公开(公告)号：JP2000214942A

公开(公告)日：2000-08-04

申请号：JP1321599

申请日：1999-01-21

Applicant: IBM

Inventor： TANAKA JUN ,  HORIKOSHI HIDETO ,  NOMURA MASAHIKO ,  USUI HIDEYUKI ,  HORIKOSHI SHOTA ,  TAMURA FUMIO

IPC: G06F12/14 ,  G06F1/00 ,  G06F1/16 ,  G06F21/00 ,  G06F21/06 ,  G06F21/24 ,  G08B13/187 ,  G08B13/24

Abstract: PROBLEM TO BE SOLVED: To provide technique inhibiting access to a computer when the security device of the computer with a security function is illegally removed. SOLUTION: A security device is hardware taking responsibility for a part of the security function of a computer and inhibits access with the following procedures when illegally removed. Data indicating that the security device is mounted on the computer is stored and held in a nonvolatile memory. After that, a procedure to inhibit access to the computer is started with some event such as power-on as a start. Next, it is detected on the basis of the data in memory that the security device has been mounted. It is further detected that the security device is now removed from the computer. When the security device is now removed even through it has been mounted, access to the computer is inhibited.

公开(公告)号：JP2000259571A

公开(公告)日：2000-09-22

申请号：JP5696399

申请日：1999-03-04

Applicant: IBM

Inventor： HORIKOSHI HIDETO ,  ABE NAOKI ,  TANAKA JUN ,  MARUICHI TOMOKI

IPC: G06F1/00 ,  G06F1/26 ,  G06F11/30 ,  G06F15/00 ,  G06F21/00 ,  G06F21/20

Abstract: PROBLEM TO BE SOLVED: To prevent illegal access to a non-contact data carrier system by using a radio frequency identification(RFID) computer, for example, without lowering a performance. SOLUTION: A RFID computer 30 is provided with a CPU 35, an EEPROM 34, communication equipment 31 and 32 and power control units 40 and 41. When the RFID computer 30 in power-on state is passed through a portal gate provided in the entrance/exit of an illegal access prevention zone without authority, that portal gate transmits a signal for setting on a tamper bit 44 in the EEPROM 34. The EEPROM 34, which sets on the tamper bit 44 with this signal, outputs a tamper bit interrupt request signal. The power control units 40 and 41, which receive this signal, turn off the power of the RFID computer 30.

公开(公告)号：JP2005004600A

公开(公告)日：2005-01-06

申请号：JP2003169127

申请日：2003-06-13

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： FUKUSHIMA TOSHIAKI ,  NOMURA TAICHIRO ,  TANAKA JUN ,  OSHITA SHIGERU

IPC: G05D23/19 ,  G06F1/20

CPC classification number: G06F1/20 ,  G05D23/1931 ,  G06F1/206

Abstract: PROBLEM TO BE SOLVED: To provide an information processor capable of adjusting the set temperature for executing temperature control processing, depending on the characteristics of the information processor. SOLUTION: The information processor comprises: a central processing unit; a temperature control information storage section storing the temperature control processing performed for lowering the temperature of the central processing unit while corresponding to the set temperature; a temperature measurement section for measuring the temperature at a measurement location in the central processing unit; a temperature detection section for detecting the fact that the temperature at a detection location in the central processing unit reaches the detection temperature; an offset calculation section calculating offset, a difference between the temperature measured by the temperature measurement section and the detection temperature at the time of detecting the temperature by the temperature detection section; a set temperature correction section calculating the correction value of the setting temperature stored on the temperature control information storage section based on the offset; and a temperature control execution section executing the temperature control processing stored on the temperature control information storage section while corresponding to the set temperature when the temperature measured by the temperature measurement section reaches the correction value of the set temperature. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种能够根据信息处理器的特性来调节用于执行温度控制处理的设定温度的信息处理器。 解决方案：信息处理器包括：中央处理单元; 温度控制信息存储部，存储对应于设定温度而进行的用于降低中央处理单元的温度的温度控制处理; 用于测量中央处理单元中的测量位置处的温度的温度测量部分; 温度检测部，用于检测中央处理单元中的检测位置处的温度达到检测温度的事实; 偏移计算部，计算偏差，由所述温度测量部测量的温度与由所述温度检测部检测温度时的检测温度之间的差; 设定温度校正部，基于所述偏移来计算存储在所述温度控制信息存储部的所述设定温度的修正值; 以及温度控制执行部，其在由所述温度测量部测量的温度达到设定温度的修正值的同时对应于设定温度执行存储在所述温度控制信息存储部上的所述温度控制处理。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2001043142A

公开(公告)日：2001-02-16

申请号：JP20534699

申请日：1999-07-19

Applicant: IBM

Inventor： HORIKOSHI HIDETO ,  YAMAZAKI MITSUHIRO ,  TANAKA JUN

IPC: G06F12/14 ,  G06F1/00 ,  G06F21/00 ,  G06F21/06 ,  G06F21/24

Abstract: PROBLEM TO BE SOLVED: To inhibit access to a computer when the security device of a computer with a security function is illegally detached. SOLUTION: When the computer is powered ON, a POST program is executed and in the setting which makes the security function effective, an RFID chip 33 holds Removal Detect Enable at high level and outputs it to the control side of an analog switch 67 and one input side of a NAND element 63. A 1st short-circuit element 36 is isolated by the attachment or detachment of an RF antenna 37 to disconnect terminals 71 and 73 and an INTR signal of keyboard inhibition is outputted with the high-level signal of the element 63, inhibiting access to the computer. When the power source is OFF and the RF antenna is attached or detached, an analog switch 67 is turned OFF to cut off the electric power from a lithium battery to a CMOS memory 50, thereby inhibiting access to the computer.

公开(公告)号：JP2001092553A

公开(公告)日：2001-04-06

申请号：JP25476999

申请日：1999-09-08

Applicant: IBM

Inventor： KATO NAOTAKA ,  TANAKA JUN

IPC: G06F1/00 ,  G06F1/32 ,  G06F21/00

Abstract: PROBLEM TO BE SOLVED: To prevent a computer from being illegally used by providing a means enabling a regal user to easily check whether the computer has been illegally used or not. SOLUTION: In a basic input/output system(BIOS), in every cold boot of a computer system (YES in step 100), '1' is added to the value of a power ON frequency storing area formed in an EEPROM (104) and the power ON frequency after the addition of '1' is displayed (106). In a case other than the input of a supervisor password (NOT in step 108 or 112), a block provided with the power ON frequency storing area out of plural blocks in the EEPROM (electrically erasable programmable read-ony mememory) is locked (the rewriting of stored contents is interrupted).