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    3.
    发明专利
    未知

    公开(公告)号：BR9402942A

    公开(公告)日：1995-06-20

    申请号：BR9402942

    申请日：1994-07-26

    Applicant: IBM

    Inventor： COMBS JAMES L ,  CRUMP DWAYNE T ,  PANCOAST STEVEN T

    IPC: G06F1/32 ,  G06F9/445 ,  G06F9/46 ,  G06F11/14 ,  G06F12/16 ,  G06F11/00

    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.

    Protected Programmable Memory Cartridge and Computer System Using Same
    4.
    发明专利
    Protected Programmable Memory Cartridge and Computer System Using Same 未知

    公开(公告)号：CA2130979A1

    公开(公告)日：1995-06-17

    申请号：CA2130979

    申请日：1994-08-26

    Applicant: IBM

    Inventor： COMBS JAMES L

    IPC: G06F1/00 ,  G06F12/14 ,  G06F21/00 ,  G06F21/22 ,  G06F21/24

    Abstract: A computer system for high-performance video and audio manipulations comprising a locked memory cartridge (14) and an audio/video/compact disk (CD) drive controller/coprocessor (32). The computer system has a central processing unit (30) (CPU) with at least one bus associated therewith, with the bus having at least one bus line. The cartridge comprises a readable memory (50), a memory control circuit (54), a lock control circuit (56), and a connector (376) all in circuit communication with each other. The connector allows the memory, the memory control circuit, and the lock control circuit to be pluggably connected in circuit communication with the CPU. The memory control circuit scrambles some of the bus lines, thereby scrambling the data in the memory on reset, and unscrambles the bus lines responsive to inputs from the lock control circuit. The lock control circuit monitors the bus, waiting for a proper combination of bus values to be asserted onto the bus, at which time the lock control circuit causes the memory control circuit to unscramble the bus lines. The audio/video/CD drive controller/coprocessor comprises a CPU interface, a CPU cache, a memory controller, a memory bus arbitrator, a DRAM refresher, a video controller, a CD drive controller, a digital signal processor (DSP) sound coprocessor, and a "blitter" graphics coprocessor in an integrated package.

    5.
    发明专利
    未知

    公开(公告)号：DE69431275D1

    公开(公告)日：2002-10-10

    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

    IPC: G06F1/16 ,  G06F1/00 ,  G06F1/26 ,  G06F1/30 ,  G06F1/32

    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.

    6.
    发明专利
    未知

    公开(公告)号：DE69518683T2

    公开(公告)日：2001-08-02

    申请号：DE69518683

    申请日：1995-03-06

    Applicant: IBM

    Inventor： BERTRAM RANDAL L ,  COMBS JAMES L

    IPC: G06F3/041 ,  G06F3/038 ,  G06F3/048 ,  G06F3/033

    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.

    9.
    发明专利
    未知

    公开(公告)号：DE69428010T2

    公开(公告)日：2002-04-18

    申请号：DE69428010

    申请日：1994-06-30

    Applicant: IBM

    Inventor： COMBS JAMES L ,  CRUMP DWAYNE T ,  PANCOAST STEVEN T

    IPC: G06F1/32 ,  G06F1/00 ,  G06F9/445 ,  G06F11/14

    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.

    10.
    发明专利
    未知

    公开(公告)号：ES2149923T3

    公开(公告)日：2000-11-16

    申请号：ES95301439

    申请日：1995-03-06

    Applicant: IBM

    Inventor： BERTRAM RANDAL L ,  CAPACI GERALD J ,  COMBS JAMES L

    IPC: G06F3/02 ,  G06F3/023 ,  G06F3/041 ,  G06F13/00 ,  G06F3/033

    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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