Patents
Patents for G06F 11 - Error detection; Error correction; Monitoring (140,345)
04/1989
04/04/1989US4819154 Memory back up system with one cache memory and two physically separated main memories
04/04/1989US4819150 Array for simulating computer functions for large computer systems
03/1989
03/30/1989DE3731339A1 Method of monitoring memory devices in digitally controlled communication systems
03/30/1989DE3731097A1 Circuit for monitoring a device with two microprocessors, in particular a motor vehicle electronic system
03/29/1989EP0308660A2 Device for producing a test-compatible, largely fault tolerant configuration of redundantly implemented VLSI systems
03/28/1989US4817118 Recording the states of data signals
03/28/1989US4817095 Byte write error code method and apparatus
03/28/1989US4817093 Method of partitioning, testing and diagnosing a VLSI multichip package and associated structure
03/28/1989US4817092 Threshold alarms for processing errors in a multiplex communications system
03/28/1989US4817091 Fault-tolerant multiprocessor system
03/28/1989US4817052 Semiconductor memory with an improved dummy cell arrangement and with a built-in error correcting code circuit
03/28/1989US4817035 Method of recording in a disk memory and disk memory system
03/28/1989US4817033 Signal detecting circuit
03/28/1989US4817004 Electronic postage meter operating system
03/28/1989US4816994 Rule acquisition for expert systems
03/28/1989US4816990 Method and apparatus for fault-tolerant computer system having expandable processor section
03/28/1989US4816989 Synchronizer for a fault tolerant multiple node processing system
03/28/1989US4816776 Integrated circuit configuration and method for monitoring a co-integrated oscillator
03/28/1989US4816750 Automatic circuit tester control system
03/28/1989US4816656 IC card system
03/22/1989EP0308086A2 Multiplexed built-in test equipment
03/22/1989EP0308056A2 Peripheral device initiated partial system reconfiguration
03/22/1989EP0308043A2 Apparatus and method for tracking and identifying printed circuit assemblies
03/22/1989EP0307958A2 Eeprom system with bit error detecting function
03/22/1989EP0307401A1 Method and apparatus for providing variable reliability in a telecommunication switching system.
03/21/1989US4815077 Test system for electronic devices with radio frequency signature extraction means
03/21/1989US4815076 Reconfiguration advisor
03/21/1989US4815028 Data recovery system capable of performing transaction processing in parallel with data recovery processing
03/21/1989US4815025 Arrangement for supervising a data processing system
03/21/1989US4814979 Network to transmit prioritized subtask pockets to dedicated processors
03/21/1989US4814971 Virtual memory recovery system using persistent roots for selective garbage collection and sibling page timestamping for defining checkpoint state
03/21/1989US4814872 Digital video probe system
03/21/1989US4814589 Information transfer and use, particularly with respect to objects such as gambling chips
03/21/1989CA1251575A1 Automatic test system having a "true tester-per-pin" architecture
03/21/1989CA1251569A1 Diagnostic circuit utilizing bidirectional test data comparisons
03/16/1989EP0235250A4 Harmonic sampling logic analyzer.
03/16/1989DE3829739A1 Redundancy arrangement for information transfer in a hierarchically organised bus network
03/15/1989EP0307191A2 Control system with diagnosis function
03/15/1989EP0307075A2 Method and apparatus for measuring program execution
03/15/1989EP0306855A2 Arrangement for loading the parameters into active modules in a computer system
03/15/1989EP0306757A2 Error detection and correction circuit
03/15/1989EP0306644A2 Data processor having a break function
03/15/1989EP0167540B1 Processing system tolerant of loss of access to secondary storage
03/15/1989EP0097159B1 Two bit per symbol sec/ded code
03/14/1989US4813044 Method and apparatus for detecting transient errors
03/14/1989US4813043 Semiconductor test device
03/14/1989US4813042 Process for monitoring a data processing unit and a system for performing the process
03/14/1989US4813009 Method and apparatus for determining internal status of a processor
03/14/1989US4812996 Signal viewing instrumentation control system
03/14/1989US4812964 Signal tracing control system for PMC
03/14/1989US4812840 Multiple mode switching means
03/09/1989WO1989002125A1 Error detection system for instruction address sequencing
03/09/1989WO1989002124A1 Fault-tolerant output circuits
03/09/1989WO1989002122A1 Arrangement and process for detecting and localizing faulty circuits in a storage component
03/09/1989WO1989001661A3 Process and device for identifying a faulty circuit in a personal computer
03/09/1989DE3728561A1 Method of testing a monitoring device for a microprocessor
03/09/1989DE3728232A1 Method for testing circuit boards
03/08/1989EP0306348A2 Dual rail processors with error checking on i/o reads
03/08/1989EP0306252A2 Fault tolerant computer system input/output interface
03/08/1989EP0306244A2 Fault tolerant computer system with fault isolation
03/08/1989EP0306211A2 Synchronized twin computer system
03/08/1989EP0306209A2 Dual rail processors with error checking at single rail interfaces
03/08/1989EP0305987A2 Self-correcting semiconductor memory device and microcomputer incorporating the same
03/08/1989EP0305530A1 High-speed floating point arithmetic unit
03/08/1989EP0305472A1 Error correction of digital image data by means of image redundancy
03/08/1989EP0097234B1 Method and apparatus for restarting a computing system
03/08/1989EP0090019B1 Multiple source clock encoded communications error detection circuit
03/07/1989US4811388 Telecommunication network including a central back-up memory
03/07/1989US4811347 Apparatus and method for monitoring memory accesses and detecting memory errors
03/07/1989US4811345 Methods and apparatus for providing a user oriented microprocessor test interface for a complex, single chip, general purpose central processing unit
03/07/1989US4811343 On-chip on-line AC and DC clock tree error detection system
03/07/1989US4811283 Recovery system for queued data transfer synch. loss utilizing error flag and status memories
03/07/1989US4811279 Secondary storage facility employing serial communications between drive and controller
03/07/1989US4811278 Secondary storage facility employing serial communications between drive and controller
03/07/1989US4811276 Virtual computer diagnostic system with comparative monitoring of timestamped controller check signals and timestamped commands of individual virtual machines
03/07/1989US4811200 Multiple microprocessor watchdog system
03/07/1989US4810958 Arrangements and methods for testing various electronic equipments
03/01/1989EP0305217A2 An automatic test process for logic devices
03/01/1989EP0305106A2 Bus error processing system
03/01/1989EP0305068A2 Controlling asynchronously operating peripherals
03/01/1989EP0304999A1 Semiconductor memory comprising an on-chip error correction device, and integrated circuit comprising such a semiconductor memory
03/01/1989EP0304948A2 Data processor including testing structure for barrel shifter
03/01/1989EP0304848A2 System for diagnosing defects in electronic assemblies
03/01/1989EP0304556A2 High availability multiprocessing
03/01/1989EP0077204B1 Error-correcting memory with low storage overhead and fast correction mechanism
02/1989
02/28/1989US4809280 Microcomputer system with watchdog timer
02/28/1989US4809279 Enhanced parity detection for wide ROM/PROM memory structure
02/28/1989US4809278 Specialized parity detection system for wide memory structure
02/28/1989US4809276 Memory failure detection apparatus
02/28/1989US4809273 Device for verifying operation of a checking code generator
02/28/1989US4809228 Semiconductor memory device having controllable redundant scheme
02/28/1989US4809167 Circuitry for emulating single chip microcomputer without access to internal buses
02/28/1989US4809160 Privilege level checking instruction for implementing a secure hierarchical computer system
02/28/1989US4808114 I/O unit terminal base with external connection terminals, socket for mounting relays, and connector for cable to CPU
02/23/1989WO1989001661A2 Process and device for identifying a faulty circuit in a personal computer
02/23/1989WO1989001660A1 Apparatus for computing multiplicative inverses in data encoding decoding devices
02/23/1989EP0211063A4 Redundant control system for automatic forming machine.
02/23/1989DE3725750A1 Multiprocessor system e.g. for electronic fuel injection device - has parallel processors coupled via respective operational amplifiers to common output stage
02/22/1989EP0303856A2 Method and apparatus for maintaining duplex-paired devices by means of a dual copy function
02/22/1989EP0303855A2 Identification of data storage devices