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公开(公告)号：CA2142798A1
公开(公告)日：1995-09-19
申请号：CA2142798
申请日：1995-02-17
Applicant: IBM
Inventor： BERTRAM RANDAL L , COMBS JAMES L
Abstract: A computer system comprising a central processing unit (CPU) configured to accept coordinate type data from a touchpad or the like. The CPU has an operating system executing thereon with special support for interfacing to the touchpad. The operating system has the following capabilities: (1) mapping out geometric regions of the touchpad and assign the regions to specific region identifiers responsive to application programs and (2) determining the region identifier of a touched region and passing that region identifier to the application program. Support is also provided for changing the units of the commands used to define the regions.
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公开(公告)号：CA2120055A1
公开(公告)日：1995-01-27
申请号：CA2120055
申请日：1994-03-28
Applicant: IBM
Inventor： COMBS JAMES L , CRUMP DWAYNE T , PANCOAST STEVEN T
Abstract: A computer system having four states of power management: a normal operating state, a standby state, a suspend state, and an off state. The standby state is characterized by devices, such as a video controller and a hard drive, being placed into a low-power mode transparent to the operating system and the applications executing on the computer system. The suspend state is characterized by executing code being interrupted and the state of the computer system being saved to a file on the hard drive in such a manner that system power may be removed after the state of the computer system is saved to the hard drive. Later, after system power is restored, the state of the computer system is resumed by reading from the hard drive and loading it in such a manner that the operating system and application programs are not adversely affected. The normal operating state and the off state correspond to the typical on and off states of more conventional computer systems. The suspend/resume/standby feature is implemented at a low cost using many standard components.
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公开(公告)号：ES2149924T3
公开(公告)日：2000-11-16
申请号：ES95301440
申请日：1995-03-06
Applicant: IBM
Inventor： BERTRAM RANDAL L , COMBS JAMES L
Abstract: A computer system comprising a central processing unit (CPU) configured to accept coordinate type data from a touchpad or the like. The CPU has an operating system executing thereon with special support for interfacing to the touchpad. The operating system has the following capabilities: (1) mapping out geometric regions of the touchpad and assign the regions to specific region identifiers responsive to application programs and (2) determining the region identifier of a touched region and passing that region identifier to the application program. Support is also provided for changing the units of the commands used to define the regions.
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公开(公告)号：DE69518681D1
公开(公告)日：2000-10-12
申请号：DE69518681
申请日：1995-03-06
Applicant: IBM
Inventor： BERTRAM RANDAL L , CAPACI GERALD J , COMBS JAMES L
Abstract: An input device for a computer system having a central processing unit mounted in a central enclosure comprising a keyboard and touchpad mounted in a hinged bivalve enclosure. The input device is tethered to the central enclosure by a conductive tether.
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公开(公告)号：CA2120053A1
公开(公告)日：1995-01-24
申请号：CA2120053
申请日：1994-03-28
Applicant: IBM
Inventor： COMBS JAMES L , CRUMP DWAYNE T , PANCOAST STEVEN T
Abstract: A method of saving and restoring the state of a CPU operating code in protected mode on a computer system. The save method makes use of BIOS operating in shadow RAM located in a region where linear addresses equal physical addresses while saving the state of the CPU. The registers that cannot be directly saved to memory are determined by searching the system memory for data structures that correspond to the particular register. The restore method uses dummy page tables that point to the shadowed BIOS to allow the CPU to reenter protected mode without generating a protection fault.
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Patent Agency Ranking
公开(公告)号：DE69431275T2
公开(公告)日：2003-05-22
申请号：DE69431275
申请日：1994-06-30
Applicant: IBM
Inventor： COMBS JAMES L , CRUMP DWAYNE T , PANCOAST STEVEN T , KOZEL JERRY T , CLARK MICHAEL W
Abstract: A computer system having a suspend/resume capability in addition to the normal operating state and the off state. Closure events of single momentary pushbutton switch control changes between the normal operating state, the suspend state, and the off state, depending on the value of a flag. If the flag is set in a certain state, closure events of the switch cause the computer system to change back and forth between the normal operating state and the off state. If the flag is set in a different state, closure events of the switch cause the computer system to change back and forth between the normal operating state and the suspend state. The switch also controls the video subsystem of the computer system such that pressing the switch blanks the video display terminal giving the user instantaneous feedback of the switch press.
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公开(公告)号：ES2181701T3
公开(公告)日：2003-03-01
申请号：ES94304824
申请日：1994-06-30
Applicant: IBM
Inventor： COMBS JAMES L , CRUMP DWAYNE T , PANCOAST STEVEN T
Abstract: A computer system having four states of power management: a normal operating state, a standby state, a suspend state, and an off state. The standby state is characterized by devices, such as a video controller and a hard drive, being placed into a low-power mode transparent to the operating system and the applications executing on the computer system. The suspend state is characterized by executing code being interrupted and the state of the computer system being saved to a file on the hard drive in such a manner that system power may be removed after the state of the computer system is saved to the hard drive. Later, after system power is restored, the state of the computer system is resumed by reading from the hard drive and loading it in such a manner that the operating system and application programs are not adversely affected. The normal operating state and the off state correspond to the typical on and off states of more conventional computer systems. The suspend/resume/standby feature is implemented at a low cost using many standard components.
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公开(公告)号：AT223588T
公开(公告)日：2002-09-15
申请号：AT94304824
申请日：1994-06-30
Applicant: IBM
Inventor： COMBS JAMES L , CRUMP DWAYNE T , PANCOAST STEVEN T
Abstract: A computer system having four states of power management: a normal operating state, a standby state, a suspend state, and an off state. The standby state is characterized by devices, such as a video controller and a hard drive, being placed into a low-power mode transparent to the operating system and the applications executing on the computer system. The suspend state is characterized by executing code being interrupted and the state of the computer system being saved to a file on the hard drive in such a manner that system power may be removed after the state of the computer system is saved to the hard drive. Later, after system power is restored, the state of the computer system is resumed by reading from the hard drive and loading it in such a manner that the operating system and application programs are not adversely affected. The normal operating state and the off state correspond to the typical on and off states of more conventional computer systems. The suspend/resume/standby feature is implemented at a low cost using many standard components.
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公开(公告)号：DE69428010D1
公开(公告)日：2001-09-27
申请号：DE69428010
申请日：1994-06-30
Applicant: IBM
Inventor： COMBS JAMES L , CRUMP DWAYNE T , PANCOAST STEVEN T
Abstract: A method of saving and restoring the state of a CPU operating code in protected mode on a computer system. The save method makes use of BIOS operating in shadow RAM located in a region where linear addresses equal physical addresses while saving the state of the CPU. The registers that cannot be directly saved to memory are determined by searching the system memory for data structures that correspond to the particular register. The restore method uses dummy page tables that point to the shadowed BIOS to allow the CPU to reenter protected mode without generating a protection fault.
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公开(公告)号：DE69518681T2
公开(公告)日：2001-05-31
申请号：DE69518681
申请日：1995-03-06
Applicant: IBM
Inventor： BERTRAM RANDAL L , CAPACI GERALD J , COMBS JAMES L
Abstract: An input device for a computer system having a central processing unit mounted in a central enclosure comprising a keyboard and touchpad mounted in a hinged bivalve enclosure. The input device is tethered to the central enclosure by a conductive tether.
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