公开(公告)号：US20240357288A1

公开(公告)日：2024-10-24

申请号：US18327878

申请日：2023-06-01

申请人： Acer Incorporated

发明人： Po-Jen Tu ,  Jia-Ren Chang ,  Kai-Meng Tzeng

IPC分类号： H04R3/12 ,  H04S1/00

CPC分类号： H04R3/12 ,  H04S1/00 ,  H04R2203/12

摘要： A pairing method of dual channel and a mobile device are provided. In the method, an available area is defined according to a first position relation between two audio playback devices and a reference target. A second position relation between the mobile device and the available area is determined. A first corresponding relation between the two audio playback devices and audio signals of the left channel and the right channel is determined according to the second position relation. The audio signals of the left channel and the right channel are played by the two audio playback devices respectively according to the first corresponding relation. Accordingly, the existing problem that the dual channel could not be distinguished may be solved.

公开(公告)号：US20240203441A1

公开(公告)日：2024-06-20

申请号：US18308680

申请日：2023-04-28

申请人： Acer Incorporated

发明人： Po-Jen Tu ,  Jia-Ren Chang ,  Kai-Meng Tzeng

IPC分类号： G10L21/0308 ,  G10L25/06 ,  H04R1/02 ,  H04R1/40 ,  H04R3/00

CPC分类号： G10L21/0308 ,  G10L25/06 ,  H04R1/028 ,  H04R1/406 ,  H04R3/005 ,  H04R2499/15

摘要： An audio signal processing method and a mobile apparatus are provided. In the method, a target direction in multiple sound-reception directions and a target distance corresponding to the target direction is determined according to multiple first audio signals in the sound-reception directions received by an embedded microphone. A target algorithm is selected from multiple blind signal separation (BSS) algorithms according to the target direction and the target distance. The first audio signal received by the embedded microphone at the target direction is set as a secondary signal of the target algorithm, and the second audio signal received by an external microphone is set as a primary signal of the target algorithm. The audio signal of the primary sound source is separated from the primary signal and the secondary signal through the target algorithm. Accordingly, the microphone path merely outputs a single audio signal of the primary sound source.

公开(公告)号：US11955132B2

公开(公告)日：2024-04-09

申请号：US17715064

申请日：2022-04-07

申请人： Acer Incorporated

发明人： Po-Jen Tu ,  Jia-Ren Chang ,  Kai-Meng Tzeng

IPC分类号： G10L19/018 ,  G10L21/0208 ,  G10L25/78

CPC分类号： G10L19/018 ,  G10L21/0208 ,  G10L25/78 ,  G10L2025/783

摘要： 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.

公开(公告)号：US20240046911A1

公开(公告)日：2024-02-08

申请号：US17973508

申请日：2022-10-25

申请人： ACER INCORPORATED

发明人： Po-Jen Tu ,  Ruey-Ching Shyu ,  Jia-Ren Chang ,  Kai-Meng Tzeng

IPC分类号： G10K11/178

CPC分类号： G10K11/17853 ,  G10K11/17857 ,  G10K2210/11

摘要： An electronic system includes a fan module, a reference microphone, a micro speaker module, and an active noise cancellation controller. The micro speaker module provides a noise-cancellation signal according to a micro speaker control signal for canceling the noises generated during the operation of the electronic system. The reference microphone outputs a wide-band noise signal associated with the operation of the fan module. The active noise cancellation controller outputs a virtual error signal according to a first transfer function between the reference microphone and a physical microphone when the fan module operates with a predetermined fan speed, a second transfer function between the micro speaker module and the physical microphone when the fan module is not in operation, and the wide-band noise signal. The active noise cancellation controller provides the micro speaker control signal according to a synchronization signal, the wide-band noise signal and the virtual error signal.

公开(公告)号：US20230197088A1

公开(公告)日：2023-06-22

申请号：US17749158

申请日：2022-05-20

申请人： Acer Incorporated

发明人： Po-Jen Tu ,  Jia-Ren Chang ,  Kai-Meng Tzeng

IPC分类号： G10L19/018 ,  G10L19/008 ,  G10L19/26

CPC分类号： G10L19/018 ,  G10L19/008 ,  G10L19/26

摘要： A processing method of a sound watermark and a sound watermark generating apparatus are provided. The method includes the following. A conversation-received sound signal sound signal is obtained by a sound receiver. A reflected sound signal is generated according to a virtual reflection condition and the conversation-received sound signal. A first watermark sound signal is generated according to a watermark identification code and the reflected sound signal. A second watermark sound signal is generated according to a sound signal distance value and the first watermark sound signal. An output watermark sound signal is generated by synthesizing the first watermark sound signal and the second watermark sound signal.

公开(公告)号：US20230058981A1

公开(公告)日：2023-02-23

申请号：US17474077

申请日：2021-09-14

申请人： Acer Incorporated

发明人： Po-Jen Tu ,  Jia-Ren Chang ,  Kai-Meng Tzeng

IPC分类号： G10L21/0364 ,  G10L21/0208 ,  G10L19/018 ,  H04N7/15

摘要： A conference terminal and an echo cancellation method for a conference are provided. In the echo cancellation method, a synthetic speech signal is received. The synthetic speech signal includes a user speech signal of a speaking party corresponding to a first conference terminal of multiple conference terminals and an audio watermark signal corresponding to the first conference terminal. One or more delay times corresponding to the audio watermark signal are detected in a received audio signal. The received audio signal is recorded through a sound receiver of a second conference terminal of the conference terminals. An echo in the received audio signal is canceled according to the delay time.

公开(公告)号：US20230030369A1

公开(公告)日：2023-02-02

申请号：US17476477

申请日：2021-09-16

申请人： Acer Incorporated

发明人： Po-Jen Tu ,  Jia-Ren Chang ,  Kai-Meng Tzeng

IPC分类号： G10L19/018

摘要： A processing method of sound watermark and a sound watermark generating apparatus are provided. In the method, a call reception sound signal is obtained by a sound receiver. A reflection sound signal is generated according to a virtual reflection condition and the call reception sound signal. The reflection sound signal is a sound signal obtained by simulating a sound output by the sound source, then being reflected by the external object, and being further recorded by the sound receiver. The phase of the reflection sound signal is shifted according to a watermark indication code to generate a sound watermark signal. The sound watermark signal includes the reflection sound signal with the phase shift. Accordingly, at the receiver end, the sound watermark signal via the feedback path could be eliminated by echo cancellation, and the sound watermark signal would not affect the speech signal on the call transmission path.

公开(公告)号：US11026022B1

公开(公告)日：2021-06-01

申请号：US16740507

申请日：2020-01-13

申请人： Acer Incorporated

发明人： Po-Jen Tu ,  Jia-Ren Chang ,  Kai-Meng Tzeng

IPC分类号： H04R3/04 ,  H04R3/00

摘要： The disclosure provides an audio signal processing circuit and an audio signal processing method, adapted for processing the input signal of a speaker configured with a rated power. The audio signal processing circuit includes, but not limited to, an audio signal generator and a power adjuster. The audio signal generator provides an audio signal including a high-frequency signal and a middle and low-frequency signal. The power adjuster is electronically coupled to the audio signal generator, and adjusts the power of the high-frequency signal according to an enhanced power larger than the rated power without adjusting the power of the middle and low-frequency signal. The output signal of the power adjuster can be inputted into the speaker. Accordingly, the transmission range for the high-frequency signal can be improved.

公开(公告)号：US11012800B2

公开(公告)日：2021-05-18

申请号：US16740502

申请日：2020-01-13

申请人： Acer Incorporated

发明人： Po-Jen Tu ,  Jia-Ren Chang ,  Kai-Meng Tzeng

IPC分类号： H04S7/00 ,  H04R29/00

摘要： A correction system and a correction method of signal measurement are provided. In the method, a transmitted signal and a received signal are divided into a plurality of transmitted signal groups and a plurality of received signal groups according to a time length, respectively. The received signal is related to a signal received after the transmitted signal is transmitted, and the transmitted signal is a periodic signal. A plurality of to-be-evaluated groups are selected from the received signal groups according to a correlation between the transmitted signal groups and the received signal groups. The correlation corresponds to a delay between the transmitted signal and the received signal. The signal energy of the received signal is determined according to the signal energy of the to-be-evaluated groups. Accordingly, the accuracy of signal measurement can be improved.

公开(公告)号：US10735883B2

公开(公告)日：2020-08-04

申请号：US16531770

申请日：2019-08-05

申请人： ACER INCORPORATED

发明人： Po-Jen Tu ,  Jia-Ren Chang ,  Kai-Meng Tzeng

IPC分类号： H04S7/00 ,  H04S5/00

摘要： A sound effect controlling method and a sound outputting device with orthogonal base correction are provided. The sound effect controlling method includes the following steps. Firstly, 6 or 8 initial sound signals are generated according to an original left sound signal and an original right sound signal. Next, a first gain is calculated according to a rotation angle and a first axial angle, and a second gain is calculated according to the rotation angle and a second axial angle, wherein the first axial angle and the second axial angle are orthogonal. Lastly, a modified left sound signal and a modified right sound signal are obtained according to the first gain and the second gain.