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公开(公告)号:US20230188142A1
公开(公告)日:2023-06-15
申请号:US17580074
申请日:2022-01-20
发明人: Jeffrey David JARRIEL , Daniel Joseph Sutton , Matthew James Stoltenberg , Brandon Gregory King
CPC分类号: H03L7/0807 , H03L7/0992 , G06F1/12 , G06F1/10 , G06F9/3887 , H03L7/22 , H03L2207/50
摘要: Processing a digital bit stream and systems for implementing the methods are provided. The method includes dividing the digital bit stream into a plurality of data packets. In a first processing block performing a carrier recovery error calculation on a first portion of the plurality of data packets, comprising preforming a first phase locked loop (PLL) function on decimated data of the data packets and performing a carrier recovery operation on the first portion of the plurality of data packets. In a second processing block, in parallel with the processing of the first portion of the plurality of packets, performing the carrier recovery error calculation on a second portion of the plurality of data packets, comprising preforming the first PLL function on decimated data of the data packets and performing the carrier recovery operation on second portion of the plurality of data packets.
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公开(公告)号:US11177811B2
公开(公告)日:2021-11-16
申请号:US15719289
申请日:2017-09-28
申请人: Intel Corporation
发明人: Michael D. Hutton , Audrey Kertesz
IPC分类号: H03L7/08 , H03K5/135 , G06F30/34 , G06F30/331 , H03L7/22 , G06F30/396
摘要: Systems and methods described herein are related to clock signal generation for synchronous electronic circuitry. Power management in electronic devices circuitry may be implemented by scaling the frequency multiple functional modules implemented in the synchronous electronic circuitry. The present disclosure discussed clock generators that may provide frequency scaling of clock signals for functional modules within an electronic device. Moreover, certain clock signal generators may reduce mitigate generation of large currents during frequency scaling by employing circuitry that leads to incremental frequency changes. Circuitry that allows substantially glitchless or reduced-glitch transition between clock rate frequencies are also discussed.
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公开(公告)号:US10924094B1
公开(公告)日:2021-02-16
申请号:US16558333
申请日:2019-09-03
发明人: Yueh-Chang Chen
摘要: A pulse width modulation control circuit and a control method of a pulse width modulation signal are provided. A counter circuit generates a count value according to a phase-locked loop clock, and resets the count value according to a transition point of a synchronization signal. A comparison circuit compares the count value with a duty ratio set value, and sets the pulse width modulation signal to a high level while the count value is less than the duty ratio set value.
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公开(公告)号:US20210006447A1
公开(公告)日:2021-01-07
申请号:US16933703
申请日:2020-07-20
申请人: John W. Bogdan
发明人: John W. Bogdan
IPC分类号: H04L27/26 , H04L7/00 , H04L25/03 , H03H17/02 , H03H17/04 , H03L7/00 , H03L7/099 , H03L7/22 , H03L7/091 , H03L7/16
摘要: The data recovery from sub-carriers gradients (DRSG) of a received OFDM signal affected by deterministic and random distortions introduced by a transmission link, contributes a method and a circuit for utilizing gradients characterizing shapes of OFDM sub-carriers comprised in such OFDM signal for recovering data symbols transmitted originally.
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公开(公告)号:US10819353B1
公开(公告)日:2020-10-27
申请号:US16593473
申请日:2019-10-04
摘要: A spur target frequency is periodically determined to cancel a spur using a spur cancellation circuit in a first phase-locked loop (PLL) in a system with at least a second PLL that is in lock with the first PLL. The spur target frequency is periodically determined utilizing divide ratios of the first PLL and the second PLL to determine the updated spur target frequency. As one or more of the divide ratios change, the spur frequency changes and the spur target frequency is updated to reflect the change.
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公开(公告)号:US10721113B2
公开(公告)日:2020-07-21
申请号:US15688858
申请日:2017-08-28
申请人: John W Bogdan
发明人: John W Bogdan
IPC分类号: H04L27/26 , H04L7/00 , H04L25/03 , H03H17/02 , H03H17/04 , H03L7/00 , H03L7/099 , H03L7/22 , H03L7/091 , H03L7/16
摘要: The data recovery from sub-carriers (DRSC) of a received OFDM signal, contributes a method and a circuit for utilizing parameters of OFDM sub-carriers comprised in the received OFDM signal or subspaces comprising the OFDM sub-carriers for recovering transmitted data symbols from the received OFDM signal affected by deterministic and random distortions introduced by a transmission link.
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公开(公告)号:US10530371B2
公开(公告)日:2020-01-07
申请号:US16376444
申请日:2019-04-05
发明人: Juho Jeon , Hun-Dae Choi
摘要: A delay locked loop according to some example embodiments of the inventive concepts may include first, second, and third delay circuits, first and second phase detectors, and first and second controllers. The first delay circuit may generate a first clock by delaying a reference clock. The second and third delay circuits may be configured to generate a second and third clock respectively by delaying the first clock. The first and second phase detector may be configured to detect a phase difference between the second clock and the third clock and the third clock respectively. The first controller may be configured to adjust a delay of the third delay circuit using a detection result of the first phase detector. The second controller may be configured to adjust a delay of the first delay circuit using a detection result of the second phase detector.
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公开(公告)号:US20190379385A1
公开(公告)日:2019-12-12
申请号:US16434893
申请日:2019-06-07
发明人: Youngchang YOON , Kyuhwan AN , Daehyun KANG , Juho SON , Sunggi YANG , Donghyun LEE , Yunsung CHO
摘要: A communication technique for converging internet of everything (IoT) technology with a 5th generation (5G) communication system for supporting a higher data transfer rate beyond a 4G system is provided. The communication technique can be applied to intelligent services, based on 5G communication technology and IoT-related technology. In an embodiment, an electronic device includes a first processor configured to output a first signal for generating a first frequency signal, a second processor configured to output a second signal for generating a second frequency signal, a first radio frequency (RF) chip configured to output the first frequency signal, based on the first signal received from the first processor and a baseband signal, and a second RF chip configured to output the second frequency signal, based on the second signal received from the second processor and the first frequency signal outputted from the first RF chip.
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公开(公告)号:US10419005B2
公开(公告)日:2019-09-17
申请号:US15710506
申请日:2017-09-20
摘要: A phase-lock-loop (PLL) circuit includes a reference PLL circuit configured to generate a reference clock signal; a single clock tree circuit, coupled to the reference PLL circuit, and configured to distribute the reference clock signal; and a plurality of designated PLL circuits coupled to the clock tree circuit, wherein the designated PLL circuits are each configured to receive the distributed reference clock signal through the single clock tree circuit and provide a respective clock signal based on the reference clock signal.
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公开(公告)号:US10008981B2
公开(公告)日:2018-06-26
申请号:US15096612
申请日:2016-04-12
IPC分类号: H03B5/08 , H03B5/12 , H03L1/00 , H03B5/36 , H03L1/02 , H03L7/02 , H03L7/087 , H03L7/095 , H03L7/22 , H03L7/23 , H03L7/183 , H03L7/197
CPC分类号: H03B5/1234 , H03B5/12 , H03B5/1265 , H03B5/36 , H03L1/00 , H03L1/026 , H03L7/02 , H03L7/087 , H03L7/095 , H03L7/183 , H03L7/1976 , H03L7/22 , H03L7/23
摘要: An integrated clock generator includes a tunable LC oscillator, a tunable frequency synthesizer, and a processor. The tunable LC oscillator has an input for receiving an oscillator control signal, and an output for providing an oscillator clock signal. The tunable frequency synthesizer has a clock input coupled to the output of the tunable LC oscillator, a control input for receiving a synthesizer control signal, and an output for providing a clock output signal. The processor has an input for receiving a data input signal, a first output for providing the oscillator control signal, and a second output for providing the synthesizer control signal. The processor provides the oscillator control signal and the synthesizer control signal such that the tunable frequency synthesizer generates the output clock signal at a frequency indicated by the data input signal, and provides the synthesizer control signal further in response to a dynamic condition.
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