Patents by Inventor Mei Yung Chen
Mei Yung Chen 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: 10376068Abstract: A seat cushion includes a cushion body, a weight measuring unit coupled to the cushion body, a tilt adjusting unit, a storage unit storing pre-established mapping data, and a controlling unit. The weight measuring unit measures, when a user is sitting on the cushion body, weight of the user applied to the cushion body so as to generate a result of weight measurement. The controlling unit is connected to the weight measuring unit, the tilt adjusting unit and the storage unit, and controls, when the seat cushion is operated in an automatic mode, the tilt adjusting unit to adjust a seat angle of the cushion body with respect to a horizontal reference plane based on the result of weight measurement, a height value and the mapping data.Type: GrantFiled: April 28, 2017Date of Patent: August 13, 2019Assignee: NATIONAL TAIWAN NORMAL UNIVERSITYInventors: Jon-Chao Hong, Mei-Yung Chen, Kai-Wen Tai, Kai-Hsin Tai, Chi-Ruei Tsai
-
Publication number: 20180310713Abstract: A seat cushion includes a cushion body, a weight measuring unit coupled to the cushion body, a tilt adjusting unit, a storage unit storing pre-established mapping data, and a controlling unit. The weight measuring unit measures, when a user is sitting on the cushion body, weight of the user applied to the cushion body so as to generate a result of weight measurement. The controlling unit is connected to the weight measuring unit, the tilt adjusting unit and the storage unit, and controls, when the seat cushion is operated in an automatic mode, the tilt adjusting unit to adjust a seat angle of the cushion body with respect to a horizontal reference plane based on the result of weight measurement, a height value and the mapping data.Type: ApplicationFiled: April 28, 2017Publication date: November 1, 2018Applicant: National Taiwan Normal UniversityInventors: Jon-Chao HONG, Mei-Yung CHEN, Kai-Wen TAI, Kai-Hsin TAI, Chi-Ruei TSAI
-
Publication number: 20170025042Abstract: A wearable device capable of indicating direction is provided, including a wearable module, a plurality of acoustic wave sensors, a plurality of vibrators, and a control module. The wearable module is adapted to be worn on the user's body, the acoustic wave sensors and the vibrators are disposed on the wearable module in different directions. The control module is electrically connected to the acoustic wave sensors and the vibrators. Each acoustic wave sensor is driven by a sound signal generated by an external object to generate a response signal, the control module receives and compares the response signals to recognize the direction of the external object, and controls the vibrator to generate the vibration signal.Type: ApplicationFiled: July 20, 2016Publication date: January 26, 2017Inventors: Mei-Yung CHEN, Jon-Chao HONG, Jung-Cheng CHEN, Jen-Chih LIU, Hao-Ping HUANG, Wei-Zhi LIN
-
Patent number: 9009038Abstract: A method for analyzing a digital audio signal associated with a baby cry, comprising the steps of: (a) processing the digital audio signal using a spectral analysis to generate a spectral data; (b) processing the digital audio signal using a time-frequency analysis to generate a time-frequency characteristic; (c) categorizing the baby cry into one of a basic type and a special type based on the spectral data; (d) if the baby cry is of the basic type, determining a basic need based on the time-frequency characteristic and a predetermined lookup table; and (e) if the baby cry is of the special type, determining a special need by inputting the time-frequency characteristic into a pre-trained artificial neural network.Type: GrantFiled: May 22, 2013Date of Patent: April 14, 2015Assignee: National Taiwan Normal UniversityInventors: Jon-Chao Hong, Chao-Hsin Wu, Mei-Yung Chen
-
Patent number: 8888282Abstract: An electronic vision-therapy apparatus includes a frame, a lens module and a control unit. The lens module includes first and second liquid crystal lenses. The control unit is for controlling the first and second liquid crystal lenses to cooperatively generate and display a light filtering pattern. The light filtering pattern has an opaque part and a plurality of transparent parts. The control unit configures a part of the first liquid crystal lens that corresponds to the opaque part to allow only light having a first polarization to pass therethrough, and configures a part of the second liquid crystal lens that corresponds to the opaque part to allow only light having a second polarization orthogonal to the first polarization to pass therethrough.Type: GrantFiled: May 3, 2013Date of Patent: November 18, 2014Assignee: National Taiwan Normal UniversityInventors: Jon-Chao Hong, Chao-Hsin Wu, Mei-Yung Chen
-
Publication number: 20130342808Abstract: An electronic vision-therapy apparatus includes a frame, a lens module and a control unit. The lens module includes first and second liquid crystal lenses. The control unit is for controlling the first and second liquid crystal lenses to cooperatively generate and display a light filtering pattern. The light filtering pattern has an opaque part and a plurality of transparent parts. The control unit configures a part of the first liquid crystal lens that corresponds to the opaque part to allow only light having a first polarization to pass therethrough, and configures a part of the second liquid crystal lens that corresponds to the opaque part to allow only light having a second polarization orthogonal to the first polarization to pass therethrough.Type: ApplicationFiled: May 3, 2013Publication date: December 26, 2013Applicant: National Taiwan Normal UniversityInventors: Jon-Chao Hong, Chao-Hsin Wu, Mei-Yung Chen
-
Publication number: 20130317815Abstract: A method for analyzing a digital audio signal associated with a baby cry, comprising the steps of: (a) processing the digital audio signal using a spectral analysis to generate a spectral data; (b) processing the digital audio signal using a time-frequency analysis to generate a time-frequency characteristic; (c) categorizing the baby cry into one of a basic type and a special type based on the spectral data; (d) if the baby cry is of the basic type, determining a basic need based on the time-frequency characteristic and a predetermined lookup table; and (e) if the baby cry is of the special type, determining a special need by inputting the time-frequency characteristic into a pre-trained artificial neural network.Type: ApplicationFiled: May 22, 2013Publication date: November 28, 2013Applicant: NATIONAL TAIWAN NORMAL UNIVERSITYInventors: Jon-Chao Hong, Chao-Hsin Wu, Mei-Yung Chen
-
Patent number: 7940150Abstract: In a six-degree-of-freedom precision positioning system, magnetic force and fluid buoyancy are used to levitate a platform, and the non-contact magnetic force between electromagnets and magnets forms a main driving force for the platform. Therefore, no friction is present in the system and no lubricating mechanism is needed for the system. Moreover, in the system, electric current is converted by electromagnets and magnets into a magnetic driving force without using any transmission gears. Therefore, the backlash phenomenon that is not easily controllable in the conventional servo positioning systems is avoided. The system has simplified structure without the need of complicated fabrication, and utilizes the properties of fluid to achieve low power consumption, high precision positioning, and fast response.Type: GrantFiled: June 26, 2008Date of Patent: May 10, 2011Assignee: National Taiwan UniversityInventors: Li-Chen Fu, Sheng-Chih Huang, Shao-Kang Hung, Mei-Yung Chen
-
Publication number: 20090241719Abstract: In a six-degree-of-freedom precision positioning system, magnetic force and fluid buoyancy are used to levitate a platform, and the non-contact magnetic force between electromagnets and magnets forms a main driving force for the platform. Therefore, no friction is present in the system and no lubricating mechanism is needed for the system. Moreover, in the system, electric current is converted by electromagnets and magnets into a magnetic driving force without using any transmission gears. Therefore, the backlash phenomenon that is not easily controllable in the conventional servo positioning systems is avoided. The system has simplified structure without the need of complicated fabrication, and utilizes the properties of fluid to achieve low power consumption, high precision positioning, and fast response.Type: ApplicationFiled: June 26, 2008Publication date: October 1, 2009Applicant: NATIONAL TAIWAN UNIVERSITYInventors: Li-Chen Fu, Sheng-Chih Huang, Shao-Kang Hung, Mei-Yung Chen
-
Patent number: 7185590Abstract: A six-degree-of-freedom magnetic levitation positioning system includes a levitated platform, six impelling coils disposed adjacent to the platform, and six permanent magnets attached to the platform such that each of the permanent magnets is adjacent to and magnetically aligned with a respective one of the impelling coils, whereby there are six magnet-coil sets. Among the six sets, three of the sets are maglev sets in which magnetic axes of the impelling coils are generally vertically aligned, and another three of the sets are horizontal impelling sets in which magnetic axes of the impelling coils are generallv horizontally aligned. The magnetic axes of the three horizontal impelling sets are all mutually non-parallel, so that elevation and tiltings of the platform can be actuated by adjusting the currents in coils of the three maglev sets, and translations and rotations about a vertical axis of the platform can be actuated by adjusting the currents in coils of the three horizontal impelling sets.Type: GrantFiled: March 8, 2004Date of Patent: March 6, 2007Assignee: National Taiwan UniversityInventors: Li Chen Fu, Mei Yung Chen, Tzuo Bo Lin