Patents by Inventor Chao-Wen Hu
Chao-Wen Hu 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).
-
Patent number: 8483012Abstract: A controlling method for ultra-sound sensor is provided. The method includes the steps of measuring a distance of an obstacle, determining whether the distance is smaller than a distance threshold, and adjusting a driving voltage if the distance is smaller than the distance threshold.Type: GrantFiled: March 15, 2010Date of Patent: July 9, 2013Assignee: Lite-On It CorporationInventors: Chao-Wen Hu, Yi-Chung Lee
-
Patent number: 8422336Abstract: An operating method adapted in an ultra-sound sensor is provided. The method includes the steps of emitting an ultra-sound wave, receiving a crosstalk signal within a crosstalk measuring window, determining whether the crosstalk signal is larger than a crosstalk threshold and triggering a crosstalk application if the crosstalk signal is smaller than the crosstalk threshold.Type: GrantFiled: April 7, 2010Date of Patent: April 16, 2013Assignee: Lite-On It CorporationInventors: Yuan-Hung Liao, Chao-Wen Hu, Tzu-Nan Chen
-
Patent number: 8351296Abstract: An ultrasonic lamp control method is provided. The control method includes the following steps. The ultrasonic lamp emits a first burst, and detects whether a first echo is received within a fixed period of time after the emission of the first burst. If the first echo is received within the fixed period of time, then the ultrasonic lamp neglects the first echo and emits a second burst. The ultrasonic lamp detects whether a second echo is received within the fixed period of time after the emission of the second burst. If the second echo is received within the fixed period of time, then the ultrasonic lamp enters a control mode.Type: GrantFiled: July 12, 2010Date of Patent: January 8, 2013Assignee: Lite-On IT CorporationInventors: Chao-Wen Hu, Yi-Chung Lee
-
Patent number: 7965603Abstract: A method of adjusting a write strategy of a recordable disc comprises steps of: generating a test pattern on a power calibrating area of the recordable disc according to a first write strategy and a first write power; establishing a Pit-to-Land Inter-Symbol Interference table and a Land-to-Pit Inter-Symbol Interference table through measuring a plurality of Pits and Lands with different time lengths in the test pattern; and generating a second overdrive power by adjusting a first overdrive power of the first write strategy according to the Pit-to-Land Inter-Symbol Interference table and the Land-to-Pit Inter-Symbol Interference table.Type: GrantFiled: January 24, 2008Date of Patent: June 21, 2011Assignee: Lite-On It CorporationInventors: Ling-Feng Chen, Yi-Hsueh Lee, Shih-Kai Weng, Chao-Wen Hu
-
Publication number: 20110133653Abstract: An ultrasonic lamp control method is provided. The control method includes the following steps. The ultrasonic lamp emits a first burst, and detects whether a first echo is received within a fixed period of time after the emission of the first burst. If the first echo is received within the fixed period of time, then the ultrasonic lamp neglects the first echo and emits a second burst. The ultrasonic lamp detects whether a second echo is received within the fixed period of time after the emission of the second burst. If the second echo is received within the fixed period of time, then the ultrasonic lamp enters a control mode.Type: ApplicationFiled: July 12, 2010Publication date: June 9, 2011Applicant: LITE-ON IT CORPORATIONInventors: Chao-Wen HU, Yi-Chung Lee
-
Publication number: 20110122728Abstract: An operating method adapted in an ultra-sound sensor is provided. The method includes the steps of emitting an ultra-sound wave, receiving a crosstalk signal within a crosstalk measuring window, determining whether the crosstalk signal is larger than a crosstalk threshold and triggering a crosstalk application if the crosstalk signal is smaller than the crosstalk threshold.Type: ApplicationFiled: April 7, 2010Publication date: May 26, 2011Applicant: LITE-ON IT CORPORATIONInventors: Yuan-Hung LIAO, Chao-Wen Hu, Tzu-Nan Chen
-
Publication number: 20110122729Abstract: A controlling method for ultra-sound sensor is provided. The method includes the steps of measuring a distance of an obstacle, determining whether the distance is smaller than a distance threshold, and adjusting a driving voltage if the distance is smaller than the distance threshold.Type: ApplicationFiled: March 15, 2010Publication date: May 26, 2011Applicant: LITE-ON IT CORPORATIONInventors: Chao-Wen HU, Yi-Chung Lee
-
Patent number: 7940624Abstract: A method of adjusting a write strategy of a recordable disc comprises steps of: generating a test pattern on a power calibrating area of the recordable disc according to a first write strategy, a first write power, and a first target ? value; establishing a Pit-to-Land Inter-Symbol Interference table and a Land-to-Pit Inter-Symbol Interference table by measuring a plurality of Pits and Lands with different time lengths in the test pattern; generating an updated timing parameter set by adjusting a timing parameter set of the first write strategy according to the Pit-to-Land Inter-Symbol Interference table and the Land-to-Pit Inter-Symbol Interference table; and generating an updated target ? value according to the updated timing parameter set.Type: GrantFiled: January 24, 2008Date of Patent: May 10, 2011Assignee: Lite-On It CorporationInventors: Chao-Wen Hu, Ling-Feng Chen, Shih-Kai Weng, Yi-Hsueh Lee
-
Publication number: 20080186820Abstract: A method of adjusting a write strategy of a recordable disc comprises steps of: generating a test pattern on a power calibrating area of the recordable disc according to a first write strategy and a first write power; establishing a Pit-to-Land Inter-Symbol Interference table and a Land-to-Pit Inter-Symbol Interference table by measuring a plurality of Pits and Lands with different time lengths in the test pattern; generating an updated timing parameter set by adjusting a timing parameter set of the first write strategy according to the Pit-to-Land Inter-Symbol Interference table and the Land-to-Pit Inter-Symbol Interference table; generating an updated overdrive power by adjusting an overdrive power of the first write strategy according to the Pit-to-Land Inter-Symbol Interference table and the Land-to-Pit Inter-Symbol Interference table; and defining a second write strategy according to the updated timing parameter set and the updated overdrive power.Type: ApplicationFiled: January 24, 2008Publication date: August 7, 2008Applicant: LITE-ON IT CORP.Inventors: Shih-Kai Weng, Ling-Feng Chen, Chao-Wen Hu, Yi-Hsueh Lee
-
Publication number: 20080186813Abstract: A method of adjusting a write strategy of a recordable disc comprises steps of: generating a test pattern on a power calibrating area of the recordable disc according to a first write strategy and a first write power; establishing a Pit-to-Land Inter-Symbol Interference table and a Land-to-Pit Inter-Symbol Interference table by measuring a plurality of Pits and Lands with different time lengths in the test pattern; and generating a second timing parameter set by adjusting a first timing parameter set of the first write strategy according to the Pit-to-Land Inter-Symbol Interference table and the Land-to-Pit Inter-Symbol Interference table.Type: ApplicationFiled: January 24, 2008Publication date: August 7, 2008Applicant: LITE-ON IT CORP.Inventors: Chao-Wen Hu, Ling-Feng Chen, Shih-Kai Weng, Yi-Hsueh Lee
-
Publication number: 20080186819Abstract: A method of adjusting a write strategy of a recordable disc comprises steps of: generating a test pattern on a power calibrating area of the recordable disc according to a first write strategy, a first write power, and a first target ? value; establishing a Pit-to-Land Inter-Symbol Interference table and a Land-to-Pit Inter-Symbol Interference table by measuring a plurality of Pits and Lands with different time lengths in the test pattern; generating an updated timing parameter set by adjusting a timing parameter set of the first write strategy according to the Pit-to-Land Inter-Symbol Interference table and the Land-to-Pit Inter-Symbol Interference table; and generating an updated target ? value according to the updated timing parameter set.Type: ApplicationFiled: January 24, 2008Publication date: August 7, 2008Applicant: LITE-ON IT CORP.Inventors: Chao-Wen Hu, Ling-Feng Chen, Shih-Kai Weng, Yi-Hsueh Lee
-
Publication number: 20080186818Abstract: A method of adjusting a write strategy of a recordable disc comprises steps of: generating a test pattern on a power calibrating area of the recordable disc according to a first write strategy and a first write power; establishing a Pit-to-Land Inter-Symbol Interference table and a Land-to-Pit Inter-Symbol Interference table through measuring a plurality of Pits and Lands with different time lengths in the test pattern; and generating a second overdrive power by adjusting a first overdrive power of the first write strategy according to the Pit-to-Land Inter-Symbol Interference table and the Land-to-Pit Inter-Symbol Interference table.Type: ApplicationFiled: January 24, 2008Publication date: August 7, 2008Applicant: LITE-ON IT CORP.Inventors: Ling-Feng Chen, Yi-Hsueh Lee, Shih-Kai Weng, Chao-Wen Hu