51results about How to "Does not affect bandwidth" patented technology

A magnetic sensing apparatus and a magnetic sensing method thereof are provided. The magnetic sensing apparatus includes a reference magnetic field (MF) generating unit, a MF sensing unit, a signal processing unit, a calibration unit and a frequency generating unit. The MF sensing unit senses an external MF and a reference MF to provide a MF sensing signal. The signal processing unit receives and transfers the MF sensing signal into an output signal. The calibration unit calibrates the output signal according to the MF sensing signal. The frequency generating unit provides an operating frequency. The reference MF generating unit provides the reference MF according to the operating frequency, and the MF sensing unit senses the external MF and the reference MF according to the operating frequency.

The invention relates to a communication method for solving problems due to a hidden terminal in a wireless network based on a wireless interference cancellation technique and a node full-duplex mode. Under a wireless local area network physical layer, wireless network nodes are coded into special interference signals by an OFDM (Orthogonal Frequency Division Multiplexing) technology, and overlapped into data signals in the air by means of ''attachment''. The control information and the data information can be transmitted in parallel, thus, the resource consumption on control information can be saved. The nodes for receiving the data information can remove the interference signals by an interference canceling technology in order to obtain the original data. The node for receiving the control information can demodulate the control signal from the mixed signal by an energy detecting technology, so as to obtain the physical address of the node which is transmitting in a collision domain, as well as establishing a relative node list. By inquiring the transmitting state and the receiving state of adjacent nodes, the node can determine whether it is the hidden terminal, so as to avoid transmission of conflict data and increase channel utilization rate.

The invention discloses an SRAM controller and a control method. The disclosed SRAM controller comprises a plurality of bus interfaces and a plurality of SRAM interfaces. Each bus interface is directly coupled to a main device through a bus network, and each bus interface is coupled to each of all SRAM interfaces; wherein each SRAM interface is coupled to each of all the bus interfaces and is coupled to one SRAM; the bus interface receives an SRAM access request sent by the main equipment from the bus network, and sends the SRAM access request to the corresponding SRAM interface according to aspecified address in the SRAM access request; the SRAM interface responds to one or more SRAM access requests, selects one SRAM access request, and accesses the SRAM according to the SRAM access request.

The invention provides an electrochemical ultramicro electrode preparation process, which combines an ultramicro working electrode and an alignment / quasi-reference electrode to form a two-electrode system, and separates the two electrodes with a nanometer-thick insulating layer. After the diffusion layers on the two electrodes overlap, the electrochemically reversible particles are oxidized or reduced on one electrode, regenerated by reduction or oxidation on the other electrode, and then diffuse back to the original electrode, so that the probe cell The current signal output on the electrodes is amplified. The invention can significantly reduce the resistance of the solution, greatly improve the available scanning speed and detection sensitivity of the actual system analysis, and minimize the damage to the research system. The combined electrode is easy to manufacture, has a long life and is easy to update. Chemical biosensors can be used for high-spatial-resolution dynamic detection of single-cell release and real-time dynamic analysis of single vesicles in cells.

The invention relates to a method for changing the center frequency of a filter with a superconducting microstrip structure by adopting mask overlay, and belongs to the technical field of microwave communication equipment. The method comprises the following steps of: performing primary simulation designing on a superconducting filter circuit structure according to required filter indexes, manufacturing the designed filter by adopting high-resolution photoetching and ion beam etching processes, comparing a tested response curve with a simulated response cure, modifying an effective dielectric constant in simulation parameters, performing secondary simulation, keeping an inter-resonator distance unchanged, decreasing the length of each resonator in the filter to make the center of a filter circuit with a decreased length reach a required frequency point; manufacturing a mask plate for the overlay, and exposing a cut part in a secondarily-simulated filter circuit pattern; and photoetching and etching the manufactured filter to obtain the filter with required center frequency. The method is accurate in result and low in cost; and simultaneously, good passband response is ensured, and the performance of the filter meets the requirements of actual application.

A method and system for processing cloud cluster abnormalities caused by private cloud viruses. The method includes: setting a network traffic probe for each cloud computing node of the private cloud computing cluster, monitoring the traffic of the corresponding cloud computing node through the network traffic probe; judging whether the cloud computing node receives consecutive request reports with the same characteristics text; if receiving consecutive request messages with the same characteristics, it is judged whether the number of received continuous request messages with the same characteristics is equal to or greater than the preset value; if the number of request messages is equal to or greater than the preset value, Then check the status of the virtual computer that sends out continuous request messages with the same characteristics; when it is detected that the system resources of the virtual computer are abnormal, close the network of the virtual computer. The invention can reduce the use of extra system resources, reduce equipment purchase and maintenance costs, does not affect bandwidth, and can improve user experience.

The present invention provides a decryption method and system based on the Aes algorithm. The method includes: receiving ciphertext, obtaining the corresponding original authentication label and key index; According to the Aes protocol rules, it is updated and stored in the standby initial vector memory to form a corresponding standby initial vector; according to the same Aes protocol operation logic, the first plaintext and corresponding to the current ciphertext are respectively obtained according to the parameters obtained above. The second plaintext, and obtain the corresponding first authentication label and second authentication label; according to the corresponding relationship between the first authentication label, the second authentication label and the original authentication label, confirm the output decryption result. The invention can correctly decrypt the back-to-back messages to be decrypted with the same key index, reduces the discarding probability in the decryption process of such messages, and does not affect the chip bandwidth while ensuring the security of the network messages.

The invention relates to a wired network monitor system, which comprises M independent information collectors, a data center and M independent monitored network units, wherein the output terminal of each independent information collector is connected with the input terminal of the data center; the input terminals of the M independent information collectors are connected with the output terminals of the M independent monitored network units; each independent monitored network unit is connected with N independent users; and the N independent users corresponding to each monitored network units are different from the N independent users corresponding to other monitor network units. The wired network monitor system has the advantages that the data collection and analysis is achieved by the information collectors at the outlet of each network unit by adopting a multi-step data processing and centralized control manner; and the information collection policy and the data summarization are achieved by the data center, so that the processing of massive data is distributed to different units to achieve maximally centralized control, thereby reducing the data quantity to be stored. The wired network monitor system can work normally only using a simple network connection, and has the advantages of convenient implementation and simple maintenance.

In the present invented device and method, user can transmit command for opening appointed expansion port through main unit according to requirement, and through resolving command to obtain expansion port address, opening passage-way between said expansion port and main unit having said address, finally to proceed operation to said port connected USB equipment, through reporting to notify main unit USB equipment status, then user capable of to appoint operation USB equipment, to raise efficiency and ensure only one USB equipment connected with main unit in time.