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公开(公告)号：US20240430834A1
公开(公告)日：2024-12-26
申请号：US18347564
申请日：2023-07-06
Applicant: Ufi Space co., Ltd.
Inventor： Yu-Min Wang , Meng-Chiao Lin
Abstract: A delay compensation method and device are provided. The method includes: obtaining a control plane message; obtaining a path delay of each of multiple radio units, and determining a compensation time length corresponding to each of the radio units based on a reference path delay and the path delay of each of the radio units; and sending the control plane message to each of the radio units based on the compensation time length corresponding to each of the radio units.
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公开(公告)号：US20240259151A1
公开(公告)日：2024-08-01
申请号：US18162621
申请日：2023-01-31
Applicant: Ufi Space co., Ltd.
Inventor： Chih-Chin Chang , Yu-Min Wang , Hai-Jian Zhang , Kai-Yu Yang
CPC classification number: H04L5/0048 , H04W56/001
Abstract: A distributed synchronization system including a management device and a plurality of synchronization devices is provided. The management device includes a network input interface and a network output interface, and is configured to: decode a precision time protocol packet to obtain a reference 1 pulse per second signal, a reference frequency signal, and reference time of day information; send a reference synchronization signal and a reference control signal to a first synchronization device through the network output interface. The reference synchronization signal includes the reference 1 pulse per second signal, the reference frequency signal and the reference time of day information. The reference control signal requests the first synchronization device to synchronize with the management device.
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公开(公告)号：US11609701B1
公开(公告)日：2023-03-21
申请号：US17528170
申请日：2021-11-16
Applicant: Ufi Space co., Ltd.
Inventor： Yu-Min Wang , Chih-Tsao Chang , Ying-Hsiu Lai
IPC: G06F3/06
Abstract: The disclosure provides a power management method and a power management device. The method includes: reading a specific memory which includes a plurality of error data records; selecting a specific data record based on a usage status indicator of each error data record; sequentially sending an enable signal to each hardware device; in response to determining that an enable successful response corresponding to the enable signal is not received from a specific hardware device, or a boot alarm is received, at least obtaining a low pin count value and a power management status; recording the low pin count value and the power management status in the specific data record, and accordingly updating the usage status indicator of the specific data record.
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公开(公告)号：US20220103278A1
公开(公告)日：2022-03-31
申请号：US17090894
申请日：2020-11-06
Applicant: Ufi Space co., Ltd.
Inventor： Yu-Min Wang
Abstract: A synchronization device and a synchronization method for synchronizing a first node and a second node are provided. The first node supports a first time protocol profile, and the second node supports a second time protocol profile. The synchronization method includes: providing a system operating time by a counter; communicating with the first node based on the first time protocol profile to obtain first synchronization information; calculating a time delay according to the first synchronization information, and correcting the system operating time according to the time delay to generate a corrected system operating time; and communicating with the second node based on the second time protocol profile so as to provide the second node with second synchronization information according to the corrected system operating time.
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公开(公告)号：US11418276B2
公开(公告)日：2022-08-16
申请号：US17023361
申请日：2020-09-16
Applicant: Ufi Space co., Ltd.
Inventor： Yu-Min Wang
Abstract: A byte stuffing circuit and a byte stuffing method are provided. The byte stuffing method includes: receiving a first data stream and generating a second data stream according to the first data stream, where a first size of the first data stream is N bytes, and a second size of the second data stream is 2N bytes; in response to an Xth byte of the second data stream matching a first flag byte, overwriting the Xth byte with a first stuffing byte, and inserting a second stuffing byte into an (X+1)th byte of the second data stream, where X is a positive integer between 1 and 2N−1; combining a remnant data stream and a first part of the second data stream to generate a third data stream, and configuring a second part of the second data stream as the remnant data stream; and outputting the third data stream.
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Patent Agency Ranking
公开(公告)号：US20220038199A1
公开(公告)日：2022-02-03
申请号：US17023361
申请日：2020-09-16
Applicant: Ufi Space co., Ltd.
Inventor： Yu-Min Wang
Abstract: A byte stuffing circuit and a byte stuffing method are provided. The byte stuffing method includes: receiving a first data stream and generating a second data stream according to the first data stream, where a first size of the first data stream is N bytes, and a second size of the second data stream is 2N bytes; in response to an Xth byte of the second data stream matching a first flag byte, overwriting the Xth byte with a first stuffing byte, and inserting a second stuffing byte into an (X+1)th byte of the second data stream, where X is a positive integer between 1 and 2N−1; combining a remnant data stream and a first part of the second data stream to generate a third data stream, and configuring a second part of the second data stream as the remnant data stream; and outputting the third data stream.
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公开(公告)号：US20230164725A1
公开(公告)日：2023-05-25
申请号：US17530469
申请日：2021-11-19
Applicant: Ufi Space co., Ltd.
Inventor： Yu-Min Wang , Chih Wei Chang
CPC classification number: H04L7/0016 , H04L7/02
Abstract: A synchronization correction method, a master device, and a slave device are provided. The method includes: transmitting a synchronization signal frame to a slave device during a first period of an ith second, where the synchronization signal frame includes a synchronization header, a first pulse per second (1PPS) signal, first time of date information, and first phase compensation information, where the first phase compensation information is configured to request the slave device to correct a transmission time point at which a first reference 1PPS signal is transmitted during a second period of the ith second; receiving the first reference 1PPS signal from the slave device during the second period of the ith second; and determining second phase compensation information transmitted to the slave device according to a receiving time point at which the first reference 1PPS signal is received during a first period of an (i+1)th second.
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公开(公告)号：US11575405B1
公开(公告)日：2023-02-07
申请号：US17530475
申请日：2021-11-19
Applicant: Ufi Space co., Ltd.
Inventor： Yu-Min Wang , Yu Chih Wang
IPC: H04L7/00 , H04L25/00 , H04L25/40 , H04B1/7087 , H04L7/06
Abstract: The disclosure provides a method for correcting a 1 pulse per second (1PPS) signal and a timing receiver. In the embodiments of the disclosure, the proposed method allows the timing receiver to provide a corrected 1PPS signal with better quality to back-end slave devices, thereby ensuring that the synchronization effect of the slave devices is not overly affected by jitter in a single 1PPS signal.
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公开(公告)号：US11456810B2
公开(公告)日：2022-09-27
申请号：US17090894
申请日：2020-11-06
Applicant: Ufi Space co., Ltd.
Inventor： Yu-Min Wang
Abstract: A synchronization device and a synchronization method for synchronizing a first node and a second node are provided. The first node supports a first time protocol profile, and the second node supports a second time protocol profile. The synchronization method includes: providing a system operating time by a counter; communicating with the first node based on the first time protocol profile to obtain first synchronization information; calculating a time delay according to the first synchronization information, and correcting the system operating time according to the time delay to generate a corrected system operating time; and communicating with the second node based on the second time protocol profile so as to provide the second node with second synchronization information according to the corrected system operating time.
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公开(公告)号：US20200005227A1
公开(公告)日：2020-01-02
申请号：US16192057
申请日：2018-11-15
Applicant: Ufi Space Co., Ltd.
Inventor： CHI-AN SU
IPC: G06Q10/08 , G06Q10/06 , G06F16/903 , H04W4/80
Abstract: A shelf life monitoring system for perishable products of different types comprises a low-temperature display cabinet, a point of sale terminal, and a server, connected through a network. During the storage, the server can determine whether the storage condition required for a perishable product is the same as the storage condition of the low-temperature display cabinet which the perishable product is stored. The server can further determine whether the low-temperature display cabinet is operating normally, and issue alerts as to potential reductions in shelf life of the perishable product when abnormal conditions occur. The server can also periodically check for any life-expired food and notify the point of sale terminal to identify and process a life-expired product in certain ways.
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