, determines whether a security period has expired, and transmits the analysis result to the notebook-sized PC 10. COPYRIGHT: (C)2003,JPO

公开(公告)号：JPH05252408A

公开(公告)日：1993-09-28

申请号：JP32023091

申请日：1991-12-04

Applicant: IBM

Inventor： KATAOKA RIEKO ,  KOBAYASHI MASAKI

IPC: H02M3/335 ,  H04N3/185

Abstract: PURPOSE: To minimize variation in high voltage on the output line of a flyback transformer by using compensation voltage pulses of a 2nd frequency higher than a 1st frequency supplied to the flyback transformer. CONSTITUTION: A control circuit 2 is triggered with a horizontal synchronizing pulse and its output is sent to a horizontal deflecting circuit 3, whose output passes through the flyback transformer FBT 11 and a diode 13 to charge a smoothing capacitor 12, so that a high DC voltage is generated on an output line 14 and supplied to the anode 15 of a CRT. Pulses of 70kHz are made into a pulse train 140kHz by a multiplexing circuit 17 and the pulse train is applied to a compensation circuit 18. The circuit 18 responds to an error signal from an error detector 21 and a compensation voltage is applied to a point 28 between capacitors 12 and 20 through a transformer 19. An LPF 29 is connected to the point 28 and FBT 11 and the compensation voltage is applied to the FBT 11.

公开(公告)号：JP2003114648A

公开(公告)日：2003-04-18

申请号：JP2001303477

申请日：2001-09-28

Applicant: IBM

Inventor： KATAOKA RIEKO ,  TAKEDA YASUMASA ,  KOBAYASHI MASAKI ,  KIYOTANI YOSHIMASA

IPC: G02F1/133 ,  G02F1/13 ,  G09G3/20 ,  G09G3/36

Abstract: PROBLEM TO BE SOLVED: To reduce the power consumption of a liquid crystal display device by shortening a frame cycle for replotting picture display in an LCD (liquid crystal display) panel and lowering the operating frequency of the LCD panel. SOLUTION: This display device is provided with an LCD panel 11 and a graphic controller 13 controlling display in the LCD panel 11. When the suppressing of power consumption is performed in the display device, the graphic controller 13 shortens the frame cycle while fixing a refresh rate as it is by shortening a non-display cycle at the time of replotting a picture.

公开(公告)号：JP2003092841A

公开(公告)日：2003-03-28

申请号：JP2001284487

申请日：2001-09-19

Applicant: IBM

Inventor： ODAOHARA SHIGEFUMI ,  KOBAYASHI MASAKI ,  AOKI TAKAAKI

IPC: G06F1/26 ,  H01M10/48 ,  H02J7/00 ,  H02J7/02

Abstract: PROBLEM TO BE SOLVED: To provide an apparatus which can identify a backup charging state of a battery, indicate the state and is convenient for a user to use. SOLUTION: An intelligent battery 52 for charging/discharging is mounted to a computer apparatus which supplies a power to a system body from the intelligent battery 52. The system body has a battery connection confirmation terminal 76 via which the connection of the intelligent battery 52 is confirmed, an embedded controller 41 which, if the prescribed communication with the CPU 62 of the intelligent battery 52 cannot be carried out after the information that the intelligent battery 52 is in a connection state is obtained from the battery connection confirmation terminal 76, decides that the intelligent battery 52 is in the backup charging state, and a display which indicates that the intelligent battery 52 is in the charging state to a user when it is decided by the embedded controller 41 that the intelligent battery 52 is in the backup charging state.

公开(公告)号：JPH10241133A

公开(公告)日：1998-09-11

申请号：JP4532797

申请日：1997-02-28

Applicant: IBM

Inventor： TSUDA SHINGO ,  DILL GEEKI ,  TAKEUCHI KOICHI ,  KOBAYASHI MASAKI

IPC: G11B5/60 ,  G11B5/48 ,  G11B5/55 ,  G11B21/02 ,  G11B21/21 ,  H05K1/18

Abstract: PROBLEM TO BE SOLVED: To provide an FPC cable having advantageous noise-resisting performance, manufacturing costs, mount workability to a carriage and maintenance efficiency. SOLUTION: The FPC cable is comprised on an FPC 11, a spacer and a reinforcing plate. A head pad 102 where a head wire is bonded is formed at a pad formation part A of a pattern face 100a of the FPC 11. A preamplifier chip 101 is mounted to an element-mounting part B. The head pad 102 and preamplifier chip 101, and the preamplifier chip 101 and an end part at the side of an I/O are respectively linearly connected by wiring patterns 105a, 105b. A gap is formed in the spacer to store the preamplifier chip 101. The pad formation part A is folded to insert the reinforcing plate, and the spacer is engaged to the element-mounting part B, whereby an end part at the side of a magnetic head is constituted.

公开(公告)号：JPH0744147A

公开(公告)日：1995-02-14

申请号：JP18968293

申请日：1993-07-30

Applicant: IBM

Inventor： KOBAYASHI MASAKI ,  KATAOKA RIEKO ,  NAITO MASAHIRO

IPC: G09G5/02 ,  G09G1/00 ,  G09G5/04 ,  G09G5/10 ,  G09G5/18 ,  H04N9/72

Abstract: PURPOSE: To provide a means for exactly displaying black at a place where black should be displayed, and displaying a further clear color picture in the display device of a computer. CONSTITUTION: This controller for a display device is connected with a display device through R, G, and B color information signal lines 4, and horizontal and vertical synchronizing signals 7 and 8, is provided with a means 9 for fetching a black information signal in which N bits are defined as a prescribed pattern from at least one of the R, G, and B color information signal lines 4 constituted of N bit digital signals, and a means for superimposing the fetched black information signal on at least one of the horizontal and vertical synchronizing signals 7 and 8.

公开(公告)号：JPH0695608A

公开(公告)日：1994-04-08

申请号：JP23104492

申请日：1992-08-31

Applicant: IBM

Inventor： KOBAYASHI MASAKI ,  NAITO MASAHIRO

IPC: G09G1/00 ,  H04N3/185 ,  H04N5/68

Abstract: PURPOSE: To perform the high voltage stabilization of a CRT with extremely high accuracy without the need for excessive circuits. CONSTITUTION: This circuit is provided with a driving circuit 7 for generating a voltage amplitude for driving the cathode 6 of the CRT 1 in response to video signals, a low-pass filter provided with resistors R20 and R21 and a capacitor C4 for generating an output voltage from which the high frequency component of the video signals is removed, and a high voltage control circuit 4 for controlling a voltage to be applied to the anode 2 of the CRT 1 in response to the output voltage of the capacitor 4.