Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7653843 | Method and arrangement to estimate transmission channel characteristics A channel characteristic of a transmission channel between a remote terminal and a central office is estimated by collecting information in the remote terminal, transferring this information from the remote terminal to the central office and matching the received in... | 01/26/2010 |
| 7631230 | Method and apparatus for testing a transmission path One embodiment of the invention provides apparatus and a method for testing a transmission path across one or more printed circuit boards. According to the method, a test signal is presented at a first location on the transmission path. The test signal is generally ... | 12/08/2009 |
| 7624314 | Echo canceler-based mechanism for performing and reporting fault diagnostic testing of repeatered telecommunication line A repeater-installed fault location mechanism conducts parametric measurements on a segment of wireline to which the repeater is connected, and adjusts taps of an echo cancellation operator in the repeater transceiver equipment, in accordance with the response of th... | 11/24/2009 |
| 7610521 | Communication control system and method for supervising a failure A communication control system has a plurality of control units that are connected via a communication bus to provide bidirectional communication. A control unit detects a failure when it occurs. Upon failure detection, the control unit generates a failure detection... | 10/27/2009 |
| 7610522 | Compliance of master-slave modes for low-level debug of serial links A condition is detected to cause a component having physical layer circuitry with a transmitter and a receiver to enter a testing state. The transmitter transmits a pre-selected data pattern while comparing data received by the receiver to the pre-selected data patt... | 10/27/2009 |
| 7607054 | Method of improving the interface efficiency in a communications network In a method for improving the interface efficiency between two network nodes (2, 3, 4) in a communications network (1) the data blocks to be transmitted over the interface are checked for corruption or likely corruption prior to transmission and only u... | 10/20/2009 |
| 7603594 | Wireless communications system The present invention is a wireless communications system for simultaneously establishing a basic access network and a wireless access network using at least two kinds of wireless communication networks. In the basic access network, there are executed signaling comm... | 10/13/2009 |
| 7581147 | Radio resource control-service data unit reception A method for receiving a segmented communication begins by periodically transmitting the segmented communication. The segmented communication is received and each segment of the segmented communication is examined to determine if the segment is valid. If the segment... | 08/25/2009 |
| 7577883 | Data transmission speed test system and method A data transmission speed test system is provided. The system includes a computer. The computer is configured for reading data stored in a database and transmitting the data to a target device. The computer is further configured for testing data transmission speeds ... | 08/18/2009 |
| 7562267 | Methods and apparatus for testing a memory In a first aspect, a first method is provided that includes the steps of (1) transmitting a first signal representative of a test operation from a test circuit to a memory via a first signal path; (2) transmitting a second signal, synchronized with the first signal,... | 07/14/2009 |
| 7549096 | Methods and systems for tracking and playing back errors in a communications network In accordance with the invention, a Logging Administration Maintenance and Billing Entity (LAMB) is interfaced to a network transport bus for logging network traffic, for error tracking, error replay, and billing functions. In the exemplary embodiment, the LAMB reco... | 06/16/2009 |
| 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 communication lines, and detects a failure in the communication lines; and a pac... | 06/09/2009 |
| 7523365 | Dynamic determination of signal quality in a digital system A receiving processor is configured with a normal (operational) path and a test path. The test path is configured in parallel with the normal path. The test path simulates and receives as input the same data as the normal path, but the test path has a separate volta... | 04/21/2009 |
| 7487412 | Test buffer design and interface mechanism for differential receiver AC/DC boundary scan test A boundary scan test system including a transmitter and a receiver. The system performs DC and AC boundary scan testing of the interconnections between devices. The system addresses fault masking that can occur during testing. Of concern are AC coupled interconnecti... | 02/03/2009 |
| 7467338 | Apparatus and method for generating an error signal The invention relates to an apparatus for generating an error signal from an input signal, the error signal to be used for generating a transmit signal, the apparatus comprising: distorter for distorting the input signal to obtain a distorted signal, calculator for ... | 12/16/2008 |
| 7464307 | High performance serial bus testing methodology According to one embodiment, a built-in self test (IBIST) architecture/methodology is disclosed. The IBIST provides for testing the functionality of an interconnect (such as a bus) between a transmitter and a receiver component. The IBIST architecture includes a pat... | 12/09/2008 |
| 7457995 | Method and apparatus for generating reference transmission signal for use in testing communications receivers A method and apparatus for generating a reference transmission signal for use in testing a communications system. A data packet transmission signal containing a plurality of reference data is captured and digitized, following which reference data is retrieved. The r... | 11/25/2008 |
| 7451365 | System and method for identifying nodes in a wireless network Systems and methods for providing a boundary scan test of a wired or wireless network having a plurality of network nodes are presented. The system includes a test station communicatively coupled with the network. The test station creates a MAC layer scan test route... | 11/11/2008 |
| 7444558 | Programmable measurement mode for a serial point to point link A serial point to point link that communicatively couples an integrated circuit (IC) device to another IC device is initialized by transferring a training sequence of symbols over the link. Registers of the IC device are programmed, to set a symbol data pattern and ... | 10/28/2008 |
| 7437128 | Portable interference-generating device for use in CDMA mobile testing A portable interference-generating device for inducing desired frame error characteristics, such as desired frame error patterns and rates, at a mobile unit receiving a carrier signal having at least one data channel having a plurality of data frames. The induced fr... | 10/14/2008 |
| 7437643 | Automated BIST execution scheme for a link Training of a link is performed, wherein the link is an interconnect between two devices of a computer system. A built-in self-test (BIST) of the link is performed. A result from the link training is compared to a result from the BIST. A link status of the link is p... | 10/14/2008 |
| 7434114 | Method of compensating for a byte skew of PCI express and PCI express physical layer receiver for the same A method of compensating for a byte skew of a PCI Express bus, the method including determining whether received data are in a training sequence or not, setting an alignment point corresponding to each of the lanes based on a comma symbol included in the training se... | 10/07/2008 |
| 7433069 | Image transmission method and its apparatus An image transmission apparatus and method for use with at least two transmission paths having different transmission rates from one another. The image transmission apparatus comprises an image input for receiving an image signal, a coding processing unit for encodi... | 10/07/2008 |
| 7429925 | Label printer having an RFID communication function An electronic apparatus having a RF tag communication function is provided which includes a RF tag reader/writer and a main controller for controlling the RF tag reader/writer. The RF tag reader/writer includes a radio communication section for executing radio commu... | 09/30/2008 |
| 7424652 | Method and apparatus for detection of transmission unit loss and/or replication One embodiment of the disclosures made herein is a method of detecting a transmission unit fault condition in a network system. In accordance with such a method, an operation is performed for designating transmission units received at a first counting location of a ... | 09/09/2008 |
| 7418646 | Integrated circuit using wireless communication to store and/or retrieve data and/or check data In one embodiment, a method is provided that may include generating, at least in part by first circuitry comprised in an integrated circuit, check data based at least in part upon other data, and/or determining at least in part by the first circuitry, one or more lo... | 08/26/2008 |
| 7404115 | Self-synchronising bit error analyser and circuit A self-synchronising data bus analyser comprising a generator LFSR, a receiver LFSR and a comparator wherein the generator LFSR generates a first data set which is transmitted through a data bus to the comparator; and wherein the comparator... | 07/22/2008 |
| 7398437 | Method and system for multi-user channel allocation for a multi-channel analyzer Multiple channels of a multi-channel analyzer are allocated among multiple users such that each user can initiate and retrieve the results of separate diagnostic sessions or strategies. Each analyzer channel includes an input connection port, a trace buffer memory a... | 07/08/2008 |
| 7386767 | Programmable bit error rate monitor for serial interface A programmable bit error rate monitor includes an error counter, a monitoring period counter with a programmable upper bound to set the monitoring period, and an error flag generator that compares the actual error count to a programmable threshold. The error flag ge... | 06/10/2008 |
| 7373563 | Root cause correlation in connectionless networks A method for correlating routing errors to link failures in a network, the method including detecting a link failure between a first and a second router NODES in a network, associating a first node address indicated in a first routing table of the first router with ... | 05/13/2008 |
| 7373550 | Generation of a computer program to test for correct operation of a data processing apparatus Software built in self test computer programs 12 are generated using a genetic algorithm 14 technique. A fault simulator 20 is used to simulate candidate software built in self test computer programs and compare the simulated execution, such to ... | 05/13/2008 |
| 7370094 | Method and device for adjusting the maximum size of the information sequences transmitted in a telecommunication network In order to adjust the maximum size of the information sequences transmitted by a plurality of terminals in a network, according to a predetermined network protocol, between two subnetworks supporting different maximum sizes of information sequence: there is stored ... | 05/06/2008 |
| 7370106 | Network revision system with local system ports A revision system for a network having a plurality of data ports, pairs of the data ports being connectable by a patch cord to place the pairs of data ports into communication with each other, the revision system including a computer processor, a scanner in communic... | 05/06/2008 |
| 7363563 | Systems and methods for a built in test circuit for asynchronous testing of high-speed transceivers Methods and apparatus provide a transceiver, such as a serializer/deserializer device (SerDes), with enhanced built-in self test (BIST). A built-in self test circuit is provided that decouples a clock signal used for receiving data from a clock signal used in transm... | 04/22/2008 |
| 7363529 | Automated DSL network testing software tool A DSL network testing tool [110] tests multiple elements 9141, 143] in a DSL circuit. The testing tool may operate in either a single circuit test mode or a batch mode. In batch test mode, the network testing tool receives multiple DSL phone numbers an... | 04/22/2008 |
| 7360127 | Method and apparatus for evaluating and optimizing a signaling system A method and apparatus for evaluating and optimizing a signaling system is described. A pattern of test information is generated in a transmit circuit of the system and is transmitted to a receive circuit. A similar pattern of information is generated in the receive... | 04/15/2008 |
| 7355982 | Subscriber line terminal device and loopback test method The present invention provides a subscriber line terminal device, which enables identification of the cause of abnormality when abnormality is detected in remote monitoring of a subscriber line terminating device connected to the terminal device via an optical fiber... | 04/08/2008 |
| 7356443 | Systems and methods for analyzing the selection of measurements of a communication network Representative embodiments are directed to systems and methods for analyzing the selection of measurements of events associated with a communications network. In one embodiment, the selection of measurements includes creating a representation of a network. After the... | 04/08/2008 |
| 7353448 | Methods, architectures, circuits and systems for transmission error determination Methods, circuits, architectures, software and systems for error detection in transmitted data. The method generally includes receiving data and non-data, the data including fixed length data portions, removing non-data; and if the data includes a remainder, adding ... | 04/01/2008 |
| 7353443 | Providing high availability in a PCI-Express link in the presence of lane faults A method, device, and system are disclosed. In one embodiment, the method comprises discovering a failure on a PCI Express interconnect, determining whether a failure override bit has been set to override the standard PCI Express Polling.Compliance state for the fai... | 04/01/2008 |