Patents by Inventor Zhenghua Luo
Zhenghua Luo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10869198Abstract: A wireless access control method and device are provided. A method applied to a sender terminal includes: generating, by a terminal, an authentication code according to a protocol negotiated with a receiver when sending control-type data, combining, by the terminal, control-type data, the authentication code and a corresponding CRC check code to generate a message, and sending, by the terminal, the message to the receiver, such that the receiver can perform a CRC check on the received message, generates an authentication code according to the negotiated protocol if the CRC check is successful, determines whether the generated authentication code is the same as the received authentication code, if so, analyzes the received control-type data, and if not, discards the received control-type data.Type: GrantFiled: July 1, 2015Date of Patent: December 15, 2020Assignee: Hytera Communications Corporation LimitedInventors: Zhenghua Luo, Chia Han Siong Samuel, Yan Xu, Yingzhe Zhang, Jingjing Zhang
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Patent number: 10659143Abstract: A method of data communication includes: determining, by a first terminal, an idle channel, and transmitting a data handshake request carrying interruption information on the idle channel, wherein the interruption information at least includes an indication for interrupting a call of a traffic channel; receiving a data handshake response transmitted by a repeater; when the data handshake response is of a type allowing interruption, jumping to the traffic channel designated by the repeater according to a channel jumping indication included in the data handshake response; and when determining that a second terminal occupying the traffic channel making the call interrupts the call and releases a resource of the traffic channel, initiating a call on the traffic channel. The embodiments of the present invention can interrupt the call of the transmitting terminal and release the channel resource, and have strong flexibility and high efficiency.Type: GrantFiled: March 2, 2016Date of Patent: May 19, 2020Assignee: Hytera Communications Corporation LimitedInventors: Yan Xu, Zhenghua Luo, Chengfu Huang
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Publication number: 20190280760Abstract: A method of data a communication includes: determining, by a first terminal, an idle channel, and transmitting a data handshake request carrying interruption information on the idle channel, wherein the interruption information at least includes a call indication of an interrupted traffic channel; receiving a data handshake response transmitted by a repeater; when a data handshake response is of a type allowing interruption, jumping to a traffic channel designated by the repeater according to a channel jumping indication included in the data handshake response; and when determining that a second terminal occupying the traffic channel to make a call interrupts the call and releases a resource of the traffic channel, initiating a call on the traffic channel. The embodiments of the present invention can interrupt the call of the transmitting terminal and release the channel resource, and have strong flexibility and high efficiency.Type: ApplicationFiled: March 2, 2016Publication date: September 12, 2019Applicant: Hytera Communications Corporation LimitedInventors: Yan XU, Zhenghua LUO, Chengfu HUANG
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Patent number: 10356845Abstract: A communication method for a mobile station comprises: monitoring broadcast information sent by a currently-residing repeater, wherein the broadcast information carries state information of repeaters within a site and call related information, and a main repeater of the mobile station belongs to the site; acquiring a state of the main repeater according to the broadcast information; determining whether there is a call belonging to the mobile station according to the call related information; and when determining that there is a call belonging to the mobile station, performing handover, according to the call related information, to a repeater corresponding to the call belonging to the mobile station to access the call.Type: GrantFiled: December 31, 2014Date of Patent: July 16, 2019Assignee: Hytera Communication Corporation LimitedInventors: Yingzhe Zhang, Samuel Han Siong Chia, Yan Xu, Yuwang Tan, Zhenghua Luo
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Patent number: 10298342Abstract: Disclosed are a communication method based on a time division multiple access communication system, and a terminal. The method comprises: receiving, by a communication terminal, an embedded signalling frame, conducting embedded type information parsing on the embedded signalling frame to obtain an embedded signalling and control information; in accordance with the control information, caching, by the communication terminal, the embedded signalling to corresponding caching regions; and when each corresponding caching region has already been cached with the embedded signalling, conducting embedded type signalling decoding, by the communication terminal, on the embedded signalling in all the caching regions so as to obtain a control signalling. The technical solution of the present invention can shorten the terminal access duration of the time division multiple access communication system, thereby improving the access performance of the time division multiple access communication system.Type: GrantFiled: December 11, 2013Date of Patent: May 21, 2019Assignee: Hytera Communications Corporation LimitedInventors: Yang Yu, Yan Xu, Zhenghua Luo, Fan Yang
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Publication number: 20180184292Abstract: A wireless access control method and device are provided. A method applied to a sender terminal includes: generating, by a terminal, an authentication code according to a protocol negotiated with a receiver when sending control-type data, combining, by the terminal, control-type data, the authentication code and a corresponding CRC check code to generate a message, and sending, by the terminal, the message to the receiver, such that the receiver can perform a CRC check on the received message, generates an authentication code according to the negotiated protocol if the CRC check is successful, determines whether the generated authentication code is the same as the received authentication code, if so, analyzes the received control-type data, and if not, discards the received control-type data.Type: ApplicationFiled: July 1, 2015Publication date: June 28, 2018Applicant: Hytera Communications Corporation LimitedInventors: Zhenghua Luo, Chia Han Siong Samuel, Yan Xu, Yingzhe Zhang, Jingjing Zhang
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Publication number: 20180176984Abstract: A communication method for a mobile station comprises: monitoring broadcast information sent by a currently-residing repeater, wherein the broadcast information carries state information of repeaters within a site and call related information, and a main repeater of the mobile station belongs to the site; acquiring a state of the main repeater according to the broadcast information; determining whether there is a call belonging to the mobile station according to the call related information; and when determining that there is a call belonging to the mobile station, performing handover, according to the call related information, to a repeater corresponding to the call belonging to the mobile station to access the call.Type: ApplicationFiled: December 31, 2014Publication date: June 21, 2018Applicant: Hytera Communications Coporation LimitedInventors: Yingzhe ZHANG, Samuel Han Siong CHIA, Yan XU, Yuwang TAN, Zhenghua LUO
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Patent number: 9814041Abstract: A communication mode switching method and device. The method comprises: receiving a sending request; detecting whether the radio-frequency signal strength of a downlink channel meets a first threshold; when the radio-frequency signal strength is greater than or equal to the first threshold, determining that a relay station is in a working state, and keeping a relaying mode to finish the sending request; when the radio-frequency signal strength is less than the first threshold, determining that the relay station is in an abnormal state, and switching to an offline mode to finish the sending request, the offline mode specifically being to perform sending after regulating the sending frequency to be the receiving frequency of the downlink channel.Type: GrantFiled: July 24, 2014Date of Patent: November 7, 2017Assignee: Hytera Communications Corp., Ltd.Inventors: Yan Xu, Chia Han Siong Samuel, Yingzhe Zhang, Zhenghua Luo
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Patent number: 9572054Abstract: A realization method, apparatus and system for remote monitoring, the remote monitoring technique is used between interphones, which includes the following contents: a monitored party receives a remote monitoring request from a monitoring party, the remote monitoring request includes a target control information; the monitored party answers confirming information to the monitoring party after receiving the remote monitoring request successfully, and analyzes the target control information, and then selects transmission mode; the monitored party enters monitored state, starts transmission automatically, and implements the transmission according to the selected transmission mode. Applying the embodiments of the present invention, the remote monitoring function of a interphone will be improved, and the monitoring party can initiatively control the transmission time of the monitored party; or transmission interval and times of the monitored party, so as to realize the repeat monitoring is realized.Type: GrantFiled: April 27, 2011Date of Patent: February 14, 2017Assignee: Hytera Communications Corp., Ltd.Inventors: Jianliang Liu, Samuel Han Siong Chia, Zhenghua Luo, Yingzhe Zhang, Yan Xu
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Publication number: 20160323054Abstract: Disclosed are a communication method based on a time division multiple access communication system, and a terminal. The method comprises: receiving, by a communication terminal, an embedded signalling frame, conducting embedded type information parsing on the embedded signalling frame to obtain an embedded signalling and control information; in accordance with the control information, caching, by the communication terminal, the embedded signalling to corresponding caching regions; and when each corresponding caching region has already been cached with the embedded signalling, conducting embedded type signalling decoding, by the communication terminal, on the embedded signalling in all the caching regions so as to obtain a control signalling. The technical solution of the present invention can shorten the terminal access duration of the time division multiple access communication system, thereby improving the access performance of the time division multiple access communication system.Type: ApplicationFiled: December 11, 2013Publication date: November 3, 2016Applicant: Hytera Communications Corp., Ltd.Inventors: Yang Yu, Yan Xu, Zhenghua Luo, Fan Yang
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Publication number: 20160165599Abstract: A communication mode switching method and device. The method comprises: receiving a sending request; detecting whether the radio-frequency signal strength of a downlink channel meets a first threshold; when the radio-frequency signal strength is greater than or equal to the first threshold, determining that a relay station is in a working state, and keeping a relaying mode to finish the sending request; when the radio-frequency signal strength is less than the first threshold, determining that the relay station is in an abnormal state, and switching to an offline mode to finish the sending request, the offline mode specifically being to perform sending after regulating the sending frequency to be the receiving frequency of the downlink channel.Type: ApplicationFiled: July 24, 2014Publication date: June 9, 2016Applicant: Hytera Communications Corp., Ltd.Inventors: Yan Xu, Chia Han Siong Samuel, Yingzhe Zhang, zhenghua Luo
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Publication number: 20140050100Abstract: A realization method, apparatus and system for remote monitoring, the remote monitoring technique is used between interphones, which includes the following contents: a monitored party receives a remote monitoring request from a monitoring party, the remote monitoring request includes a target control information; the monitored party answers confirming information to the monitoring party after receiving the remote monitoring request successfully, and analyzes the target control information, and then selects transmission mode; the monitored party enters monitored state, starts transmission automatically, and implements the transmission according to the selected transmission mode. Applying the embodiments of the present invention, the remote monitoring function of a interphone will be improved, and the monitoring party can initiatively control the transmission time of the monitored party; or transmission interval and times of the monitored party, so as to realize the repeat monitoring is realized.Type: ApplicationFiled: April 27, 2011Publication date: February 20, 2014Applicant: Hytera Communications Corp., Ltd HYT Tower, Hi-Tech Industrial Park NorthInventors: Jianliang Liu, Samuel Han Siong Chia, Zhenghua Luo, Yingzhe Zhang, Yan Xu
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Patent number: 8120303Abstract: Suppression of vibration of a load machine without reducing the responsiveness of the load machine to an operation command is achieved by a method and an apparatus for controlling an inertial system intended to control an inertial system that has a motive power generator and a load machine that are coupled to each other via a torque transmission element. Acceleration command information that designates the acceleration of the load machine is multiplied by a predetermined gain to produce a vibration suppression control variable. The vibration suppression control variable is added to the position command to form a vibration suppression control command, and the inertial system is controlled according to the vibration suppression control command.Type: GrantFiled: September 29, 2008Date of Patent: February 21, 2012Assignee: Oriental Motor Co., Ltd.Inventors: Tsuyoshi Kumagai, Zhenghua Luo
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Publication number: 20100079100Abstract: Suppression of vibration of a load machine without reducing the responsiveness of the load machine to an operation command is achieved by a method and an apparatus for controlling an inertial system intended to control an inertial system that has a motive power generator and a load machine that are coupled to each other via a torque transmission element. Acceleration command information that designates the acceleration of the load machine is multiplied by a predetermined gain to produce a vibration suppression control variable. The vibration suppression control variable is added to the position command to form a vibration suppression control command, and the inertial system is controlled according to the vibration suppression control command.Type: ApplicationFiled: September 29, 2008Publication date: April 1, 2010Inventors: TSUYOSHI KUMAGAI, Zhenghua Luo
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Patent number: D812806Type: GrantFiled: December 5, 2016Date of Patent: March 13, 2018Assignee: Wanwin CorporationInventor: Zhenghua Luo
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Patent number: D841875Type: GrantFiled: January 23, 2018Date of Patent: February 26, 2019Assignee: Lumify International Inc.Inventor: Zhenghua Luo