公开(公告)号：JPH09162730A

公开(公告)日：1997-06-20

申请号：JP31024195

申请日：1995-11-29

Applicant: IBM

Inventor： IDEI SEIICHI ,  ISHIKAWA TAKUYA

IPC: H04N5/12 ,  G09G1/16 ,  G09G3/36 ,  G09G5/18 ,  H03L7/099 ,  H03L7/10 ,  H03L7/18

Abstract: PROBLEM TO BE SOLVED: To maintain low noise by means of a main loop with a low loop gain at the time of locking and to obtain a wide frequency acquiring band by the sub-loop of a high conversion gain controlled by a one chip microcomputer. SOLUTION: The oscillation frequency of VCO 50 is prescribedly frequency- divided by a variable frequency divider 14 and phase-compared with a H-Sync signal by a phase comparator 18. A phase comparing output is fed back to a variable capacitor Cf 54 for fine control through a charge pump 30 and LPF 34 to constitute the main loop. As one with small dC/dV is used for the variable capacitor Cf 54, the loop gain is low and the influence of noise is hardly received. On the other hand, for a variable capacitor for coarse control Cc 52, one with satisfactorily large dC/dV is used. At the time of unlocking, a microcomputer 10 changes the output of D/A converter 66. As the conversion gain of a coarse oscillation circuit is large, the oscillation frequency changes large. At the time of not being locked after waiting the acquisition time of the main loop, this processing is repeated again.

公开(公告)号：JP2003204676A

公开(公告)日：2003-07-18

申请号：JP2002002163

申请日：2002-01-09

Applicant: IBM

Inventor： IDEI SEIICHI

IPC: H01R31/06 ,  H02M7/04 ,  H02M7/12

Abstract: PROBLEM TO BE SOLVED: To provide an AC-DC adaptor which can save energy and power cost through power saving by putting it in a power saving mode at no load, thereby reducing wasteful power consumption, and to provide an apparatus connected to the adaptor, and a control method for them. SOLUTION: This AC-DC adaptor (100) can be connected with an apparatus for supplying DC power by means of a power (VCC) line (14) and a ground (GND) line (16) and includes a controller (34), first means (32 and 38) which are connected to the GND line and the controller and detect a short-circuit current between VCC line and the GND line and generate a power saving mode signals (overcurrent signal) which is sent to the controller, and second means (42, 44, and 46), which are connected to the VCC line and the controller and detect the trigger voltage supplied to the VCC line and generate reset signals to be sent to the controller. COPYRIGHT: (C)2003,JPO

公开(公告)号：JPH06225176A

公开(公告)日：1994-08-12

申请号：JP31982392

申请日：1992-11-30

Applicant: IBM

Inventor： IDEI SEIICHI ,  KATAOKA RIEKO ,  KOBAYASHI MASAKI

IPC: G09G1/00 ,  G09G1/16 ,  H04N5/14 ,  H04N5/16

Abstract: PURPOSE: To lower the source voltage of a final-stage amplifier, to reduce heat generation and electromagnetic wave radiation, and to improve the reliability by performing cutoff adjustment, luminance adjustment, etc., of a CRT by a clump circuit which is separated from the final-stage amplifier in term of direct current. CONSTITUTION: The source voltage B1 of the final-stage amplifier 5 is only high enough to secure the dynamic range needed for the reference DC level of an analog video signal after amplification and the analog video signal to be amplified. Then the cutoff adjustment of the CRT is made by applying a DC voltage to the base (C point) of a transistor 28 by a variable resistor 26 and the luminance adjustment of the CRT screen is made by applying a control voltage to the base (A point) of a transistor 27. Eventually, the cutoff adjustment, luminance adjustment, etc., of the CRT are made by controlling the clamp voltage of the clamp circuit 19 separated from the final-stage amplifier 5 in terms of direct current. Therefore, the source voltage of the final-stage amplifier 5 is reducible approximately to a half as high as usual.

公开(公告)号：JP2007299230A

公开(公告)日：2007-11-15

申请号：JP2006126989

申请日：2006-04-28

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： MOTAI SEIJI ,  IDEI SEIICHI ,  KONO TAKETOSHI ,  AOYAMA NOBORU

IPC: G06F1/16

CPC classification number: G06F1/162 ,  F21V7/0008 ,  F21V33/0052 ,  F21Y2115/10 ,  G06F1/1677 ,  G06F1/1679 ,  G06F1/1684

Abstract: PROBLEM TO BE SOLVED: To illuminate a keyboard or the like without newly forming a projected part on the display screen side of a cover unit in a notebook computer. SOLUTION: A portable computer having a body unit including a keyboard and a cover unit having a display screen on one surface is provided with: (a) a latch arranged in the vicinity of the upper end edge part of the cover unit; (b) a latch receiving part which is arranged in the body unit, and when the cover unit is closed, is engaged with the latch to fix the body unit and the cover unit on the closed position; (c) a light source embedded from the surface of the cover unit in the vicinity of the latch; and (d) a light reflection surface capable of reflecting light from the light source to the keyboard in the opened state of the cover in order to illuminate the keyboard. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：在不在笔记本计算机的盖单元的显示屏侧上新形成突出部分的情况下照亮键盘等。 解决方案：具有包括键盘的主体单元和在一个表面上具有显示屏的盖单元的便携式计算机设置有：（a）布置在盖单元的上端边缘部分附近的闩锁; （b）闩锁接收部件，其布置在主体单元中，并且当盖单元关闭时，与闩锁接合以将主体单元和盖单元固定在关闭位置; （c）在所述闩锁附近从所述盖单元的表面嵌入的光源; 以及（d）能够在盖的打开状态下将来自光源的光反射到键盘的光反射表面，以便照亮键盘。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2009118244A

公开(公告)日：2009-05-28

申请号：JP2007289757

申请日：2007-11-07

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： TSUKAMOTO YASUSHI ,  NUMANO KAZUAKI ,  HIROMITSU TOSHIAKI ,  IDEI SEIICHI

IPC: H04L1/00

CPC classification number: H03M13/13 ,  H03M13/373 ,  H03M13/6547 ,  H04L1/0057

Abstract: PROBLEM TO BE SOLVED: To efficiently compute an error correction code with respect to data transmitted at real time such as moving image or the like.
SOLUTION: A transmitter for continuously and sequentially transmitting data, whose regeneration unit is variable, is provided. The transmitter includes an obtaining unit which obtains sequentially the data to be transmitted one by one, a buffer for storing an error correction code for correcting error generated in the data by transmission, a calculation unit which renews the buffer by the exclusive OR by calculating the exclusive OR of the error correcting code stored already in the buffer and the data of the part obtained newly at each time when the data in the obtained part arrives at a predetermined size, and a transmission device which transmits sequentially the data of the obtained part and transmits by reading the error correcting code out of the buffer at each time when the calculating unit reads out the exclusive OR with respect to the data having a size corresponding to the regenerating unit.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：有效地计算关于实时传输的数据（例如运动图像等）的纠错码。

解决方案：提供用于连续且顺序地发送其再生单元是可变的数据的发射器。 所述发送机包括获取单元，所述获取单元依次顺序地获得要被发送的数据，缓冲器，用于存储用于通过发送来校正在所述数据中产生的错误的纠错码;计算单元，其通过计算所述异或来更新所述缓冲器 当所获得的部分中的数据达到预定的大小时，已经存储在缓冲器中的纠错码的异或与每次新得到的部分的数据进行异或;以及发送装置，顺序地发送所获得的部分的数据，以及 每当计算单元读出与具有与再生单元相对应的大小的数据的异或时，通过从缓冲器读出纠错码来发送。 版权所有（C）2009，JPO＆INPIT