Famous Patents
The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8184608 | System and method for using CDMA PN offset to maintain instrument timing reference A system and method is provided enabling identification of different PN offsets values for CDMA signals without access to a GPS signal, such as when making measurements within indoor environments. When a timing reference, such as that provided by a GPS signal, is lo... | 05/22/2012 |
| 8130660 | System and method of remote testing in loopback mode using MGCP/NCS This invention relates to a system and method of monitoring, by establishing end to end loopback testing across one or more networks with dissimilar transport technologies. The system allows for connection in loopback mode from a standard interface on a test device ... | 03/06/2012 |
| 8098586 | Determining configuration parameters of a mobile network A method of determining configuration parameters of a mobile network topology for testing and monitoring purposes at an interface (lub) located between a first node and a second node of the mobile network where between the first and the second node there exist sever... | 01/17/2012 |
| 8050187 | System and method for real-time AAL2 channel detection in UTRAN A system and method for detecting channels in a network using messages passing through the network is provided. An embodiment comprises detecting AAL2 channels communicating between a Node B and an radio network controller and also between two radio network controll... | 11/01/2011 |
| 8036485 | Systems and methods for measuring loss of detail in a video codec block Picture quality measurement systems and methods are provided for measuring DC blockiness within video blocks. Block boundaries are located within a test video frame. The relative AC differences within each block are measured using a reference video frame, a statisti... | 10/11/2011 |
| 8004969 | Cell level congestion policy management A system and method for transmitting data packets to a wireless client is shown. The data packets are received by a wireless content switch in the wireless network. The wireless content switch determines a quality of service value for the wireless client. The wirele... | 08/23/2011 |
| 7995149 | Subjectively weighted noise measurement Subjectively weighting noise measurements for multiple video formats based upon a defined standard for a standard definition video format uses a ratio between the active line time for the standard definition video format and the active line time for another video fo... | 08/09/2011 |
| 7978933 | Systems and methods for robust video temporal registration A robust video temporal method for registration between test and reference video sequences without a priori knowledge of the respective signal parameters initially produces frame and subimage distillation measurements from the test and reference video sequences. The... | 07/12/2011 |
| 7920990 | Apparatus and methods of defining spectral regions of interest for signal analysis Apparatus and methods are provided to allow multiple, possibly overlapping, regions of interest within a frequency spectrum to be defined, and managed. Each of these regions of interest may be selected for further testing or identification. Unselected regions are al... | 04/05/2011 |
| 7920758 | Measurement apparatus and method of measurement of video spatial scale, offset and cropping A method and apparatus are provided to measure spatial distortion. Measure and remove borders; and rescale the active test image, the active reference image, or both, such that they are the same size. A representative line is obtained, or selected, from each image p... | 04/05/2011 |
| 7907586 | Determining a transmission parameter in a transmission system A method for determining a transmission parameter at an interface between nodes of a transmission system for a specific channel, where there exist a plurality of channels between the nodes serving either for communication between the nodes or for communication with ... | 03/15/2011 |
| 7889211 | Measuring PSNR of full color video A method of measuring peak signal to noise ratio (PSNR) of full color video, both total and component contributions as well as providing PSNR full color and component maps includes converting the components of the full color video for both reference and impaired vid... | 02/15/2011 |
| 7852839 | Method and device for the provision, in an order according to ATM channels, of ATM cells at an interface arranged between a first and a second node of a transmission system Embodiments of the present invention relate to a method for providing ATM cells at an interface arranged between a first and a second node of a transmission system, in an order according to ATM channels. Embodiments of the method comprise determining address informa... | 12/14/2010 |
| 7835403 | Stream analysis apparatus and stream analysis display method An analysis display has a coordinate plane of which coordinate axes are elapsed time and PCR (Program Clock Reference) time calculated using PCR extracted from header information of a transport stream packet. A box indicator representing an access unit is provided o... | 11/16/2010 |
| 7817765 | Digital transmission apparatus and methods PCR jitter is improved when writing an input stream TS having a packet with a PCR in a memory 10 and reading it at a high speed. An oscillator 44 oscillates a local clock signal having a frequency of a reference clock for the input TS and a counter ... | 10/19/2010 |
| 7816904 | Modulation signature trigger A trigger generator and trigger method are provided for determining whether or not a signal under test matches a modulation signature. The modulation signature may be provided as a magnitude signature, a phase signature or both. When the magnitude values, phase valu... | 10/19/2010 |
| 7793171 | Protocol tester and method for performing a protocol test Embodiments of the present invention provide a protocol tester for performing a protocol test, said protocol tester exhibiting an input for the feeding in of data, a protocol decoding device for the decoding of data, and an output for providing the decoded data, the... | 09/07/2010 |
| 7773112 | Automatic measurement of video parameters A system and method for automatic measurement of video parameters for a video sequence using a video processor that has a software waveform monitor implemented as an integral part of a video processing application run by the video processor. Each frame of the proces... | 08/10/2010 |
| 7764305 | Method and apparatus for generating a reference television signal CW lock is conducted with less manual operation. A first input 22 receives a black burst (BB) signal from a key TV station. A second input 30 receives a continuous wave (CW) signal having an accurate, known frequency. A phase adjust signal generator | 07/27/2010 |
| 7759925 | Signal analyzer and method for signal analysis A signal analyzer repetitively memorizes waveform data of a signal under test to detect peaks P1-P6 of the waveform data. Waveform widths of the waveform data at a mask reference level, or a predetermined level down from the respective peaks, are evalu... | 07/20/2010 |
| 7734464 | RF autocorrelation signal trigger generator An autocorrelation trigger comprising a correlator detector for producing a correlation coefficient by correlating a signal with a time-delayed version of the signal and generating a trigger in real-time when the correlation coefficient corresponds to a predetermine... | 06/08/2010 |
| 7692507 | Apparatus and method of generating a plurality of synchronized radio frequency signals A plurality of RF signals are generated with the RF signals synchronized with each other with high accuracy. Transmission data of the multiple channels are modulated, the modulated data of the channels are added to produce composite data and the composite data is st... | 04/06/2010 |
| 7684338 | Circuit arrangement for testing a communication system The present invention relates to a circuit arrangement with which a communication that is subdivided into functional layers is processable by a first layer for a higher layer and/or by a higher layer for the first layer, the first layer being formed by a physical la... | 03/23/2010 |
| 7671856 | Measuring timing parameters of RGBHV analog video A unique test pattern is used for measuring timing parameters of RGBHV analog video signals. For horizontal timing a horizontal line includes within an active video region left and right portions at a first level and a central portion at a second level, the left, ri... | 03/02/2010 |
| 7649930 | Filter equalization using magnitude measurement data A filter equalization technique for an analog signal path, such as in an instrument that simultaneously measures a signal over a band of frequencies, uses magnitude measurement data for high frequency bands for which phase-calibrated sources are not readily availabl... | 01/19/2010 |
| 7646723 | Protocol test device having at least two channels A protocol test device has at least two channels which each have a transmit and a receive side, the protocol test device being designed to switch a signal transmitted from a first channel to the receive side of a second channel. A method for determining, by approxim... | 01/12/2010 |
| 7642822 | Analog phase-locked loop Aspects of the present invention are related, in general, to Type-III phase-locked loops. In particular, aspects of the present invention relate to analog Type-III phase-locked loop arrangements comprising at least two signal paths, wherein each signal path may corr... | 01/05/2010 |
| 7590427 | Method and apparatus for allocating at least one parameter to at least one transmission channel The present invention relates to a method for allocating at least one parameter to at least one transmission channel at an interface disposed between a first node and a second node of a transmission system, wherein the interface is connected to at least one link dis... | 09/15/2009 |
| 7583610 | Determination of speech latency across a telecommunication network element Determination of speech latency across a communication network element having an input interface and an output interface includes allocating a timestamp to the data packets of a sample of data packets representing a speech signal at the two interfaces, recording the... | 09/01/2009 |
| 7580527 | Communication monitoring in a mobile radio network A system and method for communication monitoring in a mobile radio network uses a distributed system having one or more processing devices coupled to different links of a serving switching entity of the mobile radio network. The processing devices extract current de... | 08/25/2009 |
| 7554338 | Display for measuring phase noise characteristics Time variation of phase noise characteristics is displayed for measurement. A peak power of a signal under test is detected to define the frequency as a reference frequency. An offset frequency from the reference frequency is repetitively changed and each time the p... | 06/30/2009 |
| 7539609 | Creation of a protocol stack An apparatus for creating a protocol stack has at least one protocol layer with at least one standardized interface and an instance for the administration of the protocol stack. The protocol stack is created by making available the protocol layer(s), randomly compil... | 05/26/2009 |
| 7519491 | Data processing method for spectrum analyzer A data processing method is provided to enable a calculation based signal analyzer, such as an FFT based spectrum analyzer, to produce results corresponding to a swept spectrum analyzer employing a video bandwidth (VBW) filter. Once a spectrum is produced the freque... | 04/14/2009 |
| 7496814 | Load testing of a telecommunication network A load testing apparatus and method has a display unit for the presentation of data that relate to a load test of a telecommunication network. The display includes a graphical user interface with the load test being divided into several test phases and on the graphi... | 02/24/2009 |
| 7466718 | Decoding device for analyzing communication protocols A decoding device for analyzing communication protocols has a generic decoder into which at least one protocol description of a communication protocol is loaded, the at least one protocol description being capable of being interpreted by the generic decoder. The dec... | 12/16/2008 |
| 7463180 | Analog to digital conversion apparatus An up-converter 124 frequency-up-converts an analog signal Sm. A down-converter 121 frequency-down-converts analog signal Sm. A signal selection block 125 selects one of the frequency-up-converted signal Sfu and frequency-down-converted signal S... | 12/09/2008 |
| 7406493 | Up-sampling half-band reconstruction filtering An up-sampled half band reconstruction filter has a seagull architecture in the form of a pair of parallel infinite impulse response (IIR) filters, one receiving as an input an input signal delayed by one sample time and the other receiving as an input a reverse ver... | 07/29/2008 |
| 7348908 | Linearity corrector using filter products A linearity corrector is provided that reduces distortion in a signal processing system, such as an ADC. The linearity corrector provides a first order signal path having distortion components connected to an adder, and a filter product circuit that is also connecte... | 03/25/2008 |
| 7328141 | Timeline presentation and control of simulated load traffic A user interface for a traffic load simulator for a telecommunication system divides call traffic into sub-groups of call traffic that have a common characteristic. Such sub-groups may include rush hour callers, lunch time callers, teenagers, internet surfers, busin... | 02/05/2008 |
| 7298129 | Time arbitrary signal power statistics measurement device and method A measurement instrument is provided with an FFT module providing a frequency domain output; and a power calculator connected to the frequency domain output to measure power statistics for a test signal of arbitrary length. In some embodiments, a spectrum integratio... | 11/20/2007 |
