Patents by Inventor Po-Jen Shen
Po-Jen Shen 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: 20240134147Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion used for connecting an optical element, a fixed portion, and a driving assembly used for driving the movable portion to move relative to the fixed portion. The movable portion is movable relative to the fixed portion.Type: ApplicationFiled: October 19, 2023Publication date: April 25, 2024Inventors: Po-Xiang ZHUANG, Chen-Hung CHAO, Wei-Jhe SHEN, Shou-Jen LIU, Kun-Shih LIN, Yi-Ho CHEN
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Publication number: 20240094498Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion used for connecting an optical element, a fixed portion, and a driving assembly used for driving the movable portion to move relative to the fixed portion. The movable portion is movable relative to the fixed portion.Type: ApplicationFiled: September 14, 2023Publication date: March 21, 2024Inventors: Po-Xiang ZHUANG, Chen-Hung CHAO, Wei-Jhe SHEN, Shou-Jen LIU, Kun-Shih LIN, Yi-Ho CHEN
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Publication number: 20240085634Abstract: An optical fiber transmission device includes a substrate, a photonic integrated circuit, and an optical fiber assembly. The photonic integrated circuit is disposed on an area of the substrate. The substrate has a protruding structure at an interface with an edge of the photonic integrated circuit. The optical fiber assembly includes an optical fiber and a ferrule that sleeves the optical fiber. The protruding structure of the substrate is configured to abut against the ferrule to limit the position of the optical fiber assembly in a vertical direction of the substrate, such that the protruding structure is a stopper for the optical fiber assembly in the vertical direction.Type: ApplicationFiled: September 14, 2023Publication date: March 14, 2024Applicant: AuthenX Inc.Inventors: Chun-Chiang YEN, Po-Kuan SHEN, Sheng-Fu LIN, Yi-Ting LU, Jun-Rong CHEN, Jenq-Yang CHANG, Mao-Jen WU
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Publication number: 20240089000Abstract: An optical fiber network device includes a fiber and a photonic integrated circuit. Fiber receives a first optical signal and transmits a second optical signal. A first wavelength of first optical signal is different from a second wavelength of second optical signal. Photonic integrated circuit includes a laser chip, a photodetector, a wavelength division multiplexing coupler, a first optical modulation element and a second optical modulation element. Laser chip is disposed on photonic integrated circuit, and is configured to generate first optical signal. Photodetector detects second optical signal. Wavelength division multiplexing coupler is configured to couple first optical signal to fiber, and receives second optical signal. First optical modulation element is coupled to wavelength division multiplexing coupler and laser chip, and is configured to modulate first optical signal.Type: ApplicationFiled: September 14, 2023Publication date: March 14, 2024Applicant: AuthenX Inc.Inventors: Sheng-Fu LIN, Po-Kuan SHEN, Chun-Chiang YEN, Yi-Ting LU, Jun-Rong CHEN, Jenq-Yang CHANG, Mao-Jen WU
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Patent number: 11927799Abstract: A data transmission system is disclosed. The data transmission system includes at least one signal processing device, at least one conversion device, at least one antenna device, and at least one flexible printed circuit board. The at least one signal processing device is configured to generate or receive at least one data. The at least one conversion device is configured to transform between the at least one data and an optical signal. The at least one antenna device is configured to obtain the at least one data according to the optical signal, and configured to receive or transmit the at least one data wirelessly. The at least one flexible printed circuit board includes at least one conductive layer and at least one optical waveguide layer. The at least one optical waveguide layer is configured to transmit the optical signal.Type: GrantFiled: December 31, 2020Date of Patent: March 12, 2024Inventors: Po-Kuan Shen, Chun-Chiang Yen, Chiu-Lin Yu, Kai-Lun Han, Jenq-Yang Chang, Mao-Jen Wu, Chao-Chieh Hsu
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Publication number: 20240077744Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion used for connecting an optical element, a fixed portion, and a driving assembly used for driving the movable portion to move relative to the fixed portion. The movable portion is movable relative to the fixed portion.Type: ApplicationFiled: September 7, 2023Publication date: March 7, 2024Inventors: Po-Xiang ZHUANG, Chen-Hung CHAO, Wei-Jhe SHEN, Shou-Jen LIU, Kun-Shih LIN, Yi-Ho CHEN
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Publication number: 20240077697Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion used for connecting an optical element, a fixed portion, and a driving assembly used for driving the movable portion to move relative to the fixed portion. The movable portion is movable relative to the fixed portion.Type: ApplicationFiled: September 7, 2023Publication date: March 7, 2024Inventors: Po-Xiang ZHUANG, Chen-Hung CHAO, Wei-Jhe SHEN, Shou-Jen LIU, Kun-Shih LIN, Yi-Ho CHEN
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Patent number: 7333413Abstract: A method for controlling the rotation speed of an optical storage device. In the first mode, a first signal is produced, and in the second mode, a second signal is produced. In one mode, a first pulse of a first voltage and a second pulse of a second voltage are sent to the motor, which causes the motor to produce a first armature current and a second armature current. In another mode, a DC signal of a third voltage is produced, which causes the motor to produce a third armature current. The armature currents are detected, and test voltages are outputted. The first and second voltages, and the first and second test voltages are used to find a motor coefficient. The third voltage, the motor coefficient, and the third test voltage are used to calculate a motor rotation speed. The calculated speed is used to control the real motor speed.Type: GrantFiled: April 26, 2006Date of Patent: February 19, 2008Assignee: MediaTek Inc.Inventor: Po-Jen Shen
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Patent number: 7116622Abstract: A method for controlling the rotation speed of an optical storage device. In the first mode, a first signal is produced, and in the second mode, a second signal is produced. In one mode, a first pulse of a first voltage and a second pulse of a second voltage are sent to the motor, which causes the motor to produce a first armature current and a second armature current. In another mode, a DC signal of a third voltage is produced, which causes the motor to produce a third armature current. The armature currents are detected, and test voltages are outputted. The first and second voltages, and the first and second test voltages are used to find a motor coefficient. The third voltage, the motor coefficient, and the third test voltage are used to calculate a motor rotation speed. The calculated speed is used to control the real motor speed.Type: GrantFiled: June 18, 2003Date of Patent: October 3, 2006Assignee: MediaTek Inc.Inventor: Po-Jen Shen
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Publication number: 20060203666Abstract: A method for controlling the rotation speed of an optical storage device. In the first mode, a first signal is produced, and in the second mode, a second signal is produced. In one mode, a first pulse of a first voltage and a second pulse of a second voltage are sent to the motor, which causes the motor to produce a first armature current and a second armature current. In another mode, a DC signal of a third voltage is produced, which causes the motor to produce a third armature current. The armature currents are detected, and test voltages are outputted. The first and second voltages, and the first and second test voltages are used to find a motor coefficient. The third voltage, the motor coefficient, and the third test voltage are used to calculate a motor rotation speed. The calculated speed is used to control the real motor speed.Type: ApplicationFiled: April 26, 2006Publication date: September 14, 2006Inventor: Po-Jen Shen
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Publication number: 20050286369Abstract: A method for extracting information in a data signal read from an area of an optical disc being recorded by a laser cutting process performed after the fabrication of the optical disc includes providing a first clock signal; sampling the data signal according to the first clock signal to thereby obtain a plurality of edge intervals expressed in cycles of the first clock, each edge interval corresponding to an interval between succeeding leading edges of the data signal; determining a leading edge interval according to the plurality of edge intervals; calculating a recovery period for data of the data signal being the leading edge interval divided by a division factor; and extracting the information in the data signal according to the recovery period.Type: ApplicationFiled: August 15, 2005Publication date: December 29, 2005Inventors: Chung-Tien Yen, Po-Jen Shen
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Patent number: 6950379Abstract: A method for extracting information in a data signal stored on an optical disc. The information is stored in a plurality of channel bits. The method includes initializing a recovery period of a recovery clock to a predetermined value expressed in cycles of a first clock; sampling the data signal with the first clock; obtaining a leading edge time period expressed in cycles of the first clock of a pattern of bits from the sampled data in which at least a first bit has a first binary value, followed by a plurality of bits having a second binary value, and ending with a last bit having the first binary value, wherein the first and second binary values are not equal; updating the recovery period of the recovery clock to be equal to a new maximum period that is the leading edge time period divided by a division factor; extracting the information in the data signal based on the newest recovery period of the recovery clock; and detecting a predetermined code in the data signal.Type: GrantFiled: March 28, 2003Date of Patent: September 27, 2005Assignee: MediaTek Inc.Inventors: Chung-Tien Yen, Po-Jen Shen
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Publication number: 20040190420Abstract: A method for extracting information in a data signal stored on an optical disc. The information is stored in a plurality of channel bits. The method includes initializing a recovery period of a recovery clock to a predetermined value expressed in cycles of a first clock; sampling the data signal with the first clock; obtaining a leading edge time period expressed in cycles of the first clock of a pattern of bits from the sampled data in which at least a first bit has a first binary value, followed by a plurality of bits having a second binary value, and ending with a last bit having the first binary value, wherein the first and second binary values are not equal; updating the recovery period of the recovery clock to be equal to a new maximum period that is the leading edge time period divided by a division factor; extracting the information in the data signal based on the newest recovery period of the recovery clock; and detecting a predetermined code in the data signal.Type: ApplicationFiled: March 28, 2003Publication date: September 30, 2004Inventors: Chung-Tien Yen, Po-Jen Shen
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Publication number: 20040022153Abstract: A method for controlling the rotation speed of an optical storage device. In the first mode, a first signal is produced, and in the second mode, a second signal is produced. In one mode, a first pulse of a first voltage and a second pulse of a second voltage are sent to the motor, which causes the motor to produce a first armature current and a second armature current. In another mode, a DC signal of a third voltage is produced, which causes the motor to produce a third armature current. The armature currents are detected, and test voltages are outputted. The first and second voltages, and the first and second test voltages are used to find a motor coefficient. The third voltage, the motor coefficient, and the third test voltage are used to calculate a motor rotation speed. The calculated speed is used to control the real motor speed.Type: ApplicationFiled: June 18, 2003Publication date: February 5, 2004Inventor: Po-Jen Shen