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59results about How to "Reliable decoding" patented technology

Generalized polar code based on polarization of linear block codes and convolutional codes

Aspects of the disclosure relate to a channel coding and decoding algorithm that provides for generalized polar codes, including the concatenation of a plurality of component codes via one-step polarization. In a further aspect, selection of suitable component codes in this scheme can result in a generalized polar code having a cyclic shift property, such that information can be implicitly communicated according to the magnitude of the cyclic shift. In yet another aspect, a decoding algorithm provides for reliable decoding of such generalized polar codes, including exploitation of time diversity in sequential transmissions. Other aspects, embodiments, and features are also claimed and described.
Owner:QUALCOMM INC

Definition of wakeup bus messages for partial networking

A method of encoding a digital bus message information, in particular a wake-up bus message information or configuring data, on a bus system, the method comprising: encoding a predetermined part of digital bus message information bits by means of sub-patterns in a stream of line symbols on at least one bus line, wherein sub-patterns consist of successive dominant and recessive phases, comprised of recessive and dominant line symbols, wherein a recessive phase is comprised of at least two recessive line symbols in order to establish a ratio of successive dominant and recessive phases that corresponds to a value of the predetermined part. A respective digital bus message, particularly for use on a bus system, is to be encoded in accordance with the method.
Further, a bus node for a system bus having a plurality of stations that are coupled together by means of an arrangement of bus lines, comprises decoding circuitry configured for an analysis of sub-patterns in a stream of data on at least one bus line, and analysing circuitry configured to detect encoded digital bus message information, in particular a wake-up bus message information or configuring data, transmitted in a stream of line symbols on the bus system, wherein the digital bus message information is encoded in accordance with the method.
Owner:NXP BV

Method for three-dimensional measurement of high sampling density color structured light based on green stripe segmentation

The invention relates to a method for the three-dimensional measurement of high sampling density color structured light based on green stripe segmentation. In previous researches, color encoding is mostly used for space encoding and direct encoding, and most of the color encoding can be used for measuring dynamic objects, but because of the influences caused by the color fidelity and the resolution ratio of a CCD camera, the color encoding has low measurement accuracy for three-dimensional objects and is very difficult to be used for accurate measurement of objects. The method comprises the following steps of: 1) continuously projecting red and blue gray code encoded structured light segmented based on green stripes to the three-dimensional objects required to be measured or reconstructed in turn, and shooting each breadth of projection patterns; 2) performing red, green and blue color stripe segmentation on each breadth of the shot projection patterns to acquire the color values of pixels of each breadth of the patterns; 3) extracting centers and left and right boundaries of the green stripes in each breadth of the shot patterns, and acquiring the coding values of the centers and the left and right boundaries of the green stripes according to the corresponding color values of the pixels of the previous breadths of the patterns; and 4) performing sub-pixel positioning on the centers and the left and right boundaries of the green stripes, and realizing the measurement and the reconstruction of the three-dimensional objects according to system calibration parameters. The method is applied to a three-dimensional measuring technique.
Owner:HARBIN UNIV OF SCI & TECH

Method for transmitting and storing downlink data, base station and terminal

The invention relates to the technical field of communication, and discloses a method for transmitting and storing downlink data, a base station and a terminal. In the scheme, when the base station transmits the downlink data at each time, a bit selection manner adopted by the base station enables that the length and the start point of a sequence expected to receive in initial transmission (or repeat transmission) of the same code block by a terminal in any type are same to the length and the start point of a sequence to be sent by the same code block determined by a sending end, such that the terminal decodes reliably; if decoding is failed, the start point of the sequence in the initial transmission (or repeat transmission) of the same code block stored by the terminal at each time is the same to the start point of the sequence to be sent in the initial transmission (or repeat transmission) of the same code block determined by the sending end; the disadvantage that decoding cannot be carried out accurately due to the fact that storage cannot be carried out accurately when the terminal stores a retransmission code block of the same code block at each time can be avoided; and thus, the decoding accuracy of the terminal is increased.
Owner:HUAWEI TECH CO LTD

Decoding method for automatically repairing and identifying code pattern symbols of two-dimensional codes and apparatus

The invention provides a decoding method for automatically repairing and identifying code pattern symbols of two-dimensional codes. The decoding method includes the following steps that: 1) code pattern symbol images of a two-dimensional code are obtained, and binaryzation is performed on the obtained code pattern symbol images; 2) boundary detection is performed on round unit modules in the code pattern symbol images so as to obtain boundary images; 3) closed boundary tracking is performed on the boundary images; 4) after the closed boundary tracking, identification is performed on the round unit modules, and non circular closed boundaries are discarded; 5) round unit modules in different code pattern symbol images are distinguished and rejected; 6) direction positioning is performed and specifically includes the following steps that: the minimum bounding rectangles of the round unit modules can be obtained through calculation according to the closed boundary coordinates of the round unit modules; a horizontal line and a vertical line which pass through the center coordinates of each minimum bounding rectangle are drawn; and the point of intersection of the horizontal line and the vertical line is adopted as the original point of an image, and each round unit module is divided into an upper left region, an upper right region, a lower left region and a lower right region, and a point in each region, which is farthest to the center of the corresponding minimum bounding rectangle is a positioning round unit module in the corresponding region; and 7) codeword reduction and error correction are performed.
Owner:HENAN SHENGTANG INFORMATION TECH

Method for accessing computer to network safely and quickly

The invention discloses a method for accessing a computer to a network safely and quickly. In the method, the computer is connected with a QR (quick response) code reading device, and a special memory and a first memory are additionally arranged in a family gateway device; and the method comprises the following steps of: carrying out cross compilation on a QR source code by a Linux system platform to generate a QR code executable program which can run on a family gateway, and storing the executable program into a special memory of the family gateway device; operating the QR executable program, inputting the family gateway information required for networking, and carrying out QR codingon the QR executable program to generate a QR code of a PNG (portable network graphic) picture format; displaying the QR code of the PNG picture format or printing the QR code out and then sticking the QR code on the shell of the family gateway device; reading the QR code of the PNG picture format on the shell of the family gateway by the computer with the help of a QR code reading device so as to complete the networking process. Therefore, the QR code is used for storing the family gateway information required for networking, and users can read the two-dimensional codes safely and conveniently to realize fast networking.
Owner:SHENZHEN GONGJIN ELECTRONICS CO LTD

Method and device for synchronization of a decoder of a RFID receiver

A method for synchronizing a RFID receiver, comprising receiving an input signal from a RFID tag, said input signal comprising a preamble section, creating a first reference waveform, comprising at least a fraction of said preamble section, calculating a first correlation value by correlating said input signal and said first reference waveform, creating a second reference signal so that there is virtually zero correlation between said first reference waveform and said second reference waveform, and using said first correlation value and said second correlation value for adjusting synchronization timebase, wherein the sign and the size of said second correlation value indicates the size and the sign of phase inaccuracy of the synchronization timebase.
Owner:TALLINN UNIVERSITY OF TECHNOLOGY +1

Pattern detection for partial networking

A pattern detector for a bus node for a system bus having a plurality of stations that are coupled together by means of an arrangement of bus lines, the bus node comprising: decoding circuitry configured for an analysis of sub-patterns in a stream of data on at least one bus line, and analysing circuitry configured to determine a series of digital relative length information of said sub-patterns, wherein said relative length information is generated by comparison of an actual sub-pattern with a preceding sub-pattern in the stream of data on said at least one bus line. A corresponding method of encoding digital bus message information on a bus system in which the digital bus message comprises at least one part that is by means of sub-patterns to be transmitted in a stream of data on at least one bus line, wherein the method comprises: encoding a series of digital relative information by means of the sub-patterns in the stream of data, wherein said relative information is generated by adapting each sub-pattern carrying one bit of the bus message information with respect to an preceding sub-pattern. A corresponding digital bus messages may be encoded in accordance with the method, which bus messages are of particular use in a bus system, in which communication takes place on arbitrarily manner.
Owner:NXP BV

Image processing apparatus and data encryption communication system

An image processing apparatus according to an embodiment of the present invention transmits to a mail server a notification email inquiring to a client apparatus of an address whether encrypted data is to be received, and if a reply email is received from the mail server in response to the notification email, wherein the reply email is sent from the client apparatus of the address and indicates to receive the encrypted data, and a password is assigned to the received reply email, the image processing apparatus encrypts data using the password, attaches the encrypted data to an email to be sent to the address, and transmits the email to the mail server.
Owner:SHARP KK

Wireless communication system, communication apparatus, communication method, and communication program

Provided are a wireless communication system, communication apparatus, communication method, and communication program able to more reliably decode transmit signals at a receiver without more complex processing, even when resource blocks are overloaded.A communication apparatus configured to decode data received on each of at least two streams comprises: a resource block allocation determiner configured to determine an allocation of resource blocks for each stream; and a control information determiner configured to determine control information regarding data transmission on at least one stream, on the basis of the overload ratio of resource blocks among at least one group of streams.
Owner:SHARP KK

Multi-channel transponder message transmission device and multi-channel transponder message transmission method

The invention discloses a multi-channel transponder message transmission device and a multi-channel transponder message transmission method, which realize ground transponder energy emission, ground transponder message information wireless receiving, safe decoding and reliable transmission. When a certain part of the equipment breaks down, the equipment is automatically guided to the safety side, the equipment transmits the information to the vehicle-mounted control equipment at the rear end in real time through other normal channels, and meanwhile real-time detection, fault protection and recording can be conducted on equipment state information. The equipment comprises a vehicle-mounted host and a vehicle-mounted antenna, wherein the vehicle-mounted host comprises a dual-channel power amplifier module, a multi-channel receiving module, a multi-channel processing module, a recording board, a power board and a bus board. The device and method have the advantages that the equipment adopts a multi-channel, modular and multi-layer protection design, and avehicle-mounted host processing module adopts a two-out-of-two and double-path backup design, so that the safety, reliability, availability and maintainability of the equipment and the real-time performance, accuracy and stability of information transmission are improved.
Owner:HENAN LANXIN TECH
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