Patents by Inventor Tien-Chia Liu
Tien-Chia Liu 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: 20240094052Abstract: An optical module is disclosed. The optical module includes a carrier, an optical emitter disposed over the carrier, and a monitor disposed over the carrier and configured to adjust a property of a first light emitted from the optical emitter.Type: ApplicationFiled: September 20, 2022Publication date: March 21, 2024Applicant: Advanced Semiconductor Engineering, Inc.Inventors: Kuo Sin HUANG, Tien-Chia LIU, Ko-Fan TSAI, Cheng-Te CHOU, Yan-Te CHOU
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Patent number: 11822085Abstract: The present disclosure provides an optical adaptive device and a wearable device. The optical adaptive device includes a carrier, a first light adjusting element, and a second light adjusting element. The first light adjusting element is in or on the carrier and configured to focus a first light from a first article on a visual area. The second light adjusting element is in or on the carrier and configured to focus a second light from a second article on the visual area. The second article is further away from the area than the first article.Type: GrantFiled: September 3, 2021Date of Patent: November 21, 2023Assignee: ADVANCED SEMICONDUCTOR ENGINEERING, INC.Inventors: Ko-Fan Tsai, Tien-Chia Liu, Kuo Sin Huang, Cheng-Te Chou
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Publication number: 20230074105Abstract: The present disclosure provides an optical adaptive device and a wearable device. The optical adaptive device includes a carrier, a first light adjusting element, and a second light adjusting element. The first light adjusting element is in or on the carrier and configured to focus a first light from a first article on a visual area. The second light adjusting element is in or on the carrier and configured to focus a second light from a second article on the visual area. The second article is further away from the area than the first article.Type: ApplicationFiled: September 3, 2021Publication date: March 9, 2023Applicant: Advanced Semiconductor Engineering, Inc.Inventors: Ko-Fan TSAI, Tien-Chia LIU, Kuo Sin HUANG, Cheng-Te CHOU
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Patent number: 10775233Abstract: An optical sensing module including a lens and a sensing device is provided. The lens has an optical axis. The sensing device is disposed under the lens, wherein the sensing device is to receive an object beam passing the lens. The optical axis of the lens deviates from a geometric center of the sensing device. An optical sensing module including a prism film, a sensing device and a lens is further provided. The prism film has a plurality of prisms. The sensing device is disposed under the prism film, wherein the sensing device is to receive an object beam sequentially passing the prism film and the lens. The lens is disposed between the prism film and the sensing device.Type: GrantFiled: November 12, 2018Date of Patent: September 15, 2020Assignee: PIXART IMAGING INC.Inventors: Hui-Hsuan Chen, Jia-Hong Huang, Tien-Chia Liu
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Patent number: 10440280Abstract: A system includes: (1) a sensor module configured to detect an object at a predetermined distance and obtain position information of the object relative to the sensor module; (2) a zooming module configured to move at an angle and capture an image of the object; and (3) a controller connected to the sensor module and the zooming module. The controller is configured to derive the angle in accordance with the predetermined distance and the position information of the object, and the controller is configured to control the zooming module to move in accordance with the angle.Type: GrantFiled: September 21, 2017Date of Patent: October 8, 2019Assignee: ADVANCED SEMICONDUCTOR ENGINEERING, INC.Inventors: Tien-Chia Liu, Nien Chu Wang, Ping-Yen Kuo
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Publication number: 20190089904Abstract: A system includes: (1) a sensor module configured to detect an object at a predetermined distance and obtain position information of the object relative to the sensor module; (2) a zooming module configured to move at an angle and capture an image of the object; and (3) a controller connected to the sensor module and the zooming module. The controller is configured to derive the angle in accordance with the predetermined distance and the position information of the object, and the controller is configured to control the zooming module to move in accordance with the angle.Type: ApplicationFiled: September 21, 2017Publication date: March 21, 2019Applicant: Advanced Semiconductor Engineering, Inc.Inventors: Tien-Chia LIU, Nien Chu WANG, Ping-Yen KUO
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Publication number: 20190078931Abstract: An optical sensing module including a lens and a sensing device is provided. The lens has an optical axis. The sensing device is disposed under the lens, wherein the sensing device is to receive an object beam passing the lens. The optical axis of the lens deviates from a geometric center of the sensing device. An optical sensing module including a prism film, a sensing device and a lens is further provided. The prism film has a plurality of prisms. The sensing device is disposed under the prism film, wherein the sensing device is to receive an object beam sequentially passing the prism film and the lens. The lens is disposed between the prism film and the sensing device.Type: ApplicationFiled: November 12, 2018Publication date: March 14, 2019Inventors: HUI-HSUAN CHEN, JIA-HONG HUANG, TIEN-CHIA LIU
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Patent number: 10168205Abstract: An optical sensing module including a lens and a sensing device is provided. The lens has an optical axis. The sensing device is disposed under the lens, wherein the sensing device is to receive an object beam passing the lens. The optical axis of the lens deviates from a geometric center of the sensing device. An optical sensing module including a prism film, a sensing device and a lens is further provided. The prism film has a plurality of prisms. The sensing device is disposed under the prism film, wherein the sensing device is to receive an object beam sequentially passing the prism film and the lens. The lens is disposed between the prism film and the sensing device.Type: GrantFiled: May 12, 2014Date of Patent: January 1, 2019Assignee: PIXART IMAGING INC.Inventors: Hui-Hsuan Chen, Jia-Hong Huang, Tien-Chia Liu
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Patent number: 9696853Abstract: An optical touch apparatus includes a first light source, a second light source, a light guide device, a light reflecting device and an image sensing module. The first light source emits first light beam which travels within the light guide device and is reflective by an object close to or in contact with a surface of the light guide device to become a first image light beam. The first image light beam is reflected by a light reflecting device. The image sensing module receives the first image light beam. The second light source emits a second light beam, wherein when the optical touch apparatus moves on a working surface, the second light beam is reflective by the working surface to form a second image light beam which is received by the same image sensing module.Type: GrantFiled: July 10, 2015Date of Patent: July 4, 2017Assignee: PIXART IMAGING INCORPORATION, R.O.C.Inventors: Ming-Tsan Kao, Hui-Hsuan Chen, Tien-Chia Liu, Hsin-Chia Chen
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Patent number: 9588597Abstract: An optical pointing device for detecting the direction of the user's finger is provided. The optical pointing device comprises a cover, a light source and a sensor. The cover comprises a press portion with a first surface and a second surface opposite the first surface, as well as a side wall extending downwards from the periphery of the second surface. The light source projects a main beam onto the press portion of the cover. The main beam then forms a first beam passing through the press portion and a second beam reflected by the second surface. The sensor is adapted to receive the second beam reflected by the second surface, and detect the second beam by an algorithm to output the first displacement position. In addition, the light source and the sensor are covered by the cover, while the side wall is a flexible side wall.Type: GrantFiled: October 30, 2013Date of Patent: March 7, 2017Assignee: PIXART IMAGING INC.Inventors: Hui-Hsuan Chen, Wen-Yen Su, Tien-Chia Liu
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Patent number: 9348071Abstract: There is provided a miniaturized optical system including a protection cover, a light source, an image sensor and at least one interference film. The protection cover has a first surface and a second surface. The light source and the image sensor are disposed opposite to the first surface of the protection cover. The interference film is disposed between the light source and the protection cover to allow the light source to form a predetermined light shape in front of the second surface of the protection cover and/or disposed between the image sensor and the protection cover to allow the image sensor to receive light of a predetermined range in front of the second surface of the protection cover.Type: GrantFiled: August 23, 2013Date of Patent: May 24, 2016Assignee: PIXART IMAGING INC.Inventors: Hui-Hsuan Chen, Tien-Chia Liu, Wen-Yen Su
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Patent number: 9269842Abstract: There is provided an optical mechanism including a substrate, an image chip, a light source and a securing member. The image chip and the light source are attached to the substrate. The securing member is secured to the substrate and includes a first containing space for accommodating the light source, a second containing space for accommodating the image chip and a blocking region between the first containing space and the second containing space.Type: GrantFiled: November 13, 2012Date of Patent: February 23, 2016Assignee: PIXART IMAGING INCInventors: Hui-Hsuan Chen, Tien-Chia Liu
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Patent number: 9263604Abstract: There is provided an optical mechanism including a substrate, an image sensor chip, a light source, a blocking member and a securing member. The image sensor chip is attached to the substrate and has an active area. The light source is attached to the substrate. The blocking member covers the image sensor chip and has an opening to expose at least the active area of the image sensor chip. The securing member fits on the blocking member to secure the blocking member to the substrate.Type: GrantFiled: November 13, 2012Date of Patent: February 16, 2016Assignee: PIXART IMAGING INC.Inventors: Hui-Hsuan Chen, Tien-Chia Liu, Chia-Hsin Yu
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Publication number: 20150317035Abstract: An optical touch apparatus includes a first light source, a second light source, a light guide device, a light reflecting device and an image sensing module. The first light source emits first light beam which travels within the light guide device and is reflective by an object close to or in contact with a surface of the light guide device to become a first image light beam. The first image light beam is reflected by a light reflecting device. The image sensing module receives the first image light beam. The second light source emits a second light beam, wherein when the optical touch apparatus moves on a working surface, the second light beam is reflective by the working surface to form a second image light beam which is received by the same image sensing module.Type: ApplicationFiled: July 10, 2015Publication date: November 5, 2015Applicant: PixArt Imaging IncorporationInventors: Ming-Tsan Kao, Hui-Hsuan Chen, Tien-Chia Liu, Hsin-Chia Chen
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Patent number: 9122350Abstract: An optical touch apparatus includes a first light source, a second light source, a light guide device, a light reflecting device and an image sensing module. The first light source emits first light beam which travels within the light guide device and is reflective by an object close to or in contact with a surface of the light guide device to become a first image light beam. The first image light beam is reflected by a light reflecting device. The image sensing module receives the first image light beam. The second light source emits a second light beam, wherein when the optical touch apparatus moves on a working surface, the second light beam is reflective by the working surface to form a second image light beam which is received by the same image sensing module.Type: GrantFiled: February 25, 2013Date of Patent: September 1, 2015Assignee: PIXART IMAGING INCORPORATION, R.O.C.Inventors: Ming-Tsan Kao, Hui-Hsuan Chen, Tien-Chia Liu, Hsin-Chia Chen
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Patent number: 8957849Abstract: An optical scrolling module includes a prism, a light source, an image sensor and a first condenser. The prism is disposed at an opening of an upper shell of a mouse and has a light incident surface, a reflective surface, a contact surface and a light emitting surface. The contact and light incident surfaces are respectively connected between the reflective and light emitting surfaces. The contact surface is exposed by the opening. A light beam from the light source is transmitted to the contact surface via the light incident and reflective surfaces. When an object with a pattern structure puts on the contact surface, the light beam is scattered and a portion of the light beam is transmitted to the image sensor via the first condenser. When the object is removed from the contact surface, the light beam is reflected to the light emitting surface by the contact surface.Type: GrantFiled: February 21, 2012Date of Patent: February 17, 2015Assignee: Pixart Imaging Inc.Inventors: Hui-Hsuan Chen, Hung-Ching Lai, Tien-Chia Liu
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Publication number: 20150008329Abstract: An optical sensing module including a lens and a sensing device is provided. The lens has an optical axis. The sensing device is disposed under the lens, wherein the sensing device is to receive an object beam passing the lens. The optical axis of the lens deviates from a geometric center of the sensing device. An optical sensing module including a prism film, a sensing device and a lens is further provided. The prism film has a plurality of prisms. The sensing device is disposed under the prism film, wherein the sensing device is to receive an object beam sequentially passing the prism film and the lens. The lens is disposed between the prism film and the sensing device.Type: ApplicationFiled: May 12, 2014Publication date: January 8, 2015Applicant: PIXART IMAGING INC.Inventors: HUI-HSUAN CHEN, JIA-HONG HUANG, TIEN-CHIA LIU
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Patent number: 8890056Abstract: A light guide module is disclosed in the present invention. The light guide module includes a light guide plate, and an optical reflecting structure disposed on a bottom of the light guide plate. A beam is transmitted into the light guide plate through its side surface. Total internal reflection characters of the light guide plate is interfered by the optical reflecting structure, so that the beam can emit out of the light guide plate through a light emitting surface of the light guide plate. The optical reflecting structure includes a first reflecting layer disposed on the bottom, and a second reflecting layer formed above the first reflecting layer. The beam is absorbed by the first reflecting layer. The beam is reflected out of the light emitting surface via the second reflecting layer, and the second reflecting layer is between the first reflecting layer and the light guide plate.Type: GrantFiled: November 29, 2012Date of Patent: November 18, 2014Assignee: PixArt Imaging Inc.Inventors: Tien-Chia Liu, Hui-Hsuan Chen
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Publication number: 20140209783Abstract: An optical pointing device for detecting the direction of the user's finger is provided. The optical pointing device comprises a cover, a light source and a sensor. The cover comprises a press portion with a first surface and a second surface opposite the first surface, as well as a side wall extending downwards from the periphery of the second surface. The light source projects a main beam onto the press portion of the cover. The main beam then forms a first beam passing through the press portion and a second beam reflected by the second surface. The sensor is adapted to receive the second beam reflected by the second surface, and detect the second beam by an algorithm to output the first displacement position. In addition, the light source and the sensor are covered by the cover, while the side wall is a flexible side wall.Type: ApplicationFiled: October 30, 2013Publication date: July 31, 2014Applicant: PIXART IMAGING INC.Inventors: Hui-Hsuan CHEN, Wen-Yen SU, Tien-Chia LIU
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Publication number: 20140160013Abstract: There is provided a switching device including an image sensor, a processing unit and a transmission unit. The image sensor successively captures image frames. The processing unit is configured to generate a control signal when sequentially recognizing an open hand gesture and a closed fist gesture or sequentially recognizing a closed fist gesture and an open hand gesture according to the image frames within a predetermined time interval. The transmission unit is configured to transmit the control signal to an electronic device.Type: ApplicationFiled: November 26, 2013Publication date: June 12, 2014Applicant: Pixart Imaging Inc.Inventor: TIEN-CHIA LIU