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公开(公告)号：US11722161B2
公开(公告)日：2023-08-08
申请号：US17894349
申请日：2022-08-24
CPC分类号： H04B1/04 , H04B1/0014 , H04B1/667 , H04B2001/0491
摘要： A frequency modulation circuit can include: a modulation circuit configured to generate a digital modulation signal and an analog modulation signal according to an input signal of the frequency modulation circuit; and a phase-locked loop having a voltage-controlled oscillator configured to receive a reference frequency, and to modulate a frequency of an output signal of the voltage-controlled oscillator according to the analog modulation signal and the digital modulation signal.
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公开(公告)号：US11438018B2
公开(公告)日：2022-09-06
申请号：US17237236
申请日：2021-04-22
摘要： A frequency modulation circuit can include: a modulation circuit configured to generate a digital modulation signal and an analog modulation signal according to an input signal of the frequency modulation circuit; and a phase-locked loop having a voltage-controlled oscillator configured to receive a reference frequency, and to modulate a frequency of an output signal of the voltage-controlled oscillator according to the analog modulation signal and the digital modulation signal.
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公开(公告)号：US11050432B2
公开(公告)日：2021-06-29
申请号：US16849084
申请日：2020-04-15
摘要： A pseudo differential analog-to-digital converter includes: a first capacitor array and a second capacitor array respectively coupled to input terminals of an analog-to-digital circuit; where an output terminal of the first capacitor array receives a first reference voltage, and an output terminal of the second capacitor array receives a second reference voltage; and where a difference between the first and second reference voltages is set between zero and a peak value of an analog input signal.
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公开(公告)号：US20200343900A1
公开(公告)日：2020-10-29
申请号：US16849084
申请日：2020-04-15
IPC分类号： H03M1/46
摘要： A pseudo differential analog-to-digital converter includes: a first capacitor array and a second capacitor array respectively coupled to input terminals of an analog-to-digital circuit; where an output terminal of the first capacitor array receives a first reference voltage, and an output terminal of the second capacitor array receives a second reference voltage; and where a difference between the first and second reference voltages is set between zero and a peak value of an analog input signal.
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公开(公告)号：US20220407545A1
公开(公告)日：2022-12-22
申请号：US17894349
申请日：2022-08-24
摘要： A frequency modulation circuit can include: a modulation circuit configured to generate a digital modulation signal and an analog modulation signal according to an input signal of the frequency modulation circuit; and a phase-locked loop having a voltage-controlled oscillator configured to receive a reference frequency, and to modulate a frequency of an output signal of the voltage-controlled oscillator according to the analog modulation signal and the digital modulation signal.
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公开(公告)号：US20210344366A1
公开(公告)日：2021-11-04
申请号：US17237236
申请日：2021-04-22
摘要： A frequency modulation circuit can include: a modulation circuit configured to generate a digital modulation signal and an analog modulation signal according to an input signal of the frequency modulation circuit; and a phase-locked loop having a voltage-controlled oscillator configured to receive a reference frequency, and to modulate a frequency of an output signal of the voltage-controlled oscillator according to the analog modulation signal and the digital modulation signal.
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