91 results about "Type error" patented technology

Haze-type phase shift error due to stray light reflections in a phase-type TOF system is reduced by providing a windowed opaque coating on the sensor array surface, the windows permitting optical energy to reach light sensitive regions of the pixels, and by reducing optical path stray reflection. Further haze-type error reduction is obtained by acquiring values for a plurality (but not necessarily all) of pixel sensors in the TOF system pixel sensor array. Next, a correction term for the value (differential or other) acquired for each pixel in the plurality of pixel sensors is computed and stored. Modeling response may be made dependent upon pixel (row,column) location within the sensor array. During actual TOF system runtime operation, detection data for each pixel, or pixel groups (super pixels) is corrected using the stored data. Good optical system design accounts for correction, enabling a simple correction model.

The invention, belonging to the technical field of power supply management, discloses a low dropout linear voltage regulator, which comprises a power tube, a buffer, a first transconductance amplifier, a second transconductance amplifier, a current subtractor and a Miller compensation capacitor. The low dropout linear voltage regulator can remarkably increase slew rate and bandwidth of a common grid type error amplifier and enlarge the scope of the input common-mode voltage by three techniques of adaptive current bias, the current subtractor and capacitance coupling type dynamic charge and discharge, so that transient response speed of the linear voltage regulator is greatly increased and amplitude of the output voltage peak is reduced, meanwhile, good stability of a loop circuit is ensured.

Method for automatically analyzing customer's bill, such as cell phone bill, received in electronic format for errors and utilization against company's published plan by third-party on third-party's website for customer. The company's published plan is previously stored on third-party's website. Third-party advises customer of results, in real-time, and provides blind feedback to billing company by type error and utilization. Results and feedback are specific to each customer and billing company, and also provides security for both. Promotional materials are provided to customer for revenue to third-party.

Disclosed are a transconductance adjustment circuit, a transconductance type error amplification unit and a switching type power converter. The transconductance adjustment circuit is at least partially based on the output voltage of the switching type power converter to generate a bias current directly proportional to the output voltage, the bias current is provided for a transconductance type error amplifier in the transconductance type error amplification unit, and therefore transconductance of the transconductance type error amplifier is directly proportional to the output voltage. A negative feedback loop is adopted by the switching type power converter to adjust the output voltage of the power converter, the transconductance adjustment circuit and the transconductance type error amplification unit enable the bandwidth of the negative feedback loop to be basically stable, and the bandwidth is not affected by changes of the expected value of the output voltage.

Method for automatically analyzing customer's bill, such as cell phone bill, received in electronic format for errors and utilization against company's published plan by third-party on third-party's website for customer. The company's published plan is previously stored on third-party's website. Third-party advises customer of results, in real-time, and provides blind feedback to billing company by type error and utilization. Results and feedback are specific to each customer and billing company, and also provides security for both. Promotional materials are provided to customer for revenue to third-party.

The invention discloses a method and device for measuring direct current magnetic bias error characteristics of a current transformer. Current is simulated into a power frequency current source and a direct-current current source according to an equal ampere-turn principle, wherein the power frequency current source and the direct-current current source are independent, the standard computed tomography CT is used for detecting variation of error characteristics of the measured CT influenced by direct current magnetic bias, a method and device for measuring current comparison type error characteristics or voltage comparison type error characteristics is included, data can be compared in a whole process, and the method and device is suitable for measurement of error characteristics of during direct current magnetic bias of a straight through current transformer and also suitable for checking direct current magnetic bias error characteristics of current transformer coils made of different iron core materials.

Haze-type phase shift error due to stray light reflections in a phase-type TOF system is reduced by providing a windowed opaque coating on the sensor array surface, the windows permitting optical energy to reach light sensitive regions of the pixels, and by reducing optical path stray reflection. Further haze-type error reduction is obtained by acquiring values for a plurality (but not necessarily all) of pixel sensors in the TOF system pixel sensor array. Next, a correction term for the value (differential or other) acquired for each pixel in the plurality of pixel sensors is computed and stored. Modeling response may be made dependent upon pixel (row, column) location within the sensor array. During actual TOF system runtime operation, detection data for each pixel, or pixel groups (super pixels) is corrected using the stored data. Good optical system design accounts for correction, enabling a simple correction model.

A code verification system is utilized to type check compiled code. The code verification system includes memory and a code verifier. The memory is utilized to store a compiled program. The code verifier analyzes instructions of the program and generates a plurality of type signatures based on the instructions The type signatures indicate the input type constraints and the output type descriptions of the instructions, and the code verifier analyzes the type signatures to detect a type error.

The invention provides a switching power supply and a controller thereof. The controller comprises a constant current / constant voltage control module, a subdivision control type error amplifier and a PWM (pulse-width modulation) generator, wherein the constant current / constant voltage control module is used for detecting an output constant current value / an output constant voltage value of the switching power supply, and converting the output constant current value / the output constant voltage value into an equivalent value; the subdivision control type error amplifier is connected with the constant current / constant voltage control module to carry out error amplification on the equivalent value and a preset reference value, and the trans-conductance or the magnification time of the subdivision control type error amplifier are gradually reduced within two or more continuous time buckets after a circuit is started; and the PWM generator is connected with an output end of the subdivision control type error amplifier, the duty ratio of a driving signal is confirmed according to an output signal of the subdivision control type error amplifier, and the driving signal is used for driving a power tube of the switching power supply. According to the witching power supply and the controller, the quick start of the circuit can be realized, the overshoot of output voltage / current can be avoided, and the characteristic of the circuit can not be influenced when the circuit stably works on the premise that the VCC (virtual channel connection) capacitance power supply time is not prolonged.

The invention relates to a single phase intelligent electric energy meter collector compatibility type automation verification system and a method. The verification system comprises a programmable logic controller (PLC) and a rolling barrel conveyor line connected with the PLC, 6 degrees of freedom robots, a compatibility type verification conveyor line, a compatibility type identification module, a compatibility type pressure-proof testing module, a compatibility type appearance checking module, a compatibility type error and function verification module, a sealing module, a compatibility sticking certification module and a sorting module. The verification method is the identification, the pressure-proof testing, the appearance checking, the error and the function verification, the sealing, the sticking certification, the sorting and enchasing of a to-be check list of a primary station server, the PLC controlling rolling barrel conveyor line, the 6 degrees of freedom robots, a compatibility type verification delivering module, the compatibility type identification module, the compatibility type pressure-proof testing module and the like. Compared with the prior art, the single phase intelligent electric energy meter collector compatibility type automation verification system and the method have the advantages of being capable of holding the automatic verification of the single phase intelligent electric energy meter and the collector at the same time, capable of improving working efficiency and the like.

The method is for hardening a computer based on off-the-shelf components so that it resists bombardment by particles of cosmic origin encountered at high altitude and near the poles. It relates more particularly to a computer comprising a processor / bridge pair, the bridge ensuring auxiliary functions for controlling the data exchanges between the processor and a random-access memory incorporating a Hamming-type error corrector code into the information exchanged and consists in inserting between the processor / bridge pair and the random-access memory an interface device carrying out a two-way transcoding between the Hamming-type error correction code incorporated into the information exchanged by the auxiliary functions for controlling the data exchanges of the processor / bridge pair and a Reed-Solomon-type error correction code adapted to the architecture of the random-access memory.

The invention discloses a method and device for data overtime aging processing, which are applied to a data storage system comprising a small computer system interface (SCSI) controller and an SCSI device. The method is as follows: the SCSI controller receives and stores error messages sent by the SCSI device; the SCSI controller judges whether corresponding error messages reaches overtime aging time or not according to the time stamps of same-type error messages stored in the SCSI controller and current time; and if yes, overtime aging processing is carried out on the corresponding error messages by the SCSI controller. By using the method and device disclosed in the invention, system source overhead is saved while realizing overtime aging of error messages.

To present a control circuit of a DC-DC converter to be incorporated in a logic circuit, having a digital error amplifier capable of controlling the gain depending on an input voltage and an output voltage, without requiring a resistance or a capacitor of high precision used in a feedback circuit or the like. A SigmaDelta AD converter type error amplifier 10 includes an arithmetic unit 20 , an integrating unit 21 , a 1-bit quantizing unit 22 , a D / A converter 23 , and a first counter 24 . The arithmetic unit 20 outputs a differential signal of an output voltage Vout and an average output voltage AV. The integrating unit 21 outputs an integral signal by integrating the differential signal. The 1-bit quantizing unit 22 outputs a 1-bit digital signal by quantizing the integral signal. The D / A converter 23 converts from digital to analog depending on a 1-bit digital signal. A digital PWM circuit 11 determines the on-duty of the main switching element of the DC-DC converter depending on the pulse density of the D / A converter 23.