-
公开(公告)号：US11379714B2
公开(公告)日：2022-07-05
申请号：US16425244
申请日：2019-05-29
发明人： Chi-Wei Peng , Wei-Hsiang Tseng , Hong-Ching Chen , Shen-Jui Huang , Meng-Hsun Wen , Yu-Pao Tsai , Hsuan-Yi Hou , Ching-Hao Yu , Tsung-Liang Chen
IPC分类号： G06N3/06 , G11C11/41 , G06N3/063 , G11C11/413 , H03M1/82
摘要： An in-memory computing memory device is disclosed. The memory device comprises an array of memory cells, a plurality of word lines, a plurality of bit lines, (M+1) input circuits, a wordline driver and an evaluation circuitry. The array is divided into (M+1) lanes and each lane comprises P memory cell columns and an input circuit. The input circuit in each lane charges a predefined bit line with a default amount of charge proportional to an input synapse value and then distributes the default amount of charge to the other second bit lines with a predefined ratio based on a constant current. The evaluation circuitry couples a selected number of the bit lines to an accumulate line and convert an average voltage at the accumulate line into a digital value in response to a set of (M+1) input synapse values and the activated word line.
-
公开(公告)号：US20220078561A1
公开(公告)日：2022-03-10
申请号：US17324717
申请日：2021-05-19
发明人： CHAO-JUNG LAI , ChenChu HSU , ChiHao CHEN , TSUNG-LIANG CHEN
摘要： An own voice suppression apparatus applicable to a hearing aid is disclosed. The own voice suppression apparatus comprises: an air conduction sensor, an own voice indication module and a suppression module. The air conduction sensor is configured to generate an audio signal. The own voice indication module is configured to generate an indication signal according to at least one of user's mouth vibration information and user's voice feature vector comparison result. The suppression module coupled to the air conduction sensor and the own voice indication module is configured to generate an own-voice-suppressed signal according to the indication signal and the audio signal.
-
公开(公告)号：US10720959B2
公开(公告)日：2020-07-21
申请号：US16147955
申请日：2018-10-01
发明人： Yao-Chun Liu , Chun-Hung Chen , Chen-Chu Hsu , Tsung-Liang Chen
摘要： A spread spectrum based audio frequency communication system at least includes a transmitting apparatus. The transmitting apparatus includes a first dot-product module, a summation module, a transmitting modulation module, a mixture module, a digital-to-analog converter, and a transmitter. The first dot-product module is configured to perform a dot-product of a first data and a first pseudo-noise code, and derive a first spreading data. The summation module is configured to sum up the first spreading data and a second spreading data to form a summed data. The transmitting modulation module is configured to vary a carrier signal with the summed data to form a modulated signal. The mixture module is configured to mix the modulated signal and an acoustic signal up to form a mixed signal. The digital-to-analog converter is configured to convert the mixed signal into acoustic waves. The transmitter transmits the acoustic waves.
-
公开(公告)号：US20240205597A1
公开(公告)日：2024-06-20
申请号：US18082224
申请日：2022-12-15
CPC分类号： H04R3/005 , H04R1/1008 , H04R2410/01 , H04R2430/20
摘要： A microphone system for a boomless headset is disclosed, comprising a microphone array and a processing unit. The microphone array comprises Q microphones and generates Q audio signals. A first microphone and a second microphone are disposed on different earcups, and a third microphone is disposed on one of two earcups and displaced laterally and vertically from one of the first and the second microphones. The processing unit performs operations comprising: performing spatial filtering over the Q audio signals using a trained model based on an arc line with a vertical distance and a horizontal distance from a midpoint between the first and the second microphones, a time delay range for the first and the second microphones and coordinates of the Q microphones to generate a beamformed output signal originated from zero or more target sound sources inside a target beam area, where Q>=3.
-
公开(公告)号：US20230276170A1
公开(公告)日：2023-08-31
申请号：US17895980
申请日：2022-08-25
发明人： Hua-Jun HONG , CHIH-SHENG CHEN , HSUEH-YING LAI , Yu-Pao TSAI , TSUNG-LIANG CHEN
IPC分类号： H04R1/40 , H04R3/00 , G10L21/0224 , G06N3/08 , G06N3/04
CPC分类号： H04R1/406 , H04R3/005 , G10L21/0224 , G06N3/08 , G06N3/04 , H04R2410/01 , H04R2430/20 , G10L2021/02166
摘要： A microphone system of the invention is applicable to an electronic device comprising an adjustable mechanism that causes a change in geometry of a microphone array. The microphone system comprises the microphone array, a sensor and a beamformer. The microphone array comprises multiple microphones that detect sound and generate multiple audio signals. The sensor detects a mechanism variation of the electronic device to generate a sensing output. The beamformer is configured to perform a set of operations comprising: performing a spatial filtering operation over the multiple audio signals using a trained model based on the sensing output, one or more first sound sources in one or more desired directions and one or more second sound sources in one or more undesired directions to generate a beamformed output signal originated from the one or more first sound sources.
-
公开(公告)号：US11622208B2
公开(公告)日：2023-04-04
申请号：US17324717
申请日：2021-05-19
发明人： Chao-Jung Lai , ChenChu Hsu , ChiHao Chen , Tsung-Liang Chen
摘要： An own voice suppression apparatus applicable to a hearing aid is disclosed. The own voice suppression apparatus comprises: an air conduction sensor, an own voice indication module and a suppression module. The air conduction sensor is configured to generate an audio signal. The own voice indication module is configured to generate an indication signal according to at least one of user's mouth vibration information and user's voice feature vector comparison result. The suppression module coupled to the air conduction sensor and the own voice indication module is configured to generate an own-voice-suppressed signal according to the indication signal and the audio signal.
-
公开(公告)号：US11594244B2
公开(公告)日：2023-02-28
申请号：US16871587
申请日：2020-05-11
IPC分类号： G10L25/78 , G10L15/06 , G10L15/16 , G06N3/08 , G06N20/10 , G10L15/02 , G10L25/87 , G10L25/84
摘要： A voice event detection apparatus is disclosed. The apparatus comprises a vibration to digital converter and a computing unit. The vibration to digital converter is configured to convert an input audio signal into vibration data. The computing unit is configured to trigger a downstream module according to a sum of vibration counts of the vibration data for a number X of frames. In an embodiment, the voice event detection apparatus is capable of correctly distinguishing a wake phoneme from the input vibration data so as to trigger a downstream module of a computing system. Thus, the power consumption of the computing system is saved.
-
公开(公告)号：US20220383847A1
公开(公告)日：2022-12-01
申请号：US17737501
申请日：2022-05-05
发明人： Ting-Yao CHEN , Chen-Chu HSU , Tsung-Liang CHEN
IPC分类号： G10K11/178 , G05D19/02
摘要： A fan control system applied to N fans inside a computer system is disclosed, comprising: a main microphone, a control circuitry, a wave generation circuitry and a number N of fan controllers. The control circuitry calculates a basic frequency value according to a temperature inside the computer system, and continuously updates a parameter by any known optimization algorithm according to a main audio signal from the main microphone. The wave generation circuitry generates N square waves according to the basic frequency value and the parameter. The N fan controllers respectively form and transmit N modulation signals to the N fans according to the N square waves and N tachometric signals from the N fans. The parameter is one of a frequency variation and a set of phase differences, and the N square waves have the same frequency.
-
公开(公告)号：US11068775B2
公开(公告)日：2021-07-20
申请号：US15910404
申请日：2018-03-02
摘要： A processing apparatus applied in an artificial neuron is disclosed. The processing apparatus comprises a parser, a lookup array, a summing circuit and a MAC circuit. The parser parses one of M packets to extract a non-zero weight value from a header of the one packet, to identify a plurality of bit positions with a specified digit from a payload of the one packet, and to output the non-zero weight value and the bit positions in parallel. The lookup array contains N synapse values and is indexed by the bit positions in parallel to generate a plurality of match values. The summing circuit sums up the match values to generate a sum value. The MAC circuit generates a product of the non-zero weight value and the sum value, and generates an accumulate value based on the product and at least one previous accumulate value.
-
公开(公告)号：US20210118467A1
公开(公告)日：2021-04-22
申请号：US16871587
申请日：2020-05-11
摘要： A voice event detection apparatus is disclosed. The apparatus comprises a vibration to digital converter and a computing unit. The vibration to digital converter is configured to convert an input audio signal into vibration data. The computing unit is configured to trigger a downstream module according to a sum of vibration counts of the vibration data for a number X of frames. In an embodiment, the voice event detection apparatus is capable of correctly distinguishing a wake phoneme from the input vibration data so as to trigger a downstream module of a computing system. Thus, the power consumption of the computing system is saved.
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.018 秒)
