Patents by Inventor Chung-Fuu Mao
Chung-Fuu Mao 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: 20210117017Abstract: A stylus structure including a stylus housing unit, a magnetic attaching unit, and a cover unit is provided. The stylus housing unit includes a stylus body component and a touch control component disposed at an end of the stylus body component. A first magnetic member is disposed at another end of the stylus body component. The magnetic attaching unit is sleeved at another end of the stylus body component. The cover unit includes a cover body component and a supportive component, and a second magnetic member is disposed on the supportive component. The cover body component is detachably sleeved at another end of the stylus body component and magnetically attached to the magnetic attaching unit, and the second magnetic member and the first magnetic member are magnetically attached to each other.Type: ApplicationFiled: February 20, 2020Publication date: April 22, 2021Inventors: YI-CHIH CHANG, CHUNG-FUU MAO
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Patent number: 10386944Abstract: A capacitive stylus capable of providing signals for tilt and orientation detection is provided. The capacitive stylus is used for a tablet or a touch panel. The capacitive stylus can emit two high voltage waves, and the tablet or the touch panel receives the two high voltage waves and determines a tilt angle and an orientation of the capacitive stylus according to the two high voltage waves. This capacitive stylus has configuration allowing the tilt and orientation detection to be precise.Type: GrantFiled: October 20, 2017Date of Patent: August 20, 2019Assignee: Waltop International CorporationInventors: Chung-Fuu Mao, Hsin-Chiang Ho
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Publication number: 20190033990Abstract: A capacitive stylus capable of providing signals for tilt and orientation detection is provided. The capacitive stylus is used for a tablet or a touch panel. The capacitive stylus can emit two high voltage waves, and the tablet or the touch panel receives the two high voltage waves and determines a tilt angle and an orientation of the capacitive stylus according to the two high voltage waves. This capacitive stylus has configuration allowing the tilt and orientation detection to be precise.Type: ApplicationFiled: October 20, 2017Publication date: January 31, 2019Inventors: Chung-Fuu Mao, Hsin-Chiang Ho
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Patent number: 10082895Abstract: A capacitive stylus and a touch control apparatus applying synchronized time difference signal transmitting method are disclosed. The capacitive styluses transmit data to a touch control apparatus via wireless communication modules respectively. A non-transitory computer-readable medium of the touch control apparatus storing instructions executable to perform a synchronized time difference signal transmitting method to synchronize time difference of the signal transmitting of the capacitive styluses.Type: GrantFiled: January 5, 2017Date of Patent: September 25, 2018Assignee: Waltop International CorporationInventors: Chung-Fuu Mao, Chia-Jui Yeh
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Publication number: 20180120959Abstract: A capacitive stylus and a touch control apparatus applying synchronized time difference signal transmitting method are disclosed. The capacitive styluses transmit data to a touch control apparatus via wireless communication modules respectively. A non-transitory computer-readable medium of the touch control apparatus storing instructions executable to perform a synchronized time difference signal transmitting method to synchronize time difference of the signal transmitting of the capacitive styluses.Type: ApplicationFiled: January 5, 2017Publication date: May 3, 2018Inventors: Chung-Fuu Mao, Chia-Jui Yeh
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Patent number: 9751200Abstract: The invention relates to a core disassembling device. The core disassembling device comprises an opening-closing box housing and at least one holding hole deposited at one side of the opening-closing box housing. The opening-closing box housing comprises an upper housing and a bottom housing, and the holding hole comprises a first notch and a second notch. The first notch is deposited at one side of the upper housing and the second notch is deposited at one side of the bottom housing. The second notch is corresponded to the first notch. When the opening-closing box housing is closed, the first notch and the second notch constitute the holding hole for holding and fixing the core of the capacitance pen. Therefore, it is easy and convenient for a user to draw the core out the capacitance pen and to change a new core.Type: GrantFiled: December 15, 2015Date of Patent: September 5, 2017Assignee: WALTOP INTERNATIONAL CORPORATIONInventors: Chung-Fuu Mao, Hsin-Chiang Ho
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Patent number: 9690399Abstract: A signal decoding and modulation processing system for capacitive stylus is disclosed. The system includes a micro controller unit (MCU) and a digital processing unit. The digital processing unit is electrically connected to the MCU. The digital processing unit includes a decoding module and a modulating module. The decoding module is configured to decode an input signal from a touch panel, so as to generate a decoded input content. Then, the MCU generates a feedback data according to the decoded input content. The modulating module receives the feedback data from the MCU and performs a modulation process accordingly for generating a differential binary phase shift keying (DBPSK) output signal, which is sent back to the touch panel.Type: GrantFiled: December 4, 2015Date of Patent: June 27, 2017Assignee: Waltop International CorporationInventors: Chung-Fuu Mao, Chia-Jui Yeh
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Publication number: 20170123522Abstract: A capacitive stylus is disclosed. The capacitive stylus comprises a conductive nib, a confining component, a spring, a conductive line and a control circuit board. The conductive nib electrically connects to the control circuit board via the spring and the conductive line. The confining component prevents the spring and the conductive line from lateral movement.Type: ApplicationFiled: December 10, 2015Publication date: May 4, 2017Inventors: CHUNG-FUU MAO, HSIN-CHIANG HO
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Publication number: 20170115753Abstract: A method for detecting an orientation of a stylus over a touch panel is disclosed. The method utilizes capacitance variations on a first location and a second location of the touch panel generated from a tip of a nib of the stylus and a portion of the nib corresponding to a non-shielding portion of a shielding of the stylus to determine the orientation of the stylus.Type: ApplicationFiled: October 21, 2015Publication date: April 27, 2017Inventors: CHUNG-FUU MAO, CHIA-JUI YEH, A-Li WONG, Chih Hung HUANG
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Publication number: 20170108955Abstract: The present invention relates to an ergonomic capacitance pen. The ergonomic capacitance pen comprises an electrical signal transmitting module and a housing. The electrical signal transmitting module is deposited inside the housing. The electrical signal transmitting module comprises a core, a core holder, a spring, a sensor holder, a circuit board, and a battery holder. The battery holder is deposited on one surface of the circuit board and they are parallel with each other. When a battery is put into the battery holder, the battery and the circuit board are parallel with each other. Therefore, the gravity center of the ergonomic capacitance pen moves to the position near the head of the ergonomic capacitance pen, and the ergonomic capacitance pen can have a structure having best proportion of allocation for easily holding the ergonomic capacitance pen.Type: ApplicationFiled: December 9, 2015Publication date: April 20, 2017Inventors: CHUNG-FUU MAO, HSIN-CHIANG HO
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Publication number: 20170106511Abstract: The invention relates to a core disassembling device. The core disassembling device comprises an opening-closing box housing and at least one holding hole deposited at one side of the opening-closing box housing. The opening-closing box housing comprises an upper housing and a bottom housing, and the holding hole comprises a first notch and a second notch. The first notch is deposited at one side of the upper housing and the second notch is deposited at one side of the bottom housing. The second notch is corresponded to the first notch. When the opening-closing box housing is closed, the first notch and the second notch constitute the holding hole for holding and fixing the core of the capacitance pen. Therefore, it is easy and convenient for a user to draw the core out the capacitance pen and to change a new core.Type: ApplicationFiled: December 15, 2015Publication date: April 20, 2017Inventors: CHUNG-FUU MAO, HSIN-CHIANG HO
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Publication number: 20170108953Abstract: The capacitive stylus includes a pen tube, an upper skeleton structure, a lower skeleton structure, a pen cover, a refill, a refill holder, a trigger element, a spring, a control circuit board, a pressure sensing element and an adjusting element. The pen cover is connected with the pen tube by the upper skeleton structure and the lower skeleton structure. The trigger element is inserted in another end of the refill holder. The pressure sensing element is electrically connected with the control circuit board and disposed in accordance with the trigger element. When the refill and the refill holder press the spring so that the trigger element contacts the pressure sensing element, the pressure sensing element detects the pressure force against the refill. The adjusting element is configured to adjust the gap between the pressure sensing element and the trigger element.Type: ApplicationFiled: November 16, 2015Publication date: April 20, 2017Inventors: CHUNG-FUU MAO, YI-CHIH CHANG
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Publication number: 20170108963Abstract: A signal decoding and modulation processing system for capacitive stylus is disclosed. The system includes a micro controller unit (MCU) and a digital processing unit. The digital processing unit is electrically connected to the MCU. The digital processing unit includes a decoding module and a modulating module. The decoding module is configured to decode an input signal from a touch panel, so as to generate a decoded input content. Then, the MCU generates a feedback data according to the decoded input content. The modulating module receives the feedback data from the MCU and performs a modulation process accordingly for generating a differential binary phase shift keying (DBPSK) output signal, which is sent back to the touch panel.Type: ApplicationFiled: December 4, 2015Publication date: April 20, 2017Inventors: CHUNG-FUU MAO, CHIA-JUI YEH
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Patent number: 9171664Abstract: An induction coil of a touch input device provided in the present invention includes a ribbon cable and a coupling device. The ribbon cable is disposed on a plane, and the ribbon cable has a first terminal and a second terminal and has a plurality of wires. The ribbon cable defines a sensing region on the plane by a plurality of bends. The coupling device is utilized to couple the wires at the first terminal and the second terminal such that the wires form a circuit with a plurality of turns wound by a single conducting wire. A touch input device is further provided in the present invention.Type: GrantFiled: January 10, 2014Date of Patent: October 27, 2015Assignee: WALTOP INTERNATIONAL CORP.Inventors: Chung Fuu Mao, Chia Jui Yeh, Chien Chia Lien
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Patent number: 9158394Abstract: A stylus provided in the present invention is utilized to input accompanying with a capacitive touch panel. The stylus includes a housing, a magnetic core and a pen tip. The magnetic core is disposed inside the housing. The magnetic core has an axial through hole which defines a bore diameter. The pen tip is disposed at an end of the housing, and the pen tip is made of conductor. The pen tip has a rod portion and a contacting portion. The rod portion is inserted into the axial through hole, and the contacting portion protrudes from the pen shell. The contacting portion has a cylindrical surface and a part spherical surface. The cylindrical surface defines a first diameter; the part spherical surface defines a second diameter. The first diameter is less than the second diameter, and the first diameter is greater than or equal to the bore diameter.Type: GrantFiled: May 2, 2014Date of Patent: October 13, 2015Assignee: WALTOP INTERNATIONAL CORP.Inventors: Chung Fuu Mao, Chia Jui Yeh, Chien Chia Lien
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Publication number: 20150233779Abstract: Gloves with pressure sensors are disclosed. The gloves comprise a microprocessor, an accelerometer, a plurality of pressure sensors, a gyro sensor and a power source to detect pressure forces of fingers and postures and motions of palms of a user.Type: ApplicationFiled: May 6, 2014Publication date: August 20, 2015Applicant: WALTOP INTERNATIONAL CORPORATIONInventors: DANIEL CHEN, CHUNG-FUU MAO
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Publication number: 20150109541Abstract: An induction coil of a touch input device provided in the present invention includes a ribbon cable and a coupling device. The ribbon cable is disposed on a plane, and the ribbon cable has a first terminal and a second terminal and has a plurality of wires. The ribbon cable defines a sensing region on the plane by a plurality of bends. The coupling device is utilized to couple the wires at the first terminal and the second terminal such that the wires form a circuit with a plurality of turns wound by a single conducting wire. A touch input device is further provided in the present invention.Type: ApplicationFiled: January 10, 2014Publication date: April 23, 2015Applicant: WALTOP INTERNATIONAL CORP.Inventors: CHUNG FUU MAO, CHIA JUI YEH, CHIEN CHIA LIEN
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Publication number: 20150109239Abstract: A stylus provided in the present invention is utilized to input accompanying with a capacitive touch panel. The stylus includes a housing, a magnetic core and a pen tip. The magnetic core is disposed inside the housing. The magnetic core has an axial through hole which defines a bore diameter. The pen tip is disposed at an end of the housing, and the pen tip is made of conductor. The pen tip has a rod portion and a contacting portion. The rod portion is inserted into the axial through hole, and the contacting portion protrudes from the pen shell. The contacting portion has a cylindrical surface and a part spherical surface. The cylindrical surface defines a first diameter; the part spherical surface defines a second diameter. The first diameter is less than the second diameter, and the first diameter is greater than or equal to the bore diameter.Type: ApplicationFiled: May 2, 2014Publication date: April 23, 2015Applicant: WALTOP INTERNATIONAL CORP.Inventors: CHUNG FUU MAO, Chia Jui Yeh, Chien Chia Lien
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Publication number: 20150070297Abstract: A control method for a touch panel is disclosed. First of all, a step of detecting an electromagnetic and capacitive pen is performed. Next a step of detecting a conductive indicator is undertaken, followed by a step of detecting a signal value of the conductive indicator being performed. A step of determining whether the signal value is over a threshold value is then performed to determine whether a first or a second touch control modes. The touch panel has electromagnetic sensitive and capacitive touch control functions.Type: ApplicationFiled: December 7, 2013Publication date: March 12, 2015Applicant: WALTOP INTERNATIONAL CORPORATIONInventors: CHUNG-FUU MAO, CHIA-JUI YEH
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Publication number: 20140375599Abstract: A touch input system provided in the present invention includes a touch panel, a conducting coil, and an electromagnetic pen. The touch panel has a sensing area and a marginal area. The conducting coil is disposed on the touch panel. The conducting coil has a circuit with a plurality of turns wound by a conductive wire, and the circuit with the plurality of turns is located at the marginal area and surrounds the sensing area. The electromagnetic pen is utilized to transmit an electromagnetic signal to the conducting coil for performing a detection of a touch pressure. The electromagnetic pen includes a pen tip which is utilized to contact the sensing area for performing a detection of a touch position, and the pen tip is a conductor. A touch input method is further provided in the present invention.Type: ApplicationFiled: December 17, 2013Publication date: December 25, 2014Applicant: WALTOP INTERNATIONAL CORP.Inventors: CHUNG FUU MAO, CHIA JUI YEH, CHENGPENG KUAN