Class 714/817 - Noise level

Subclass of Class 714 - Error detection/correction and fault detection/recovery
Definition: Subject matter in which the forbidden condition is the presence
No. of patents: 29
Last issue date: 04/30/2013

Number	Title	Issue Date
8433990	Semiconductor test apparatus and test method In a semiconductor test apparatus, a voltage source generates a power supply voltage to be supplied to a DUT. A decision processor makes the DUT execute a predetermined test sequence. A noise generator superimposes a periodic pulse-like noise voltage on the power su...	04/30/2013
8418046	Data signal handling circuitry and methods with error analysis capabilities Data receiver circuitry in the device is provided with one or more error signal output leads. An error signal on such a lead includes an error indication as soon as possible after the associated low level circuitry detects a data error. The timing of such an error i...	04/09/2013
8365057	Processing of data integrity field A network communication device includes a host interface, which is coupled to communicate with a host processor, having a memory, so as to receive a work request to convey one or more data blocks over a network. The work request specifies a memory region of a given ...	01/29/2013
7770098	Signal processing apparatus and method therefor Processing a coded signal formed so that multiple signal points, having individual signal values consonant with coded values, are arranged in accordance with a predetermined order. A signal restoration unit calculates an average value for signal values at signal poi...	08/03/2010
7665012	Impulse noise mitigation In a signal transmission medium such as an ac power line, impulse noise in the line may be dealt with by detecting impulse noise in the transmission medium, determining whether the impulse noise is periodic or complex, and, at least approximately, correlating the ti...	02/16/2010
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
7330993	Slew rate control mechanism According to one embodiment a computer system is disclosed. The computer system includes a bus and a chipset coupled to the bus. The chipset detects the slew rate of a signal transmitted over the bus by the chipset. In addition the chipset adjusts the slew rate base...	02/12/2008
7231559	Outage predictor for communication link A device for estimating a likelihood of a wireless link outage includes a memory, a variability calculator, and an outage predictor. The memory maintains a history of signal quality for a signal received from a transmitter. The variability calculator is coupled to t...	06/12/2007
7139952	Semiconductor integrated circuit detecting glitch noise and test method of the same A semiconductor integrated circuit having a plurality of wirings and a scan chain including a testing circuit configured to detect glitch noise caused by crosstalk between the wirings and a plurality of scan flip-flops connected in series, the semiconductor integrat...	11/21/2006
6906881	Apparatus and method to erase a magnetic tape A method to erase a magnetic tape, where the magnetic tape is first mounted in a magnetic tape in a tape drive, where that magnetic tape includes a physical beginning of tape (“PBOT”), a physical end of tape (“PEOT”), and information written thereon between ...	06/14/2005
6721903	Apparatus and method for processing information continuously even against extraneously incoming noise An inventive information processor performs a predetermined process substantially continuously without causing runaway in its CPU even if extraneous noise has entered the power supply terminal thereof. When the incoming noise reaches relatively low Level 1(L), impor...	04/13/2004
6721445	Method for detecting anomalies in a signal A method for detecting anomalies in a digitized complex signal analyzed by a detection unit, including a machine learning and a diagnosis of the intensity and/or the rarity of an anomaly, the learning including the steps of: 1.1 selecting sequences of ...	04/13/2004
6543027	On-chip detection of clock gitches by examination of consecutive data An application specific integrated circuit includes a clock recovery circuit which recovers from an input signal a repetitive sequence of data values wherein no two consecutive values are the same and a recovered clock. An address generator responds to th...	04/01/2003
6173427	Immunity evaluation method and apparatus for electronic circuit device and LSI tester An apparatus and a method for checking that an electronic circuit device or an electronic circuit component such as an LSI operates normally or abnormally by applying an input pattern to the electronic circuit device or the electronic circuit component to...	01/09/2001
5898699	Digital broadcast receiver and signal level display method In displaying an antenna level on a display device, a bit error rate is measured by comparing, by a comparator, output signals of a QPSK demodulator and signals obtained by error-correcting those output signals by an error correction circuit and then agai...	04/27/1999
5636226	Fault sensing circuit and method A fault sensing circuit for detecting the state of at least one latch controlled by at least one control signal is provided. The circuit comprises an additional latch also controlled by the same control signal and receiving an input of a known value. The ...	06/03/1997
5481555	System and method for error detection and reducing simultaneous switching noise A system and method that reduces the simultaneous switching noise of outputs and the processing delays caused by inductance by using an encoding scheme that results in a net signaling current of substantially zero at each cycle time for the fast parallel ...	01/02/1996
5442642	Test signal generator on substrate to test A test system is added to a substrate and a test mode of operation is added to the timing and control functions of a system on the substrate. When a multifunctional system on the substrate is tested, a first functional subsystem is connected to an externa...	08/15/1995
5351186	System and method for obtaining information concerning a product or a service A system and method for obtaining information concerning a product or service to a user which includes a remotely located source of computer-based information for generating and transmitting encoded data, including encoded audio data, pertaining to a plur...	09/27/1994
4908530	Non-linear squelch circuit for IEEE-802. 3 protocol Method and apparatus for non-linearly filtering impulse and low frequency noise received over a network so as to avoid false activation of equipment is disclosed. A squelch circuit assures that only multiple transitions of at least three half-cycles in th...	03/13/1990
4845466	System for high speed digital transmission in repetitive noise environment A transceiver system for high speed, low bit-error rate data communications over a.c. power lines in the presence of repetitive impulse noise includes an a.c. power line coupling network, a power line communications modem, and a microprocessor with a memo...	07/04/1989
4772445	System for determining DC drift and noise level using parity-space validation A system which measures direct current drift and noise in sensor signals from redundant sensors utilizing a parity-space algorithm. Parity vector signals produced by the parity-space algorithm are averaged to provide a direct current (DC) drift signal. An...	09/20/1988
4764893	Noise-immune interrupt level sharing An interrupt interface circuit for connection to a shared interrupt request line. An internally generated interrupt impresses an interrupt request line and also locks out any further interrupt requests until the interrupt request is analyzed to be of a mi...	08/16/1988
4631683	Acoustic detection of contact between cutting tool and workpiece A system and method for monitoring vibrations of a machine tool metal-cutting tool insert and interpreting them to promptly detect the initial touch to the workpiece and signal the tool to stop advancing before marring the surface. The signal generated by...	12/23/1986
4481628	Apparatus for testing dynamic noise immunity of digital integrated circuits Apparatus for testing dynamic noise immunity of digital integrated circuits wherein noise pulses of predetermined duration and amplitude are applied to the inputs of an integrated circuit under test. The tested circuit outputs which normally are at logic ...	11/06/1984
4387461	Experientially determined signal quality measurement device for antipodal data In a data link conveying antipodal (two level) data bits, a signal quality measuring circuit using prestored experiential data acquired during a calibration phase. Any signal quality parameter, such as BER and Eb /No, can be measured...	06/07/1983
4334310	Noise suppressing bilevel data signal driver circuit arrangement The generation of internal circuit noise due to the switching of differing numbers of bilevel data lines is suppressed by maintaining the energizing current substantially constant with widely varying amounts of current drawn by varying the current drawn b...	06/08/1982
4247938	Method for generating a pseudo-signal in an error rate supervisory unit and circuit for carrying out the same A method and circuit for generating a pseudo-error signal comprising a demodulator circuit for demodulating an input signal; a first discriminator circuit for regenerating a first digital data signal by discriminating the output of the demodulator circuit...	01/27/1981
4032884	Adaptive trunk data transmission system An adaptive trunk data transmission system in which data bits to be communicated are not transmitted during certain fade durations of a multi-channel propagation characteristic, but are delayed instead, until the fade interval is over, when they are then ...	06/28/1977

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Class 714/817 - Noise level