161 results about "Triangular form" patented technology

In a data decoder for decoding data from received symbols received over a channel from an encoder, wherein the received data can include erasures and include source symbols and repair symbols and wherein the decoder uses in decoding a generator matrix, any square submatrix of which is invertible, such that the decoder can perform decoding operations concurrently with the arrival of the source symbols and repair symbols, a method of decoding comprising representing in decoder memory a system of equations derived, at least in part, from the generator matrix, substituting received source symbols into the system of equations as the source symbols are received before receiving all source symbols, identifying, using decoder logic, repair equations to be used for solving the system of equations as repair symbols arrive, calculating, using decoder logic, vector values for equations as source symbols arrive, and converting the system of equations into an upper triangular form as repair symbols arrive at the decoder. Novel methods can be used for interleaving and specifying encoding structure for a large class of FEC codes, scheduling the sending of packets and the like.

A retractor assembly for defining a working channel to a surgical site for conducting minimally invasive spinal surgery includes a plurality of relatively articulable components. Temporary interconnections are formed between adjacent sidewalls of the components to hold the components in a desired configuration, such as in a closed triangular form. The components are articulable relative to each other for adjusting the working channel or for performing surgical functions.

A method for generating a parity check matrix of a block LDPC code is disclosed. The parity check matrix includes an information part corresponding to an information word and a first parity part and a second parity part each corresponding to a parity. The method includes determining a size of the parity check matrix based on a coding rate applied when coding the information word with the block LDPC code, and a codeword length; dividing a parity check matrix with the determined size into a predetermined number of blocks; classifying the blocks into blocks corresponding to the information part, blocks corresponding to the first parity part, and blocks corresponding to the second parity part; arranging permutation matrixes in predetermined blocks from among the blocks classified as the first parity part, and arranging identity matrixes in a full lower triangular form in predetermined blocks from among the blocks classified as the second parity part; and arranging the permutation matrixes in the blocks classified as the information part such that a minimum cycle length is maximized and weight values are irregular on a factor graph of the block LDPC code.

A family of low density parity check (LDPC) codes is generated based on a mother code having a highest code rate. The low density parity check (LDPC) codes include a codeword size of at least 1344. The LDPC codes also include a plurality of parity bits in a lower triangular form. The mother code is constructed by: selecting m number of rows and n number of columns; setting maximum column weights and row weights; designing a protograph matrix based on the set column weights and row weights and selected m and n; and selecting circulant blocks based on the protograph matrix.

A gate for fence enclosures is disclosed. The gate has a frame and a mesh tensioned within the frame. Attached on one side of the frame is a plurality of hinges and the hinges are attached to a support member comprising three gate posts arranged in a roughly triangular format. Attached to the other side of the gate is a latch that mates with a receptor mounted on a second support member that also comprises three gate posts arranged in roughly a triangular format. The latch is released by pulling upwardly on a latch handle.

A pixel structure has a substrate, and a first subpixel unit, a second subpixel unit, and a third subpixel unit disposed on the substrate. The first subpixel unit has three first subpixels arranged in a delta formation, the second subpixel unit has three second subpixels arranged in a delta formation, and the third subpixel unit has three third subpixels arranged in a delta formation. One first subpixel of the first subpixel unit, one second subpixel of the second subpixel unit adjacent to the first subpixel unit, and one third subpixel of the third subpixel unit adjacent to the first subpixel unit form a display pixel unit.

A foldable bicycle that comprises a folding segment provided on the frame thereof, whereupon the bicycle can be folded in the manner that a front wheel is settled at the side of a back wheel of the bicycle. The bicycle further comprise an auxiliary wheel deposited on the frame in front of the folding segment so that when the bicycle is folded, the auxiliary wheel, the front wheel and back wheel of the bicycle can function as three supporting points that are arranged in a triangular form on a plane.

A method for recovery of lost and/or corrupted data transmitted from a transmitter device to a receiver device. The data is coded by an encoder connected to the transmitter device. The data is transmitted from the transmitter device to the receiver device via a transmission system and is decoded by means of a decoder connected to the receiver device. This is performed through application of a low density parity check method, wherein lost and/or corrupted data is restored during decoding. The decoding is performed by solving the equation system of the parity check matrix H. The parity check matrix H is brought into a triangular form by column and/or row permutations. Columns of a sub-matrix B of the matrix H which impede the triangulation process are shifted into a sub-matrix P of the matrix H so that the triangulation process can be continued until the matrix H except for the sub-matrix P has been completely brought into a triangular form. The Gaussian elimination method is applied to a part of the sub-matrix P. The selection of the column or columns of the sub-matrix B which are to be shifted into the sub-matrix P is performed on the basis of the weight of the column which corresponds to the number of non-zero-entries in the column, and/or on the basis of the weight of the rows of the sub-matrix B connected to the column.

A three-conductor cable includes three cables disposed in a triangular form in a cross sectional view thereof, and a first refrigerant path at a cable center portion surrounded by the three cables along a longitudinal direction of the three cables for flowing a refrigerant for cooling the three cables therethrough. The first refrigerant path is formed along a part of each of the three cables in a cross sectional view thereof.

A bale moving apparatus provides a generally horizontal tow frame with a linear support axle supported by a pair of opposing wheels. A tow bar provides a tow strut, a rest bar, and a winch. A bale support is pivotally joined to, and extends upwardly from the support axle assembly, and is rotatable between an upright attitude and a tilted-back attitude for securing a hay bail. A triangle formation of bale impaling spikes in mutually parallel disposition are used for impaling a hay bale at center and on two sides for securing the bail. The bale is pulling into the tilted-back attitude so as to enable resting the hay bale on the bale rest surface during travel. The rest surface is movable so as to enable placement of the hay bale's center of gravity on the vehicle.

A rug hold down corner has a planar plate connecting to a base beneath. The plate and base have triangular forms, preferably a right triangle and alternatively an isosceles right triangle. The triangular forms include two edges intersecting at a common point and a hypotenuse opposite the common point. The plate connects to the base using mechanical fasteners preferably upon the edges and alternatively upon the interior of the plate and the base. The plate may have various geometric patterns formed therein while the base generally remains solid and includes at least one felt pad, generally opposite the plate. The felt pad contacts a floor surface or other carpet beneath the rug. In a further alternate embodiment, the edges of the plate extend outwardly and downwardly so the edges extend over and down the periphery of a rug's corner.

A method and apparatus for generating parity information for error correction using a parity check matrix, rows of which correspond to a message word length m, columns of which correspond to a codeword length n, the number of "ones" included in the rows and columns is fixed, and remaining elements are all "zeros", the error correction method includes obtaining a p number of parity information using the parity check matrix and predetermined message data S, wherein a matrix including a k number of columns from a (n-m+1)-th element of the parity check matrix is created with a lower triangular matrix form, all elements within the upper triangular portion of the lower triangular form are "zeros", using a column and row permutation method.

The invention discloses a method and a system for positioning coal rock dynamic disaster through infrasonic wave monitoring. The system comprises a monitoring main station and a plurality of monitoring substations, and the monitoring substations are connected with the monitoring main station through a fiber optic network; each monitoring substation is composed of three infrasonic wave sensors arranged in a triangular form, and the infrasonic wave sensors are connected with an infrasonic wave monitor; and the monitoring main station is provided with a computing server. The positioning method isthat the main station computing server filters collected data, the time-frequency analysis is performed on the data by the short-time Fourier transform (STFT), the frequency energy density is compared, signals of the main frequency band are extracted, and the calculation result is positioned through statistical analysis and time delay estimation theory. The system monitors the infrasonic wave signal generated by the fracture of the loaded coal rock. Through this method, the non-contact and regional tests are carried out on the stress distribution state of the surrounding rock of the tunnel ormines to determine the area of coal rock fracture and stress anomaly. The method is simple in installation and operation, has little impact on production, and has a large detection range and a long detection distance.

The present invention is a stand used for supporting a reel of wound material typically wire, by means of a spindle extending through a reel that is supported at either end by spindle support members having a triangular form and with at least one angled receiving aperture made through a corner having a collar, whereby when assembled produces a horizontally disposed spindle supported by opposing inwardly angled triangular support members where said spindle ends are supported about said support members apexes.

The invention relates to a method for intercropping rhizoma bletillae and aplotaxis auriculata, belonging to the technical field of Chinese medicinal crop cultivation. The method comprises the following steps: fertilizing 30000-45000kg/hm<2> of well-rotted farmyard manure and 225-450kg/hm<2> of compound fertilizer during soil preparation; making ridges along the south-north direction; planting aplotaxis auriculata seeds and rhizoma bletillae corms between March and April every year at the same time, planting the rhizoma bletillae corms on the ridge surface with the width of 30-50cm along the east-west direction, and then planting the aplotaxis auriculata on the rest ridge surfaces, wherein the spacing in the rows of the rhizoma bletillae corms is 8-10cm*10-15cm, and the seed dosage is 500-600kg/hm<2>; bunch planting the aplotaxis auriculata in a triangular form, wherein the hill spacing is 10-20cm*20-30cm, and the seeding rate is 12-15kg/hm<2>; and topdressing for four times in the first and second years of planting. Compared with the only plantation of the aplotaxis auriculata, the invention can increase the income to ** yuan/hm<2> with the increment rate of 34%; and compared with the only plantation of the rhizoma bletillae, the invention can increase the income to ** yuan/hm<2> with the increment rate of 46%.

The invention discloses a buffer constant-tension device for online fiber unfolding. The device comprises driving rollers, swing rollers and fixed transition rollers; center shafts of three sets of the driving rollers, the swing rollers and the fixed transition rollers are arranged in parallel, and are distributed in a triangular form, wherein the swing rollers comprises swing arm mandrels fixedlyarranged, swing arms rotationally connected with the swing arm mandrels, and swing roller bodies arranged at the end parts of the swing arms; tension detecting devices are fixedly connected with theswing arm mandrels for detecting pressure suffered by the swing roller bodies; and a control center is connected with the tension detecting devices and power sources of the driving rollers. The tension sensors are adopted to monitor the tension of material to unfold fibers in real time, and the tension is transmitted to the control center; and the control center adjusts the rotating speed of the driving rollers and the traction force of a traction device in real time, so that constant tension of the materials to unfold the fibers and synchronous speed with later procedures are realized, and the conditions of wire breakage, wire winding and the like are prevented.

The invention discloses a wireless charging method. A wireless charger comprises a wireless charging emitting end and a wireless charging receiving end. The method is characterized by comprising the following steps of: (1) arranging a radiating shell at the wireless charging emitting end; (2) arranging a magnetic plate on the inner surface of the radiating shell to generate magnetic induction intensity; (3) arranging at least three induction coils, wherein the induction coils are arranged in a triangular form; (4) arranging a power adapter which is connected with the induction coils through leads and is used for supplying a working power supply to the induction coils; and (5) arranging an NTC (Negative Temperature Coefficient) control device which is connected with the coils and a charger control circuit and is used for controlling the magnitude of charging current by monitoring the temperature of a magnetic core. The invention further discloses a wireless charger for implementing the method. The method and the charger provided by the invention have the advantages of working stability, high working efficiency, high reliability, and capability of supporting high-power charging equipment.

The present invention belongs to the technical field of channel coding and relates to a method for generating an RC-LDPC code check matrix. The method is based on the complexity of the coding, and is modified based on the PEG algorithm to construct a check matrix with a lower triangular form. The obtained coding complexity is linear. On this basis, the method of expanding the check bit step by step is adopted to support the flexible and variable code rate, which provides a feasible channel coding method for the adaptation of a wireless link. At the same time, the obtained series of sub-codes also have a lower triangular form, which almost does not increase the complexity but can achieve linear coding with regard to the mother code. According to the invention, the method utilizes the PEG algorithm to optimize the position of the nonzero element in the expanded part and optimizes the code structure so as to eliminate the short loop, to reduce the computational complexity of the codec and to further improve the transmission performance.

The invention provides a UHP tire for promoting high speed and durability. The UHP tire comprises a tread and a side wall, wherein a first main channel, a second main channel, a third main channel, a fourth main channel and an external tread pattern are successively arranged on the tread from the inner side; the side wall comprises a waterproof line, a seam allowance and a side wall tail end in turn; the external tread pattern is composed of multiple sets of self-fixing patterns; the self-fixing patterns are arranged as three pattern horizontal channels sunken on the tread; each set of self-fixing patterns include a first pattern horizontal channel, a second pattern horizontal channel and a third pattern horizontal channel, wherein the first pattern horizontal channel and the second pattern horizontal channel are located on the tread on the two sides of the fourth main channel, and the third pattern horizontal channel is located on the fourth main channel and the tread on the two sides of the fourth main channel; central points of the three pattern horizontal channels of each set of self-fixing patterns are distributed in a triangular form; a first area, a second area and a third area are successively arranged on the side wall from the waterproof line to the tail end of the side wall, wherein the first area is in bias transition and has a width of b, the second area is in flat transition and has a width of c, and the third area is in bias transition and has a width of d; and the seam allowance is contained in the second area.

The present invention includes a walking cane having a handle assembly, a support assembly and foot member. The handle assembly includes first and second generally upright rigid posts. A shaft adaptable for grasping by a user's hand connects to each end of the posts. Pliable mounts dispose between the terminal ends of the shaft and each post. The mounts, biased against the shaft, permit omni-directional movement of the shaft relative to each post. The support assembly connects to the handle assembly and includes three parallel elongated rods spaced apart from one another in a triangular formation. The handle assembly can be adjusted relative to the support assembly by means of two cooperating shims. The foot member connects to the support assembly and contacts the ground. The cane provides a light-weight shaft and a shock absorbing handle assembly to assist in relieving hand, wrist and arm strains.