Patents by Inventor Chung-Wen Hsu
Chung-Wen Hsu 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: 20200050295Abstract: An automatic pencil type pointer includes a housing, a first circuit unit, a lead propelling unit, and a first electromagnetic unit. The housing has a port and an accommodation space in communication with the port. The first circuit unit is disposed in the accommodation space. The lead propelling unit is disposed in the accommodation space and includes a lead storage tube, a tip sleeve, a graphite lead, and a lead propelling assembly. The tip sleeve is disposed at the port. The graphite lead is accommodated in the lead storage tube. The lead propelling assembly is capable of controlling the graphite lead to be output from the tip sleeve. The first electromagnetic unit includes a first magnet and a first coil. The first coil is wound around the first magnet and is electrically connected to the first circuit unit. The graphite lead passes through the first magnet.Type: ApplicationFiled: April 2, 2019Publication date: February 13, 2020Applicant: SHENZHEN PU YING INNOVATION TECHNOLOGY CORP., LTD.Inventors: Chung-Wen HSU, Chung-Hsuan LI
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Publication number: 20190179432Abstract: A pointer includes a casing, a first electromagnetic unit, a second electromagnetic unit, a first elastic member, and a pen point. The casing has an accommodation space and a port in communication with the accommodation space. The first electromagnetic unit includes a first magnet and a coil winding around the first magnet. The first magnet is fixedly disposed in the accommodation space. The second electromagnetic unit is movably disposed in the accommodation space along an axial direction, where the second electromagnetic unit includes a second magnet and a protection member wrapping the second magnet, and the second magnet is relatively away from or close to the first magnet. The elastic member is disposed in the casing and can provide an elastic force to the second electromagnetic unit along the axial direction. The pen point is movably disposed at the port and connected to the protection member.Type: ApplicationFiled: May 16, 2018Publication date: June 13, 2019Applicant: SHENZHEN PU YING INNOVATION TECHNOLOGY CORP., LTD.Inventors: Chung-Wen HSU, Chung-Hsuan LI
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Patent number: 8355012Abstract: A scanning method for determining the touch position of a touch input apparatus is disclosed. First of all, a first exposure process on light sensors of the touch input apparatus by light emitting device of the touch input apparatus is performed. Then the light sensors are scanned. A light sensor generating a signal with a maximum value is located. A region of partial scan of the light sensors is determined according to the position of the light sensor generating the signal with the maximum value. A second exposure process is performed on the light sensors. Then the light sensors within the region of partial scan are scanned. A light sensor generating a signal with a maximum value within the region of partial scan is located and a next region of partial scan is determined. The maximum value of the signal is calculated and the maximum value of the signal is compared to a predetermined value to determine whether the maximum value is higher than the predetermined value.Type: GrantFiled: November 1, 2010Date of Patent: January 15, 2013Assignee: Waltop International CorporationInventors: Wei-Chou Chen, Chung-Wen Hsu
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Patent number: 8350165Abstract: A flexible tablet is disclosed, and particular disclosed a flexible tablet having both of a hard housing structure and a soft housing structure. The flexible tablet fix a control board in the hard housing structure for preventing the control board form bending and break resulting from external force. In the flexible tablet, the soft housing structure is applied instead of the hard housing of a conventional tablet to fix a sensing board therein. Therefore, the soft housing structure and the sensing board are integrated to form a flexible writing member of the flexible tablet. As a consequence of foregoing structure, the tablet is flexible and convenient to be stored and carried, and the cost of the tablet is reduced.Type: GrantFiled: August 11, 2009Date of Patent: January 8, 2013Assignee: Waltop International CorporationInventors: Chung-Fu Mao, Chung-Wen Hsu, Chien-Chia Lien, Kuang-Yao Hsieh
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Patent number: 8228157Abstract: The present invention relates to a new layout for inductive loops of the electromagnetic-induction system, and particularly relates to a new layout for inductive loops of the electromagnetic-induction system which can be integrated with another type of input system. The inductive loop structure of the layout for inductive loops of the electromagnetic-induction system comprises a plurality of -shaped regions, a plurality of switches, a plurality of grounding lines, a grounding switch, and a plurality of signal ports. The -shaped regions are connected with each other to form a fence-shaped inductive loop structure, but the -shaped regions are not interlaced with each other. By this way, the difficulties and the complication for layout for inductive loops of the electromagnetic-induction system are decreased. Therefore, it helps the layout for inductive loops of the electromagnetic-induction system to be integrated with another type of input system into one system.Type: GrantFiled: March 17, 2010Date of Patent: July 24, 2012Assignee: Waltop International CorporationInventor: Chung-Wen Hsu
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Publication number: 20120112766Abstract: An electromagnetic induction coordinate detecting method for detecting the trace of at least one electromagnetic pointing device on an electromagnetic sensor board is disclosed. The method includes the following steps: first, a delayed period for each electromagnetic pointing device is pre-determined. Then, whether a board-trigger signal from the electromagnetic sensor board is received is determined. If yes, the electromagnetic pointing device emits an electromagnetic signal after the delayed period. Finally, the electromagnetic sensor board calculates the coordinate and the pressure of each electromagnetic pointing device according to the received electromagnetic signal.Type: ApplicationFiled: June 17, 2011Publication date: May 10, 2012Applicant: WALTOP INTERNATIONAL CORPORATIONInventors: CHUNG-WEN HSU, CHENG-LU LIU
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Publication number: 20120044211Abstract: An optical touch locating system and method thereof is disclosed herein. The method includes the following steps. A step is used for activating the coordinate detecting module. A step is used for calculating the distance between two optical touch apparatuses. A step is used for sequentially locating a plurality of anchor points. When indicating to detect a first anchor point, a step is used to touch one of four corners on a display device by a touch object. A step is used for sequentially detecting and locating the remaining anchor points. At final step, according to the distance between two optical touch apparatuses and the coordinates of the anchor points, the touch working area. is confirmed.Type: ApplicationFiled: March 7, 2011Publication date: February 23, 2012Applicant: WALTOP INTERNATIONAL CORPORATIONInventors: CHUNG-WEN HSU, CHUNG-FUU MAO, WEI-CHOU CHEN
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Publication number: 20110279412Abstract: A scanning method for determining the touch position of a touch input apparatus is disclosed. First of all, a first exposure process on light sensors of the touch input apparatus by light emitting device of the touch input apparatus is performed. Then the light sensors are scanned. A light sensor generating a signal with a maximum value is located. A region of partial scan of the light sensors is determined according to the position of the light sensor generating the signal with the maximum value. A second exposure process is performed on the light sensors. Then the light sensors within the region of partial scan are scanned. A light sensor generating a signal with a maximum value within the region of partial scan is located and a next region of partial scan is determined. The maximum value of the signal is calculated and the maximum value of the signal is compared to a predetermined value to determine whether the maximum value is higher than the predetermined value.Type: ApplicationFiled: November 1, 2010Publication date: November 17, 2011Applicant: WALTOP INTERNATIONAL CORPORATIONInventors: Wei-Chou CHEN, Chung-Wen Hsu
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Publication number: 20110080378Abstract: The present invention relates to an eraser system, and particularly relates to an independent eraser system for the digitizer coordinate system. The independent eraser system for the digital coordinate system is separated from the digitizer pen, and thus, the independent eraser system and the digitizer pen can be operated independently and simultaneously. The independent eraser system comprises an erasing function circuit and the erasing function circuit comprises a power supplier for providing the electric energy, an oscillating circuit for providing the electric signals and a converter for converting the electric signals into magnetic signals.Type: ApplicationFiled: January 4, 2010Publication date: April 7, 2011Applicant: WALTOP INTERNATIONAL CORPORATIONInventor: Chung-Wen Hsu
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Publication number: 20110080249Abstract: The present invention relates to a new layout for inductive loops of the electromagnetic-induction system, and particularly relates to a new layout for inductive loops of the electromagnetic-induction system which can be integrated with another type of input system. The inductive loop structure of the layout for inductive loops of the electromagnetic-induction system comprises a plurality of -shaped regions, a plurality of switches, a plurality of grounding lines, a grounding switch, and a plurality of signal ports. The -shaped regions are connected with each other to form a fence-shaped inductive loop structure, but the -shaped regions are not interlaced with each other. By this way, the difficulties and the complication for layout for inductive loops of the electromagnetic-induction system are decreased. Therefore, it helps the layout for inductive loops of the electromagnetic-induction system to be integrated with another type of input system into one system.Type: ApplicationFiled: March 17, 2010Publication date: April 7, 2011Applicant: WALTOP INTERNATIONAL CORPORATIONInventor: Chung-Wen Hsu
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Publication number: 20110000720Abstract: A flexible tablet is disclosed, and particular disclosed a flexible tablet having both of a hard housing structure and a soft housing structure. The flexible tablet fix a control board in the hard housing structure for preventing the control board form bending and break resulting from external force. In the flexible tablet, the soft housing structure is applied instead of the hard housing of a conventional tablet to fix a sensing board therein. Therefore, the soft housing structure and the sensing board are integrated to form a flexible writing member of the flexible tablet. As a consequence of foregoing structure, the tablet is flexible and convenient to be stored and carried, and the cost of the tablet is reduced.Type: ApplicationFiled: August 11, 2009Publication date: January 6, 2011Applicant: WALTOP INTERNATIONAL CORPORATIONInventors: Chung-Fu Mao, Chung-Wen Hsu, Chien-Chia Lien, Kuang-Yao Hsien
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Publication number: 20100271300Abstract: A multi-touch pad control method is disclosed. The method comprises the following steps. First of all, a primary cursor is detected. Then a first touch motion is detected, if there is no first touch motion, primary cursor is re-detected. Next a secondary cursor is detected if there is a first touch motion. Then a second touch motion is detected. A first function is performed if there is no second touch motion. A first direction of the second touch motion is detected, if the second touch motion controlling the secondary cursor is detected. A second function is performed if the second touch motion is toward first direction. A second direction of the second touch motion is detected, if the second touch motion is not toward the first direction.Type: ApplicationFiled: October 15, 2009Publication date: October 28, 2010Applicant: WALTOP INTERNATIONAL CORPORATIONInventors: Chung-Wen Hsu, Ke-Wei Chen
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Publication number: 20090267905Abstract: A cursor input device with dual input modes is provided, including a control computing module, a coordinate sensing module, a first analog multiplexing module, a first signal processing module, a second analog multiplexing module and a second signal processing module, where the coordinate sensing module further including a touch sensing loop unit and an electromagnetic sensing loop unit. The control computing module at least includes a microprocessor. The control computing module uses the first analog multiplexing unit and the first signal processing module to enable the electromagnetic sensing loop unit to perform signal scanning and processing, and uses the second analog multiplexing unit and the second signal processing module to enable the touch sensing loop unit to perform signal scanning and processing. In this manner, the user can use either touch input mode or electromagnetic pen input mode to control the cursor of the present invention to execute various the application software or operating system.Type: ApplicationFiled: April 26, 2008Publication date: October 29, 2009Inventors: Chung-Wen Hsu, Chia-Te Huang, Cheng-Tai Huang, Chang-Chin Lai
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Patent number: 7358964Abstract: A multi-induction loop layout of an electromagnetic inductive system is disclosed. The multi-induction loop layout of the invention comprises a plurality of inductive loops, one terminal of each inductive loop connecting to a loop switch, and the other terminal connecting to the common node. Every logical inductive loop is a relative close inductive loop, the relative close inductive loop possessing a plurality of -type sections, forming a sawtooth-shaped region and corresponding to and closing each other to form a plurality of close-like regions. The form of which gradually approaches the multi-induction loop layout.Type: GrantFiled: September 25, 2002Date of Patent: April 15, 2008Assignee: Waltop International Corp.Inventors: Ching-Chuan Chao, Chung-Wen Hsu
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Patent number: 7176907Abstract: The invention, an improved device and method for the pointer system of a digitizer tablet, is to repetitiously emit signals sequentially from a specific set of inductive loop when the position pointed by the wireless pointer device is located within a range formed by this specific set of inductive loop induced most intensively during a locally scanning process. After a transient energy storage of the wireless pointer device, corresponding resonant signals are emitted out and are received sequentially by several sets of inductive loop located on the digitizer tablet in the neighborhood of this specific set of inductive loop and, by these signals, the wireless pointer device's coordinate position on the digitizer tablet is calculated out relatively.Type: GrantFiled: October 23, 2002Date of Patent: February 13, 2007Assignee: Waltop International Corp.Inventors: Ching-Chuan Chao, Chung-Wen Hsu
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Patent number: 6999067Abstract: An electromagnetic induction device with a writing function is disclosed in this present invention. The design of this invention combines an electromagnetic induction device and a writing device in a pen-like device. The electromagnetic induction device can be employed as a pointer device of a tablet. The writing device can be used as an ink pen. Moreover, while writing on paper, the tablet can detect and calculate the coordinates of the writing device and save the coordinates in memory device, such as a RAM. After communicating with the host machine, the monitor can response and display the handwriting trace. Hence, it is very convenient for a user to bring and carry a pen-like device with multiple functions according to this invention.Type: GrantFiled: December 30, 2002Date of Patent: February 14, 2006Assignee: Aiptek International Inc.Inventors: Ching-Chuan Chao, Ping-Hung Chen, Chung-Wen Hsu
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Patent number: 6930670Abstract: A computer peripheral input system with two input types and a method of data communication for the same is provided. The computer peripheral input system comprises a first input module, a second input module and control means having a communication interface installed therein. The first input module is used for inputting at least a first input data and generating a first input signal corresponding thereto. The second input module is used for inputting at least a second input data and generating a second input signal corresponding thereto. Control means reads and processes the first and second input signals, and then stores a first and second information respectively corresponding thereto. The first information represents the first input data. The second information represents the second input data. The communication interface sends the first and second information stored in control means by a polling method.Type: GrantFiled: December 31, 2001Date of Patent: August 16, 2005Assignee: Aiptek International Inc.Inventors: Ching-Chuan Chao, Chung-Wen Hsu
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Patent number: 6909426Abstract: The purpose of the present invention is to reduce power consumption caused by controlling circuit in transmitting/receiving process between tablet system and cord less-battery less pointer apparatus. The present invention provides multi-channel switches set produced in semi-conductor process to replace traditional analog switch and tri-state element used in prior art as signal transmitting/receiving selector of inductive loops of tablet, which can simplify controlling circuit, enhance power efficiency of signal transmitting/receiving between tablet system and cord less and cell less pointer apparatus, and increase speed of response of signal transmitting/receiving between tablet and cord less-battery less pointer apparatus.Type: GrantFiled: March 3, 2003Date of Patent: June 21, 2005Inventors: Ching-Chuan Chao, Chung-Wen Hsu
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Publication number: 20040174343Abstract: The purpose of the present invention is to reduce power consumption caused by controlling circuit in transmitting/receiving process between tablet system and cord less-battery less pointer apparatus. The present invention provides multi-channel switches set produced in semi-conductor process to replace traditional analog switch and tri-state element used in prior art as signal transmitting/receiving selector of inductive loops of tablet, which can simplify controlling circuit, enhance power efficiency of signal transmitting/receiving between tablet system and cord less and cell less pointer apparatus, and increase speed of response of signal transmitting/receiving between tablet and cord less-battery less pointer apparatus.Type: ApplicationFiled: March 3, 2003Publication date: September 9, 2004Inventors: Ching-Chuan Chao, Chung-Wen Hsu
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Publication number: 20040125089Abstract: An electromagnetic induction device with a writing function is disclosed in this present invention. The design of this invention combines an electromagnetic induction device and a writing device in a pen-like device. The electromagnetic induction device can be employed as a pointer device of a tablet. The writing device can be used as an ink pen. Moreover, while writing on paper, the tablet can detect and calculate the coordinates of the writing device and save the coordinates in memory device, such as a RAM. After communicating with the host machine, the monitor can response and display the handwriting trace. Hence, it is very convenient for a user to bring and carry a pen-like device with multiple functions according to this invention.Type: ApplicationFiled: December 30, 2002Publication date: July 1, 2004Applicant: Aiptek International Inc.Inventors: Ching-Chuan Chao, Ping-Hung Chen, Chung-Wen Hsu