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| Number | Title | Issue Date |
| 8166354 | Apparatus, and associated method, for estimating a bit error rate of data communicated in a communication system Apparatus, and an associated method, for estimating a bit error rate of data communicated to a receiving station of a digital communications system, such as a GSM/EDGE cellular communication system. Soft decision values, indicative of confidence levels that decided ... | 04/24/2012 |
| 7516374 | Testing circuit and related method of injecting a time jitter A testing method includes selecting a low-pass filter by simulation, generating testing signals with the low-pass filter receiving output signals of an under-test circuit, and outputting the testing signals to an input of the under-test circuit for predetermined mea... | 04/07/2009 |
| 7434111 | Non-volatile memory system having a pseudo pass function A non-volatile memory system comprises a non-volatile memory and a memory controller controlling the non-volatile memory. The non-volatile memory has a pseudo pass function of returning a pass as a status even if a bit error reaching allowable number of bits occurs ... | 10/07/2008 |
| 7426666 | Noisy channel emulator for high speed data Bit error patterns for high speed data systems are generated by randomly distributing a first error pattern of G bits, output from a group of substantially uncorrelated bit error generators, into a second error pattern of N bits, where G and N are integers and G is ... | 09/16/2008 |
| 7424651 | Method and apparatus for decision threshold control in an optical signal receiver An apparatus and method for decision threshold control in an optical signal receiver. A forward error correction (FEC) decoder provides a feedback signal representative of corrected errors. The decision threshold is adjusted to balance a number of corrected ones and... | 09/09/2008 |
| 7395462 | Defect estimation apparatus and related method A weighted defect estimating apparatus and a related method for determining a defect estimation value are disclosed. The weighted defect detecting apparatus includes: a defect detecting unit for generating a defect value when a defect in a predetermined region of an... | 07/01/2008 |
| 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 |
| 7370247 | Dynamic offset compensation based on false transitions A method and apparatus provide a receiver with an architecture to regulate a bit error rate of the receiver using an offset based on detecting false transitions in received data. In an embodiment, such false transitions in data may be determined in a bang-bang detec... | 05/06/2008 |
| 7366963 | Data recording/reproduction device, data recording/reproduction method, and digital camera The present invention is directed to a data recording method of notifying degree of deterioration of recording medium thus to perform stable recording operation. Even in the case where uncorrectable address read error does not exist, deterioration information is dis... | 04/29/2008 |
| 7336749 | Statistical margin test methods and circuits Margin-testing circuits and methods rely upon the statistics of sampled data to explore the margin characteristics of received data. One margining circuit samples an incoming data stream N times at each of many sample points, each sample point representing a unique ... | 02/26/2008 |
| 7324903 | Method and apparatus for measuring signal quality using eye pattern A signal quality measuring method and apparatus in which a quality of a signal detected from an RF signal read out from a disk or a communications channel is measured by using eye pattern signals of the detected RF signals. Eye pattern signals representing time chan... | 01/29/2008 |
| 7310480 | Adaptive framework for closed-loop protocols over photonic burst switched networks An optical network, which includes edge and switching nodes, optically communicate information formatted into statistically multiplexed control and data bursts and/or metadata. Control bursts are transmitted prior to the data bursts to configure optical switches in ... | 12/18/2007 |
| 7283578 | System and method to adjust searcher threshold parameter of rake receiver This present invention is a system and method to adjust a searcher threshold parameter of a RAKE receiver. The adjusting system includes a searcher, a power estimator, and a parameter control apparatus. When the searcher finds and acquires a new path signal, the pow... | 10/16/2007 |
| 7277633 | Receiving error rate control device A reception error rate controller in which the settling time can be shortened at the time of feedback control by controlling the quality of a received signal when the error rate is low. The reception error rate controller identifies the received signal by comparing ... | 10/02/2007 |
| 7254345 | Receiver and receiving method capable of detecting an eye aperture size formed by reception data signals In a receiver operable in response to a data signal, an eye aperture size is detected along a time axis by an eye aperture detection circuit and is controlled by a control circuit so that it becomes a maximum. The eye aperture detection circuit determines different ... | 08/07/2007 |
| 7206977 | Intelligent self-configurable adapter An intelligent self-configurable adapter is provided. Before transferring data, the adapter configures itself. After configuring itself, the adapter then starts transmitting the data. During data transmission, the adapter monitors the connection to ensure that the t... | 04/17/2007 |
| 7161513 | Apparatus and method for improving resolution of a current mode driver A method for improving resolution of a current mode driver. The current mode driver is operable to provide an output that falls within a predetermined range. An embodiment of the method includes sensing a condition, such as a process condition, a voltage condition a... | 01/09/2007 |
| 7154944 | Mask compliance testing using bit error ratio measurements Mask compliance of a digital signal from a reference device is determined. Bit error rates for first sampling points for a low mask region are detected. The bit error rates for the first sampling points are averaged to produce an average low mask region error rate. ... | 12/26/2006 |
| 7145933 | Method and apparatus for generating random signals A random binary signal is generated using a plurality of noise sources, each of which defines events occurring at random intervals, the outputs of the sources being combined in such a way that the events are interspersed in the resultant signal. ... | 12/05/2006 |
| 7136442 | Receiving circuit receiving message signals The subject matter hereof relates to a receiving circuit for receiving a message signal. In an example embodiment, the receiving circuit has a sampler for converting a message signal into a sampled signal, a signal-quality determining unit for determining the qualit... | 11/14/2006 |
| 7126408 | Method and apparatus for receiving high-speed signals with low latency An apparatus and method for receiving high-speed signals having a wide common-mode range with low input-to-output latency. In one embodiment, the receiver includes an integrator to accumulate charge in accordance with an input signal during an integration time inter... | 10/24/2006 |
| 7127663 | Bad frame indicator for radio-telephone receivers in GSM mobile systems A system and method for bad frame indication of a speech frame includes estimating a signal-to-noise ratio (SNR) and checking a cyclic redundancy code (CRC) value of the speech frame. When the speech frame fails CRC error detection or the SNR is below a pre-specifie... | 10/24/2006 |
| 7092435 | Line quality monitoring apparatus and method In a line quality monitoring method of detecting a code error rate by identifying a received optical signal using different identification levels and executing bit comparison after identification, an amplitude of the signal and noise power contained in the signal ar... | 08/15/2006 |
| 7080294 | Threshold crossing alarm system A method for activating an alarm based on a series of error counts generated by a monitoring device, including an integrator, an accumulator, and an alarm. The integrator adjusts the error count and produces an adjusted count, which it then sends to the accumulator.... | 07/18/2006 |
| 7064914 | Position error signal quality In a method for generating a confidence level of a position error signal (PES) component that is indicative of a quality of the PES component, a PES component is generated using position signal samples of a read back signal corresponding to a servo burst pattern. Ne... | 06/20/2006 |
| 7062165 | Receiver monitoring and optimization using forward error correction information A data regenerator for regenerating a data signal, including a convertor for converting a received data signal into a binary data signal in dependence on conversion parameters, an error corrector for correcting errors in the binary data signal based on error correct... | 06/13/2006 |
| 6998879 | Level determination circuit determining logic level of input signal An input circuit in a DRAM includes a differential amplifier circuit amplifying a potential difference between a potential of an input signal and a reference potential, an inverter outputting an inversion signal of an output signal of the differential amplifier circ... | 02/14/2006 |
| 6980737 | Method and apparatus for rapidly measuring optical transmission characteristics in photonic networks An apparatus for determining an error ratio of individual channels of a WDM optical signal comprises a wavelength-selective filter for separating the individual channels of the WDM signal and a measurement circuit for measuring an error ratio of one channel using a ... | 12/27/2005 |
| 6970436 | Apparatus for monitoring asynchronous transfer mode cells in communication systems An apparatus for monitoring asynchronous transfer mode cells in the communication system is proper for recognizing state information of asynchronous transfer mode cells transceiving between a base transceiver station and a base station controller. Accordingly, the a... | 11/29/2005 |
| 6965636 | System and method for block error correction in packet-based digital communications A system and method for efficiently correcting block errors in packet-based digital communications are provided whereby the ratio of redundant symbols/message symbols over the length of a data packet decreases in order to more efficiently use available bandwidth. Th... | 11/15/2005 |
| 6961754 | Interactive access, manipulation, sharing and exchange of multimedia data In a multimedia environment, end-users are provided with the ability to effectively access, manipulate and share one or more multimedia objects, or select portions thereof, independent of the terminal and/or network capabilities that are associated with the terminal... | 11/01/2005 |
| 6944804 | System and method for measuring pseudo pixel error rate A system and method for measuring and utilizing a pseudo pixel error rate in digital data transmission is disclosed. As an alternative to measuring actual pixel error rate measurement, the present invention uses a pseudo pixel error rate detection scheme where the e... | 09/13/2005 |
| 6879628 | Apparatus and method for measuring the bit error ratio of a transmission system An apparatus and method for measuring the bit error ratio of a transmission system is provided, which can accurately report the degradation of the service quality of a line to an operator by accurate BER calculation under an exceptional situation where an excessive ... | 04/12/2005 |
| 6691262 | Method and apparatus for quality evaluation of cable circuit A cable line quality evaluating method for evaluating a quality of a cable line for transmitting a digital modulation signal in a bidirectional manner comprises the steps of extracting a noise signal of an upstream line from one of a cable line connection... | 02/10/2004 |
| 6609220 | Method of manufacturing Q-value and device therefor A method of measuring a Q-value according to a mean value and standard deviation of a signal level distribution of input data comprises: a first step for calculating a difference between bit error rates of input data sampled by a plurality of threshold va... | 08/19/2003 |
| 6516419 | Network synchronization method and non-break clock switching method in extended bus connection system A method of simple network synchronization in a bus extension system with expanded capabilities wherein a plurality of independently-operable multimedia multiplexing devices are connected to the same network in parallel. The method of network synchronizat... | 02/04/2003 |
| 6397358 | Method of identifying a frame for erasure in a digital data transmission system A method of improving frame erasure performance for slow frequency hopping channels utilizing two convolutional decoding steps and two PBER thresholds in conjunction with the cyclic redundancy check. The breakdown condition in the convolutional decoding p... | 05/28/2002 |
| 6275959 | Adaptive threshold control circuit and method within high speed receivers Disclosed is a data regeneration circuit including a decision gate for regenerating a symbol stream (e.g., bit stream) by comparing the amplitude of individual symbols thereof to a decision threshold and outputting a logic level in accordance with each co... | 08/14/2001 |
| 6222877 | Method for performance monitoring of data transparent communication links A method for performance monitoring of data transparent communication links, including a method wherein each symbol in an incoming data symbol stream is sampled at the center of each bit period to create a main line data bit stream, and concurrently sampl... | 04/24/2001 |
| 5896392 | Device and method for automatically controlling decision points An automatic decision-point control type decision circuit has a main decision unit, a sub-decision unit, an exclusive-OR circuit, and a controller. The main decision unit receives a data signal and one of two branched signals while the sub-decision unit r... | 04/20/1999 |
