Patents by Inventor Kai-Chun Chou
Kai-Chun Chou 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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Publication number: 20240121373Abstract: Disclosed are an image display method and a 3d display system. The method is adapted to the 3d display system including a 3d display device and includes the following steps. A first image and a second image are obtained by splitting an input image according to a 3d image format. Whether the input image is a 3D format image complying with the 3D image format is determined through a stereo matching processing performed on the first image and the second image. An image interweaving process is enabled to be performed on the input image to generate an interweaving image in response to determining that the input image is the 3D format image complying with the 3D image format, and the interweaving image is displayed via the 3D display device.Type: ApplicationFiled: May 10, 2023Publication date: April 11, 2024Applicant: Acer IncorporatedInventors: Kai-Hsiang Lin, Hung-Chun Chou, Wen-Cheng Hsu, Shih-Hao Lin, Chih-Haw Tan
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Patent number: 11119181Abstract: A method of direction finding (DF) positioning based on a simplified antenna platform format in a wireless communication network is proposed. A receiver receives antenna platform format information of a transmitter having multiple antenna elements. The antenna platform format information comprises an antenna platform format indicator, antenna platform position and orientation information, a number of antenna elements, and switching delay, phase center, and polarization information for each antenna element. The receiver receives a plurality of direction finding sounding signals transmitted from the transmitter via the multiple antenna elements. The receiver performs a DF algorithm based on the plurality of DF sounding signals and the antenna platform format information and thereby estimating a DF solution. Finally, the receiver determines its own location information based on the estimated DF solution.Type: GrantFiled: June 25, 2019Date of Patent: September 14, 2021Assignee: MEDIATEK INC.Inventors: James June-Ming Wang, Kai-Chun Chou, Ching-Hwa Yu, Hsuan-Yu Liu
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Publication number: 20190310341Abstract: A method of direction finding (DF) positioning based on a simplified antenna platform format in a wireless communication network is proposed. A receiver receives antenna platform format information of a transmitter having multiple antenna elements. The antenna platform format information comprises an antenna platform format indicator, antenna platform position and orientation information, a number of antenna elements, and switching delay, phase center, and polarization information for each antenna element. The receiver receives a plurality of direction finding sounding signals transmitted from the transmitter via the multiple antenna elements. The receiver performs a DF algorithm based on the plurality of DF sounding signals and the antenna platform format information and thereby estimating a DF solution. Finally, the receiver determines its own location information based on the estimated DF solution.Type: ApplicationFiled: June 25, 2019Publication date: October 10, 2019Inventors: James June-Ming Wang, Kai-Chun Chou, Ching-Hwa Yu, Hsuan-Yu Liu
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Patent number: 10371783Abstract: A method of direction finding (DF) positioning based on a simplified antenna platform format in a wireless communication network is proposed. A receiver receives antenna platform format information of a transmitter having multiple antenna elements. The antenna platform format information comprises an antenna platform format indicator, antenna platform position and orientation information, a number of antenna elements, and switching delay, phase center, and polarization information for each antenna element. The receiver receives a plurality of direction finding sounding signals transmitted from the transmitter via the multiple antenna elements. The receiver performs a DF algorithm based on the plurality of DF sounding signals and the antenna platform format information and thereby estimating a DF solution. Finally, the receiver determines its own location information based on the estimated DF solution.Type: GrantFiled: August 18, 2015Date of Patent: August 6, 2019Assignee: MEDIATEK INC.Inventors: James June-Ming Wang, Kai-Chun Chou, Ching-Hwa Yu, Hsuan-Yu Liu
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Patent number: 10048349Abstract: A method of direction finding (DF) positioning involving main lobe and grating lobe identification in a wireless communication network is proposed. A receiver performs DF algorithm on radio signals associated with multiple antennas over a first channel frequency and estimates a first set of DF solutions. The receiver performs DF algorithm on radio signals associated with multiple antennas over a second channel frequency and estimates a second set of DF solutions. The receiver then identifies the correct DF solution (e.g., the main lobe direction) by comparing the first set of DF solutions and the second set of DF solutions.Type: GrantFiled: August 4, 2015Date of Patent: August 14, 2018Assignee: MEDIATEK INC.Inventors: James June-Ming Wang, Kai-Chun Chou, YungPing Hsu
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Patent number: 9813189Abstract: A method of fast link adaptation for Bluetooth long-range wireless networks is provided. A data packet comprises a preamble, a first packet portion including a rate indication field, and a second packet portion including a PDU. The first packet portion is encoded using a first modulation and coding scheme with a first rate while the second packet portion is encoded using a second modulation and coding scheme with a second rate indicated by the RI field. A transmitter thus can use different MCS options to support variable data rates by adapting to channel conditions, and then uses the novel RI field to indicate the data rate to a receiver dynamically. As a result, fast link adaptation can be achieved for different applications with different rate requirements, to provide higher data rate, reduce connection time, lower power consumption, and improve link quality.Type: GrantFiled: October 2, 2015Date of Patent: November 7, 2017Assignee: MEDIATEK INC.Inventors: Kai-Chun Chou, James June-Ming Wang, Li-Chun Ko, Ching-Hwa Yu
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Publication number: 20170187487Abstract: A method to indicate a rate is proposed. In this method, a first wireless device determines a rate indicator and then transmits a packet including the rate indicator to a second wireless device. In one embodiment, the rate indicator can be determined by the first wireless device. In another embodiment, the second wireless device can suggest a rate and send it to the first wireless device.Type: ApplicationFiled: May 27, 2015Publication date: June 29, 2017Inventors: James June-Ming Wang, Kai-Chun Chou, Ching-Hwa Yu, Hsuan-Yu Liu, Chih-Shi Yee
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Patent number: 9565516Abstract: A method of fast link adaptation for Bluetooth long-range wireless networks is provided. A novel rate indication (RI) field is incorporated in a data packet to enable auto detection of rate adaptation at the receiver side. The data packet comprises a preamble, a first packet portion including the RI field, and a second packet portion including the PDU. The first packet portion is encoded with a first rate while the second packet portion is encoded with a second rate indicated by the RI field. The transmitting device raise/lower the encoding rate when the link quality is good/poor. The receiving device can provide recommended rate or link quality feedback information via an LMP message to help the transmitting device making rate adaptation decision. The transmitter can unilaterally decide the data rate for the second packet portion without receiver recommendation.Type: GrantFiled: September 8, 2015Date of Patent: February 7, 2017Assignee: MEDIATEK INC.Inventors: James June-Ming Wang, Kai-Chun Chou, Li-Chun Ko, Ching-Hwa Yu, YungPing Hsu, Chih-Shi Yee
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Publication number: 20160142177Abstract: A method of fast link adaptation for Bluetooth long-range wireless networks is provided. A data packet comprises a preamble, a first packet portion including a rate indication field, and a second packet portion including a PDU. The first packet portion is encoded using a first modulation and coding scheme with a first rate while the second packet portion is encoded using a second modulation and coding scheme with a second rate indicated by the RI field. A transmitter thus can use different MCS options to support variable data rates by adapting to channel conditions, and then uses the novel RI field to indicate the data rate to a receiver dynamically. As a result, fast link adaptation can be achieved for different applications with different rate requirements, to provide higher data rate, reduce connection time, lower power consumption, and improve link quality.Type: ApplicationFiled: October 2, 2015Publication date: May 19, 2016Inventors: Kai-Chun Chou, James June-Ming Wang, Li-Chun Ko, Ching-Hwa Yu
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Publication number: 20160135136Abstract: A method of joint position detection by a plurality of known location sensor devices is proposed in an indoor wireless local area network. A tag can query the sensors by sending a request. Timestamps of the query signal are recorded by the sensors. A known location designated sensor responds to the request and triggers a process to correct the clock offsets of other sensors. The timestamps are then corrected based on the clock offsets. The corrected timestamps are then sent to a position processor for determining the tag location.Type: ApplicationFiled: November 10, 2015Publication date: May 12, 2016Inventors: James June-Ming Wang, Ching-Hwa Yu, Kai-Chun Chou, Chih-Shi Yee
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Publication number: 20160073220Abstract: A method of fast link adaptation for Bluetooth long-range wireless networks is provided. A novel rate indication (RI) field is incorporated in a data packet to enable auto detection of rate adaptation at the receiver side. The data packet comprises a preamble, a first packet portion including the RI field, and a second packet portion including the PDU. The first packet portion is encoded with a first rate while the second packet portion is encoded with a second rate indicated by the RI field. The transmitting device raise/lower the encoding rate when the link quality is good/poor. The receiving device can provide recommended rate or link quality feedback information via an LMP message to help the transmitting device making rate adaptation decision. The transmitter can unilaterally decide the data rate for the second packet portion without receiver recommendation.Type: ApplicationFiled: September 8, 2015Publication date: March 10, 2016Inventors: James June-Ming Wang, Kai-Chun Chou, Li-Chun Ko, Ching-Hwa Yu, YungPing Hsu, Chih-Shi Yee
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Publication number: 20160047885Abstract: A method of direction finding (DF) positioning based on a simplified antenna platform format in a wireless communication network is proposed. A receiver receives antenna platform format information of a transmitter having multiple antenna elements. The antenna platform format information comprises an antenna platform format indicator, antenna platform position and orientation information, a number of antenna elements, and switching delay, phase center, and polarization information for each antenna element. The receiver receives a plurality of direction finding sounding signals transmitted from the transmitter via the multiple antenna elements. The receiver performs a DF algorithm based on the plurality of DF sounding signals and the antenna platform format information and thereby estimating a DF solution. Finally, the receiver determines its own location information based on the estimated DF solution.Type: ApplicationFiled: August 18, 2015Publication date: February 18, 2016Inventors: James June-Ming Wang, Kai-Chun Chou, Ching-Hwa Yu, Hsuan-Yu Liu
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Publication number: 20160033614Abstract: A method of direction finding (DF) positioning involving main lobe and grating lobe identification in a wireless communication network is proposed. A receiver performs DF algorithm on radio signals associated with multiple antennas over a first channel frequency and estimates a first set of DF solutions. The receiver performs DF algorithm on radio signals associated with multiple antennas over a second channel frequency and estimates a second set of DF solutions. The receiver then identifies the correct DF solution (e.g., the main lobe direction) by comparing the first set of DF solutions and the second set of DF solutions.Type: ApplicationFiled: August 4, 2015Publication date: February 4, 2016Inventors: James June-Ming Wang, Kai-Chun Chou, YungPing Hsu