Patents by Inventor Shen-Chung Lee
Shen-Chung Lee 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: 11736319Abstract: A wireless communication device for a transmission end of a wireless communication system is provided. The wireless communication device includes a wireless analog transmission unit, for transmitting a data packet on a data transmission channel; and a packet generating unit, for generating the data packet and at least one protection packet; wherein before transmitting the data packet on the data transmission channel, the wireless communication device transmits the at least one protection packet on at least one adjacent channel of the data transmission channel to indicate to at least one user of the at least one adjacent channel to stop using the at least one adjacent channel before transmission of the data packet is completed, and at least one frequency band of the at least one adjacent channel overlaps a frequency band of the data transmission channel.Type: GrantFiled: May 6, 2021Date of Patent: August 22, 2023Assignee: Realtek Semiconductor Corp.Inventors: Shen-Chung Lee, Wei-Hsuan Chang, Wen-Yung Lee, Yu-Nan Lin, Chih-Heng Tsai, Tzu-Hao Tai
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Patent number: 11489744Abstract: A communication device includes a packet detection circuit, a decoding circuit and a threshold decision circuit. The packet detection circuit is arranged to perform packet detection according to at least one threshold to determine whether a packet is included in a received signal. The decoding circuit is arranged to decode the packet when packet detection circuit determines that the packet is included in the received signal, and determine whether the packet is a predetermined packet. The threshold decision circuit is arranged to calculate a number of the predetermined packet received within a time period and adjust the at least one threshold according to the number of the predetermined packet.Type: GrantFiled: March 2, 2021Date of Patent: November 1, 2022Assignee: Realtek Semiconductor Corp.Inventors: Wei-Chi Lai, Wei-Hsuan Chang, Shen-Chung Lee
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Publication number: 20220166651Abstract: A wireless communication device for a transmission end of a wireless communication system is provided. The wireless communication device includes a wireless analog transmission unit, for transmitting a data packet on a data transmission channel; and a packet generating unit, for generating the data packet and at least one protection packet; wherein before transmitting the data packet on the data transmission channel, the wireless communication device transmits the at least one protection packet on at least one adjacent channel of the data transmission channel to indicate to at least one user of the at least one adjacent channel to stop using the at least one adjacent channel before transmission of the data packet is completed, and at least one frequency band of the at least one adjacent channel overlaps a frequency band of the data transmission channel.Type: ApplicationFiled: May 6, 2021Publication date: May 26, 2022Inventors: Shen-Chung Lee, Wei-Hsuan Chang, Wen-Yung Lee, Yu-Nan Lin, Chih-Heng Tsai, Tzu-Hao Tai
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Patent number: 11197201Abstract: This invention discloses a method for controlling a wireless communication device to reduce the number of retry times of data packets during transmission. The method includes steps of: using a first packet length to generate and transmit data packets; counting retry times of data packets in a predetermined time period and generating a result accordingly; and using a second packet length smaller than said first packet length to generate and transmit data packets when said result is greater than a predetermined value.Type: GrantFiled: January 7, 2020Date of Patent: December 7, 2021Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Yu-Nan Lin, Wei-Chi Lai, Shen-Chung Lee, Chung-Yao Chang, Wei-Hsuan Chang
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Publication number: 20210297332Abstract: A communication device includes a packet detection circuit, a decoding circuit and a threshold decision circuit. The packet detection circuit is arranged to perform packet detection according to at least one threshold to determine whether a packet is included in a received signal. The decoding circuit is arranged to decode the packet when packet detection circuit determines that the packet is included in the received signal, and determine whether the packet is a predetermined packet. The threshold decision circuit is arranged to calculate a number of the predetermined packet received within a time period and adjust the at least one threshold according to the number of the predetermined packet.Type: ApplicationFiled: March 2, 2021Publication date: September 23, 2021Inventors: Wei-Chi Lai, Wei-Hsuan Chang, Shen-Chung Lee
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Publication number: 20200145883Abstract: This invention discloses a method for controlling a wireless communication device to reduce the number of retry times of data packets during transmission. The method includes steps of: using a first packet length to generate and transmit data packets; counting retry times of data packets in a predetermined time period and generating a result accordingly; and using a second packet length smaller than said first packet length to generate and transmit data packets when said result is greater than a predetermined value.Type: ApplicationFiled: January 7, 2020Publication date: May 7, 2020Inventors: YU-NAN LIN, WEI-CHI LAI, SHEN-CHUNG LEE, CHUNG-YAO CHANG, WEI-HSUAN CHANG
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Patent number: 10595232Abstract: This invention discloses a method for controlling a wireless communication device to transmit data packets. The method includes steps of: transmitting data packets; counting retry times of data packets in a predetermined time period and generating a result accordingly; comparing said result with a predetermined value and generating a comparison result accordingly; and reducing transmission time of data packets according to said comparison result.Type: GrantFiled: June 7, 2017Date of Patent: March 17, 2020Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Yu-Nan Lin, Wei-Chi Lai, Shen-Chung Lee, Chung-Yao Chang, Wei-Hsuan Chang
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Patent number: 10312870Abstract: A method for processing wireless signals and a wireless device are disclosed. The method for processing wireless signals is applied to the wireless device that includes an amplifier circuit amplifying wireless signals according to a base gain. The method for processing wireless signals includes steps of: setting the base gain as a first gain value in a first operation period; performing multiple packet detections in the first operation period and counting a total number of false alarms; determining a second gain value according to the total number of false alarms; and setting the base gain as a second gain value in a second operation period that is later than the first operation period.Type: GrantFiled: January 12, 2018Date of Patent: June 4, 2019Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Shen-Chung Lee, Wei-Hsuan Chang, Chifang Chang, Chenpeng Wen
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Patent number: 10313981Abstract: The present invention discloses a gain adjustment method for wireless communication. This method is carried out by a wireless transceiver, and an embodiment of the method comprises the following steps: obtaining at least one transceiving parameter of a wireless connection partner; determining an adaptive power gain according to the at least one transceiving parameter; having an idle power gain of a radio-frequency circuit of the wireless transceiver be the adaptive power gain for a period of time, or having the idle power gain of the radio-frequency circuit be the adaptive power gain until packet transmission operation or packet reception operation takes place within the period of time; and if none of the packet transmission operation and the packet reception operation takes place within the period of time, having the idle power gain of the radio-frequency circuit be an initial power gain right after the period of time.Type: GrantFiled: April 2, 2018Date of Patent: June 4, 2019Assignee: REALTEK SEMICONDUCTOR CORP.Inventors: Wei-Hsuan Chang, Shen-Chung Lee, Chi-Fang Chang, Yu-Nan Lin
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Publication number: 20180324709Abstract: The present invention discloses a gain adjustment method for wireless communication. This method is carried out by a wireless transceiver, and an embodiment of the method comprises the following steps: obtaining at least one transceiving parameter of a wireless connection partner; determining an adaptive power gain according to the at least one transceiving parameter; having an idle power gain of a radio-frequency circuit of the wireless transceiver be the adaptive power gain for a period of time, or having the idle power gain of the radio-frequency circuit be the adaptive power gain until packet transmission operation or packet reception operation takes place within the period of time; and if none of the packet transmission operation and the packet reception operation takes place within the period of time, having the idle power gain of the radio-frequency circuit be an initial power gain right after the period of time.Type: ApplicationFiled: April 2, 2018Publication date: November 8, 2018Inventors: WEI-HSUAN CHANG, SHEN-CHUNG LEE, CHI-FANG CHANG, YU-NAN LIN
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Publication number: 20180241361Abstract: A method for processing wireless signals and a wireless device are disclosed. The method for processing wireless signals is applied to the wireless device that includes an amplifier circuit amplifying wireless signals according to a base gain. The method for processing wireless signals includes steps of: setting the base gain as a first gain value in a first operation period; performing multiple packet detections in the first operation period and counting a total number of false alarms; determining a second gain value according to the total number of false alarms; and setting the base gain as a second gain value in a second operation period that is later than the first operation period.Type: ApplicationFiled: January 12, 2018Publication date: August 23, 2018Inventors: Shen-Chung Lee, Wei-Hsuan Chang, Chifang Chang, Chenpeng Wen
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Publication number: 20170272980Abstract: This invention discloses a method for controlling a wireless communication device to transmit data packets. The method includes steps of: transmitting data packets; counting retry times of data packets in a predetermined time period and generating a result accordingly; comparing said result with a predetermined value and generating a comparison result accordingly; and reducing transmission time of data packets according to said comparison result.Type: ApplicationFiled: June 7, 2017Publication date: September 21, 2017Inventors: YU-NAN LIN, WEI-CHI LAI, SHEN-CHUNG LEE, CHUNG-YAO CHANG, WEI-HSUAN CHANG
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Patent number: 9490889Abstract: An antenna diversity and beamforming coexistence method applied to a wireless communication device which supports both a transmitter/receiver (TX/RX) antenna diversity mechanism and a beamformer/beamformee mechanism includes the following steps: determining whether a plurality of wireless link partners linked to the wireless communication device respectively support the beamformer/beamformee mechanism and generating a determination result accordingly; and determining whether to enable/disable the TX/RX antenna diversity mechanism of the wireless communication device and to enable/disable the beamformer/beamformee mechanism of the wireless communication device according to the determination result; wherein when the beamformee mechanism is determined to be disabled, controlling the wireless communication device to transmit a default value in response to a received beamforming protocol packet.Type: GrantFiled: October 16, 2014Date of Patent: November 8, 2016Assignee: Realtek Semiconductor Corp.Inventors: Shen-Chung Lee, Chien-Wei Hsin, Tsung-Hsuan Lee, Chung-Yao Chang
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Publication number: 20150189520Abstract: An antenna diversity and beamforming coexistence method applied to a wireless communication device which supports both a transmitter/receiver (TX/RX) antenna diversity mechanism and a beamformer/beamformee mechanism includes the following steps: determining whether a plurality of wireless link partners linked to the wireless communication device respectively support the beamformer/beamformee mechanism and generating a determination result accordingly; and determining whether to enable/disable the TX/RX antenna diversity mechanism of the wireless communication device and to enable/disable the beamformer/beamformee mechanism of the wireless communication device according to the determination result; wherein when the beamformee mechanism is determined to be disabled, controlling the wireless communication device to transmit a default value in response to a received beamforming protocol packet.Type: ApplicationFiled: October 16, 2014Publication date: July 2, 2015Inventors: Shen-Chung Lee, Chien-Wei Hsin, Tsung-Hsuan Lee, Chung-Yao Chang