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7620861 |
Method and apparatus for testing integrated circuits by employing test vector patterns that satisfy passband requirements imposed by communication channels
Embodiments of an apparatus and method for high-speed testing of a device under test are described herein, where the device under test is coupled to a tester via a limited passband communication...
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7607579 |
Information processing apparatus
The invention provides an information processing apparatus that includes: a card slot in which a card-type medium is inserted; and a data communication unit that performs data exchange with the...
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7606350 |
Incentive-based DSL system
Improved DSL and/or other communication system services can be provided by motivating users, service providers and operators to implement and comply with one or more operational conditions, such as...
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7593511 |
Method for training line drivers in a communication system
A method for training line drivers in a communication system; each driver coupled with at least one communication line configured for communicating with subscriber equipment using at least one...
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7587015 |
Asynchronous digital data capture
The present invention provides asynchronous digital capture by first, capturing the digital output of the device under test (DUT) clock on an automated test equipment (ATE) digital channel. Next,...
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7583727 |
Single ended DMT test method for determining ADSL capability of cables
A DMT (Discrete Multi-Tone) test method is employed by a single test device to estimate the theoretical and practical data rates of a cable under test for a pair of target ADSL (Asymmetric Digital...
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7583639 |
System and method for determining data rate
Described herein are systems and methods for determining data rate in a direct sequence spread spectrum system. The systems may include circuits or processors for receiving a signal that was...
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7565119 |
Predistortion correction loop-back based on high linearity and low linearity modes
A power amplifier pre-distortion calibration technique transmits two packets at different power levels for use in the calibration. As each packet is transmitted, it is received by the same device...
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7564896 |
Method for measuring multiple parameters of a signal transmitted by a signal generator
A method is disclosed for measuring one or more parameters of a signal generated by a signal generator. The method employs capturing and analyzing a train of data packets or other forms of signals...
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7551694 |
Limiter based analog demodulator
A limiter based analog demodulator includes a power amplifier receiving a base-band signal and a local clock operating at the base-band frequency. A first multiplier receives an output from the...
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7548581 |
At-command analyzing device
An UART receives asynchronous transmission serial data based on a baud-rate clock from a DTE. An MPU analyzes the data received by the UART. A baud-rate generating portion generates the baud-rate...
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7526010 |
Doped multi-rate spread spectrum composite code
A composite code is made for example by exclusive-OR'ing each real element of a first constituent code A with each element of a second constituent code B to obtain a basic composite code. To...
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7522661 |
Method of producing a two-dimensional probability density function (PDF) eye diagram and Bit Error Rate eye arrays
A method of producing of a two-dimensional probability density function eye diagram and Bit Error Rate eye arrays generates a two-dimensional PDF array of a correlated waveform record of a data...
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7519111 |
Apparatus and method for providing system and test clock signals to an integrated circuit on a single pin
In a configuration testing integrated circuits, the system clock signals are forced to the same frequency as the test clock signals. When the test clock signals and the system clock signals have...
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7509095 |
Method and system for identifying occurrence of shadowing phenomenon during wireless communications
A method for identifying occurrence of shadowing phenomenon is to be implemented using a wireless communications system that includes signal transmitting and receiving devices. The signal-receiving...
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7505837 |
Method and apparatus for linking to a vehicle diagnostic system
Exemplary embodiments of the present invention relate generally to an improved off-board tool for communicating with a vehicle diagnostic system using a CAN communications protocol. In one...
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7502423 |
Digital modulator and digital modulation method
Each of a first oversampling filter and a second oversampling filter oversamples to an n×m times as high frequency as a symbol rate. The first and second oversampling filters then output output...
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7499486 |
Data transmission rate adaptation in a wireless communication system
In a wireless system comprising at least one transceiver configurable for communication over a wireless communication channel, the transceiver comprising a transmitter and a receiver, a method for...
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7493223 |
Pattern identification and bit level measurements on repetitive patterns
A method of pattern identification and bit level measurements for a high speed digital signal using an oscilloscope converts an input waveform into a bit stream sequence. From the bit stream...
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7483477 |
User interface for selection of sampling parameters in a logic analyzer whose data receivers are in groups each having a separate threshold that is common to the channels within each group
Eye diagrams are made for signals on each channel in a group. Outlying signals not exhibiting overlap for a sampling parameter common for all channels may be ignored and a warning given. Selected,...
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7471220 |
Electronic test circuit for an integrated circuit and methods for testing the driver strength and for testing the input sensitivity of a receiver of the integrated circuit
The electronic test circuit for an integrated circuit to be tested has an input for receiving an analog data stream ( 23 ), a programmable digital line emulator (TPE 1 ) for emulating properties of...
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7463702 |
System and method for one-pass blind transport format detection
For use in a CDMA receiver having a Viterbi decoder, a system for, and method of, performing one-pass blind transport format detection (BTFD) with respect to a received frame and a WCDMA receiver...
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7461317 |
System and method for aligning a quadrature encoder and establishing a decoder processing speed
A system and method are disclosed for determining the minimum required processing speed for a quadrature decoder using measurements of encoder performance, and to assess the safety factor of a...
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7460619 |
Method and system for optimizing coding gain
A method and system for optimizing coding gain that alters the backsearch buffer length and/or the input buffer length of a decoder in response to one or more transmission performance...
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7457354 |
Method and device of analyzing a signal transmitted via a communication link
Technology is proposed for estimating one or more characteristics of a main signal transmitted via a communication link, wherein the main signal is composed from a number of component signals...
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7453932 |
Test device and setting method
A testing apparatus for testing a device under test is provided, wherein the testing apparatus includes: a comparator for receiving a signal output from the device under test and converting the...
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7450660 |
Apparatus and method for digital modulation
A first interpolation section 14 and a second interpolation section 24 perform sampling on input data Id 4 and Qd 4 having a sampling frequency fover so that resulting data will have a...
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7447516 |
Method and apparatus for data transmission in a mobile telecommunication system supporting enhanced uplink service
A method and an apparatus for data transmission in a mobile telecommunication system supporting an enhanced uplink service are provided. A Transport Format Combination (TFC) selector determines TF...
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7430237 |
Decoderless bit-error-rate estimation for convolutionally encoded transmissions in wireless systems
In a UMTS (universal mobile telecommunications system) based system, a wireless receiver implements “effective signal-to-noise (E b /N o ) based BER estimation.” In particular, the wireless...
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7428264 |
Transmission power control method for a wireless communication system
Transmission power relative to a propagation path having a variation in gain is controlled to increase communication channel capacity, and a data rate is controlled in accordance with the variation...
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7424052 |
Method of, and receiver for, estimating the bit rate of data
A bit rate detector for detecting the speed of transmission of a data signal having one of at least two alternative bit rates, comprises a differential decoder ( 28 ) for differentially decoding...
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7418532 |
Data transfer device, data transfer system, and data transfer method
A transfer start/end detecting section detects timing at which a DMARQ signal becomes an H level or an L level. A transfer time-measuring section measures a transfer time during which data transfer...
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7418249 |
Radio apparatus
A demodulator demodulates a received signal. A decoder performs inverse-spread spectrum processing on a demodulated signal. The decoder calculates a CIR value and outputs it to a CPU and a...
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7418031 |
Automatic baud rate determination
The present invention provides an electronic device consisting of a Universal Asynchronous Receiver Transmitter (UART) having its transmit data output connected to a triggered timer and a computing...
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7403493 |
Method and device for acquiring electronic information about transmission speeds in a network
The invention relates to a method and a device for acquiring electronic information about transmission speeds between nodes of an acyclical network, in particular of an IEEE 1394 bus network,...
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7400674 |
Method and device for controlling transmission of sets of data
A method for controlling transmission of sets of data comprises receiving information relating to at least a part of a first data set. This information may comprise the at least part of the first...
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7397790 |
Packet switched connections using dedicated channels
A temporary (temp) dedicated channel (DCH) is used to support communications. The temp-DCH channel is a channel that is assigned to a user having a set duration. After the duration expires, the...
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7379494 |
MAC protocol employing multiple data rates
Method and apparatus for combining high data rate traffic and low data rate traffic on a common transmission medium while maximizing efficient use of available spectrum. Since spectrum is an...
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7376200 |
Method and apparatus for suppressing carrier leakage
A method and system for determining at least one DC offset compensation value used to suppress carrier leakage occurring on real and imaginary signal paths in an analog radio transmitter when a...
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7372901 |
Method and apparatus for modem rate adaptation
A method and system for dynamically determining transmission characteristics of a modem transmitting information over a network is disclosed. The method comprises the steps of determining a...
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7359436 |
Method for automatic detection of the data rate in a network, particularly a CAN bus type network, and for configuration to the detected data rate, corresponding device
A method for automatic detection of the network data rate and for configuration at the detected data rate by a device connected to the network. This method includes an initialisation phase and an...
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7349467 |
Data demodulation apparatus and method
The invention provides a data decoding apparatus and method by which the data rate can be discriminated at a high speed using a Viterbi decoding process. Receive data are successively Viterbi...
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7342984 |
Counting clock cycles over the duration of a first character and using a remainder value to determine when to sample a bit of a second character
In an auto baud system and method, the baud rates between two communicating devices are synchronized by timing the transmission of a plurality of bits by counting the cycles of a reference clock....
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7340186 |
Discrimination phase margin monitor circuit, transmitting/receiving device and communication system
The discrimination phase margin monitor circuit ( 10 ) of the present invention comprises a first discrimination circuit ( 11 and 12 ) discriminating an input data signal using a clock signal...
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7339984 |
Method and apparatus for jitter measurement using phase and amplitude undersampling
An apparatus and method for measuring jitter using phase and amplitude undersampling. A sampling circuit samples an input signal to obtain amplitude and phase information, a computation circuit...
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7333536 |
System and method for auto baud rate detection in asynchronous serial communication
A microcontroller with embedded software for automatically detecting a baud rate of an asynchronous serial bit stream during an initial set up phase of a microcontroller. The microcontroller is...
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7333535 |
Variable block rate ADSL
By allowing the block rate to vary, the existing Asymmetric Digital Subscriber Line (ADSL) system is modified to better address extended reach and higher data rates. A method is disclosed for...
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7321616 |
Method and apparatus for increasing soft modem capacity
A method and apparatus for reducing processing requirements of a pool of soft modems is disclosed. In one embodiment, the method comprises queuing one or more retrain requests and responding to the...
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7321615 |
At-command analyzing method
An UART receives asynchronous transmission serial data based on a baud-rate clock from a DTE. An MPU analyzes the data received by the UART. A baud-rate generating portion generates the baud-rate...
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7315574 |
System and method for generating a jittered test signal
A multi-speed jittered signal generator ( 216, 400 ) that generates a full-speed jittered signal ( 404 ) by scaling a low-speed jittered signal ( 420 ) using a frequency scaler ( 428 ). The...
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