Abstract: A low-density parity-check code scaling method is disclosed. The method includes following steps: obtaining the original low-density parity-check matrix; forming the permutation matrices with the random row shift or the random column shift to the identity matrix; replacing the component codes by the permutation matrices and the all-zero matrix to form the extended low-density parity-check matrix; adjusting the code length and the code rate to form the global coupled low-density parity-check matrix; and outputting the global coupled low-density parity-check code.

Abstract: A continuous time delta sigma modulator is described in this application. In one example, the continuous time delta sigma modulator includes: a quantizer, a buffer module, a randomizer, and a reference module. The quantizer includes a comparator that generates a digital output based on a comparison of a reference potential with an input generated based on a sample of an analog signal. The buffer module stores the digital output for a predetermined delay period and outputs the digital output after the predetermined delay period as a delayed digital output. The randomizer randomizes the delayed digital output to generate a randomized digital output. The reference module modifies the reference potential based on the randomized digital output.

Abstract: A low-density parity-check code scaling method is disclosed. The method includes following steps: obtaining the original low-density parity-check matrix; forming the permutation matrices with the random row shift or the random column shift to the identity matrix; replacing the component codes by the permutation matrices and the all-zero matrix to form the extended low-density parity-check matrix; adjusting the code length and the code rate to form the global coupled low-density parity-check matrix; and outputting the global coupled low-density parity-check code.

Abstract: A method for generating encoded data includes: generating at least one local LDPC matrix and a global LDPC matrix, the global LDPC matrix relating to each of the at least one local LDPC matrix; repeatedly selecting one of the at least one local LDPC matrix as a target local LDPC matrix until a number t of the target local LDPC matrices are selected, where t is a user-defined number that is greater than one; generating a block matrix that includes the target local LDPC matrices; generating a primary LDPC matrix that includes a first primary matrix part relating to the block matrix, and a second primary matrix part relating to the global LDPC matrix; and encoding data based on the primary LDPC matrix.

Abstract: A method for generating encoded data includes: generating at least one local LDPC matrix and a global LDPC matrix, the global LDPC matrix relating to each of the at least one local LDPC matrix; repeatedly selecting one of the at least one local LDPC matrix as a target local LDPC matrix until a number t of the target local LDPC matrices are selected, where t is a user-defined number that is greater than one; generating a block matrix that includes the target local LDPC matrices; generating a primary LDPC matrix that includes a first primary matrix part relating to the block matrix, and a second primary matrix part relating to the global LDPC matrix; and encoding data based on the primary LDPC matrix.

Abstract: A method for generating encoded data includes: generating at least one local LDPC matrix and a global LDPC matrix, the global LDPC matrix relating to each of the at least one local LDPC matrix; repeatedly selecting one of the at least one local LDPC matrix as a target local LDPC matrix until a number t of the target local LDPC matrices are selected, where t is a user-defined number that is greater than one; generating a block matrix that includes the target local LDPC matrices; generating a primary LDPC matrix that includes a first primary matrix part relating to the block matrix, and a second primary matrix part relating to the global LDPC matrix; and encoding data based on the primary LDPC matrix.

Abstract: A non-toxic water soluble photosensitive resin composition able to function as a solder mask coating comprises a polymer containing oxazolinyl, a photosensitive monomer, and a photo-initiator. These elements are all water soluble or water dispersible. The polymer containing oxazolinyl and the photosensitive monomer have a plurality of carbon-carbon double bonds. The polymer containing oxazolinyl and the photosensitive monomer are polymerized to form a dense cross-linking network structure when the water soluble photosensitive resin composition is exposed to ultraviolet radiation. A film using the water soluble photosensitive resin composition is also provided.

Abstract: A non-reactive photosensitive resin composition storable at room temperature comprises a carboxylic acid-modified bisphenol epoxy (meth)acrylate, a photosensitive monomer, a photosensitive prepolymer, a photo-initiator, and a coloring agent. Each of the carboxylic acid-modified bisphenol epoxy (meth)acrylate, photosensitive monomer, and photosensitive prepolymer has a plurality of carbon-carbon double bonds, so that the carboxylic acid-modified bisphenol epoxy (meth)acrylate, photosensitive monomer and photosensitive prepolymer may be polymerized to form a dense cross-linking network structure when the photosensitive resin composition is exposed to ultraviolet radiation. A film and a printed circuit board using the photosensitive resin composition are also provided.

Abstract: A method of building a decoding status prediction system is provided. Firstly, plural read records are collected during read cycles of a flash memory. Then, the plural read records are classified into read records with a first read result and read records with a second read result. Then, a first portion of the read records with the first read result are divided into K0 groups according to a clustering algorithm, and a second portion of the read records with the second read result are divided into K1 groups according to the clustering algorithm. Then, the read records of the K0 groups and the K1 groups are used to train prediction models. Consequently, K0×K1 prediction models are generated. Then, the prediction models are combined as a prediction database.

Abstract: A continuous time delta sigma modulator is disclosed. In one example, the continuous time delta sigma modulator includes: a quantizer, a buffer module, a randomizer, and a reference module. The quantizer includes a comparator that generates a digital output based on a comparison of a reference potential with an input generated based on a sample of an analog signal. The buffer module stores the digital output for a predetermined delay period and outputs the digital output after the predetermined delay period as a delayed digital output. The randomizer randomizes the delayed digital output to generate a randomized digital output. The reference module modifies the reference potential based on the randomized digital output.

Abstract: A method and a system for data transmission are provided. The method includes: determining a size of a first block and a first degree distribution for a first data transmission according to a parameter which is related to a hardware specification of a receiving node; determining a channel loss rate of a channel between a sending note and the receiving node when completing the first data transmission; determining a size of a second block and a second degree distribution for a second data transmission according to the channel loss rate; and performing, by the sending node and the receiving node, the second data transmission according to the size of the second block and the second degree distribution.

Abstract: A photosensitive resin composition which is non-reactive and thus storable at a normal temperatures includes 100 parts (by weight) of an epoxy acrylate, 10-50 parts acrylate monomers, 1-40 parts acrylate oligomers, 5-15 parts of a photoinitiator, 1-5 parts of a coloring agent, and 10-50 parts of a blocked polyisocyanate. A method of making and a printed circuit board made accordingly are also disclosed.

Abstract: A non-toxic water soluble photosensitive resin composition able to function as a solder mask coating comprises a polymer containing oxazolinyl, a photosensitive monomer, and a photo-initiator. These elements are all water soluble or water dispersible. The polymer containing oxazolinyl and the photosensitive monomer have a plurality of carbon-carbon double bonds. The polymer containing oxazolinyl and the photosensitive monomer are polymerized to form a dense cross-linking network structure when the water soluble photosensitive resin composition is exposed to ultraviolet radiation. A film using the water soluble photosensitive resin composition is also provided.

Abstract: A method and a system for data transmission are provided. The method includes: determining a size of a first block and a first degree distribution for a first data transmission according to a parameter which is related to a hardware specification of a receiving node; determining a channel loss rate of a channel between a sending note and the receiving node when completing the first data transmission; determining a size of a second block and a second degree distribution for a second data transmission according to the channel loss rate; and performing, by the sending node and the receiving node, the second data transmission according to the size of the second block and the second degree distribution.

Abstract: A structure is presented as a laminar structure having a first electrode, light-emitting diode epitaxial layer, silver reflecting layer, current barrier layer, metallic buffer layer, bonding layer, substrate and second electrode in turn, the silver reflecting layer covering the light-emitting diode epitaxial layer and having a bare region distributed as a pattern, the bare region being filled with a high temperature enduring reflecting material, the current barrier layer being patterned to be distributed over the silver reflecting layer in correspondence with the bare region, the metallic buffer layer separating the current barrier layer while covering the silver reflecting layer, whereby high temperature generated by the current barrier layer is sustained by the reflecting material to prevent the silver reflecting layer from cracking when being contacted with the high temperature of the current barrier layer and then ensure luminous efficiency of the light-emitting diode.

Abstract: A non-reactive photosensitive resin composition storable at room temperature comprises a carboxylic acid-modified bisphenol epoxy (meth)acrylate, a photosensitive monomer, a photosensitive prepolymer, a photo-initiator, and a coloring agent. Each of the carboxylic acid-modified bisphenol epoxy (meth)acrylate, photosensitive monomer, and photosensitive prepolymer has a plurality of carbon-carbon double bonds, so that the carboxylic acid-modified bisphenol epoxy (meth)acrylate, photosensitive monomer and photosensitive prepolymer may be polymerized to form a dense cross-linking network structure when the photosensitive resin composition is exposed to ultraviolet radiation. A film and a printed circuit board using the photosensitive resin composition are also provided.

Abstract: A resin composition suitable as an adhesive layer and as a circuit board substrate includes an acrylic resin, a non-photosensitive resin with carboxyl groups, nano core-shell particles, a photoinitiator, and a solvent, such adhesive layer and circuit board substrate being high-strength and temperature-resistant whilst retaining flexibility. The acrylic resin is in an amount by weight of 150 parts in the resin composition, the non-photosensitive resin is in an amount by weight of 30 parts to 80 parts in the resin composition, the nano core-shell particles are in an amount by weight of 5 parts to 30 parts in the resin composition, and the photoinitiator is in an amount by weight of 1 part to 10 parts in the resin composition.

Abstract: A system, an audio output device, and a method for automatically adjusting a firing direction of an upward firing speaker are disclosed. The system includes the audio output device and an audio receiver. The audio output device includes the upward firing speaker. During testing, the device controls the speaker to output a test audio signal at each of multiple testing angles of elevation. The audio receiver within a receiving area receives the test audio signal and generates a received audio waveform for creating reception information. The audio output device selects one testing angle as a preset angle of elevation according to the reception information. At playing, the audio output device is controlled by a mode selection signal and chooses a correction value from a mode lookup table to adjust the preset angle. The speaker is controlled to output an audio signal at the adjusted preset angle.

Abstract: A system, an audio output device, and a method for automatically adjusting a firing direction of an upward firing speaker are disclosed. The system includes the audio output device and an audio receiver. The audio output device includes the upward firing speaker. During testing, the device controls the speaker to output a test audio signal at each of multiple testing angles of elevation. The audio receiver within a receiving area receives the test audio signal and generates a received audio waveform for creating reception information. The audio output device selects one testing angle as a preset angle of elevation according to the reception information. At playing, the audio output device is controlled by a mode selection signal and chooses a correction value from a mode lookup table to adjust the preset angle. The speaker is controlled to output an audio signal at the adjusted preset angle.

Abstract: A connection structure applied to a fan for connecting a metal member with a shaft by means of laser. The connection structure includes a metal member and a shaft. The metal member has an opening, a first side and a second side. The opening is formed through a center of the metal member. The shaft is inserted in the opening. An outer circumference of the shaft is welded with a circumference of the opening on the first side to form at least one first welding section between the contact sections of the outer circumference of the shaft and the circumference of the opening on the first side. The first welding section is connected between the outer circumference of the shaft and the circumference of the opening on the first side to integrally connect the metal member with the shaft. The connection structure applied to the fan can lower cost.