Huawei Technologies Co., Limited

Chinese Academy of Sciences

China National Petroleum Corporation

Bgp Inc., China National Petroleum Corporation

Libin Zhang

Ming Li

Jinliang Dai

Eyal Shlomot

Zhen Song

Qi Zhang

Huimin Zhang

Tingqiu Yuan

Yajuan Su

Hui Yang

Yayi Wei

Jianfang He

Le Ma

Zhe Chen

Chang Liu

Jun Zhu

Lin Wang

Rui Chen

Xiaoyu Zhang

Shaohua Luo

Lisong Dong

Hualin Wan

Yunfei Li

Qingzhong Li

Fuliang Yin

Guozheng Wang

Siwei Dong

Xiaomin Zhang

Dongfang Shen

Shu Fang

The present discloser relates to a method for active noise cancellation. An example method includes: capturing an ambient sound to determine an ambient audio signal; and determining a working status, determining at least one corresponding wanted signal based on the working status, and then removing the at least one wanted signal from the ambient audio signal, to obtain a reference signal, where the wanted signal includes content of interest. The example method further includes determining a to-be-played signal based on the reference signal.

Active noise cancellation method, device, and system

A signal processing apparatus is configured to preprocess a sound wave signal and output a processed audio signal through an electromagnetic wave. The signal processing apparatus includes: a receiving unit, configured to receive at least one sound wave signal; a conversion unit, configured to convert the at least one sound wave signal to at least one audio signal; a positioning unit, configured to determine position information related to the at least one sound wave signal; a processing unit, configured to determine a sending time point of at least one audio signal based on the position information and a first time point, where the first time point is a time point at which the receiving unit receives the at least one sound wave signal; and a sending unit, configured to send the at least one audio signal through the electromagnetic wave.

Signal processing apparatus, method, and system

A speech signal processing method and a related device thereof are provided. The method may be applied to the audio field and includes: obtaining a user speech signal captured by a sensor; obtaining a corresponding vibration signal when a user generates a speech, where the vibration signal indicates a vibration feature of a body part of the user, and the body part is a part that vibrates correspondingly based on sound-making behavior when the user is making a sound; and obtaining target speech information based on the vibration signal and the user speech signal captured by the sensor. In this application, the vibration signal is used as a basis for speech recognition.

Speech signal processing method and related device thereof

A method for manufacturing a semiconductor device. A photolithographic coating, including a first film, a photolithographic film, and a second film, is formed on the to-be-connected structure. Refractive indexes of the first film and the second film are smaller than 1. The photolithographic coating is exposed to a light having a first wavelength, to image the to-be-connected structure to a first region of the photolithographic film. The photolithographic coating is exposed to a light having a second wavelength through a mask, to image the mask to a second region of the photolithographic film. A region in which the first region and the second region overlap serves as a connection region corresponding to the to-be-connected structure, and thereby self-alignment between a layer of the to-be-connected structure and a layer where a contact hole is arranged is implemented.

Method for manufacturing semiconductor device

The present disclosure provides a method for optimizing mask parameters, and the method includes: acquiring a test pattern, light source parameters, and initial mask parameters, the initial mask parameters including a mask thickness and an initial mask sidewall angle; generating multiple sets of candidate mask parameters according to the initial mask sidewall angle in the initial mask parameters; the multiple sets of candidate mask parameters including different mask sidewall angles and the same mask thickness; obtaining an imaging contrast of each set of candidate mask parameters based on the test pattern and the light source parameters; and selecting an optimal mask sidewall angle from the multiple sets of candidate mask parameters according to the imaging contrasts. By generating multiple sets of candidate mask parameters including different mask sidewall angles and the same mask thickness, and simulating these sets of candidate mask parameters respectively, the imaging contrast of each set of candidate mask parameters is obtained, so that the optimal mask sidewall angle is found according to the imaging contrasts. Therefore, by optimizing the mask parameters of the multi-layer film lens structure, the imaging contrast can also be significantly improved, and the imaging resolution can be improved.

Method and device for optimizing mask parameters

A method for manufacturing a semiconductor device. A photolithographic coating, including a first film, a photolithographic film, and a second film, is formed on the to-be-connected structure. Refractive indexes of the first film and the second film are smaller than 1, so that the photolithographic coating forms an optical structure with a high reflection coefficient. The photolithographic coating is exposed to a light having a target wavelength through a mask. The to-be-connected structure is reflected in the photolithographic coating, and hence serves as another mask and is imaged to the photolithographic film. A pattern of the mask is simultaneously imaged to the photolithographic film. That is, both the to-be-connected structure and the pattern of the mask are imaged to a target region of the photolithographic film, and the target region corresponds to the to-be-connected structure.

Embodiments of the present disclosure provide a service rate adjustment method and an apparatus. The service rate adjustment method in the present disclosure includes: receiving actual transmission capability information of a base station sent by the base station; and adjusting a service rate of a transmit end according to the actual transmission capability information and the service rate of the transmit end that sends service data to the base station. According to the embodiments of the present disclosure, rate adjustment for the transmit end that sends service data to the base station can be implemented, so that the service rate of the transmit end that sends the service data to the base station matches an actual transmission capability of the base station, thereby improving data transmission quality.

Service rate adjustment method and apparatus

The present invention provides a method of searching for an oil-gas reservoir based on TRAP-3D software, including: establishing a three-dimensional lithology and fault data cube of an exploration working area according to three-dimensional seismic data and logging data; dividing the three-dimensional lithology and fault data cube into several depth slices of the same thickness, and performing an individual sand body unit division for each depth slice; sequentially inputting the depth slices of the three-dimensional lithology and fault data cube into the TRAP-3D software for oil-gas reservoir evaluation. The present invention improves the accuracy of three-dimensional trap evaluation, is conducive to precise searching of the oil-gas reservoir, can plot a Sweet-Spot diagram on a plane, and get exhibits oil-gas trap amounts of different depths in a longitudinal direction, and can obtain a total trap amount of the oil gas reservoir in the exploration working area.

Method of searching for oil-gas reservoir based on trap-3D software

A method and an apparatus for adjusting a channel delay parameter of a multi-channel signal are provided in the embodiments of the present invention. The method includes: performing down-mixing processing on a multi-channel signal to obtain a processed signal (); calculating energy distribution of the processed signal (); and judging whether a comb filtering effect occurs in the processed signal according to the energy distribution of the processed signal, and adjusting a channel delay parameter of the multi-channel signal if the comb filtering effect occurs in the processed signal ().

Method and apparatus for adjusting channel delay parameter of multi-channel signal

An encoding method includes: extracting core layer characteristic parameters and enhancement layer characteristic parameters of a background noise signal, encoding the core layer characteristic parameters and enhancement layer characteristic parameters to obtain a core layer codestream and an enhancement layer codestream. The disclosure also provides an encoding device, a decoding device and method, an encapsulating method, a reconstructing method, an encoding-decoding system and an encoding-decoding method. By describing the background noise signal with the enhancement layer characteristic parameters, the background noise signal can be processed by using more accurate encoding and decoding method, so as to improve the quality of encoding and decoding the background noise signal.

Coding/decoding method, system and apparatus

Embodiments of the present invention disclose an audio decoding method, including: determining that bitstreams to be decoded are monophony coding layer and first stereo enhancement layer bitstreams; decoding the monophony coding layer to obtain a monophony decoded frequency-domain signal; reconstructing left and right channel frequency-domain signals in a first sub-band region by utilizing the monophony decoded frequency-domain signal after an energy adjustment; and reconstructing left and right channel frequency-domain signals in a second sub-band region by utilizing the monophony decoded frequency-domain signal without the energy adjustment.

Audio decoding method and audio decoder

A method for generating background noise and a noise processing apparatus are provided in order to improve user experience. The method includes: if an obtained signal frame is a noise frame, a high band noise encoding parameter is obtained from the noise frame; weighting and/or smoothing is performed on the high band noise encoding parameter to obtain a second high band noise encoding parameter; and a high band background noise signal is generated according to the second high band noise encoding parameter. A noise processing apparatus is also provided.

Method for generating background noise and noise processing apparatus

A method for decoding an audio signal includes: obtaining a lower-band signal component of an audio signal corresponding to a received code stream when the audio signal switches from a first bandwidth to a second bandwidth which is narrower than the first bandwidth; extending the lower-band signal component to obtain higher-band information; performing a time-varying fadeout process on the higher-band information to obtain a processed higher-band signal component; and synthesizing the processed higher-band signal component and the obtained lower-band signal component. With the methods provided in the embodiments of the invention, when an audio signal has a switch from broadband to narrowband, a series of processes such as bandwidth detection, artificial band extension, time-varying fadeout process, and bandwidth synthesis, may be performed to make the switch to have a smooth transition from a broadband signal to a narrowband signal so that a comfortable listening experience may be achieved.

Method and apparatus for audio decoding

An encoding method includes extracting background noise characteristic parameters within a hangover period, for a first superframe after the hangover period, performing background noise encoding based on the extracted background noise characteristic parameters, for superframes after the first superframe, performing background noise characteristic parameter extraction and DTX decision for each frame in the superframes after the first superframe, and for the superframes after the first superframe, performing background noise encoding based on extracted background noise characteristic parameters of the current superframe, background noise characteristic parameters of a plurality of superframes previous to the current superframe, and a final DTX decision. Also, a decoding method and apparatus and an encoding apparatus are disclosed. Bandwidth occupancy may be reduced substantially while the signal quality may be guaranteed.

Method and apparatus for encoding and decoding

A method and apparatus for generating an excitation signal for background noise are provided. The method includes: generating a quasi excitation signal by utilizing coding parameters in a speech coding/decoding stage and a transition length of an excitation signal; and obtaining the excitation signal for background noise in a transition stage by generating a weighted sum of the quasi excitation signal and a random excitation signal of a background noise frame. Moreover, the apparatus includes: a quasi excitation signal generation unit and a transition stage excitation signal acquisition unit. Through the synthesizing scheme of comfortable background noise according to the present invention, the transition of a synthesized signal from speech to background noise could be more natural, smooth and continuous, which makes the listeners feel more comfortable.

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Shenzhen, China

Libin Zhang