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公开(公告)号:US20240364571A1
公开(公告)日:2024-10-31
申请号:US18138743
申请日:2023-04-25
Applicant: Airoha Technology Corp.
Inventor: Jeng-Hong Chen , Chun-Yuan Huang , Yun-Xuan Zhang
CPC classification number: H04L27/2675 , H04L27/0014 , H04L2027/0026
Abstract: A frequency offset (FO) estimation method includes: sampling a frequency-modulated repetition-coded segment of a packet to generate a plurality of samples; obtaining a frequency deviation (FD) value for each of a plurality of target samples selected from the plurality of samples; and estimating an FO value through accumulating complete FD values of the plurality of target samples.
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公开(公告)号:US12191895B2
公开(公告)日:2025-01-07
申请号:US17728197
申请日:2022-04-25
Applicant: Airoha Technology Corp.
Inventor: Tzu-Kuan Yang , Yun-Xuan Zhang
Abstract: A Bluetooth transmitter, a Bluetooth device, and a transmitter are provided. After being received by the transmitter, a transmission bitstream is modulated to generate a first-path modulated signal and a second-path modulated signal, which are up-converted to a first first-path up-converted signal, a second first-path up-converted signal, a first second-path up-converted signal, and a second second-path up-converted signal. The first first-path and the second first-path up-converted signals are corresponding to a first broadcast channel, and the first second-path and the second second-path up-converted signals correspond to a second broadcast channel. A first-path baseband signal is generated based on the first first-path and the second first-path up-converted signals, and a second-path baseband signal is generated based on the first second-path and the second second-path up-converted signals. A broadcast signal is generated based on the first-path and the second-path baseband signals.
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公开(公告)号:US20240204786A1
公开(公告)日:2024-06-20
申请号:US18229161
申请日:2023-08-01
Applicant: Airoha Technology Corp.
Inventor: Chun-Yuan Huang , Chin-Chang Chang , Jeng-Hong Chen , Yun-Xuan Zhang
CPC classification number: H03L7/0991 , H03L7/0814
Abstract: A wireless communication device includes a receiver circuit, a phase shift control circuit, and a digital phase-locked loop (DPLL) circuit. The receiver circuit includes a down-converter circuit that is used to apply down-conversion to an input signal according to a local oscillator (LO) signal. The phase shift control circuit is used to generate a phase shift signal. The DPLL circuit is used to generate the LO signal locked to an initial frequency under a frequency-lock state. In response to the phase shift signal, the DPLL circuit is further used to make the LO signal have a different frequency without leaving the frequency-lock state.
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公开(公告)号:US12278724B2
公开(公告)日:2025-04-15
申请号:US18138743
申请日:2023-04-25
Applicant: Airoha Technology Corp.
Inventor: Jeng-Hong Chen , Chun-Yuan Huang , Yun-Xuan Zhang
Abstract: A frequency offset (FO) estimation method includes: sampling a frequency-modulated repetition-coded segment of a packet to generate a plurality of samples; obtaining a frequency deviation (FD) value for each of a plurality of target samples selected from the plurality of samples; and estimating an FO value through accumulating complete FD values of the plurality of target samples.
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公开(公告)号:US20240380500A1
公开(公告)日:2024-11-14
申请号:US18531707
申请日:2023-12-07
Applicant: Airoha Technology Corp.
Inventor: Jeng-Hong Chen , Yun-Xuan Zhang , Yun-Ju Chan
IPC: H04B17/318
Abstract: A wireless communication method includes: deriving a first received signal at a target channel from a first radio-frequency (RF) signal received through a first antenna; deriving a plurality of different parameters from signal strength of the first received signal; and performing a first packet detection operation for detecting if a packet is included in the first received signal by jointly considering the plurality of different parameters of the first received signal.
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