222results about How to "Avoid data errors" patented technology

The invention discloses a payment processing method based on an NFC smart card and a mobile internet terminal. The payment processing method includes that S100, the mobile internet terminal interacts with the NFC smart card to acquire the card information of the NFC smart card and performs interactive verification; after the verification, the mobile internet terminal receives a piece of verification information; S200, mobile internet terminal interacts with the NFC smart card to acquire the payment information; S300, the mobile internet terminal encrypts transaction information including the verification information and payment information; S400, a background system verifies the transaction information encrypted by the mobile internet terminal to complete the payment. By the aid of the mobile internet terminal and the payment processing method, the speed of data processing can be increased, and the safety of the payment can be guaranteed.

In a moving image encoding apparatus of this invention, a generated bit amount extracting section (21) counts generated bits of variable-length-encoded data in units of macroblocks, and a reference generated bit count is set in a parameter value control section (22) as an update condition for a parameter value in each block. The boundary value of the parameter value is set in an intra / inter determination section (23) as a criterion for selection of the intra-encoding mode. In the inter-frame encoding mode, the parameter value control section (22) updates the parameter value of a block in which the generated bit count value of encoded data obtained by the generated bit amount extracting section (21) exceeds a reference value. The intra / inter determination section (23) determines that the influence of a data error is large in a block in which the parameter value is continuously updated and exceeds the boundary value, and switches the current mode to the intra-encoding mode to perform refresh operation.

The invention discloses a monitoring device and method for aerosol in a pipeline and a pipeline system. The monitoring device comprises a variable diameter mechanism, a detection circuit, a sampling mechanism, a backflow mechanism, a first detection mechanism, a second detection mechanism and a first control valve, wherein the variable diameter mechanism can control the opening of the pipeline; the detection circuit is provided with a measuring device for testing the aerosol concentration and the particle size distribution; the inlet end of the sampling mechanism is communicated with the pipeline positioned at the upstream of the variable diameter mechanism, and the outlet end of the sampling mechanism is communicated with an inlet of the detection circuit; the outlet end of the backflow mechanism is communicated with the pipeline positioned at the downstream of the variable diameter mechanism, and the inlet end of the backflow mechanism is communicated with an outlet of the detectioncircuit; the first detection mechanism is used for detecting the flow rate of gas in the pipeline; the second detection mechanism is used for detecting the flow rate of gas in the detection circuit; and the first control valve is used for controlling the flow rate of the gas in the detection circuit. The monitoring device disclosed by the invention has the benefit that the opening of the variablediameter mechanism can be dynamically adjusted, so that the flow rate of sample gas is the same as that of the gas in the pipeline, and the measuring accuracy is improved.

The application provides a loudspeaker nonlinear parameter testing device system which comprises a direct current offset signal output device, a laser distance measuring instrument and a loudspeaker testing system. The application further discloses a loudspeaker nonlinear parameter testing method which comprises the steps that: the direct current offset signal output device applies a direct current offset voltage signal to a loudspeaker to be tested; the laser distance measuring instrument measures an offset displacement of a loudspeaker voice coil; under a condition that values of direct current offset voltage signals at both ends of the loudspeaker to be tested are kept unchanged, an impedance curve and a displacement-voltage transfer function curve of the loudspeaker are acquired by the loudspeaker testing system; a value of each nonlinear parameter of the loudspeaker in a state that the voice coil is offset is calculated out; and the steps above are repeated to acquire a nonlinear curve of each nonlinear parameter. According to the loudspeaker nonlinear parameter testing device system and testing method provided by the application, the loudspeaker is directly tested by equipment, such as the loudspeaker testing system, the laser distance measuring instrument and the like, and the nonlinear parameters of the loudspeaker are directly acquired, so that accuracy of measured data is effectively improved.

A transmission controlling method for a wireless communication system wherein a plurality of data blocks can be transmitted from a sender apparatus having a plurality of sending antennas to a receiver apparatus, the transmission controlling method including on the sender apparatus, sending process information which prevent plurality of data blocks from competing to the receiver apparatus with a control channel; and on the receiver apparatus, combining, based on the process information, the data block received already and a re-sent data block.

A virtual first in first out (FIFO) direct memory access (DMA) device applied in an electronic device having a processor, a UART unit and a virtual FIFO unit is provided. In the virtual FIFO DMA device, a DMA unit is for transferring data between the UART unit and the virtual FIFO unit. A virtual FIFO controller, which has a read pointer and a write pointer, is electrically connected with the DMA unit. When the DMA unit reads data from or writes data into the virtual FIFO unit, the virtual FIFO controller correspondingly changes the value of the read pointer or the write pointer. A virtual port is electrically connected to the DMA unit and the processor. A processor reads data from or writes data into the virtual FIFO unit via the virtual port and the DMA unit.

A method for operating a one-time programmable read-only memory (OTP-ROM) is provided. The OTP-ROM comprises a first gate and a second gate respectively disposed on a gate dielectric layer between a first doped region and a second doped region on a substrate, wherein the first gate is adjacent to the first doped region and coupled to the first doped region, the second gate is adjacent to the second doped region, the first gate is electrically coupled grounded, and the OTP-ROM is programmed through a breakdown effect. The method comprises a step of programming the OTP-ROM under the conditions that a voltage of the second doped region is higher than a voltage of the first doped region, the voltage of the second gate is higher than a threshold voltage to pass the voltage of the second doped region, and the first doped region and the substrate are at a reference voltage.

The invention discloses an automatic information acquisition system for medical wastes. The system comprises a sensor unit which is used for acquiring weight information of the medical waste; a data acquisition unit which is used for acquiring label information of the medical waste and identity information of personnel; a master control unit which is used for identifying the identity of personnel and reading and processing the label information of the medical waste; and an operation displaying unit which is used for operation of a medical waste management process. The sensor unit is connected with the master control unit and the operation displaying unit and comprises a pressure sensor, an amplifier and an A / D signal converter. The master control unit comprises an RAM chip analyzing module and a CPU. The automatic information acquisition system has advantages of replacing existing manual operation management, effectively improving precision of medical waste management data, reducing number of medical waste management errors, simplifying an operation process, settling a problem of easy errors in the medical waste management process, and satisfying a requirement of a medical institute for medical waste management.