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7624336 |
Selection of status data from synchronous redundant devices
Techniques are provided for selecting status data. Redundant views are obtained from multiple synchronous redundant devices. It is determined that the redundant views from the multiple synchronous...
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7546518 |
Received data compensating device
Provided is a compensating device for a received data can be used in a wide application by a single apparatus for various wiring configurations and transmission media. The compensating device...
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7546496 |
Packet transmission device and packet transmission method
A packet transmission device that is connected to a plurality of communication lines, and transmits a packet received, includes a failure detecting unit that monitors a condition of the...
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7536632 |
Method for monitoring data processing system availability
A method for monitoring the availability of a data processing system is proposed. For example, the system runs a management application, which involves the periodic transmission of blocks of data...
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7512873 |
Parallel processing apparatus dynamically switching over circuit configuration
A parallel processing apparatus dynamically switching over a circuit configuration includes a plurality of computing elements, a network establishing connections between the plural computing...
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7489744 |
Turbo decoding method and apparatus for wireless communications
In a communication system 10, a method and apparatus provide for decoding a sequence of turbo encoded data symbols. The channel nodes R x , R y and R z are updated based on a received channel...
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7461306 |
Output data compression scheme using tri-state
A memory device uses data compression to read data from an array of the memory during testing. The compressed data is either a logic one, logic zero or tri-state, depending upon the data read from...
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7434128 |
Systems and methods for identifying system links
In one embodiment, a method for identifying links in a system under evaluation includes assigning unique identifiers to drivers of the system, emitting the identifiers from the drivers on...
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7428694 |
Device for protection against error injection into a synchronous flip-flop of an elementary logic module
A logic circuit comprises a logic module comprising a functional synchronous flip-flop receiving a functional result comprising several bits in parallel, and supplying a synchronous result. A...
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7426684 |
Lost-cycle measurement using cycle counter
A method of lost-cycle measurement using a cycle counter. In some embodiments, the lost-cycle measurement method comprises: getting a current cycle counter value; finding a number of elapsed cycles...
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7395483 |
Method and apparatus for performing error-detection and error-correction
One embodiment of the present invention provides a system that facilitates detecting and correcting errors. The system operates by receiving a data packet comprised of p words on a communication...
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7310761 |
Apparatus and method for retransmitting data packets in mobile ad hoc network environment
A method and an apparatus for requesting packet redelivery in a mobile ad hoc network environment. The method includes receiving a first packet periodically broadcasted, extracting packet delivery...
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7296106 |
Centerplaneless computer system
A computer system which may allow a centerplaneless design. The computer system may include various client circuit boards including processor circuit boards, memory circuit boards and switch...
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7237148 |
Functional interrupt mitigation for fault tolerant computer
A new method for the detection and correction of environmentally induced functional interrupts (or “hangs”) induced in computers or microprocessors caused by external sources of single event...
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7185261 |
Multidimensional turbo product code decoding of encoded data transmitted over diversity channel
A system and method to transmit and receive forward error corrected data in a diversity communications system is provided. Using diversity techniques, multiple copies of the transmitted data are...
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7168019 |
Method and module for universal test of communication ports
The present invention relates to a method and an universal module for testing functions of communication ports of a computer, including both parallel port and serial port. The module includes a...
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7152192 |
System and method of testing a plurality of memory blocks of an integrated circuit in parallel
A method of testing a plurality of memory blocks of an integrated circuit in parallel, wherein each memory block comprising data bit storage cells in an array of rows and columns, and wherein each...
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7127669 |
Redundant path communication methods and systems
The systems and methods described herein provide a redundant communication path. The systems and methods can provide a second source for the same data under many circumstances. These circumstances...
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7117423 |
Methods and systems for multiple substream unequal error protection and error concealment
Methods and systems for streaming data in a network. Whether the network is experiencing high packet loss may be determined by a rate control module. If high packet loss is experienced, data is...
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7027333 |
High reliability triple redundant memory element with integrated testability and voting structures on each latch
In a preferred embodiment, the invention provides a circuit and method for a high reliability triple redundant latch with integrated testability. Three settable memory elements set an identical...
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6957382 |
Receiving circuit for receiving messages signals
The invention relates to a receiving circuit for receiving message signals, having a first sampler for converting the message signal into a first sampled signal by a first sampling method, having...
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6918057 |
Architecture, circuitry and method for controlling a subsystem through a JTAG access port
Architecture, circuitry, and methods are provided for programming, writing to, or reading from one or more integrated circuits which may be arranged upon a printed circuit board. Programming and...
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6910173 |
Word voter for redundant systems
The present invention provides a word voter for redundant systems with n modules wherein each of these n modules generates a word output. The word voter receives word outputs from each of the n...
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6880119 |
Method for supervising parallel processes
The present invention relates to a method of supervising parallel processors in a data system that comprises a first system CP-A and a second system CP-B. The method comprises the steps of:
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6850704 |
Low-overhead fault-tolerance techniques for optical and other cross-connect systems
Fault tolerance is provided in a cross-connect system having only duplicated switch fabrics, instead of the triplicated switch fabrics of the prior art. In addition to the two information switch...
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6829738 |
Configuration for testing an integrated semiconductor memory and method for testing the memory
A configuration for testing an integrated semiconductor memory having a control I/O terminal and data I/O terminals, is described, and in which case test signals are prescribed by a test unit. The...
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6772392 |
Image failure detection unit in redundant duplex transmission
There is provided an image failure detection unit in redundant duplex transmission in which a failure occurring on a regular link is detected at in real time, and the link is instantaneously...
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6711713 |
Method and apparatus for detection, transmission and processing of safety-related signals
The use of radio technology for transmission of EMERGENCY-OFF, START-, STOP- and process and confirmation signals from industrial processing machines, such as numerically controlled machine tools...
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6690733 |
Method for data transmission
In a method for data transmission in which the binary original data (D 0 , . . . , Dm) is transferred from a transmitter to a unit of a receiver ( 1 ), selected preferably by means of a binary base...
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6671835 |
Error detection in digital scanning device having parallel data streams
A method and apparatus for error checking in a digital scanning device. An error detection pattern is written into each of a plurality of parallel data streams. Each of the data streams is then...
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6611942 |
Transmitter, receiver, method and system for safe telecommunication of cells
The present invention concerns a method of protecting the transmission of cells in a telecommunication system, the method consisting, on the transmitter side, of simultaneously transmitting two...
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6484289 |
Parallel data test for a semiconductor memory
A semiconductor memory device having a parallel data test scheme is disclosed. The semiconductor memory includes an array that is partitioned into array portions with each array portion further...
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6473862 |
Security assembly particularly for electrosensitive protection equipment
An assembly comprising two micro-controllers (MC 1 , MC 2 ) separately receiving specific and synchronous information (input states) in order to process it and supply respective outputs (S 1 , S 2...
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6434720 |
Method of checking data integrity for a RAID 1 system
A method of checking data integrity in a computer system which includes the acts of: transmitting primary data from a primary device to a primary CRC circuit; transmitting secondary data from a...
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6374374 |
Error processing circuit for a receiving location of a data transmission system
An error processing circuit for a receiving location of a system for transferring binary data in the form of pulse sequences, wherein the system has a number of receiving locations connected via a...
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6330701 |
Method relating to processors, and processors adapted to function in accordance with the method
The present invention relates to a method of utilizing information made available in a bit error check of data words belonging to instructions read into a processor having a first (11) and a second...
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6304403 |
Multiple devices selected fault feature for data integrity in disc drive applications
A read/write preamplifier circuit is provided that includes a fault detecting circuit that detects when two or more read/write preamplifiers are concurrently selected for communicating with their...
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6185708 |
Maintenance free test system
A test system for testing a semiconductor device by having a number of test channels (tester pins) corresponding to the number of terminal pins of the semiconductor device to be tested includes: a...
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6182263 |
Apparatus for generating, recording and transmitting an error product code block having an improved check code arrangement
There is provided an apparatus for processing data for generating an error correction product code block devised so as to maintain the current level of redundancy after the error correcting ability...
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6131141 |
Method of and portable apparatus for determining and utilizing timing parameters for direct duplication of hard disk drives
A method of and an apparatus for duplicating direct access storage devices (DASDs) such as hard disk drives (HDDs). The apparatus includes a portable HDD duplicator which can be connected to an...
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6085350 |
Single event upset tolerant system and method
An single event upset (SEU) tolerant system for detecting and correcting an SEU includes a decision element (200) for receiving a plurality of outputs (120) from a plurality of signal generators...
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6085333 |
Method and apparatus for synchronization of code in redundant controllers in a swappable environment
Methods and associated apparatus for automatically synchronizing the operating code between a plurality of controllers. In a first embodiment after the spare controller is swapped into the storage...
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6085251 |
Implementing a parallel file transfer protocol
Apparatus and method to improve the speed of electronic file transfer between remote computers by parallel processing. The most common transfer protocol is the File Transfer Protocol (FTP) Though...
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6023780 |
Disc array apparatus checking and restructuring data read from attached disc drives
The present invention relates to a disc array apparatus assuring that even if contradiction is detected in matching of parity data during a read parity check, correct host data is Restructured and...
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5961657 |
Parallel test circuit for semiconductor memory device
There is disclosed a parallel test circuit for a semiconductor memory device having a memory army with a plurality of memory cells and a plurality of comparators used for high-speed memory cell...
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5948111 |
Real time comparison of integrated circuit operation
A pair of substantially identical integrated circuit elements, in the form of microprocessors, are operated in response to the same instruction and data signals that are accessed from a memory by...
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5881076 |
Comparator utilizing redundancy
A method and apparatus for comparing two N-bit digital numbers. The N bits from the two numbers are inputs to a comparator. In addition, a parity bit from each number is an input to the comparator....
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5805797 |
Controller having a fail safe function, automatic train controller and system using the same
An ATP device generates control data for two systems from an ATP command speed signal, provides duplicate logic units in the ATP device so as to process the respective control data, provides at...
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5794167 |
Microprocessor based reliability system applicable, in particular, to the field of rail transport
Microprocessor based safety system applicable, in particular, to the field of rail transport, for monitoring and controlling actuators (ACT) as a function of the data supplied by sensors (CP),...
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5787095 |
Multiprocessor computer backlane bus
A computer bus includes a first original signal line, a second redundant signal line, circuitry connected to the first original signal line and the second redundant signal line for driving the...
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