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公开(公告)号：US20240063801A1
公开(公告)日：2024-02-22
申请号：US18498801
申请日：2023-10-31
Inventor： Xiangye WEI , Liming XIU
CPC classification number: H03L7/00 , H03K5/135 , H03K23/542 , H03K19/20
Abstract: An integrated circuit is provided. The integrated circuit includes: a clock source configured to: generate a clock signal of the integrated circuit; at least two functional circuits; and at least two clock generators corresponding to the functional circuits and configured to: determine initial phases of the corresponding functional circuits, and generate clock signals of the functional circuits based on the clock signal of the integrated circuit and the initial phases, so as to keep the clock signals of all the functional circuits synchronized, wherein the initial phases are determined based on transmission distances, over which the clock signal of the integrated circuit is transmitted from the clock source to the functional circuits, and loads of the functional circuits.
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22.发明公开公开(公告)号：US20230394137A1
公开(公告)日：2023-12-07
申请号：US18034051
申请日：2020-11-20
Inventor： Xiangye WEI , Liming XIU
IPC: G06F21/55
CPC classification number: G06F21/552 , G06F2221/034
Abstract: Provided is a security protection method for a heterogeneous system, wherein the heterogeneous system includes a processor. The processor includes a first region, wherein the first region includes a physical unclonable function circuit. The method includes: detecting whether an input of the heterogeneous system is abnormal; acquiring a configuration file in response to the input of the heterogeneous system being detected as abnormal, wherein the acquired configuration file is different from a configuration file of the physical unclonable function circuit that has run; and reconstructing, on the processor, a mapping of the physical unclonable function circuit based on the acquired configuration file.
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公开(公告)号：US20230070146A1
公开(公告)日：2023-03-09
申请号：US17794142
申请日：2021-08-05
Inventor： Xiangye WEI , Yiming BAI , Liming XIU
Abstract: The present disclosure provides a digital fingerprint generator and a digital fingerprint generation method. The digital fingerprint generator comprises: a control circuit, generating a control word; a first pulse generation circuit, connected to the control circuit, and outputting a first pulse signal in response to the control word; a second pulse generation circuit, connected to the control circuit and having the same structure as the first pulse generation circuit, and outputting a second pulse signal in response to the control word; the first pulse signal and the second pulse signal respectively comprising a first frequency signal and a second frequency signal, and a probabilities of occurrence of the first frequency signal and the second frequency signal being controlled by the control word; and an output circuit, respectively connected to the first pulse generation circuit and the second pulse generation circuit, and outputting a digital fingerprint on the basis of the first pulse signal and the second pulse signal according to a preset first rule.
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24.发明申请公开(公告)号：US20220376687A1
公开(公告)日：2022-11-24
申请号：US17642023
申请日：2021-03-09
Inventor： Xiangye WEI , Liming XIU
Abstract: The present disclosure provides a PWM circuit, a modulation method, and an electronic device, and relates to the field of communication technologies. In the PWM circuit, a control word providing circuit can generate, based on an obtained target duty cycle, two target frequency control words with a ratio of the target duty cycle, and output the two target frequency control words to a pulse generation circuit; and the pulse generation circuit can output a target pulse signal with the target duty cycle under the control of the two target frequency control words. Because the control word providing circuit can generate the target frequency control words based on the desired target duty cycle, the pulse generation circuit can reliably generate the pulse signal with the target duty cycle based on the target frequency control words. In this way, the PWM circuit can flexibly generate the pulse signal.
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公开(公告)号：US20220311428A1
公开(公告)日：2022-09-29
申请号：US17837214
申请日：2022-06-10
Inventor： Xiangye WEI , Liming XIU , Yuhai MA
Abstract: A clock spread spectrum circuit, an electronic equipment, and a clock spread spectrum method are disclosed. The clock spread spectrum circuit includes a control circuit, a signal generation circuit, and a duty cycle adjustment circuit. The duty cycle adjustment circuit is configured to generate a target voltage having a duty cycle that is equal to a target duty cycle, the control circuit is configured to generate a frequency control word according to a modulation parameter, and the frequency control word changes discretely with time; and the signal generation circuit is configured to receive the target voltage and the frequency control word and generate and output a spread spectrum output signal that is spectrum-spread according to the target voltage and the frequency control word, and the spread spectrum output signal corresponds to the frequency control word and a duty cycle of the spread spectrum output signal is the target duty cycle.
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Patent Agency Ranking
26.发明申请公开(公告)号：US20220292805A1
公开(公告)日：2022-09-15
申请号：US17754158
申请日：2021-04-15
Applicant: BOE TECHNOLOGY GROUP CO., LTD. , PEKING UNIVERSITY
Inventor： Jie FENG , Yadong MU , Shuai WANG , Guiyu TIAN , Yiming BAI , Xiangye WEI , Ge OU , Qiong WU
IPC: G06V10/26 , G06V10/44 , G06V10/764 , G06V10/774 , G06N7/00
Abstract: An image processing method and apparatus, and a device and a computer-readable storage medium. The method comprises: acquiring an image data set, wherein the image data set includes an image and accompanying text related to an unknown category in the image (S101); and generating a probability and/or distribution of the unknown category by means of an unknown category acquisition model (S102); wherein the probability and/or distribution of the unknown category comprises the probability of each pixel in the image being from the unknown category, the probability of the unknown category being present in the image, and a partitioning probability after the image is subdivided into a plurality of areas. By means of the method, a large amount of human labor costs and time can be saved on.
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公开(公告)号：US20220180001A1
公开(公告)日：2022-06-09
申请号：US17503167
申请日：2021-10-15
Inventor： Xiangye WEI , Yiming BAI , Liming XIU
Abstract: A digital fingerprint generation circuit based on an integrated circuit is provided. In the digital fingerprint generation circuit, a control unit is configured to: generate a first control word and a second control word, and transmit the first control word and the second control word to a first clock generator and a second clock generator respectively, so that the first clock generator generates a first clock signal based on the first control word, and the second clock generator generates a second clock signal based on the second control word; and a frequency detector generates a digital fingerprint of the integrated circuit based on the first clock signal and the second clock signal.
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公开(公告)号：US20210242874A1
公开(公告)日：2021-08-05
申请号：US16651511
申请日：2019-04-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yuhai MA , Xiangye WEI , Liming XIU , Yiming BAI
Abstract: A parameter determination method for a spread spectrum circuit, a clock spread spectrum method, a parameter determination device for a spread spectrum circuit, and a clock spread spectrum device are disclosed. The parameter determination method for the spread spectrum circuit includes: obtaining a base time unit and a target frequency; determining a spread spectrum depth coefficient according to the base time unit and the target frequency; determining whether the spread spectrum depth coefficient is greater than or equal to a base spread spectrum depth coefficient; if yes, determining the spread spectrum depth coefficient as a standard spread spectrum depth coefficient and determining a standard frequency control word according to the standard spread spectrum depth coefficient; and if no, adjusting the base time unit until a corresponding spread spectrum depth coefficient corresponding to the base time unit is greater than or equal to the base spread spectrum depth coefficient.
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公开(公告)号：US20210159893A1
公开(公告)日：2021-05-27
申请号：US16980930
申请日：2019-04-23
Inventor： Xiangye WEI , Liming XIU , Yuhai MA
IPC: H03K5/1252 , H03K5/00 , G06F1/04
Abstract: A clock spread spectrum circuit, an electronic equipment, and a clock spread spectrum method are disclosed. The clock spread spectrum circuit includes a control circuit and a signal generation circuit. The control circuit is configured to generate a frequency control word according to a modulation parameter, and the frequency control word changes discretely with time; and the signal generation circuit is configured to receive the frequency control word and generate and output a spread spectrum output signal that is spectrum-spread according to the frequency control word, and the spread spectrum output signal corresponds to the frequency control word.
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公开(公告)号：US20210075426A1
公开(公告)日：2021-03-11
申请号：US16633638
申请日：2019-01-02
Inventor： Xiangye WEI , Liming XIU
Abstract: A frequency regulator and a frequency regulating method thereof, and an electronic device are disclosed. The frequency regulator includes: a signal processing circuit configured to generate a frequency control word according to a frequency regulating coefficient and an input frequency; and a frequency regulating circuit configured to receive the frequency control word and to generate and output an output signal having a target frequency according to the frequency control word. The frequency regulating coefficient is an arbitrary positive real number and is expressed as M.m, M is an integer portion of the frequency regulating coefficient and is a natural number, and m is a decimal portion of the frequency regulating coefficient.
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