79 results about "Method Code" patented technology

A method codes an output bitstream of an input video so the decoded output bitstream has a constant perceived quality. A base layer bitstream having a constant bit-rate is generated from the input video, and an input enhancement layer bitstream is generated from a difference between the input video and the base layer bitstream. Rate and distortion characteristics are extracted from the base layer bitstream and the input enhancement layer bitstream, and an output enhancement layer bitstream having a variable bit-rate is generated from the input enhancement layer bitstream according to the rate and distortion characteristics. The base layer bitstream and the output enhancement layer bitstream, in combination, form an output bitstream having a variable bit-rate and a constant distortion.

Codes to be detected can be identified at high speed. The supply of the data shift clock (DCLK1) to be given to the matched filter (82) is stopped at desired timing to hold the received signal (S10) and replica code generated at the correlation coefficient generator (83) is switched to the first, second or third replica code at desired timing to detect the correlation value of that time. Thereby, the second code, the third code and the first code are detected in order to detect the timing and the code type of the first code. Therefore, each correlation detection can be conducted at the same timing since the matched filter conducts the correlation detection at high speed holding the received signal and thus, the first code included in the received signal can be identified at higher speed than before.

The invention discloses a reinforcement protection method, sever and system for android app. The method comprises the following steps: obtaining an initial android package APK of the android app; decompiling the initial APK, extracting protected method codes from the initial APK, and filling an extraction position with nop; encrypting the extracted protected method codes according to an appointed encryption and decryption strategy to generate a reinforcement configuration file; adding the appointed encryption and decryption strategy, the reinforcement configuration file and a reinforcement protection program into the decompiled APK, and compiling to generate a reinforcement APK of the android app. According to the technical scheme provided by the invention, protected methods can be dynamically encrypted and decrypted, and complete dex mapping does not exist in a memory at any moment, so that a complete dex file is prevented from being obtained in a memory dump manner and the probability of repacking and redistribution of the android app due to reverse analysis is greatly reduced.

A method codes pictures in a bitstream, wherein the bitstream includes coded pictures to obtain data for associated TUs and data for generating a transform tree, and a partitioning of coding units (CUs) into Prediction Units (PUs), and data for obtaining prediction modes or directions associated with each PU. One or more mapping tables are defined, wherein each row of each table has an associated index and a first set of transform types to be used for applying an inverse transformation to the data in TU. The first set of transform types is selected according to an index, and then a second set of transform types is applied as the inverse transformation to the data, wherein the second set of transform types is determined according to the first set of transform types and a transform-toggle flag (ttf) to obtain a reconstructed prediction residual.

The invention relates to the field of computer safety, in particular to a method for protecting application programs in an Android system. By carrying out encryption transformation on a plurality of method instruction codes of JAVA objects to be protected, encrypted method codes are subjected to real-time decryption operation according to the calling requirement when the programs operate, so that the application programs are difficult to subject to decompilation and static analysis, and therefore, the effective protection on the JAVA programs in the Android system is implemented.

The invention provides a data processing method coded and decoded by FEC, and a relative device. The method comprises: carrying out FEC coding on a FEC code processing sub-layer for a data code block sequence which is output by a physical code sub-layer and uses m data code blocks as a group, to generate n FEC check code blocks; respecitively distributing m*t2 data code blocks and n*t2 FEC check code blocks to M virtual channels of a first virtual channel group and N virtual channels of a second virtual channel group, wherein m*t2 is less than or equal to m_max, m_max is t1 times of M, n is less than or equal to n_max, n_max is t1 times of N, and m, n, t1 and t2 are positive integers; and respectively multiplexing data distributed to the first virtual channel group and the second virtual channel group onto at most H interfaces of a fisrt physical channel group and at most K interfaces of a second physical channel group according to bit speed-changing multiplexing, wherein M is integral multiple times of H, and N is integral multiple times of K.

Disclosed is a method allowing the automatic discovery of application component dependencies by tracing application calls to dependant resources. The call tracing is embedded dynamically in an application at runtime using Common Intermediate Language (“CIL”) code instrumentation at compile time or runtime. Such a method reads an instrumentation configuration file to determine an address extraction code portion that is to be instrumented to an application method code, locates the CIL method body for the application method that is to be instrumented, instruments the application method by inserting the address extraction code portion into the appropriate .NET Application or .NET library at either compile time or at run time, extracts the address of one or more external service providers from the designated .NET library methods responsible for communication during execution of the application method that was instrumented, publishes any newly discovered dependencies to a management system in the form of the discovery event, and causes the management system to build an application dependency map based on the resource address information obtained.

A method that provides for dynamic loop transfer for a method having a first set of instructions being executed by an interpreter is provided. An execution stack includes slots for storing a value of each local variable known to each subroutine while the subroutine is active. The method comprises suspending execution at a point for which a current execution state can be captured from the execution stack; assigning the value in each slot of the execution stack to a corresponding slot of an array of values; scanning the first set of instructions to identify a data type for local variable that is not known in the current execution state and shares a slot in the execution stack with a local variable that is known; and generating a second set of instructions for the method coded to be initially executed to declare each local variable that is known in the current execution state and each local variable for which a data type was identified, assign each declared variable with the value assigned to the slot in the array that corresponds to the slot of the execution stack in which the value of the variable is stored during execution of the first set of instructions, and branch to a target point in the second set of instructions that corresponds to the point at which execution was suspended.

One embodiment of the present invention provides a method coding audio signals in a base layer and an enhancement layer comprising the steps of quantizing the audio signals in spectral lines into quantized data in a plurality of sub-bands in an order of most significant bits (MSBs) to least significant bits (LSBs), determining a plurality of scale factors corresponding to each of the sub-bands according to respective noise tolerance of each of the sub-bands, bit shifting the quantized data in the sub-bands by the respective scale factor if they exceed a threshold value, coding the quantized data in the base layer, coding the quantized data in the enhancement layer, truncating the quantized data in the enhancement layer up to respective layer size limits, de-shifting the coded data wit the respective scale factors, de-quantizing the coded data, and decoding the coded data.

Template-generated classes in program code are compiled efficiently through a process of lazy compilation resulting in improved compilation times. Lazy compilation includes the generation of objects representing a class template and a template-generated class as well as the selective compilation of class methods that are invoked in the program code. Code sharing is a further enhancement for increasing compilation speed by providing a system and method for sharing executable object code for compatible methods among different classes generated from the same class template.

The invention relates to an operation method of a configuration interface of a microcontroller, comprising the follow steps: when a high level is input into a testing port, a serial clock and a serial data are input through an I/O port, the serial data is compared with an operation method code which is internally set, a corresponding operation method can be accessed through the comparison of the effect. The invention also comprises a function testing operation method, a DC parameter testing operation method, a digit/analog conversion testing operation method, a program storage testing operation method, a parallel programming mode operation method and a serial programming mode operation method. The configuration interface operation method of the invention can be scalable, and can access a plurality of testing operation methods and working methods, the access of a chip to different testing or working operation methods becomes more easy.

The embodiment of the invention discloses a method and device for coding video data and a method and device for decoding video data for conveniently performing data coding and decoding on video data. The method coding video data of the embodiment of the invention comprises: performing algorithm coding, the algorithm coding comprising: obtaining a binary symbol of image data; if the binary symbol is a more probable symbol (MPS), updating a first coding section corresponding to the MPS on a logarithm domain; if updated coding section less than a preset range of the algorithm coding section, performing a normalization process on the first coding section on the logarithm domain; if the binary symbol is a less probable symbol (LPS), updating a second coding section corresponding to the LPS on a primitive number domain, and performing a normalization process on the second coding section on the primitive number domain.

Embodiments of the present invention provide for generation of SMI from ACPI ASL control method code to execute complex tasks including, but not limited to, transferring or searching through large amounts of data dynamically. Instead of executing certain tasks using limited ASL functionality, an SMI is generated in an ASL code execution path to enable usage of a CPU instruction set accessible to the SMM handler. In particular, an ACPI operation region is defined for an I/O address location capable of triggering an SMI. An ACPI control method accesses the SMI generation I/O address location to generate an SMI during ASL code execution when a predefined complex task is encountered, thus enabling the SMI handler code to advantageously execute the complex task.

The invention discloses a high-speed mobile ad hoc network data transmission method based on dynamic network codes. The data transmission method comprises the following steps of using link survival time and node energy as a link quality evaluation criterion to establish and choose a route, establishing a route cache table, coding data packets at source nodes according to route establishing situations, and deciding that middle nodes code and transmit received data packets or directly transmit the received data packets according to the positions of the middle nodes in current network topology. The data transmission method can choose the most stable route to transmit data through a link quality prediction mechanism, and then whether the middle nodes are coded according to the real-time positions of the middle nodes in topology of a mobile ad hoc network is decided. Compared with a method coding all middle nodes, the data transmission method guarantees reliable data transmission, reduces time delay and total energy consumption and achieves high-efficiency data transmission in a high-speed mobile ad hoc network.

This invention is a kind of ultrasonic movement test method which uses the reverse Golay code coding, uses the method that two coding module process two data path separately, when decoding the receiver signal of the receiver circuit, uses the original orthogonal Golay code module decode the first data path and superimpose it by the superimposed module; uses the reverse Golay code module decode the second data path and superimpose it by the superimposed module; at last processes the result of the first and second data path by bucking module, does a proper delay to the superimposed result of the second data path by delay module. The first data path in this invention can improve SNR and enhance the force of penetration, and at the same time remove the pseudo-image; the second data path will detect and enhance the movement display in B image, the enhanced area covered by a clean static image.