Abstract: A method for detecting malicious program behavior includes performing program verification based on system activity data, analyzing unverified program data identified from the program verification to detect abnormal events, including analyzing host-level events to detect abnormal host-level events by learning a program representation as a graph embedding through an attentional architecture based on an invariant graph between different system entities, generating detection results based on the analysis, and performing at least one corrective action based on the detection results.

Abstract: An audio processing circuit includes a cascade operational amplifier circuit, an output node, and a pull-down circuit. The cascade operational amplifier circuit includes a first operational amplifier circuit and a second operational amplifier circuit. The first operational amplifier circuit includes a main operational amplifier and a secondary operational amplifier that are connected in parallel. The pull-down circuit is configured to pull down a voltage at the output node after the first operational amplifier circuit is turned on. The second operational amplifier circuit is configured to, after the secondary operational amplifier is turned on, control a voltage gain of the secondary operational amplifier to change gradually from low to high.

Abstract: The present invention discloses a combined automatic anti-explosion method for a gas drainage pipeline, comprising specific steps of: preparation of an anti-explosion installation piping; connection of the installation piping and the gas drainage pipeline; assembly of a porous foam material and an automatic control valve; installation of an automatic powder-spraying device and a signal analyzer; installation of a temperature sensor and a pressure sensor; and signal processing and automatic anti-explosion. According to the present invention, the porous foam material is located in a bottom groove of an arched pipeline when no gas explosion occurs in the gas drainage pipeline, without affecting the extraction effect of the gas drainage pipeline.

Abstract: Embodiments of the present invention provide a digital-to-analog conversion circuit, where the digital-to-analog conversion circuit includes a signal amplitude detector and a digital-to-analog converter. When the signal amplitude detector detects a low signal amplitude, a first current module in the digital-to-analog converter operates normally and a second current module in the digital-to-analog converter stops operating. In addition, when stopping operating, the second current module is in a state of a third bias voltage and a fourth bias voltage that are generated by a second bias circuit. When the amplitude detector detects a high signal amplitude subsequently, the second current module resumes normal operation. After operating normally, the second current module switches back to a first bias voltage and a second bias voltage that are generated by a first bias circuit. This reduces a nonlinearity problem caused before a second current module resumes normal operation.

Abstract: An organic light-emitting display panel includes an array substrate including a plurality of driving elements; a plurality of organic light-emitting components corresponding to the plurality of driving elements; and a plurality of fingerprint identification units, where each organic light-emitting component includes an anode and a cathode, and light emitted by the organic light-emitting component emits away from the array substrate, a pixel defining layer is disposed between adjacent organic lighting emitting components, a fingerprint identification unit is disposed at a non-display area between organic light-emitting components and on a side of the pixel defining layer away from the array substrate, and a periphery of the fingerprint identification unit is provided with a light-shielding layer, and the light-shielding layer blocks the fingerprint identification unit from illumination by the light emitted by the organic light-emitting component.

Abstract: Various embodiments provide novel tools and techniques for position and/or motion tracking, including without limitation solutions that can be used for excavation and similar applications. In a particular aspect of some embodiments, a communication device with a camera may be provided to track the position and motion of a stick of an excavator or reference features located on a stick of an excavator. A location of a bucket of an excavator may then be calculated relative to the stick or reference features on the stick of the excavator. Thus, an operator of the excavator can use the communication device to effectively and efficiently track the location of the excavator bucket without the need for a second person to provide instructions about the location of the bucket.

Abstract: A circuit system including an operational amplification circuit is disclosed. The operational amplification circuit includes N stages of operational amplification units that are cascaded, an input terminal of the 1st stage of operational amplification unit is an input terminal of the operational amplification circuit, and an output terminal of the Nth stage of operational amplification unit is an output terminal of the operational amplification circuit; an output terminal of the ith stage of operational amplification unit is connected to an input terminal of the (i+1)th stage of operational amplification unit, so as to provide an input signal for the (i+1)th stage of operational amplification unit; and there is a feedback channel from the output terminal of the Nth stage of operational amplification unit to an input terminal of each of the 1st stage of operational amplification unit to the Nth stage of operational amplification unit.

Abstract: A pop sound suppression method, an audio output circuit, and a terminal suppress a pop sound that is generated when an audio output circuit is in an alternating current (AC) coupling structure. The output circuit includes an output power amplifier, a common-mode voltage buffer, a reference voltage generation circuit, a powered-on pop sound suppression switch, and a common-mode switch. The powered-on pop sound suppression switch is configured to control, in a power-on process of the audio output circuit, a voltage level of an output node to be zero. The common-mode switch is configured to control, when a reference voltage level of the reference voltage generation circuit is zero, the voltage level of the output node to be equal to the reference level.

Abstract: A method for implementing automated threat alert triage via data provenance includes receiving a set of alerts and security provenance data, separating true alert events within the set of alert events corresponding to malicious activity from false alert events within the set of alert events corresponding to benign activity based on an alert anomaly score assigned to the at least one alert event, and automatically generating a set of triaged alert events based on the separation.

Abstract: The present invention discloses a combined automatic anti-explosion method for a gas drainage pipeline, comprising specific steps of: preparation of an anti-explosion installation piping; connection of the installation piping and the gas drainage pipeline; assembly of a porous foam material and an automatic control valve; installation of an automatic powder-spraying device and a signal analyzer; installation of a temperature sensor and a pressure sensor; and signal processing and automatic anti-explosion. According to the present invention, the porous foam material is located in a bottom groove of an arched pipeline when no gas explosion occurs in the gas drainage pipeline, without affecting the extraction effect of the gas drainage pipeline.

Abstract: Disclosed is a method for rock burst prevention by active support reinforcement and active pressure relief. The method comprises the following steps: A. rating a burst tendency based on a comprehensive index method: determining a zone as a general risk region or a mediate risk region by using a comprehensive index method; B. predicting a burst risk region and determining pressure relief borehole parameters in real time by using a drill cuttings method: determining borehole parameters of the general risk region and the mediate risk region; C. drilling holes after determining arrangement patterns of large-diameter pressure relief boreholes according to different burst risk levels; D. forming a “coal wall-bolt-grouting hole sealing” support reinforcement system through a roadway support system; and E. monitoring a pressure relief effect of the support reinforcement system: until a required effect of preventing bursts by pressure relief is achieved while the support is reinforced.

Abstract: An organic light-emitting display panel includes an array substrate including a plurality of driving elements; a plurality of organic light-emitting components corresponding to the plurality of driving elements; and a plurality of fingerprint identification units, where each organic light-emitting component includes an anode and a cathode, and light emitted by the organic light-emitting component emits away from the array substrate, a pixel defining layer is disposed between adjacent organic lighting emitting components, a fingerprint identification unit is disposed at a non-display area between organic light-emitting components and on a side of the pixel defining layer away from the array substrate, and a periphery of the fingerprint identification unit is provided with a light-shielding layer, and the light-shielding layer blocks the fingerprint identification unit from illumination by the light emitted by the organic light-emitting component.

Abstract: An organic light-emitting display panel includes an array substrate, a plurality of driving elements in the array substrate, and an organic light-emitting component corresponding to the driving elements, where the organic light-emitting component includes an anode, a cathode, and an organic functional layer between the anode and the cathode, the organic functional layer includes a light-emitting layer and a first electron transport layer between the light-emitting layer and the cathode, the organic light-emitting device includes a first organic light-emitting part containing a first color light-emitting layer, a second organic light-emitting part containing a second color light-emitting layer, and a third organic light-emitting part containing a third color light-emitting layer, a second electron transport layer is disposed between the first color light-emitting layer and the cathode, and a first and a second hole transport layers are disposed between the anode and the second and the third color light-emittin

Abstract: Embodiments of the present invention provide a digital-to-analog conversion circuit, where the digital-to-analog conversion circuit includes a signal amplitude detector and a digital-to-analog converter. When the signal amplitude detector detects a low signal amplitude, a first current module in the digital-to-analog converter operates normally and a second current module in the digital-to-analog converter stops operating. In addition, when stopping operating, the second current module is in a state of a third bias voltage and a fourth bias voltage that are generated by a second bias circuit. When the amplitude detector detects a high signal amplitude subsequently, the second current module resumes normal operation. After operating normally, the second current module switches back to a first bias voltage and a second bias voltage that are generated by a first bias circuit. This reduces a nonlinearity problem caused before a second current module resumes normal operation.

Abstract: A system and method are provided for identifying security risks in a computer system. The system includes an event stream generator configured to collect system event data from the computer system. The system further includes a query device configured to receive query requests that specify parameters of a query. Each query request includes at least one anomaly model. The query request and the anomaly model are included in a first syntax in which a system event is expressed as {subject-operation-object}. The system further includes a detection device configured to receive at least one query request from the query device and continuously compare the system event data to the anomaly models of the query requests to detect a system event that poses a security risk. The system also includes a reporting device configured to generate an alert for system events that pose a security risk detected by the detection device.

Abstract: The present disclosure provides an organic light-emitting display panel and an organic light-emitting display device for improving the uniformity of the display effects of both sides. The organic light-emitting display panel includes an array substrate having a plurality of pixel units; a plurality of organic light-emitting diodes located in the pixel units of the array substrate. The plurality of organic light-emitting diodes includes a plurality of first organic light-emitting diodes and a plurality of second organic light-emitting diodes, wherein the first organic light-emitting diodes are organic bottom light-emitting diodes and the second organic light-emitting diodes are organic top light-emitting diodes. The area of the pixel unit where the first organic light-emitting diodes are located is larger than area of the pixel unit where the second organic light-emitting diodes are located. The organic light-emitting display panel according to the present disclosure is applied in a display device.

Abstract: Embodiments of the present invention provide a digital-to-analog conversion circuit, where the digital-to-analog conversion circuit includes a signal amplitude detector and a digital-to-analog converter. When the signal amplitude detector detects a low signal amplitude, a first current module in the digital-to-analog converter operates normally and a second current module in the digital-to-analog converter stops operating. In addition, when stopping operating, the second current module is in a state of a third bias voltage and a fourth bias voltage that are generated by a second bias circuit. When the amplitude detector detects a high signal amplitude subsequently, the second current module resumes normal operation. After operating normally, the second current module switches back to a first bias voltage and a second bias voltage that are generated by a first bias circuit. This reduces a nonlinearity problem caused before a second current module resumes normal operation.

Abstract: Various embodiments provide novel tools and techniques for position and/or motion tracking, including without limitation solutions that can be used for excavation and similar applications. In a particular aspect of some embodiments, a communication device with a camera may be provided to track the position and motion of a stick of an excavator or reference features located on a stick of an excavator. A location of a bucket of an excavator may then be calculated relative to the stick or reference features on the stick of the excavator. Thus, an operator of the excavator can use the communication device to effectively and efficiently track the location of the excavator bucket without the need for a second person to provide instructions about the location of the bucket.

Abstract: A method and system are provided for improving threat detection in a computer system by performing an inter-application dependency analysis on events of the computer system. The method includes receiving, by a processor operatively coupled to a memory, a Tracking Description Language (TDL) query including general constraints, a tracking declaration and an output specification, parsing, by the processor, the TDL query using a language parser, executing, by the processor, a tracking analysis based on the parsed TDL query, generating, by the processor, a tracking graph by cleaning a result of the tracking analysis, and outputting, by the processor and via an interface, query results based on the tracking graph.

Abstract: Systems and methods for data reduction including organizing data of an event stream into a file access table concurrently with receiving the event stream, the data including independent features and dependent features. A frequent pattern tree (FP-Tree) is built including nodes corresponding to the dependent features according to a frequency of occurrence of the dependent features relative to the independent features. Each single path in the FP-Tree is merged into a special node corresponding to segments of dependent features to produce a reduced FP-Tree. All path combinations in the reduced FP-Tree are identified. A compressible file access template (CFAT) is generated corresponding to each of the path combinations. The data of the event stream is compressed with the CFATs to reduce the dependent features to special events representing the dependent features.