58results about How to "Reliable decoding" patented technology

An apparatus and method for network-based decoding of barcodes are provided. The method includes scanning, by a mobile device, a barcode; decoding, by the mobile device, data codewords encoded in the barcode; determining, by the mobile device, whether the data codewords contain errors; and when the data codewords contain errors, transmitting barcode information from the mobile device to a barcode server for decoding into the data codewords.

A wireless feeder network comprises feeder base stations coupled to the communications network and feeder terminals coupled to associated access base stations of the access network. A group of wireless network components form elements of a feeder cluster and the elements of the feeder cluster are connected by an additional communications resource configured to be operated in parallel with the wireless resource of the wireless feeder network. Both a primary and secondary element of the feeder cluster seek to decode at least one resource block allocated to the primary element for reception of data. Information derived from the secondary decoded data is transmitted from the secondary element to the primary element via the additional communications resource. The primary element then performs a revised decoding process additionally using the information received from said secondary element to improve its own decode probability.

A method for coding three-dimensional (3D) data, and more particularly for coding geometry data included in the 3D data. The method includes: generating a bounding box including a vertex of the 3D data based on information included in the geometry data; dividing the bounding box into a plurality of partitions having an equal size; identifying a number of vertices included in each divided partition; appointing a divided partition as a leaf cell based on the identified number of vertices; and coding the geometry data using information on the dividing of the bounding box, information on vertices included in each divided partition, and information indicating the position of a vertex included in the leaf cell, when a divided partition is subdivided.

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.

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.

The invention relates to a radio system and a transceiver method. The method comprises transmitting (402a) a signal of at least one type by a transceiver of the first type; receiving (404a) a signal by a transceiver of the second type with at least two differently polarized antennas; performing (406a), by the transceiver of the second type, measurements of the received signal to determine its polarization; determining (408a) the polarization of the transceiver of the first type; adjusting (410a) the signal transmitted by the transceiver of the second type in such a way that the polarization of the signal is matched with the polarization used by the transceiver of the first type; transmitting (412a) at least two orthogonally polarized, polarization-matched signals by the transceiver of the second type; receiving (414a) the polarization-matched signals by the transceiver of the first type by using at least two antennas of different polarizations.

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.

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.

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.

The invention discloses a data packing method of audio communication. The data packing method comprises the steps as follows: storing the data to be transmitted to a data field formed by data elements, appending length bits for storing length data of the data field at the front of the data field, appending CRC8 check bits for storing a check value obtained by performing CRC check on the length bits and the data field at the back of the data field to ensure the accuracy of the data in the data field; respectively appending a frame head with relative high resolution and a frame tail with relative high resolution on an analog waveform at the beginning and at the ending of the data package during packing; in addition, performing odd-even check on each byte and appending the check value at the back of the byte after packing to effectively ensure the accuracy of the data of each byte. The analog waveform of the invention has excellent resolution and reliable performance for data recognition and decoding, thereby reducing the error rate. The data packing method of audio communication of the invention improves compatibility between an audio POS and an intelligent device. The coding and decoding of the software are easy to realize and the code consumption is small.

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.

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.

The invention discloses a 3D measurement method based on green-fringe center color coded structured light. The importance development direction of the current vision 3D detection technique includes the structured light method which reflects the advantages in resolution and measuring speed. In the method, color replaces grey level for coding; the color is three basic colors, namely, red, green and blue so as to maximize the difference among the colors. Red and blue fringes in project fringes are coded in Gray code and red fringes are arranged at 0 and blue fringes are arranged at 1 while decoding. A green fringe with a wide pixel is inserted in every neighboring red and blue fringes, selecting the final digit of green pixel projection fringe among all neighboring red and blue fringes, the green fringe code value is not unique while decoding, the code value of the green fringe in pattern j only depends on the code values of the red and blue fringes in the former [1,.....j-1] and is not related to the color value of the neighboring pixel. The method has a wide application trend in industrial production and real life.

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.

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.

An equalizer and methods for equalizing a cable-borne signal are described. The cable-borne signal includes a digital signal and a baseband analog signal separated by frequency. Distortions are removed from the digital signal and an analog equalizer compensates for attenuations of the analog signal caused by the cable based on equalization settings of a digital equalizer. A baseband analog filter can be selected based on an estimate calculated by the digital equalizer of difference in attenuation at different frequencies.