-
公开(公告)号:US20240313747A1
公开(公告)日:2024-09-19
申请号:US18399660
申请日:2023-12-28
Applicant: Airoha Technology Corp
Inventor: Han-Chi Chiu , Jui-Hung Wei , Ke-Deng Huang , John-San Yang
Abstract: A feedback control circuit of a pulse-frequency modulation (PFM) converter includes an on-time timer circuit and a detection circuit. The on-time timer circuit generates an on-time control signal for controlling an on-time duration of a switch circuit included in a power stage circuit of the PFM converter. The detection circuit controls the on-time timer circuit to adaptively adjust the on-time control signal according to a pulse interval between two successive inductor current pulses of the PEM converter.
-
公开(公告)号:US12028438B2
公开(公告)日:2024-07-02
申请号:US17848399
申请日:2022-06-24
Applicant: Airoha Technology Corp.
Inventor: Ming-Yi Hsieh
CPC classification number: H04L7/0079 , G06F1/12
Abstract: An electronic device includes a receiver circuit, a clock generator circuit, and a clock control circuit. The receiver circuit receives first clock information associated with a first clock of another electronic device. The clock generator circuit generates a second clock for the electronic device. The clock control circuit obtains second clock information associated with the second clock, generates a clock control signal according to the first clock information and the second clock information, and outputs the clock control signal to the clock generator circuit, where the clock generator circuit adjusts the second clock in response to the clock control signal.
-
公开(公告)号:US11955108B2
公开(公告)日:2024-04-09
申请号:US17689436
申请日:2022-03-08
Applicant: Airoha Technology Corp.
Inventor: Chao-Ling Hsu , Li-Wen Chi
IPC: G10K11/178 , H04R1/10
CPC classification number: G10K11/17881 , G10K11/17854 , H04R1/1083 , G10K2210/1081
Abstract: The invention relates to an adaptive active noise cancellation apparatus and an audio playback system using the same. The adaptive active noise cancellation apparatus shapes an error signal and a noise signal according to a shape of an ideal noise. After that, the shaped noise signal and the shaped error signal are sent into a parameter adjusting unit to perform an adaptive parameter adjustment. Thus, the adaptive noise filter unit is not only can adaptively suppress noise and minimize the error signal, but also can suppress specific frequencies that are sensitive to the human ear.
-
公开(公告)号:US11942068B2
公开(公告)日:2024-03-26
申请号:US17696901
申请日:2022-03-17
Applicant: Airoha Technology Corp.
Inventor: Chao-Ling Hsu , Li-Wen Chi
IPC: G10K11/178
CPC classification number: G10K11/17854 , G10K11/17815 , G10K11/17823 , G10K11/17825 , G10K11/17881 , G10K2210/3026 , G10K2210/3027 , G10K2210/3028 , G10K2210/3044
Abstract: An adaptive active noise control (ANC) system includes an ANC circuit and a control circuit. The ANC circuit generates an anti-noise signal for noise reduction, wherein the ANC circuit includes at least one adaptive filter. The control circuit receives a first input signal derived from a reference signal output by a reference microphone that picks up ambient noise, receives a second input signal derived from an error signal output by an error microphone that picks up remnant noise resulting from the noise reduction, and performs a transfer function variation detection based on the first input signal and the second input signal to control the at least one adaptive filter.
-
65.
公开(公告)号:US20230412354A1
公开(公告)日:2023-12-21
申请号:US17980566
申请日:2022-11-04
Applicant: Airoha Technology Corp.
Inventor: Chia-Hsing Hsu , Chun-Chia Huang
IPC: H04L7/00
CPC classification number: H04L7/0025 , H04L7/0008 , H04L7/0029
Abstract: A 100BASE-TX transceiver includes a receive (RX) circuit, a transmit (TX) circuit, and a noise reduction circuit. The RX circuit receives an input data according to an RX clock, to generate an RX data. The TX circuit transmits a TX data according to a TX clock, to generate an output data, wherein the TX clock is constrained to be in sync with the RX clock. The noise reduction circuit applies noise reduction to the RX data according to the TX data, to generate a noise-reduced RX data.
-
66.
公开(公告)号:US20230402818A1
公开(公告)日:2023-12-14
申请号:US18070406
申请日:2022-11-28
Applicant: Airoha Technology Corp.
Inventor: Chun-Wei Chen , Ming-Yin Ko , Yan-Bin Luo
IPC: H01S5/02345 , H01S5/02 , H01S5/02315 , H01S5/02355
CPC classification number: H01S5/02345 , H01S5/0215 , H01S5/02315 , H01S5/02355 , H01S5/0261
Abstract: A semiconductor package includes a printed circuit board (PCB), a semiconductor device, a first signal bonding wire, and a first ground bonding wire. The PCB includes a first PCB ground pad and a first PCB signal trace. The semiconductor device includes a first device ground pad and a first device signal pad. The first signal bonding wire is coupled between the first device signal pad and the first PCB signal trace. The first ground bonding wire is coupled between the first device ground pad and the first PCB ground pad, wherein the first ground bonding wire crosses over the first signal bonding wire.
-
公开(公告)号:US20230396163A1
公开(公告)日:2023-12-07
申请号:US18139953
申请日:2023-04-27
Applicant: Airoha Technology Corp.
Inventor: Jui-Hung Wei , Han-Chi Chiu , En-Yang Lin , John-San Yang
Abstract: A feedback control circuit of a pulse-frequency modulation (PFM) converter includes a multiplexer circuit and a detection circuit. The multiplexer circuit is arranged to receive a plurality of candidate peak current values, and output one of the plurality of candidate peak current values as a target peak current value according to a selection control signal, wherein a peak current value of an inductor current pulse of the PFM converter is subject to the target peak current value. The detection circuit is arranged to adaptively adjust the selection control signal according to a pulse interval between two successive inductor current pulses of the PFM converter.
-
公开(公告)号:US20230298560A1
公开(公告)日:2023-09-21
申请号:US17697919
申请日:2022-03-17
Applicant: Airoha Technology Corp.
Inventor: Chao-Ling Hsu , Li-Wen Chi
IPC: G10K11/178
CPC classification number: G10K11/17854 , G10K11/17823 , G10K11/17825 , G10K11/17881 , G10K11/1783 , G10K2210/3044 , G10K2210/3028 , G10K2210/3027 , G10K2210/3026
Abstract: An adaptive active noise control (ANC) system includes an ANC circuit and a control circuit. The ANC circuit generates an anti-noise signal, and includes at least one adaptive filter. The control circuit receives a first input signal derived from a reference signal output by a reference microphone that picks up ambient noise, receives a second input signal derived from an error signal output by an error microphone that picks up remnant noise resulting from noise reduction, and performs a comparison operation based on a first characteristic value of the first input signal and a second characteristic value of the second input signal to control the at least one adaptive filter.
-
公开(公告)号:US11610596B2
公开(公告)日:2023-03-21
申请号:US17023435
申请日:2020-09-17
Applicant: Airoha Technology Corp.
Inventor: Kuan-Li Chao , Wei-Ren Lan , Hung Lin , Kuo-Ping Yang
IPC: G10L21/007 , G10L15/22 , G10L25/78
Abstract: An adjustment method of sound output is disclosed. The adjustment method includes the following steps of: receiving an audio message having a vowel message; determining whether the audio message is a whispered voice message; if the audio message is a whispered voice message, outputting a normal voice message, wherein the spoken content of the normal voice message is the same as that of the audio message, and the normal voice message has a normal voice vowel message, wherein the sound energy of the low-frequency part of the normal voice vowel message is 1.5-1,000,000 times that of the vowel message.
-
公开(公告)号:US20230069016A1
公开(公告)日:2023-03-02
申请号:US17850357
申请日:2022-06-27
Applicant: Airoha Technology Corp.
Inventor: Wen-Tsung HUANG
Abstract: The invention relates to a method, a non-transitory computer-readable storage medium, and an apparatus for receiving Bluetooth packets and correcting error bits therein. The method, which is performed by a processing unit, includes: receiving Bluetooth packets from radio frequency (RF) signal; verifying a unique synthesized packet with a first checksum thereof when the unique synthesized packet can be generated from the Bluetooth packets; generating synthesized packet candidates according to at least one inconsistent bit between the Bluetooth packets and verifying each synthesized packet candidate with a second checksum thereof when the unique synthesized packet cannot be generated from the Bluetooth packets; and transmitting a synthesized packet that has passed a verification to a program module for an application when the unique synthesized packet or any of the synthesized packet candidates passes the verification.
-
-
-
-
-
-
-
-
-