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91.发明申请公开(公告)号：US20040124910A1
公开(公告)日：2004-07-01
申请号：US10727972
申请日：2003-12-03
Applicant: Airoha Technology Corp.
Inventor： Chao-Hsi Chuang , Yu-Hua Liu
IPC: H02J001/10
CPC classification number: H03L7/0895
Abstract: An automatic adjustment system for source current and sink current mismatch. The system includes a startup compensation/setup device to perform initialization current compensation and accordingly implement a control reference table, a determination device to output a control signal according to the control reference table, and a current compensation device to switch corresponding internal switches on and off according to the control signal and complete the desired compensation for source current and sink current mismatch.
Abstract translation: 源电流和灌电流电流不匹配的自动调节系统。 该系统包括启动补偿/设置装置，用于执行初始化电流补偿，从而实现控制参考表，确定装置根据控制参考表输出控制信号，以及电流补偿装置，用于切换相应的内部开关的接通和关断 根据控制信号，完成源电流和灌电流不匹配的所需补偿。
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公开(公告)号：US12300212B2
公开(公告)日：2025-05-13
申请号：US18211288
申请日：2023-06-19
Applicant: Airoha Technology Corp.
Inventor： Chao-Ling Hsu , Li-Wen Chi , Kai-Sheng Chen
IPC: G10K11/178
Abstract: The present invention relates to an active noise cancellation integrated circuit for stacking at least one anti-noise signal and at least one non-anti-noise signal, an associated method, and an active noise cancellation headphone using the same. The method is applicable to an audio playback device with at least one ANC filtering unit and at least one non-ANC filtering unit. The method includes: acquiring a non-anti-noise signal from a non-ANC filtering unit; generating a decoupled signal by processing the non-anti-noise signal with the transfer function of a physical channel and operations of an ANC filtering unit; performing a signal superposition, wherein an anti-noise signal from the ANC filtering unit is superposed with the decoupled signal; and performing an audio playback based on the superposed signal and an audio signal such that noise is eliminated.
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93.发明申请公开(公告)号：US20250125716A1
公开(公告)日：2025-04-17
申请号：US18908727
申请日：2024-10-07
Applicant: Airoha Technology Corp.
Inventor： Chen-Yu Wang , Ke-Deng Huang
Abstract: A calibration circuit of a pulse-frequency modulation (PFM) converter includes a signal generator circuit and a calibration control circuit. The signal generator circuit generates and outputs an emulated slope signal to a comparator circuit under a calibration mode, wherein the emulated slope signal has an emulated slope following an initial voltage, and the emulated slope corresponds to a slope of a sensed signal indicative of electrical characteristic of an inductor of the PFM converter. The calibration control circuit refers to an output signal that is generated from a PFM control circuit in response to an output signal of the comparator circuit, to calibrate at least one circuit of the PFM converter.
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公开(公告)号：US12255659B2
公开(公告)日：2025-03-18
申请号：US17751675
申请日：2022-05-24
Applicant: Airoha Technology Corp.
Inventor： Heng-Chih Lin , Shu-Yu Lin
Abstract: A charge pump of a phase-locked loop (PLL) circuit includes a current source circuit, a current sink circuit, and a biasing circuit. The biasing circuit includes a current digital-to-analog converter (IDAC) and a low-pass filter (LPF). The IDAC provides a reference current in response to a current value setting, wherein a first voltage is established due to the reference current. The LPF applies low-pass filtering to the first voltage to generate a filter output as a second voltage, wherein bias voltages of the current source circuit and the current sink circuit are controlled by the second voltage.
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公开(公告)号：US12237933B2
公开(公告)日：2025-02-25
申请号：US17567393
申请日：2022-01-03
Applicant: Airoha Technology Corp.
Inventor： Ming-Yi Hsieh
IPC: H04L1/1867 , H04L1/08 , H04L1/1607 , H04R1/10 , H04R5/033 , H04R5/04 , H04S3/00 , H04W4/80 , H04W84/20
Abstract: The invention relates to methods, non-transitory computer-readable storage medium, and apparatus for retransmitting wireless peer packets. A method for retransmitting wireless peer packets, which is performed by a processing unit of a first wireless slave device, includes: receiving a media packet that is originally sent by a wireless master device to a second wireless slave device in a peer-side time period; and transmitting the media packet in a medium in the peer-side time period when a retransmission mechanism is activated between the wireless master device and the second wireless slave device for retransmitting the media packet. The first wireless slave device and the second wireless slave device are mutually peer devices. The peer-side time period indicates a time period that is originally used by the second wireless slave device communicating with the wireless master device.
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Patent Agency Ranking
公开(公告)号：US12143229B2
公开(公告)日：2024-11-12
申请号：US17570815
申请日：2022-01-07
Applicant: Airoha Technology Corp.
Inventor： Ming-Yi Hsieh
IPC: H04L1/1867 , H04L1/08 , H04L1/1607 , H04R1/10 , H04R5/033 , H04R5/04 , H04S3/00 , H04W4/80 , H04W84/20
Abstract: The invention relates to methods, non-transitory computer-readable storage medium, and apparatus for transmitting wireless multi-channel data. A method for transmitting wireless multi-channel data, which is performed by a processing unit of a wireless master device, includes: determining a first physical channel to be jumped into for a first wireless slave device, and a second physical channel to be jumped into for a second wireless slave device; and when the first physical channel is different from the second physical channel, transmitting a first media packet to the first wireless slave device in the first physical channel and a second media packet to the second wireless slave device in the second physical channel in a transmission slot of a subevent. The first wireless slave device and the second wireless slave device are peer devices with each other.
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97.发明公开公开(公告)号：US20240112665A1
公开(公告)日：2024-04-04
申请号：US18199972
申请日：2023-05-21
Applicant: Airoha Technology Corp.
Inventor： Chao-Ling Hsu , Li-Wen Chi , Shih-Kai He
IPC: G10K11/178
CPC classification number: G10K11/17823 , G10K11/17825 , G10K11/17881 , G10K11/17815 , G10K11/17817 , G10K2210/3026 , G10K2210/3027 , G10K2210/3028 , G10K2210/3044 , G10K2210/3055
Abstract: An active noise control (ANC) circuit is used for generating an anti-noise signal, and has a plurality of filters including at least one first filter and at least one second filter. The at least one first filter generates at least one first filter output, wherein each of the at least one first filter has at least one non-static filter and at least one static filter connected in a series fashion. The at least one second filter generates at least one second filter output, wherein each of the at least one second filter has at least one adaptive filter. The anti-noise signal is jointly controlled by the at least one first filter output and the at least one second filter output. The at least one first filter and the at least one second filter are connected in a parallel fashion.
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公开(公告)号：US11869515B2
公开(公告)日：2024-01-09
申请号：US17357187
申请日：2021-06-24
Applicant: Airoha Technology Corp.
Inventor： Yu-Cheng Hsieh
IPC: G10L19/005 , H04R1/10 , G10L19/16 , H04W88/02 , H03F3/183
CPC classification number: G10L19/005 , G10L19/167 , H03F3/183 , H04R1/1016 , H04R1/1041 , H03F2200/03 , H04R2420/07 , H04W88/02
Abstract: The invention relates to apparatuses and methods for enhancing call quality in wireless earbuds. A first wireless earbud includes a first speaker and a first downlink speech process path, and a second wireless earbud includes a second speaker and a second downlink speech process path. The first and the second downlink speech process paths receive the same mono speech data from a mobile phone, and process the mono speech data to generate first and second analog signals, respectively, so that the first and the second speakers play the first and second analog signals, respectively. An inverter is disposed on the first downlink speech process path to generate the inverted digital data or analog signal from received digital data or analog signal corresponding to the mono speech data, but no inverter is disposed on the second downlink speech process path.
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99.发明授权公开(公告)号：US11843929B2
公开(公告)日：2023-12-12
申请号：US17126097
申请日：2020-12-18
Applicant: Airoha Technology Corp.
Inventor： Kuan-Li Chao , Ho-Hsin Liao , I-Ting Lee , Kuo-Wei Kao , Kai-Yuan Hsiao , Wei-Ming Chen , Jian-Ying Li , Wei-Lin Chang , Kuo-Ping Yang
CPC classification number: H04R5/04 , H04R5/02 , H04S3/008 , H04W56/001 , H04B1/38 , H04R2420/07 , H04S2400/01 , H04S2400/13
Abstract: A true wireless multichannel-speakers device and a multiple sound-source voicing method thereof are disclosed. The true wireless multichannel-speakers device includes a first and a second sounder. The first and the second sounders respectively include a first and a second sound effect generators, a first and a second sound effect value providers, and a first and a second speakers. The first sound effect value provider provides a first sound effect control value set to the first sound effect generator to generate a first sound effect output signal so that the first speaker outputs the first sound effect output signal. The second sound effect value provider provides a second sound effect control value set to the second sound effect generator to generate a second sound effect output signal so that the second speaker outputs the second sound effect output signal.
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100.发明公开公开(公告)号：US20230387920A1
公开(公告)日：2023-11-30
申请号：US17751679
申请日：2022-05-24
Applicant: Airoha Technology Corp.
Inventor： Heng-Chih Lin , Shu-Yu Lin
Abstract: A phase-locked loop (PLL) circuit includes a PLL core circuit, at least one lookup table, and a control circuit. The PLL core circuit generates an output clock under an open-loop calibration phase and a closed-loop calibration phase. The control circuit loads PLL parameters that are derived from the at least one lookup table to the PLL core circuit, performs open-loop calibration upon a first part of the PLL parameters under the open-loop calibration phase of the PLL core circuit, and performs closed-loop calibration upon a second part of the PLL parameters under the closed-loop calibration phase of the PLL core circuit.
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