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19 records (took 0.02 seconds)

    1.
    发明专利
    未知

    公开(公告)号：DE69230653D1

    公开(公告)日：2000-03-16

    申请号：DE69230653

    申请日：1992-04-27

    Applicant: XEROX CORP

    Inventor： HOLT CHARLES P ,  MCDANIEL JR ,  FEDERICO ANTHONY M ,  RIDER RONALD E ,  LEGG ERNEST L

    IPC: H04L29/10 ,  G06F17/21 ,  G06F17/30 ,  G06F13/00 ,  G06F3/12

    Abstract: A layered document services architecture (10) facilitating operation and interconnection of electronic printing systems with both resident and non-resident work inputs. The architecture has a resource layer (16) providing a series of discrete modules and facilities for processing work; an applications layer (14) for enabling input of work from both resident and non-resident sources including a document services section (26), and a service manager means (40) for coordinating and controlling access to the modules and facilities of the resource layer (16), and a control layer (18) providing an operating system for coupling the resource layer (16) and the application layer (14) together in an operating environment, the control layer (18) including a resource controller (210) for prioritizing and distributing use of the source layer modules and facilities in accordance with program inputs and system operating conditions.

    SOFTWARE CRASH DIAGNOSTIC STRATEGY AND RAM DISPLAY
    2.
    发明专利
    SOFTWARE CRASH DIAGNOSTIC STRATEGY AND RAM DISPLAY 未知

    公开(公告)号：CA1213309A

    公开(公告)日：1986-10-28

    申请号：CA435727

    申请日：1983-08-31

    Applicant: XEROX CORP

    Inventor： SHERRY RANDY ,  FEDERICO ANTHONY M ,  NGUYEN TUAN A

    IPC: G06F11/16 ,  G03G15/00 ,  G03G21/14 ,  G06F11/07 ,  G06F11/32 ,  G06F15/16 ,  G06F15/177

    Abstract: The present invention is a pair of counters associated with the control elements in a complex control system, in particular, counters associated with the intelligent processors in a multiprocessor control. Preferably, the counters are maintained in nonvolatile memory and one of the counters for each remote records software crashes experienced in both standby and run mode. The other counter records total software crashes during normal machine operation. These counters provide information on the location and type of software crashes. In another aspect of the invention, a procedure is provided for the Tech Rep to force the machine into a software crash. The Tech Rep can then interrogate the content of RAM locations before the RAM locations are initialized by the machine reset. The contents of various RAM locations can be selectively displayed for diagnosis.

    MULTIPROCESSOR CONTROL SYNCHRONIZATION AND INSTRUCTION DOWNLOADING
    3.
    发明专利
    MULTIPROCESSOR CONTROL SYNCHRONIZATION AND INSTRUCTION DOWNLOADING 未知

    公开(公告)号：CA1212986A

    公开(公告)日：1986-10-21

    申请号：CA435624

    申请日：1983-08-30

    Applicant: XEROX CORP

    Inventor： FEDERICO ANTHONY M ,  WILCZEK STEPHEN P ,  LEGG ERNEST L

    IPC: G05B15/02 ,  G03G15/00 ,  G06F1/04 ,  G06F13/42 ,  G06F13/00

    Abstract: The present invention is a multiprocessor machine control having at least one processor for performing input and output operations and communicating with a master processor over a communication channel. Common synchronizing signals are conveyed to both the input/output processor and the master processor independent of the Communication channel. This provides the input/output processor with immediate access to timing and synchronizing information for prompt response to general control information from the master processor. The master processor downloads instructions or provides general instructions to the input/output processor. These downloaded instructions are given priority and timely executed without further communication with the master processor. At completion of the operation the master processor is informed that the particular operation has been performed.

    4.
    发明专利
    未知

    公开(公告)号：DE69230653T2

    公开(公告)日：2000-06-08

    申请号：DE69230653

    申请日：1992-04-27

    Applicant: XEROX CORP

    Inventor： HOLT CHARLES P ,  MCDANIEL JR ,  FEDERICO ANTHONY M ,  RIDER RONALD E ,  LEGG ERNEST L

    IPC: H04L29/10 ,  G06F17/21 ,  G06F17/30 ,  G06F13/00 ,  G06F3/12

    Abstract: A layered document services architecture (10) facilitating operation and interconnection of electronic printing systems with both resident and non-resident work inputs. The architecture has a resource layer (16) providing a series of discrete modules and facilities for processing work; an applications layer (14) for enabling input of work from both resident and non-resident sources including a document services section (26), and a service manager means (40) for coordinating and controlling access to the modules and facilities of the resource layer (16), and a control layer (18) providing an operating system for coupling the resource layer (16) and the application layer (14) together in an operating environment, the control layer (18) including a resource controller (210) for prioritizing and distributing use of the source layer modules and facilities in accordance with program inputs and system operating conditions.

    RACE CONTROL SUSPENSION
    6.
    发明专利
    RACE CONTROL SUSPENSION 未知

    公开(公告)号：CA1213305A

    公开(公告)日：1986-10-28

    申请号：CA434935

    申请日：1983-08-19

    Applicant: XEROX CORP

    Inventor： FEDERICO ANTHONY M ,  IPPOLITO RONALD A ,  LEGG ERNEST L

    IPC: G03G21/00 ,  G05B19/042 ,  G05B19/05 ,  G03G15/00 ,  G05B19/417

    Abstract: The present invention is a means to race two or more conditions against each other to trigger a unique control response. In particular, a portion of a machine control is suspended upon the occurrence of conditions such as an input, a time delay, availability of data, or completion of a task. These conditions race against one another. That is, the occurrence of one of the conditions will initiate the response, and all other conditions will then be ignored. The type of response depends upon the particular condition that occurred first.

    SYSTEM STATE CONTROLLER FOR ELECTRONIC IMAGE PROCESSING SYSTEMS
    9.
    发明专利
    SYSTEM STATE CONTROLLER FOR ELECTRONIC IMAGE PROCESSING SYSTEMS 未知

    公开(公告)号：CA2048792C

    公开(公告)日：1997-01-14

    申请号：CA2048792

    申请日：1991-08-08

    Applicant: XEROX CORP

    Inventor： PROKOP PATRICIA A ,  ALLEN IRENE M ,  LEGG ERNEST L ,  FEDERICO ANTHONY M ,  POST DONALD S ,  FLEYSHER DANIEL

    IPC: B41J29/42 ,  B41J29/46 ,  G03G15/00 ,  G03G15/22 ,  G03G21/00 ,  G06F9/46 ,  G06F9/48 ,  G06T1/00 ,  H04N1/23 ,  H04N1/32

    Abstract: A state controller for an electronic reprographic system for controlling system operations when processing requests in which the system has a plurality of hardware and software system components providing discrete services for processing requests and maintaining operation of the system, and job programming means including a display screen for inputting requests, including: a state holder for monitoring the current operating state of the system components; plural discrete job processing virtual machines with each of the virtual machines having at least one service associated with it for implementing the virtual machine; each of the services having at least one of the system components for carrying out the service; and a scheduler for managing resources of and setting priorities for the virtual machines to process the requests in an efficient manner, the scheduler being adapted to cause memory from a first one of the virtual machines to be distributed to a second one of the virtual machines when the second one of the virtual machines requests more memory than is normally allocated to it.

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