Patents by Inventor Jia MENG
Jia MENG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240171908Abstract: An electronic device includes a speaker, an amplifier circuit, a level shift circuit, a switch and a processor. The speaker is configured to operate according to a driving signal. The amplifier is configured to receive an input signal provided by the processor and provide an output signal by adjusting the input signal. The level shift circuit is configured to provide an adjusted output signal by adjusting the output signal. The switch is configured to selectively transmit the output signal to the speaker for providing the driving signal according to an activation signal. The processor is configured to detect real-time characteristics of the adjusted output signal and provide the activation signal based on the real-time characteristics of the adjusted output signal.Type: ApplicationFiled: March 6, 2023Publication date: May 23, 2024Applicant: ACER INCORPORATEDInventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng
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Patent number: 11988927Abstract: Provided is an array substrate. The array substrate includes a plurality of sub-pixels; wherein a storage capacitor and an extended storage capacitor are disposed in each of the plurality of sub-pixels, the extended storage capacitor and the storage capacitor being connected in parallel; and the array substrate includes a gate electrode layer, a source and drain electrode layer, and a pixel electrode.Type: GrantFiled: March 9, 2021Date of Patent: May 21, 2024Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Zhengdong Zhang, Xiaofei Yang, Lei Su, Limiao Wang, Hongjun Wang, Jia Meng, Xiaoxu Hu
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Publication number: 20240163605Abstract: A computer system and an output adjusting method used for an audio output apparatus are provided. In the method, detecting the output power of the audio output apparatus while outputting the audio signal, counting the accumulated time of the audio output apparatus while the output power is greater than the reference power, determining whether the accumulated time meets a corresponding adjusting condition, and adjusting the current maximum output power into the target power gradually within the time range according to the determined result that the accumulated time meets the corresponding adjusting condition. The adjusting condition includes that the accumulated time is greater than or equal to the tolerated hearing time of the corresponding reference power. The target power is less than or equal to the reference power which meets the adjusting condition. The maximum output power is the upper limit of the output power of the audio output apparatus.Type: ApplicationFiled: March 21, 2023Publication date: May 16, 2024Applicant: Acer IncorporatedInventors: Po-Jen Tu, Ruey-Ching Shyu, Jia-Ren Chang, Kai-Meng Tzeng
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Patent number: 11972638Abstract: This application provides a face living body detection method performed by a computing device, the method including: obtaining a first face image of a target detection object in a first illumination condition and a second face image of the target detection object in a second illumination condition, determining a difference image according to the two images, decoupling an object reflectivity and an object normal vector corresponding to the target detection object from a feature map extracted from the difference image, and determining whether the target detection object is a living body according to the object reflectivity and the object normal vector. This method decouples texture information and depth information of a face, and performs living body detection by using decoupled information, which increases the defense capability against 3D attacks, thereby effectively defending against planar attacks and 3D attacks.Type: GrantFiled: October 28, 2021Date of Patent: April 30, 2024Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Jian Zhang, Jia Meng, Taiping Yao, Ying Tai, Shouhong Ding, Jilin Li
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Publication number: 20240118862Abstract: A computer system and a processing method thereof of sound signal are provided. The computer system includes a platform path controller (PCH), a high-definition audio (HDA) codec, and a digital microphone. The HDA codec is coupled to the PCH. The digital microphone is coupled to the PCH and the HDA codec. The digital microphone is used to generate sound signal. The HDA codec processes the sound signal from the digital microphone. Accordingly, the audio recording with high quality could be provided.Type: ApplicationFiled: November 16, 2022Publication date: April 11, 2024Applicant: Acer IncorporatedInventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng, Ming-Chun Yu
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Patent number: 11955132Abstract: An identifying method of a sound watermark and a sound watermark identifying apparatus are provided. The method includes the following. A synthesized sound signal is received through a network. Noise interference transferred through the network in the synthesized sound signal is determined according to a reflection-cancelling sound signal. A coding threshold is determined according to the noise interference. A sound watermark signal in the synthesized sound signal is identified according to the coding threshold.Type: GrantFiled: April 7, 2022Date of Patent: April 9, 2024Assignee: Acer IncorporatedInventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng
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Publication number: 20240098183Abstract: A marking method on image combined with sound signal, a terminal apparatus, and a server are provided. In the method, a first image is displayed. A selection command is detected. A target sound signal is embedded into a speech signal so as to generate a combined sound signal. The combined sound signal is transmitted. The selection command corresponds to a target region in the first image, and the selection command is generated selecting the target region through an input operation. The target sound signal corresponds to the target region of the selection command, and the speech signal is obtained by receiving sound. Accordingly, all attendants in the video conference are able to make makings on a shared screen.Type: ApplicationFiled: November 21, 2022Publication date: March 21, 2024Applicant: Acer IncorporatedInventors: Po-Jen Tu, Ming-Chun Fang, Jia-Ren Chang, Kai-Meng Tzeng, Chao-Kuang Yang
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Patent number: 11931993Abstract: A bonding method and a bonding device for a flexible panel. In the process of bonding a protective cover plate and the flexible panel, a heated-type optical adhesive is used, the optical adhesive at normal temperature has relatively low viscosity and the viscosity thereof is below a bondable threshold, so that before the flexible panel and the edge of the protective cover plate are bonded, the optical adhesive and the edge of the protective cover plate come into contact in advance and then can be effectively separated, thus poor bonding in a bending region is avoided, the risk of generating bubbles and cracks is small, and the bonding yield can be improved. Moreover, the optical adhesive is increased in viscosity after heated, thereby ensuring that the flexible panel is bonded to the protective cover plate.Type: GrantFiled: February 2, 2021Date of Patent: March 19, 2024Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jia Deng, Jialin Wang, Rongkun Fan, Shengqiang Wu, Xue Meng, Yuanhong Wen, Senlin Ma, Chaoxue Qin, Peng Wang
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Publication number: 20240090267Abstract: The present disclosure provides a displaying backplane and a displaying device, and relates to the technical field of displaying. The displaying backplane includes: a substrate base plate; a first active layer and a second active layer that are provided on the substrate base plate, wherein the material of the first active layer and the second active layer is an oxide semiconductor, the first active layer has a first channel region and first no-channel regions, and the second active layer has a second channel region and second no-channel regions; a first grid insulating layer covering the first active layer and the second active layer; and a first grid and a second grid that are provided on the first grid insulating layer; wherein the oxygen-vacancy concentration of the first channel region is greater than the oxygen-vacancy concentrations of the first no-channel regions, the second no-channel regions and the second channel region.Type: ApplicationFiled: November 17, 2023Publication date: March 14, 2024Applicant: BOE Technology Group Co., Ltd.Inventors: Jing Wang, Hongwei Tian, Ming Liu, Jia Zhao, Qiuhua Meng, Ziang Han
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Patent number: 11919845Abstract: The invention provides a reaction system for preparing butyraldehyde by propylene carbonylation, comprising: a reactor; a side wall of the reactor is sequentially provided with a catalyst inlet, a propylene inlet and a synthesis gas inlet from top to bottom; the bottom of the reactor is provided with a solvent inlet; two micro-interface generators are arranged inside of the reactor from top to bottom, and the micro-interface generator located at a top end is connected to the propylene inlet to break the propylene gas into micron-scale micro-bubbles; the micro-interface generator located at a bottom is connected to the synthesis gas inlet for breaking the synthesis gas into micron-scale micro-bubbles; the outlets of the two micro-interface generators are opposite, and the outlets are connected with a gas distributor for evenly distributing raw materials.Type: GrantFiled: July 30, 2021Date of Patent: March 5, 2024Assignee: NANJING INSTITUTE OF MICROINTERFACE TECHNOLOGY CO., LTDInventors: Zhibing Zhang, Zheng Zhou, Lei Li, Feng Zhang, Weimin Meng, Baorong Wang, Gaodong Yang, Huaxun Luo, Guoqiang Yang, Hongzhou Tian, Yu Cao, Jia Liu
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Publication number: 20240071361Abstract: An electronic system includes a fan module, an embedded controller, a reference microphone, a stereo speaker module, a beam-forming control module and an ANC controller. The beam-forming control module controls the orientation of the stereo speaker module, which provides a noise cancellation signal according to a speaker control signal. The reference microphone outputs a wide-band noise signal associated with the operation of the fan module. A virtual microphone module in the active noise cancellation controller outputs a virtual error signal according to a first transfer function between the reference microphone and a physical error microphone at a predetermined fan speed, a second transfer function between the stereo speaker module and the physical error microphone when the fan module is not in operation and the wide-band noise signal. The ANC controller provides the speaker control signal according to a synchronization signal, the wide-band noise signal and the virtual error signal.Type: ApplicationFiled: December 20, 2022Publication date: February 29, 2024Applicant: ACER INCORPORATEDInventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng
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Publication number: 20240072736Abstract: An amplifier DC bias protection circuit includes an amplifier module, a filter module and a comparator module. The amplifier module converts an input signal into a non-inverting signal and an inverting signal. The filter module blocks AC signals in the non-inverting signal and the inverting signal, thereby providing a first DC bias signal and a second DC bias signal accordingly. The comparator module is configured to determine whether the absolute value of a DC bias difference signal is greater than a predetermined value, and output a determination signal for deactivating the amplifier module when the absolute value of the DC bias difference signal is greater than the predetermined value. The DC bias difference signal is associated with the voltage difference between the first DC bias signal and the second DC bias signal.Type: ApplicationFiled: December 1, 2022Publication date: February 29, 2024Applicant: ACER INCORPORATEDInventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng, Ming-Chun Yu
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Patent number: 11915710Abstract: A conference terminal and an embedding method of audio watermarks are provided. In the method, a first speech signal and a first audio watermark signal are received respectively. The first speech signal relates to a speaker corresponding to another conference terminal, and the first audio watermark signal corresponds to the another conference terminal. The first speech signal is assigned to a host path to output a second speech signal. The first audio watermark signal is assigned to an offload path to output a second audio watermark signal. The host path provides more digital signal processing (DSP) effects than the offload path. The second speech signal and the second audio watermark signal are synthesized to output a synthesized audio signal. The synthesized audio signal is adapted for audio playback. A completed audio watermark signal is outputted accordingly.Type: GrantFiled: August 16, 2021Date of Patent: February 27, 2024Assignee: Acer IncorporatedInventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng
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Publication number: 20230420928Abstract: Embodiments of present disclosure relate to a direct current circuit breaker and a protection system. The direct current circuit breaker comprises a switch module comprising a first switch and a second switch connected in series between a first terminal of the direct current circuit breaker and a second terminal of the direct current circuit breaker; a current injecting module comprising an inductor, a current injecting switch, and a capacitor connected in series between the first terminal of the direct current circuit breaker and an intermediate node between the first switch and the second switch; an energy absorbing module connected in parallel with the current injecting switch and the capacitor or in parallel with the first switch and configured to limit a voltage across the capacitor to a predetermined level; and a pre-charge module connected in parallel with the capacitor and configured to pre-charge the capacitor.Type: ApplicationFiled: December 2, 2020Publication date: December 28, 2023Inventors: Jia Meng, Zhixiang Wang, Yibo Zhang
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Patent number: 11854310Abstract: A face liveness detection method is performed by an electronic device. The method includes: obtaining an initial face image of an object and a face image set of the object captured at N different illumination directions; obtaining N difference images according to the initial face image and the N face images in the face image set; generating a normal map and an albedo map according to the N difference images and the N illumination directions; and determining a face liveness detection result according to the N difference images, the normal map, and the albedo map, the face liveness detection result indicating whether the object has a live face or not. In this application, three-dimensional (3D) geometric information and surface material information of a face image are considered, thereby recognizing the authenticity of the face image, and effectively resisting different face liveness attack manners.Type: GrantFiled: January 20, 2022Date of Patent: December 26, 2023Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Xuan Cao, Shouhong Ding, Jia Meng, Taiping Yao, Yanhao Ge, Chengjie Wang
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Patent number: 11781710Abstract: Disclosed are an electronic signboard and a wall hanging device. The electronic signboard includes a display device and a wall hanging device. The display device is provided with a first fitting portion, and the wall hanging device is provided with a second fitting portion detachably connected to the first fitting portion. The wall hanging device is further provided a fixing surface via which the wall hanging device is fixed to a mounting base.Type: GrantFiled: May 11, 2021Date of Patent: October 10, 2023Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yanjun Liu, Qingqing Ma, Yinan Gao, Tianjiao Wang, Junpeng Han, Yin Yuan, Jinmiao Tang, Hui Sun, Bangcan Xue, Jia Meng, Tao Jia, Wenfeng Jin, Ming Zhai, Shuo Li, Liguang Deng
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Publication number: 20230302115Abstract: In certain embodiments, the disclosure relates to the polynucleotide sequences of respiratory syncytial virus (RSV). In certain embodiments, the disclosure relates to isolated or recombinant nucleic acids and polypeptides comprising desirable nucleic acid sequences and mutations disclosed herein. In certain embodiments, isolated or recombinant RSV comprising the nucleic acids and polypeptides disclosed herein (e.g., attenuated recombinant RSV) are also provided, as are immunogenic compositions including such nucleic acids, polypeptides, and RSV genomes that are suitable for use as vaccines. Attenuated or killed RSV containing these nucleic acids and mutation in the form of copied nucleic acids (e.g., cDNAs) are also contemplated.Type: ApplicationFiled: October 14, 2022Publication date: September 28, 2023Inventors: Martin L. Moore, Jia Meng, Anne Hotard, Elizabeth Littauer, Christopher Stobart
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Publication number: 20230290187Abstract: A liveness detection method includes: obtaining a reflected audio signal and video data of a object in response to receiving a liveness detection request; performing signal processing and time-frequency analysis on the reflected audio signal to obtain time-frequency information of a processed audio signal, and extracting motion trajectory information of the object from the video data; respectively extract features from the time-frequency information and the motion trajectory information to obtain an audio feature and a motion feature of the object; calculating first global attention information of the object according to the audio feature, and calculating second global attention information of the object according to the motion feature; and fusing the first global attention information with the second global attention information to obtain fused global information, and determining a liveness detection result of the object based on the fused global information.Type: ApplicationFiled: May 17, 2023Publication date: September 14, 2023Inventors: Jia MENG, Dongheng ZHANG, Jian ZHANG, Mingwei BI, Xinzhe DENG, Shouhong DING, Jilin LI
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Publication number: 20230288937Abstract: A control method for a self-moving device includes: obtaining a first working time corresponding to an unworked area in a target working area when a current remaining power of the self-moving device meets a preset charging condition, the target working area being an area where the self-moving device works; determining a first power consumption required by the unworked area according to the first working time; and charging the self-moving device according to the first power consumption. A control apparatus for implementing the control method for the self-moving device is also disclosed.Type: ApplicationFiled: February 26, 2021Publication date: September 14, 2023Inventor: JIA MENG
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Publication number: 20230167140Abstract: Involved are an inositol derivative and a use thereof. Specifically, provided is a compound, said compound includes two or many parts, as represented by formula (D), connected via a common central linker L2, where formula (D) is as shown below.Type: ApplicationFiled: April 30, 2021Publication date: June 1, 2023Inventors: Lianshan ZHANG, Jian HUANG, Lingjian ZHU, Yinggang TANG, Qi HUANG, Jia MENG