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94 results about "Conformance testing" patented technology

Conformance testing — an element of conformity assessment, and also known as compliance testing, or type testing — is testing or other activities that determine whether a process, product, or service complies with the requirements of a specification, technical standard, contract, or regulation. Testing is often either logical testing or physical testing. The test procedures may involve other criteria from mathematical testing or chemical testing. Beyond simple conformance, other requirements for efficiency, interoperability or compliance may apply. Conformance testing is performed by an accredited independent organization, which can sometimes be the author of the standard (UL, FM for example). When testing is accompanied by Certification, the products or services may then be advertised as being certified in compliance with the referred technical standard. Manufacturers and suppliers of products and services rely on such certification including listing on the certification body's website, to assure quality to the end user and that competing suppliers are on the same level.

Apparatus and methods for enhancement of speech

A method for improving the intelligibility of an incoming telephone signal, including boosting loudness of at least one band of poorly heard frequencies of the signal within at least one band of intensities of the signal, the band lying below a predetermined intensity level at which telephone standard conformance testing is performed, thereby to generate a differentially boosted telephone signal. Alternatively or in addition, intelligibility of sibilants in a narrow band telephone signal is enhanced, by doubling the sampling rate of the narrow band signal by interpolation, thereby to provide a narrow band interpolated signal, generating a harmonic extrapolation signal by harmonically extrapolating from the narrow band interpolated signal thereby to estimate the missing portions of the telephone signal, the harmonic extrapolation comprising a sequence of pulses located at peaks of the interpolated signal, generating a missing energy estimator measure estimating energy missing at high frequency bands of the telephone signal, continuously modulating the amplitude of the pulses in said sequence of pulses based on said missing energy estimator measure, thereby to generate a modulated signal, passing the modulated signal through a shaping filter thereby to obtain a shaped signal, and summing the shaped signal with the interpolated signal.
Owner:DSP GROUP

Apparatus and methods for enhancement of speech

A method for improving the intelligibility of an incoming telephone signal, including boosting loudness of at least one band of poorly heard frequencies of the signal within at least one band of intensities of the signal, the band lying below a predetermined intensity level at which telephone standard conformance testing is performed, thereby to generate a differentially boosted telephone signal. Alternatively or in addition, intelligibility of sibilants in a narrow band telephone signal is enhanced, by doubling the sampling rate of the narrow band signal by interpolation, thereby to provide a narrow band interpolated signal, generating a harmonic extrapolation signal by harmonically extrapolating from the narrow band interpolated signal thereby to estimate the missing portions of the telephone signal, the harmonic extrapolation comprising a sequence of pulses located at peaks of the interpolated signal, generating a missing energy estimator measure estimating energy missing at high frequency bands of the telephone signal, continuously modulating the amplitude of the pulses in said sequence of pulses based on said missing energy estimator measure, thereby to generate a modulated signal, passing the modulated signal through a shaping filter thereby to obtain a shaped signal, and summing the shaped signal with the interpolated signal.
Owner:DSP GROUP

Credible platform module test device

The invention provides a trusted platform module testing device which comprises a basic information testing system, a cryptographic code service testing system and a trusted service testing system. The basic information testing system is used for testing basic information of different trusted platform modules, and the basic information of the trusted platform module comprises a base attribute testing function and a function coverage rate; the cryptographic code service testing system is used for testing the basic cryptographic code function of the trusted platform module as a security chip, and the basic cryptographic code function comprises a cryptographic algorithm function, a cryptographic key certificate function and a protocol function; the trusted service testing system is used for testing trusted characteristics of the trusted platform module and the trusted characteristics comprise a trusted memory/report and testing function, a credibility degree memory report function, a terminal security service function and remote certificate function; and all the testing systems are installed on a trusted computing system in which the trusted platform module is arranged as a hardware chip. The application of the device can conduct a standard compliance test for the TPM and efficiently cover the trusted functions of the TPM to be tested.
Owner:WUHAN UNIV

Low-cost rapid measurement method for ultrasonic transducer signal and circuit

The invention discloses a measurement method for ultrasonic transducer signal and a circuit, and is used for the conformance testing of ultrasonic transducer signals in ultrasonic flowmeter measurement. In the measurement method, the transducer is put into an airtight container, a baffle plate with adjustable acoustic wave path length is arranged in the container according to the design. The voltage, pulse count, frequency, and duty cycle of the excitation signals are adjusted, and then the reflected echo signals are processed. The processing circuit comprises a preamplifier circuit, a filter circuit, a gain control circuit and a peak-sampling circuit. The echo signals are stabilized in the same peak value by a digital AGC circuit formed by the gain control circuit and the peak value through the circuit, finally the parameters of the transducer are determined according to the magnification times of the echo signals, and a basis is provided for transducer pairing. Meanwhile, according to the changes of the sonic path distance under the same incentives condition, the measurement method can be used for the selection of different pipe diameter flowmeter transducers. The measurement method for the ultrasonic transducer signal and the circuit has the advantages of low cost, low power consumption, measuring stability and high resolution.
Owner:CHINA JILIANG UNIV

Transmission protocol compliance detection device, system and method

InactiveCN108737212AImprove the ability to identify and expandSupport and promote standardized managementData switching networksTransmission protocolFeature extraction
The invention discloses a transmission protocol compliance detection device, system and method. Parsing on various current general protocols is implemented, and a private protocol is subjected to identification detection by the flow of feature extraction, feature loading and feature string matching; a detection result can be subjected to showing, statistics and report export by a uniform interface; a user interface is provided, and the transmission protocol compliance detection device, system and method have functions of defining a new protocol, starting or stopping detection, uploading a file, showing the detection result, exporting the detection result and the like; receiving on a user command and a configuration from Web is implemented; when a detection command is executed, the new protocol is detected according to a defined new standard; and newly added protocol features can be directly subjected to dynamic defining and loading, so that the protocol identification expansion abilityis greatly improved, fine management control on the standard compliance test flow and scientific and fair evaluation on a compliance analysis result are implemented, standardized management of construction of the information communication field is effectively supported and propelled, and the interconnection ability between a network system and equipment is promoted.
Owner:中国人民解放军61062部队科技装备处

Vehicle-mounted terminal software real vehicle testing method and system

The invention discloses a vehicle-mounted terminal software real vehicle testing method and system. The vehicle-mounted terminal software real vehicle testing method comprises the steps: adopting a CAN transceiver, a testing computer and an upper computer to build a testing platform, updating the vehicle-mounted terminal software mounted on a vehicle to a to-be-tested software version, and ensuring that the vehicle is connected with an upper platform; starting a test upper computer, importing a to-be-tested vehicle model signal list, and starting the vehicle; inputting a VIN code of a to-be-tested vehicle into an interface of the testing upper computer, and clicking to start testing; enabling the test upper computer to read CAN bus data and a data value reported by the vehicle-mounted terminal in the testing platform, and comparing the consistency of the CAN bus data and the data reported by the vehicle-mounted terminal to the platform after data analysis; and outputting a test report after the test. A vehicle-mounted terminal software real vehicle test system comprises the vehicle-mounted CAN signal transceiver, the test computer and the upper computer, one end of the vehicle-mounted CAN signal transceiver is connected with an automobile OBD port to receive the CAN bus data in the test process, and the other end of the vehicle-mounted CAN signal transceiver is connected with the test computer and the upper computer.
Owner:JIANGLING MOTORS

Automatic network diagnosis test system for automobile electric control unit and test method thereof

The invention discloses an automatic network diagnosis test system for an automobile electric control unit, which comprises an electric control unit to be tested. The electric control unit to be tested is connected with an automatic test board card, the automatic test board card is electrically connected with a programmable power supply, the automatic test board card is also in communication connection with a CAN analyzer, the CAN analyzer is connected with an upper computer, and the upper computer is connected with the programmable power supply. The invention further provides a test method based on the automatic network diagnosis test system for the automobile electronic control unit. The test method comprises a physical layer function test method and a message consistency test method. The test system builds a set of complete test environment, carries out advanced test verification based on a protocol conformance level on each main electric control unit of the whole vehicle CAN network before the vehicle enters a trial-manufacture stage, and is loaded with a unified test standard and a unified test process, so that the traceability of the test process and the effectiveness of the test result are greatly improved, and the test cost is reduced.
Owner:DONGFENG OFF ROAD VEHICLE CO LTD

Micro power wireless communication protocol conformance testing system for short-distance power communication

The invention discloses a micro power wireless communication protocol conformance testing system for short-distance power communication. The micro power wireless communication protocol conformance testing system includes a multi-functional electromagnetic wave cell which is used for accommodating a tested micro power wireless communication device so as to isolate influence of an external environment, an interception unit which is used for monitoring interaction communication between the tested micro power wireless communication device and other communication devices and providing monitoring data to an industrial personal computer, a standard protocol signal source which is used for providing a standard protocol signal source to a comprehensive test instrument and the industrial personal computer, the comprehensive test instrument which is used for interacting with the tested micro power wireless communication device under the control of the standard protocol signal source so as to obtain test data and provide the test data to the industrial personal computer, and the industrial personal computer which is used for judging protocol conformance of the tested micro power wireless communication device according to the monitoring data provided by the interception unit and/or the test data provide by the comprehensive test instrument under the control of the standard protocol signal source. Thus, the protocol conformance of the micro power wireless communication device for short-distance power communication can be tested.
Owner:ELECTRIC POWER RES INST STATE GRID JIBEI ELECTRIC POWER COMPANY +2
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