FREQUENCY SOURCE WITH AN ADJUSTABLE FREQUENCY AND RELATED SYSTEM, METHOD AND ELECTRONIC DEVICE

    公开(公告)号:US20190361484A1

    公开(公告)日:2019-11-28

    申请号:US15751615

    申请日:2017-08-24

    Inventor: Liming XIU

    Abstract: The present disclosure relates to a frequency source with an adjustable frequency, and related system, method and electronic device, in particular to a frequency source with an adjustable frequency comprising an input terminal for receiving an input voltage signal, wherein the frequency source identifies a frequency of the input voltage signal. The present disclosure relates to a system comprising the frequency source, a method for identifying the frequency of the voltage signal, and an electronic device comprising the frequency source.

    OPTICAL COMMUNICATION DRIVE CIRCUIT AND METHOD, OPTICAL COMMUNICATION TRANSMITTER AND SYSTEM, AND VEHICLE

    公开(公告)号:US20210232175A1

    公开(公告)日:2021-07-29

    申请号:US16769297

    申请日:2019-03-29

    Abstract: The present disclosure provides an optical communication drive circuit and method, an optical communication transmitter, an optical communication system, and a vehicle. The optical communication drive circuit includes a clock circuit and a modulation circuit. The clock circuit is configured to output a clock signal with an initial frequency signal as an input under control of information to be transmitted. The clock signal includes alternating first and second frequency signals, the first frequency signal and the second frequency signal having different frequencies and being generated based on the initial frequency signal; and the modulation circuit is configured to modulate an optical signal by the clock signal to obtain a modulated optical signal.

    MEASURING DEVICE AND MEASURING METHOD

    公开(公告)号:US20210226618A1

    公开(公告)日:2021-07-22

    申请号:US16633298

    申请日:2019-01-02

    Abstract: A measuring device and a measuring method are provided. The measuring device includes an oscillating circuit, a time average frequency-frequency lock loop, and a digital signal processing circuit. The oscillation circuit includes an element to be measured and is configured to output a signal having an oscillation frequency correlated with an element value of the element to be measured. The time average frequency-frequency lock loop is configured to receive the signal output by the oscillation circuit and output a frequency control word correlated with the oscillation frequency. The digital signal processing circuit is configured to read the frequency control word output by the time average frequency-frequency lock loop and obtain the element value of the element to be measured according to the read frequency control word. The measuring device is easy to integrate, has small volume, low power consumption, and high reliability, and can achieve high-precision measurement.

    INTERACTIVE AUTHENTICATION METHOD, SYSTEM, COMPUTER DEVICE, AND NON-VOLATILE READABLE STORAGE MEDIUM

    公开(公告)号:US20240048540A1

    公开(公告)日:2024-02-08

    申请号:US18266690

    申请日:2020-12-24

    CPC classification number: H04L63/0457 H04L9/3278

    Abstract: Provided is an interactive authentication method, applicable to a transmitter. The transmitter is communicatively connected to a receiver. The authentication method includes: generating a first challenge and transmitting the first challenge to the receiver; receiving a response from the receiver, wherein the response comprises first identity authentication information and a second challenge, the first identity authentication information and the second challenge being encrypted using a first identity authentication key; generating, based on the first challenge, a second identity authentication key and second identity authentication information; and decrypting the first identity authentication information using the second identity authentication key, and performing identity authentication by matching the decrypted first identity authentication information with the second identity authentication information.

    DATA PROCESSING CIRCUIT, DATA PROCESSING METHOD, AND ELECTRONIC DEVICE

    公开(公告)号:US20220318185A1

    公开(公告)日:2022-10-06

    申请号:US17427235

    申请日:2020-10-27

    Abstract: A data processing circuit, a data processing method, and an electronic device are provided. The data processing circuit includes a first data processing sub-circuit and a second data processing sub-circuit. An output terminal of the first data processing sub-circuit is connected to an input terminal of the second data processing sub-circuit. The first data processing sub-circuit is configured to receive an original sequence to generate a first processed sequence. Each of first processed numbers in the first processed sequence is calculated from at least two pieces of original data in the original data. The second data processing sub-circuit is configured to receive the first processed sequence to generate a second processed sequence.

    OPTICAL COMMUNICATION APPARATUS, OPTICAL COMMUNICATION SYSTEM AND METHOD

    公开(公告)号:US20220311606A1

    公开(公告)日:2022-09-29

    申请号:US17297540

    申请日:2020-06-10

    Abstract: The optical communication apparatus includes a random number generator, a first key manager, a first encryption and decryption device, a driver and a transmitter. The random number generator is configured to generate a random number based on a time frequency. The first key manager is configured to generate a first key based on the random number, store and manage the first key and a second key obtained from an outside. The first encryption and decryption device is configured to encrypt the first key according to the second key to obtain a first encrypted key, and is configured to encrypt initial communication data according to the first key to obtain encrypted data. The driver is configured to obtain the encrypted data and encode the encrypted data into a visible light emission instruction. The first transmitter is configured to receive the visible light emission instruction and emit first visible light.

    TIME SYNCHRONIZATION METHOD AND DEVICE, NETWORK NODE DEVICE

    公开(公告)号:US20220311529A1

    公开(公告)日:2022-09-29

    申请号:US17413367

    申请日:2020-01-19

    Abstract: There is provided a time synchronization method, including: an adjustment stage including N adjustment cycles, N being an integer greater than 1; in each adjustment cycle, generating a physical clock signal at least according to a pre-acquired frequency control word corresponding to the adjustment cycle, and obtaining logical time at least according to the physical clock signal and a physical time deviation; a clock slope of the physical clock signal generated in each adjustment cycle reaches its corresponding target value, and the target values of the clock slopes of the physical clock signals in the N adjustment cycles gradually approach 1; the physical time deviation is: a time difference between the reference time and the physical time corresponding to the physical clock signal in an Nth adjustment cycle at the end of the Nth adjustment cycle. A time synchronization device and a network node device are provided.

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