公开(公告)号：JP2000305677A

公开(公告)日：2000-11-02

申请号：JP10559599

申请日：1999-04-13

Applicant: IBM

Inventor： KINOSHITA HIDENORI ,  OGAWA MITSURU ,  MIYAJI SHINOBU ,  KATO ATSUYUKI ,  KOBAYASHI YASUHIRO ,  YOMO TAKATSUGU

IPC: G06F1/16 ,  G06F1/18 ,  G06F1/26 ,  G06F3/00 ,  G06F3/06

Abstract: PROBLEM TO BE SOLVED: To perform hot-undocking of an expanding device, for instance, without making a portable PC body shutdown. SOLUTION: In the case an eject event is detected when the portable PC body 11 having a main battery 21 is subjected to hot-undocking from an expanding device 41 having a sub battery 42, the state of the battery 42 is judged. As a result, when the battery 42 is in the middle of discharge, a power supply route to the portable PC body 11 is switched from the sub battery to the main battery. When the battery 42 is in the middle of being charged, the charging is stopped. Then, hot-undock processing is carried out.

公开(公告)号：JP2000305674A

公开(公告)日：2000-11-02

申请号：JP10494499

申请日：1999-04-13

Applicant: IBM

Inventor： KINOSHITA HIDENORI ,  KOBAYASHI YASUHIRO ,  KATO ATSUYUKI ,  MIYAJI SHINOBU

IPC: G06F3/00 ,  G06F1/16 ,  G06F9/48 ,  G06F9/46

Abstract: PROBLEM TO BE SOLVED: To improve operability about a method that undocks an optional number of stages structure from a multistage dock structure docking a plurality of expanding devices having respective inherent resources to a portable PC body. SOLUTION: For instance, when only the portable PC body 11 is undocked from a three-stage dock structure in which 1st and 2nd expanding devices 31 and 41 are docked with the portable PC body 11, the device 31 is made to generate an undock event. An IDE device 32 held by the device 31 and a PCI device 42 held by the device 41 are released from the control of an operating system at occurrence of a undock event as turning point, and their interfaces are also electrically separated. Operability is improved because an object to be undocked can be grasped in a unified way by both sense of sight and operation.

公开(公告)号：JP2003140784A

公开(公告)日：2003-05-16

申请号：JP2001319361

申请日：2001-10-17

Applicant: IBM

Inventor： KOBAYASHI YASUHIRO

IPC: G06F1/32 ,  G06F1/04 ,  G06F1/16 ,  G06F3/00 ,  H04L12/40

Abstract: PROBLEM TO BE SOLVED: To provide a computer for executing prescribed control according to the presence or absence of the connection of a USB connection device to a USB controller capable of executing control during the non-connection of the USB connection device as necessary at the time of specifying it even during the connection to the USB controller. SOLUTION: At the time of judging that a USB connection device is not necessary even during the connection of the USB connection device, a user operates the prescribed key of a notebook-sized personal computer 10 in order to output a USB invalidation signal. Thus, a switch device 64 opens a D+ line 61 and a D- line 62, and a USB controller 39 judges that the connection of the USB connection device is absent. As a result, the notebook-sized personal computer 10 can be switched to a power saving mode as necessary even during the connection of the USB connection device.

公开(公告)号：JP2001075679A

公开(公告)日：2001-03-23

申请号：JP23565099

申请日：1999-08-23

Applicant: IBM

Inventor： KOBAYASHI YASUHIRO

IPC: G06F1/24 ,  G06F1/26

Abstract: PROBLEM TO BE SOLVED: To attain the power interruption of a computer by a simple constitution without depending on the state of a computer. SOLUTION: During the operation of a computer, a Power signal, an Reset signal, and a Function signal are turned into a high level at a normal position in a power source switch 46 (A), and the Function signal is switched into a low level signal when a function key 42A is depressed, and only the key 42A is validated (B). When the power source switch 46 is moved to an instructed position, and the key 42A is not depressed, only the power signal is validated, and power supply or power interruption can be instructed (C). Then, when the power source is moved to the instructed position, and the key 42A is depressed, the Reset signal is switched into a low level signal, and the Rest signal is validated by the key 42A (D). Therefore, when the power switch 46 is moved to the instructed position, and the key 42A is depressed, the power source can be forcedly interrupted regardless of the activated state of the computer.