Patents by Inventor Cheng-Hsin Chang
Cheng-Hsin Chang 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: 10937120Abstract: A video processing system includes a main chip and a processing chip. The main chip receives first data. The processing chip is coupled to the main chip, and receives second data and to perform a video processing on at least one of the first data transmitted from the main chip and the second data, in order to drive a display panel. First video carried on the first data or second video on the second data has a first resolution, and the first resolution is at least 8K ultra high definition.Type: GrantFiled: February 28, 2020Date of Patent: March 2, 2021Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Yi-Shu Chang, Cheng-Hsin Chang, Hsu-Jung Tung, Chun-Hsing Hsieh, Sen-Huang Tang
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Publication number: 20200202483Abstract: A video processing system includes a main chip and a processing chip. The main chip receives first data. The processing chip is coupled to the main chip, and receives second data and to perform a video processing on at least one of the first data transmitted from the main chip and the second data, in order to drive a display panel. First video carried on the first data or second video on the second data has a first resolution, and the first resolution is at least 8K ultra high definition.Type: ApplicationFiled: February 28, 2020Publication date: June 25, 2020Inventors: Yi-Shu Chang, Cheng-Hsin Chang, Hsu-Jung Tung, Chun-Hsing Hsieh, Sen-Huang Tang
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Patent number: 10680642Abstract: A data processing system comprising a decompression circuit, configured to decompress compressed data to generate decompressed data. The decompression circuit comprises: a request transmitting terminal, configured to transmit a data receiving request indicating the decompressed data to be received; a valid information transmitting terminal, configured to transmit valid information indicating which part of the decompressed data is valid; and a data transmitting terminal, configured to transmit the decompressed data. An image processing circuit corresponds to the decompression circuit is also disclosed.Type: GrantFiled: May 8, 2019Date of Patent: June 9, 2020Assignee: Realtek Semiconductor Corp.Inventor: Cheng-Hsin Chang
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Patent number: 10659725Abstract: The present invention discloses an image processing device and an image processing method. The image processing method includes steps of: referring to multiple frames or an auxiliary data associated with the frames to determine whether the frames contain substantially the same frames; selecting the frames according to whether the frames contain substantially the same frames to generate multiple selected frames; and performing video processing on the selected frames. When the frames do not contain substantially the same frames, the selected frames are the same as the frames, and when the frames contain substantially the same frames, the selected frames are part of the frames.Type: GrantFiled: March 11, 2019Date of Patent: May 19, 2020Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Chia-Wei Yu, Cheng-Hsin Chang, Chun-Hsing Hsieh, Chi-Hsiung Cheng
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Patent number: 10643298Abstract: A video processing system includes a main chip and a processing chip. The main chip receives first data. The processing chip is coupled to the main chip, and receives second data and to perform a video processing on at least one of the first data transmitted from the main chip and the second data, in order to drive a display panel. First video carried on the first data or second video on the second data has a first resolution, and the first resolution is at least 8K ultra high definition.Type: GrantFiled: September 25, 2018Date of Patent: May 5, 2020Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Yi-Shu Chang, Cheng-Hsin Chang, Hsu-Jung Tung, Chun-Hsing Hsieh, Sen-Huang Tang
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Publication number: 20200036388Abstract: A data processing system comprising a decompression circuit, configured to decompress compressed data to generate decompressed data. The decompression circuit comprises: a request transmitting terminal, configured to transmit a data receiving request indicating the decompressed data to be received; a valid information transmitting terminal, configured to transmit valid information indicating which part of the decompressed data is valid; and a data transmitting terminal, configured to transmit the decompressed data. An image processing circuit corresponds to the decompression circuit is also disclosed.Type: ApplicationFiled: May 8, 2019Publication date: January 30, 2020Inventor: Cheng-Hsin Chang
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Publication number: 20190289256Abstract: The present invention discloses an image processing device and an image processing method. The image processing method includes steps of: referring to multiple frames or an auxiliary data associated with the frames to determine whether the frames contain substantially the same frames; selecting the frames according to whether the frames contain substantially the same frames to generate multiple selected frames; and performing video processing on the selected frames. When the frames do not contain substantially the same frames, the selected frames are the same as the frames, and when the frames contain substantially the same frames, the selected frames are part of the frames.Type: ApplicationFiled: March 11, 2019Publication date: September 19, 2019Inventors: CHIA-WEI YU, CHENG-HSIN CHANG, CHUN-HSING HSIEH, CHI-HSIUNG CHENG
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Publication number: 20190251651Abstract: A video processing system includes a main chip and a processing chip. The main chip receives first data. The processing chip is coupled to the main chip, and receives second data and to perform a video processing on at least one of the first data transmitted from the main chip and the second data, in order to drive a display panel. First video carried on the first data or second video on the second data has a first resolution, and the first resolution is at least 8K ultra high definition.Type: ApplicationFiled: September 25, 2018Publication date: August 15, 2019Inventors: Yi-Shu CHANG, Cheng-Hsin Chang, Hsu-Jung Tung, Chun-Hsing Hsieh, Sen-Huang Tang
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Patent number: 10003941Abstract: A wireless network connection method for an electronic device is provided, in which a first signal is transmitted to additional electronic device and is utilized to identify the electronic device. When the additional electronic device identifies the electronic device through the first signal, it establishes wireless communication between the electronic device and the additional electronic device. A second signal is transmitted to the additional electronic device. The second signal is an audio signal to instruct the additional electronic device to maintain the wireless communication.Type: GrantFiled: July 19, 2017Date of Patent: June 19, 2018Assignee: ACER INCORPORATEDInventors: Wen-Cheng Hsu, Hung-Chih Yu, Chi-Hung Chang, Shih-Hao Lin, Chia-Hsun Lee, Kai-Ping Chang, Cheng-Hsin Chang, Wen-Ping Chang
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Publication number: 20170318441Abstract: A wireless network connection method for an electronic device is provided, in which a first signal is transmitted to additional electronic device and is utilized to identify the electronic device. When the additional electronic device identifies the electronic device through the first signal, it establishes wireless communication between the electronic device and the additional electronic device. A second signal is transmitted to the additional electronic device. The second signal is an audio signal to instruct the additional electronic device to maintain the wireless communication.Type: ApplicationFiled: July 19, 2017Publication date: November 2, 2017Inventors: Wen-Cheng HSU, Hung-Chih YU, Chi-Hung CHANG, Shih-Hao LIN, Chia-Hsun LEE, Kai-Ping CHANG, Cheng-Hsin CHANG, Wen-Ping CHANG
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Patent number: 9749822Abstract: A wireless network connection method for an electronic device is provided, in which a first signal is transmitted to additional electronic device and is utilized to identify the electronic device. When the additional electronic device identifies the electronic device through the first signal, it establishes wireless communication between the electronic device and the additional electronic device. A second signal is transmitted to the additional electronic device. The second signal is an audio signal to instruct the additional electronic device to maintain the wireless communication.Type: GrantFiled: March 20, 2015Date of Patent: August 29, 2017Assignee: ACER INCORPORATEDInventors: Wen-Cheng Hsu, Hung-Chih Yu, Chi-Hung Chang, Shih-Hao Lin, Chia-Hsun Lee, Kai-Ping Chang, Cheng-Hsin Chang, Wen-Ping Chang
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Patent number: 9490915Abstract: A sound transmitting apparatus, a sound receiving apparatus and a method for transferring data from the sound transmitting apparatus to the sound receiving apparatus using a sound signal are provided. In the method, a plurality of basic tones and control tones are defined by using a plurality of sound frequencies within a sound frequency range, in which each basic tone corresponds a character and each control tone corresponds an order of the basic tones. A plurality of characters in the data to be transferred are transformed into corresponding basic tones and the corresponding control tone is determined according to the order of the characters. The basic tones and the control tone are transmitted to the sound receiving apparatus. The sound receiving apparatus transforms the received basic tones into the characters and determines the order of the characters according to the received control tone, so as to recover the data.Type: GrantFiled: November 25, 2014Date of Patent: November 8, 2016Assignee: Acer IncorporatedInventors: Cheng-Hsin Chang, Wen-Cheng Hsu
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Patent number: 9430812Abstract: The present invention discloses an image processing method comprising: using an image output device to generate a scale-down image; using the image output device to generate a plurality of divided images according to the scale-down image; using the image output device to encode the plurality of divided images to thereby generate a plurality of encoded images; having the image output device output the plurality of encoded images into an image reception device through a transmission interface; using the image reception device to decode the plurality of encoded images to thereby recover the plurality of divided images; using the image reception device to generate a combined image according to the plurality of divided images; and using the image reception device to generate a display image according to the combined image, in which the size of the display image is larger than the size of the combined image.Type: GrantFiled: September 4, 2013Date of Patent: August 30, 2016Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventor: Cheng Hsin Chang
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Patent number: 9355604Abstract: An overdriving control method includes: receiving an input image; determining whether the input image is a moving image or a still image, and generating a determining signal; dynamically using image compression process according to the determining signal; and dynamically using overdriving process according to the determining signal.Type: GrantFiled: January 8, 2014Date of Patent: May 31, 2016Assignee: Realtek Semiconductor Corp.Inventor: Cheng-Hsin Chang
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Publication number: 20150350268Abstract: An electronic device and a method for data copy between electronic devices are provided, and the method includes following steps. Data is added to a clipboard of an electronic device. It is determined whether the electronic device is connected to a network associated to a network unit, so as to determine to use the network unit or a wireless transmission unit to transmit the data. If the electronic device is not connected to the network, the data is directly transmitted to another electronic device by the wireless transmission unit, such that the data is added to another clipboard of another electronic device. If the electronic device is connected to the network, the data is indirectly transmitted to the another electronic device by the network unit via a sever in the network, such that the data is added to the another clipboard of the another electronic device.Type: ApplicationFiled: April 17, 2015Publication date: December 3, 2015Inventors: Kai-Ping Chang, Wen-Cheng Hsu, Cheng-Hsin Chang, Hao-Ting Chang, Wei-Tsun Wang, Wen-Ping Chang, Po-Hsiang Wang
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Publication number: 20150312737Abstract: A wireless network connection method for an electronic device is provided, in which a first signal is transmitted to additional electronic device and is utilized to identify the electronic device. When the additional electronic device identifies the electronic device through the first signal, it establishes wireless communication between the electronic device and the additional electronic device. A second signal is transmitted to the additional electronic device. The second signal is an audio signal to instruct the additional electronic device to maintain the wireless communication.Type: ApplicationFiled: March 20, 2015Publication date: October 29, 2015Inventors: Wen-Cheng HSU, Hung-Chih YU, Chi-Hung CHANG, Shih-Hao LIN, Chia-Hsun LEE, Kai-Ping CHANG, Cheng-Hsin CHANG, Wen-Ping CHANG
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Publication number: 20150270908Abstract: A sound transmitting apparatus, a sound receiving apparatus and a method for transferring data from the sound transmitting apparatus to the sound receiving apparatus using a sound signal are provided. In the method, a plurality of basic tones and control tones are defined by using a plurality of sound frequencies within a sound frequency range, in which each basic tone corresponds a character and each control tone corresponds an order of the basic tones. A plurality of characters in the data to be transferred are transformed into corresponding basic tones and the corresponding control tone is determined according to the order of the characters. The basic tones and the control tone are transmitted to the sound receiving apparatus. The sound receiving apparatus transforms the received basic tones into the characters and determines the order of the characters according to the received control tone, so as to recover the data.Type: ApplicationFiled: November 25, 2014Publication date: September 24, 2015Inventors: Cheng-Hsin Chang, Wen-Cheng Hsu
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Patent number: 8842905Abstract: A 2D to 3D image conversion apparatus includes a data queue, a conversion unit and an offset calculation unit. The data queue receives and temporarily stores an input data value corresponding to a current pixel. The conversion unit outputs a current offset table corresponding to a current depth parameter of the current pixel. The current offset table includes (m+1) reference offsets corresponding to the current pixel and neighboring m pixels. The offset calculation unit selects one of the reference offsets corresponding to the current pixel in the current offset table and multiple previous offset tables as a data offset corresponding to the current pixel. The data queue selects and outputs an output data value corresponding to the current pixel according to an integer part of the data offset and the input data value.Type: GrantFiled: June 14, 2012Date of Patent: September 23, 2014Assignee: Realtek Semiconductor Corp.Inventors: Chun-Hsing Hsieh, Hao-Ying Cheng, Chia-Wei Yu, Cheng-Hsin Chang
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Publication number: 20140192032Abstract: An overdriving control method includes: receiving an input image; determining whether the input image is a moving image or a still image, and generating a determining signal; dynamically using image compression process according to the determining signal; and dynamically using overdriving process according to the determining signal.Type: ApplicationFiled: January 8, 2014Publication date: July 10, 2014Applicant: Realtek Semiconductor Corp.Inventor: Cheng-Hsin Chang
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Publication number: 20140071169Abstract: The present invention discloses an image processing method comprising: using an image output device to generate a scale-down image; using the image output device to generate a plurality of divided images according to the scale-down image; using the image output device to encode the plurality of divided images to thereby generate a plurality of encoded images; having the image output device output the plurality of encoded images into an image reception device through a transmission interface; using the image reception device to decode the plurality of encoded images to thereby recover the plurality of divided images; using the image reception device to generate a combined image according to the plurality of divided images; and using the image reception device to generate a display image according to the combined image, in which the size of the display image is larger than the size of the combined image.Type: ApplicationFiled: September 4, 2013Publication date: March 13, 2014Applicant: REALTEK SEMICONDUCTOR CORPORATIONInventor: Cheng Hsin Chang