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5805790 Fault recovery method and apparatus  
In a fault recovery method for a multi-processor system including a main storage and a plurality of virtual machines which are assigned to a plurality of processors under control of a host...
5802485 Control device including an electrically programmable memory  
A control device has a microcomputer, a memory which has a control program and can be cleared and programmed electrically, a read-only memory and a serial interface. In the read-only memory, a...
5790419 Fail-safe system and method of operation  
A system is provided to automatically terminate a fail-safe state. When an abnormality detection signal of Lo and a pulse having a frequency outside a specified range are input to set and reset...
5784625 Method and apparatus for effecting a soft reset in a processor device without requiring a dedicated external pin  
A system and method for emulating the state of a soft reset within a processor device without requiring a dedicated soft reset external pin associated with said processor device. The novel system...
5774642 Architecture for dynamic service processor exchange providing multitasking environment where multiple processors have access to a system configuration table  
A computer system for dynamic service processor exchange comprising a first, active service processor connected by a network and a maintenance unit (CMU) to a central system (4) and to a second,...
5748948 Reset signal generator  
The present invention relates to a reset signal generator adapted to be used with a microprocessor for generating a reset signal to initialize the microprocessor, which includes an oscillator to...
5745391 Apparatus for and method of turning on and shutting off a computing device  
An apparatus for and method of turning a computer on and off. A switch accepts on and off commands from a user which are transmitted to latch circuitry which, in turn, controls relay control...
5737515 Method and mechanism for guaranteeing timeliness of programs  
In order to prevent data corruption and inconsistency caused by incorrect assumption regarding a presumably failed node and/or program, a fail-fast timer mechanism enforces deadlines, i.e. enforces...
5724599 Message passing and blast interrupt from processor  
The invention involves communication within a multiprocessor system. The multiprocessor system includes a command word bus and a plurality of data processors. Each data processor is connected to...
5701417 Method and apparatus for providing initial instructions through a communications interface in a multiple computer system  
A system for providing initial instructions to a first computer from a second computer through a communications interface connected between the two computers. A decoder causes the first computer to...
5699505 Method and system for automatically collecting diagnostic information from a computer system  
A method is provided for collecting information located within a plurality of hardware elements of a computer system. The hardware elements of the plurality of hardware elements are simultaneously...
5696897 Method and apparatus for a multi-layer system quiescent suspend and resume operation  
The state of a functioning computer operating system is quickly stored onto a nonvolatile storage device such that the computer system may be suspended quickly. To quickly save the state of...
5689430 Internal state determining apparatus  
An internal state determining apparatus according to the present invention includes at least one inner circuit, means for detecting a change in voltage supplied from an external device and...
5682314 Controller apparatus for vehicle  
A controller apparatus for a vehicle includes a computer for controlling devices mounted in the vehicle, and a detector means for detecting the state of the computer immediately before the computer...
5675727 Difference recording apparatus having a processing unit, recording unit, log update section, and log comparator using a classification key in a log of input data  
A difference recording apparatus includes a log comparator, a processing unit, a recording unit, and a log update section. The log comparator detects a log difference by using a classification key...
5673391 Hardware retry trap for millicoded processor  
Retry trap in the processor system detects the occurrence of a hardware retry during a millicode routine. In operation, millicode resets the retry trap to "O" at the start of a millicode sequence...
5657473 Method and apparatus for controlling access to and corruption of information in computer systems  
An apparatus and method restrict the corruption or destruction of data held on a storage medium forming part of a computer system by hostile programs such as "viruses"by employing a "Supervisor"...
5655083 Programmable rset system and method for computer network  
A network includes a plurality of computer systems interconnected by a plurality of communication links. At least one of the computer systems includes a resettable computer and a reset circuit. The...
5644702 Microcomputer, microcomputer containing apparatus, and IC card  
A microcomputer includes a CPU, a RAM for storing data, an oscillation circuit and a battery. The CPU has a first threshold for a power supply voltage for ensuring normal operation. The oscillation...
5636341 Fault processing method and information processing system  
When a fault occurs on a data communication processor that controls data communication between information processors, all information processors connected to the data communication processor are...
5627962 Circuit for reassigning the power-on processor in a multiprocessing system  
A hot spare boot circuit that automatically switches from a non-operational CPU to an operational CPU for powering up the computer system. In the multiprocessor computer system, a first CPU is...
5621887 Fault tolerant disk management system which tests failed disks during varied time intervals which are based upon the criticality associated with the failed disks  
A fault tolerant disk management system supports compound disks which are mirrored, so as to tolerate single point faults in any one physical disk of the compound disk. The system further minimizes...
5619643 Circuit for detecting a fault state in a clock signal for microprocessor electronic devices  
A circuit for generation of a reset signal in an electronic device, of the type comprising a microprocessor interlocked with a circuit generating a clock signal and memories of both the volatile...
5615370 Computer system with automatic degradation/initialization function  
A computer system is provided which is equipped with a plurality of CPUs and has an automatic degradation/initialization function, wherein even if fault occurs in any of the CPUs, the system can be...
5583987 Method and apparatus for initializing a multiprocessor system while resetting defective CPU's detected during operation thereof  
A symmetric multiprocessor system connecting a plurality of CPUs by a common bus initializes itself while defective CPUs are set aside to use only the remaining CPUs when the power is turned on,...
5564010 Reset signal generator, for generating resets of multiple duration  
A reset signal generator includes circuitry for detecting conditions indicating that a reset signal is necessary and generating a reset signal in response. Such conditions may include low power...
5559957 File system for a data storage device having a power fail recovery mechanism for write/replace operations  
The present invention provides a method and apparatus in a data storage device of a data storage system under the control of a microprocessor for preventing a microprocessor stall upon the...
5535367 Demultiplexing initialization data to be transferred to memory through a plurality of registers with error detection data  
Initialization data is received by a memory multiplexer (MEMMUX) and stored in a plurality of registers of the MEMMUX without reading data from memory. The storage of the initialization data in the...
5530946 Processor failure detection and recovery circuit in a dual processor computer system and method of operation thereof  
A dual processor computer system is disclosed that includes a processor failure detection and recovery circuit which initially designates one of the processing units as the lead-off master and the...
5528749 Automatic instrument turn off/on for error correction  
To accomplish automatic error correction in an electronics instrument, the instrument includes a controller, coupled to at least one peripheral unit via a communications bus for bidirectional...
5526267 Control method for a vehicle with main and sub computers  
In a control system for controlling the occurrence of an abnormality in one of the computers mounted on a motor vehicle, a decision is made based upon whether a sub CPU has been reset. In the case...
5524206 Sub-CPU monitoring system including dual port memory  
A multiprocessor system including dual port memories (DPMs), each DPM used as a shared memory circuit for a host CPU circuit and one of sub CPU circuits. Each sub CPU writes an operation...
5513315 System and method for automatic testing of computer software  
A system and method for automatically testing software using a deterministic acceptance test and random command sequence selections to more rapidly uncover errors in computer software. A results...
5511161 Method and apparatus to reset a microcomputer by resetting the power supply  
The invention provides an interunit communication system which comprises a main unit and a plurality of subunits and executes a communication between the units by a microcomputer of each unit. The...
5506990 Key lock system for personal computer  
A system for controlling the operation of computer power and reset switches. A separate key switch enables a user to selectively disable the power and reset switches of the computer. The user has...
5491788 Method of booting a multiprocessor computer where execution is transferring from a first processor to a second processor based on the first processor having had a critical error  
A multiprocessor computer system handles the failure of one or more of its processors without totally disabling the system. On power up, all of the CPUs are deactivated except for a CPU in a first...
5491794 Fault protection using microprocessor power up reset  
In a television receiver, a microprocessor controls a horizontal deflection circuit which is coupled to run mode power supply to define a standby operating mode and a run operating mode. The...
5488706 Retry request system in a pipeline data processing system where each requesting unit preserves the order of requests  
An interface between a storage unit and a system control unit maintains a sequential processing when retrying linestores by providing a single piece of information that the linestore is a "first"...
5454113 Circuit configuration for protecting the operation of a computer-controlled apparatus  
A control unit is controlled by a computer having a reset input. A circuit configuration protects the operation of the control unit by placing a signal at the reset input for restarting the...
5452441 System and method for on-line state restoration of one or more processors in an N module redundant voting processor system  
A system and method for restoring an operating N module redundant NMR) processors when one or more processors is in an out-of-service state. This NMR system comprises N processors each having an...
5430865 Hardware remote reset circuit  
A circuit for resetting a computer upon detection of changes in the signals of an RS-232C communications port in the computer. The changes may indicate an incoming phone call or loss of a...
5423026 Method and apparatus for performing control unit level recovery operations  
Control unit level reset operations in systems having switched point-to-point I/O interface topologies is accomplished by determining and storing channel path identification numbers (CHPID's) and...
5414860 Power management initialization for a computer operable under a plurality of operating systems  
Power management interrupt enabling is done after completion of POST by loading either DOS or OS/2 operating systems in accordance with whichever operating system the computer is setup to operate...
5408648 Method and apparatus for diagnosing CPU for CPU-runaway-preventing circuit  
A method and apparatus for preventing runaway of CPU using a battery voltage as a power source voltage, in which the operation of CPU and the power source voltage of the CPU are inspected at the...
5400341 Control device for controlling a central processing unit on instantaneous voltage drop  
In a control device for controlling a CPU 11 in accordance with an input voltage which is applied to the CPU and which results from a power source voltage, a first detecting circuit 16 produces a...
5384783 Network system and line switching method used therein  
A network system in which a plurality of computers and a terminal device are connected to one another through a node by telecommunication lines, and one computer is designated by the terminal...
5367665 Multi-processor system in a motor vehicle  
The invention is directed to a multi-processor system which includes at least two processors. The system carries out a first sequence of steps when power is switched on and, for a restart during...
5345583 Method and apparatus for momentarily interrupting power to a microprocessor to clear a fault state  
A method and apparatus for providing notice of impending initialization prior to initializing a microprocessor to enable the microprocessor to store operating data prior to initialization and to...
5333285 System crash detect and automatic reset mechanism for processor cards  
A hardware and software mechanism is provided for ensuring that a feature processor card, included with other feature cards in a host system, can be reset without interrupting software running on...
5321830 Reset method when adaptor module is faulty and computer system executing same  
A computer system and method executing a reset method when an adaptor module is faulty is provided. The system comprises processor modules (1), adaptor modules (2), a system bus (3) connecting the...
Matches 301 - 350 out of 418 < 1 2 3 4 5 6 7 8 9 >