Huawei Technologies Co., Limited

Zte Corporation

Byd Company Limited

Shenzhen Byd Auto R&d Company Limited

Shenzhen Salubris Pharmaceuticals Co. Ltd.

Shenzhen Maigesong Electrical Technology Co. Ltd

Shenzhen Maigesong Electrical Co., Ltd.

Song Li

Jun Xu

Jin Xu

Yang Wang

Zhifeng Yuan

Liujun Hu

Yuanli Fang

Liyun Pang

Roman Schlieper

Fons Adriaensen

Xiangbiao Yan

Guangyuan Shi

Liding Fu

Jie Gandalf Yan

Xinxin Zhang

Xikun Zhang

Yawen Zhang

Fei Luo

Xuekun Li

Wenjie Xu

Yinmei Zhou

Qiao Wu

Yanxin Zheng

Jianqiong Zhi

The disclosure relates to a method for processing a stereo signal. The method can include obtaining a center channel signal by up-mixing the stereo signal. The method can also include generating a filtered center channel signal by applying one or more peak filters and one or more notch filters to the center channel signal. Furthermore, the method can include generating a binaural signal based on the filtered center channel signal.

Method and apparatus for processing a stereo signal

The invention relates to the technical fields of binaural audio rendering and, to this end, estimation of room acoustic parameters like reverberation time. In particular, the invention provides a device and method for estimating such acoustic parameters. The device is configured to record an acoustic signal, particularly a speech signal, to estimate a frequency-dependent reverberation time in a lower frequency range based on the recorded acoustic signal, and to extend the frequency-dependent reverberation time to a higher frequency range based on a predetermined model to obtain an extended frequency-dependent reverberation time. Virtual 3D audio can thus be adapted to a real room.

Device and method for adaptation of virtual 3D audio to a real room

A beam scanning apparatus with arrayed rotating mirrors is provided. The beam scanning apparatus includes a motor, a worm, a wormgear, a mounting rack, and a rotating mirror, where the worm and the wormgear are located on the mounting rack, and engage with each other by using a gear for a linkage connection; the rotating mirror is located in the mounting rack, and is coaxially connected to the wormgear; and the motor is configured to drive the worm to rotate, to drive the wormgear and the rotating mirror to rotate coaxially. The rotating mirror may be replaced with another rotating mirror with a different structure and a different optical parameter, to adjust output performance of the beam scanning apparatus, thereby improving extensibility.

Beam scanning apparatus with arrayed rotating mirrors

A multi-line laser radar includes a first radar component, where the first radar component includes n lasers, an optical collimating unit, a scanning rotating mirror, and a detector, where n is greater than 1. Each laser is configured to emit one laser beam to the optical collimating unit. The optical collimating unit is configured to collimate n laser beams, where the collimated n laser beams are incident on a target reflector of the scanning rotating mirror. The scanning rotating mirror includes m reflectors rotating around a rotation axis, where a rotation plane of the rotation axis is perpendicular to an arrangement direction of the collimated n laser beams, and m is greater than 1. The target reflector reflects the received collimated n laser beams to a detection area of the first radar component. The detector receives echo signals of the reflected n laser beams in the detection area.

Multi-line laser radar

A method for processing an audio signal, the method including: processing the audio signal according to a pair of mouth to ear transfer functions to obtain a processed audio signal; filtering the processed audio signal, using a pair of equalization filters, to obtain a filtered audio signal, where a parameter of the equalization filter is depends on an acoustic impedance of a headphone; and outputting the filtered audio signal to the headphone. Accordingly, this method counteracts the occlusion effect and to provides a natural perceived sound pressure.

Method and apparatus for processing an audio signal based on equalization filter

Provided are a supramolecular composite comprising an angiotensin II receptor (AT1) blocking compound, a neutral endopeptidase inhibitor (NEPi), and a pharmaceutically acceptable cation. The invention further provides a method for preparing the composite and an application of the composite for preparing a pharmaceutical product for treating heart failure.

Angiotensin II receptor antagonist metabolite and NEP inhibitor composite and preparation method thereof

A universal rechargeable battery constituted by employing a lithium-ion battery and a control method for the rechargeable battery are provided. The rechargeable battery includes: an outer packaging housing and, sequentially laminated and assembled within the outer packaging housing, a charging/discharging controller, a positive electrode crimping piece, a lithium-ion battery, and a negative electrode end cap. The charging/discharging controller includes: a charging/discharging controller housing and, arranged within the charging/discharging controller housing, a charging/discharging control circuit solder body, an insulating washer, and a charging/discharging controller support frame. The charging/discharging control circuit solder body is soldered to a lithium battery charging/discharging control circuit. The lithium-ion battery charging/discharging control circuit includes: a lithium-ion battery charging control circuit, a lithium-ion battery detection circuit, and a DC-DC step-down regulator discharging circuit that are soldered onto a circuit substrate and electrically connected respectively to the lithium-ion battery, to a positive electrode end cap, and to the negative electrode end cap via the charging/discharging controller housing and the outer packaging housing.

Universal rechargeable battery constituted by employing lithium-ion battery and control method

One aspect of the present invention provides a method for improving power amplification efficiency of a Doherty power amplifier. The method is applied to a Doherty power amplifier that has two paths of Doherty circuit units connected in parallel. The method includes: when output power of the Doherty power amplifier is within a low out power range, adjusting, by a bias circuit, gate voltages of main power amplifiers and peak power amplifiers in the two paths of Doherty circuit units connected in parallel, in order to cause the peak power amplifiers to be in an off state, and the main power amplifiers in the two paths of Doherty circuit units connected in parallel to be in a main power amplification state and a peak power amplification state respectively.

Doherty power amplifier, and method and device for improving power amplification efficiency of Doherty power amplifier

A hybrid power driving system is provided, comprising an engine; a first motor; a first reducing mechanism, a second clutch, a first wheels group, a second motor, a second wheels group, a second reducing mechanism, an energy storage device, a clutch, an engine controller, and a motor controller. The motor controller may be configured to: start or stop at least one of the first motor or the second motor; and control the clutch controller and the engine controller according to a running mode of the hybrid power driving system. A driving method for the driving system as described hereinabove is also provided.

Hybrid power driving system and driving method of the same

An encoding method, encoding device, decoding method and decoding device for low density generator matrix codes (LDGC) are disclosed. Wherein, the encoding method comprises: construct an LDGC mother code set using P LDGC with code rate Rand different code lengths, wherein the LDGC mother code set has a uniform basic matrix Gwherein, kdenotes the number of rows and ndenotes the number of columns in the basic matrix; obtain length L of an intermediate variant according to length K of an information bit sequence to be encoded in the LDGC mother code set; modify and expand the basic matrix to obtain a generator matrix Gusing the length L of the intermediate variant and the number kof rows in the basic matrix; and encode the information bit sequence to be encoded using a matrix G(1:L,1:N+L&#x2212;K) composed of L rows and the front N+L&#x2212;K columns of the generator matrix, wherein N denotes the length of the encoded information.

Encoding method, encoding device, decoding method and decoding device for low density generator matrix codes

The present invention discloses a data transmission method and apparatus. The method comprises: segmenting data to be transmitted into information file segments with a length of Tb bits; performing forward error correction (FEC) coding for Tb information bit sequences composed of bits in same positions in a plurality of continuous information file segments to generate Tb check bit sequences, putting each bit of the check bit sequences in the same position in the check file segments as the corresponding information bit sequences; and transmitting each of the information file segments and check file segments according to their order; the number of bits contained in the information bit sequences being less than or equal to the maximum length of Kbits of the FEC-coded information bit sequences.

Data transmission method and equipment

The present invention discloses a coding method, a coding device, a decoding method and a decoding device for low density generator matrix codes. Wherein the coding method includes: constructing the mother code set of the low density generator matrix code using P low density generator matrix codes of different code lengths at a code rate R, wherein the mother code set of the low density generator matrix code has a uniform basic matrix G, where kis the row number of the basic matrix and nis the column number of the basic matrix; obtaining the length L of an intermediate variable according to the relationship between the length K of the information bit sequence to be coded in the mother code set of the low density generator matrix code and the length L of the intermediate variable; obtaining an expansion factor zfor processing the basic matrix using the length L of the intermediate variable and the row number kof the basic matrix, and obtaining a generator matrix Gby modifying and expanding the basic matrix using the expansion factor z; and coding the information bit sequence to be coded using a matrix G(1:L,1:N+L&#x2212;K) comprised of L rows and the first N+L&#x2212;K columns of the generator matrix.

Coding method, coding device, decoding method and decoding device for low density generator matrix code

The present invention provides a device and method for interleaved encoding RS code, the RS code used being RS (N, K, S). The method comprises: firstly, writing the data in the data packets to be RS interleaved encoded into the information region of the RS code byte interleaver column-by-column in turn; then, constructing the data of each row of the check region based on the data written into the information region; finally, performing cyclic shifting processing on the data of the check region, and reading out the data of the check region in the RS code byte interleaver column-by-column in turn. The present invention can be used to improve the performance of the entire data packet outputted, thereby enhancing the reliability of the data link layer, by evenly spreading the areas with a filled value of 0 in the last column of the information region that is filled with valid information and by performing cyclic shifting processing on the data of the check region so that the data of that region offer larger time span and good diversity effect when outputted.

Device and method for interleaved encoding RS code

The present invention discloses an encoding method and device for Low Density Generator Matrix Codes (LDGC). Wherein, the method comprises: construct an LDGC mother code set using a plurality of LDGC with code rate Rand different code lengths, wherein the LDGC mother code set has a uniform base matrix G={(g)}; obtain length L of an intermediate variable according to a relationship between length K of an information bit sequence to be encoded in the LDGC mother code set and length L of the intermediate variable; obtain an expanding factor z for processing the base matrix using the length of the intermediate variable and the number of rows in the base matrix; process the base matrix using the expanding factor to obtain a binary generator matrix Gtmp, the front L rows and front L columns of which compose a triangular matrix; modify the binary generator matrix to obtain a modified binary generator matrix; take a matrix Gcomposed of L rows and the front N+L&#x2212;K columns of the modified binary generator matrix as a generator matrix of the information bit sequence to encode the information bit sequence.

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Shenzhen, China

Song Li