Patents Assigned to Waltop International Corporation
  • Patent number: 9606642
    Abstract: A portable electronic device uses a miniaturization rechargeable capacitive stylus including a pen-shaped casing structure, a support structure, a circuit substrate, a sensor module, a pen head structure, an electrical connector structure, and a power supply component. The pen-shaped casing structure has a retaining convex portion. The electrical connector structure includes a carrier substrate positioned on the support structure and an electrical connector disposed on the carrier substrate, and the electrical connector has an electrical connection portion exposed from the pen-shaped casing structure. When the pen-shaped casing structure is inserted into a receiving space of the portable electronic device, the pen-shaped casing structure is positioned inside the receiving space of the portable electronic device by matching the retaining convex portion of the pen-shaped casing structure and a retaining concave portion that is disposed inside the receiving space of the portable electronic device.
    Type: Grant
    Filed: August 22, 2015
    Date of Patent: March 28, 2017
    Assignee: WALTOP INTERNATIONAL CORPORATION
    Inventor: Yi Chih Chang
  • Patent number: 9280217
    Abstract: A capacitive pointer is disclosed. The capacitive pointer comprises a refill, a refill holder, a spring, a control board, a force sensor, an upper shielding, a lower shielding, a tip cover and a battery. The refill comprises a conductor and penetrates through the refill holder. The spring surrounds one end of the refill holder. The refill holder and the spring electrically connect the control board. The force sensor is located on one end of the control board. The refill and the refill holder press the spring to contact the force sensor to detect the pressure force against the refill. The upper shielding and the lower shielding combine to cover the refill, the refill holder and the spring. The tip cover surrounds one end of the refill and the upper shielding and the lower shielding and electrically connects to the control board. The battery provides the capacitive pointer with electrical power.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: March 8, 2016
    Assignee: Waltop International Corporation
    Inventors: Yu Chiehmr Ho, Chia-Jui Yeh
  • Patent number: 9274618
    Abstract: An active capacitive touch pen includes a casing unit, a circuit unit, a power supply unit and a pen head unit. The casing unit includes a pen-shaped casing structure. The circuit unit includes a circuit substrate disposed inside the pen-shaped casing structure and at least one varistor disposed inside the pen-shaped casing structure and electrically connected to the circuit substrate. The power supply unit includes at least one power supply component disposed inside the pen-shaped casing structure and electrically connected to the circuit substrate. The pen head unit includes a pen head structure movably disposed inside the pen-shaped casing structure and an elastic structure disposed between the pen head structure and the varistor. The pen head structure has an exposed contacting portion exposed from the pen-shaped casing structure. Whereby, a predetermined pressure generated by pushing the pen head structure is transmitted to the varistor through the elastic structure.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: March 1, 2016
    Assignee: WALTOP INTERNATIONAL CORPORATION
    Inventor: Yu-Chieh Ho
  • Patent number: 9229546
    Abstract: A circuit of frequency counter is adapted for an electromagnetic board with an electromagnetic pen. The counter exemplarily includes a source count module, a motion count module, a logic module, a switching gate module, a signal-capturing module, a frequency-counting module and a control module. The source count module counts number of clock pulses of a first clock signal. A receiver mode is switched by the switching gate module when the number reaches a first predetermined value. The motion count module counts number of clock pulses of a second clock signal. A transmitter mode is made by the switching gate module when the number reaches a second predetermined value. When a cumulative number of circular number counted by the frequency-counting module reaches a third predetermined value, the frequency-counting module completes counting a first high-frequency clock signals, and the control module obtains an operating frequency for the electromagnetic pen.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: January 5, 2016
    Assignee: WALTOP INTERNATIONAL CORPORATION
    Inventors: Chia-Jui Yeh, Cheng-Wei Wang, In-koune Kao
  • Publication number: 20150233779
    Abstract: 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: Application
    Filed: May 6, 2014
    Publication date: August 20, 2015
    Applicant: WALTOP INTERNATIONAL CORPORATION
    Inventors: DANIEL CHEN, CHUNG-FUU MAO
  • Publication number: 20150212605
    Abstract: An active capacitive touch pen includes a casing unit, a circuit unit, a power supply unit, a pen core unit and an electromagnetic unit. The casing unit includes a pen-shaped casing structure. The circuit unit includes a circuit substrate disposed inside the pen-shaped casing structure and electrically connected to the power supply unit. The pen core unit includes a pen core structure movably disposed inside the pen-shaped casing structure and electrically connected to the circuit substrate, and one part of the pen core structure is exposed outside the pen-shaped casing structure. The electromagnetic unit includes a fixed magnetic structure fixed inside the pen-shaped casing structure and disposed around the pen core structure and a movable magnetic structure fixedly disposed around the pen core structure and electrically connected to the circuit substrate. The movable magnetic structure is separated from the fixed magnetic structure by a predetermined adjustable distance.
    Type: Application
    Filed: April 3, 2014
    Publication date: July 30, 2015
    Applicant: WALTOP INTERNATIONAL CORPORATION
    Inventor: CHIEN-CHIA LIEN
  • Publication number: 20150153848
    Abstract: A micro touch pen structure includes a casing unit, a circuit unit, a first electromagnetic unit, a pen core unit, a second electromagnetic unit and an elastic unit. The circuit unit is disposed inside the pen-shaped casing structure. The first electromagnetic unit includes a first hollow electromagnetic body inside the pen-shaped casing structure and an electromagnetic coil wound around the first hollow electromagnetic body and electrically connected to the circuit unit. The pen core unit includes a first movable portion passing through the first hollow electromagnetic body, a second movable portion partially exposed from the pen-shaped casing structure, and a stop portion connected between the first and the second movable portions. The second electromagnetic unit includes a second hollowing electromagnetic body fixed inside the pen-shaped casing structure and disposed around the first movable portion. The elastic unit is disposed between the first movable portion and a fixed structure.
    Type: Application
    Filed: February 17, 2014
    Publication date: June 4, 2015
    Applicant: WALTOP INTERNATIONAL CORPORATION
    Inventor: CHIEN-CHIA LIEN
  • Publication number: 20150116287
    Abstract: An electromagnetic handwriting pen includes a casing unit, an ink writing unit and an electromagnetic writing unit. The ink writing unit is disposed inside the casing unit and includes an ink pen core having a pen nib. The electromagnetic writing unit is disposed inside the casing unit and includes a circuit substrate far away from the pen nib, an electricity conducting element adjacent to the circuit substrate, an elastic element insulatively disposed between the circuit substrate and the electricity conducting element, and a magnetic structure adjacent to the pen nib and electrically connected to the circuit substrate. The circuit substrate has at least two electrode portions adjacent to and facing the electricity conducting element. Whereby, when the electricity conducting element is moved to concurrently contact the at least two electrode portions, the at least two electrode portions are electrically connected with each other through the electricity conducting element.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 30, 2015
    Applicant: WALTOP INTERNATIONAL CORPORATION
    Inventors: CHIA-JUI YEH, CHUNG-HSUAN LI
  • Patent number: 9019225
    Abstract: The invention disclosed an electromagnetic pointer control method, the method comprising the following steps. First of all, an electromagnetic pointer is applied upon an electromagnetic input apparatus. Then a corresponding distance table is generated according to the moving distance of electromagnetic pointer upon the electromagnetic input apparatus, and a pressure gradient value range corresponding to the distance table is generated. Finally, a tip pressure of the electromagnetic pointer is calculated according to a maximum pressure gradient value in the pressure gradient value range and a pressure gradient value corresponding to the moving distance of electromagnetic pointer.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: April 28, 2015
    Assignee: Waltop International Corporation
    Inventor: Yen-Hao Han
  • Publication number: 20150091844
    Abstract: An active capacitive touch pen includes a casing unit, a circuit unit, a power supply unit and a pen head unit. The casing unit includes a pen-shaped casing structure. The circuit unit includes a circuit substrate disposed inside the pen-shaped casing structure and at least one varistor disposed inside the pen-shaped casing structure and electrically connected to the circuit substrate. The power supply unit includes at least one power supply component disposed inside the pen-shaped casing structure and electrically connected to the circuit substrate. The pen head unit includes a pen head structure movably disposed inside the pen-shaped casing structure and an elastic structure disposed between the pen head structure and the varistor. The pen head structure has an exposed contacting portion exposed from the pen-shaped casing structure. Whereby, a predetermined pressure generated by pushing the pen head structure is transmitted to the varistor through the elastic structure.
    Type: Application
    Filed: November 22, 2013
    Publication date: April 2, 2015
    Applicant: WALTOP INTERNATIONAL CORPORATION
    Inventor: YU-CHIEH HO
  • Publication number: 20150084935
    Abstract: An electromagnetic and capacitive pointer is disclosed. The electromagnetic and capacitive pointer comprises a tube assembly and a conductive tube assembly, a first and a second ferrite cores, an non-magnetic and conductive pin, a control circuit board, a conductive pin holder and a holder. The non-magnetic and conductive pin, the conductive pin holder, the holder, the control circuit board and the conductive tube assembly constitute a conductive path.
    Type: Application
    Filed: April 1, 2014
    Publication date: March 26, 2015
    Applicant: WALTOP INTERNATIONAL CORPORATION
    Inventor: CHIEN-CHIA LIEN
  • Publication number: 20150084934
    Abstract: An electromagnetic and capacitive pointer is disclosed. The electromagnetic and capacitive pointer comprises a tube assembly and a conductive tube assembly, a ferrite core, an non-magnetic and conductive pin, a control circuit board, a conductive pin holder, a conductive elastomer, a holder and a power source. The non-magnetic and conductive pin, the conductive pin holder, the conductive elastomer, the control circuit board and the conductive tube assembly constitute a conductive path.
    Type: Application
    Filed: January 7, 2014
    Publication date: March 26, 2015
    Applicant: WALTOP INTERNATIONAL CORPORATION
    Inventor: YU CHIEHMR HO
  • Publication number: 20150070297
    Abstract: 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: Application
    Filed: December 7, 2013
    Publication date: March 12, 2015
    Applicant: WALTOP INTERNATIONAL CORPORATION
    Inventors: CHUNG-FUU MAO, CHIA-JUI YEH
  • Publication number: 20150029132
    Abstract: A method for compensating electromagnetic inductive pressure level of an electromagnetic pen is disclosed. First of all, an electromagnetic pen is provided on a touch panel, wherein the touch panel has a sensor layer and at least one sensor coil on a transparent substrate, the sensor coil is located on the peripheral region of the transparent substrate and around the sensor layer. Then the coordinates of the electromagnetic pen are calculated via the sensor layer and a pressure level value is calculated via a frequency of the electromagnetic pen. Next a pressure level compensation value is obtained from a pressure level compensation value table. Finally, a compensated pressure level value is obtained by adding the pressure level value and the pressure level compensation value.
    Type: Application
    Filed: October 1, 2013
    Publication date: January 29, 2015
    Applicant: WALTOP INTERNATIONAL CORPORATION
    Inventors: CHIA-JUI YEH, YU-KUAN CHANG
  • Publication number: 20150029133
    Abstract: A method for compensating electromagnetic inductive pressure level of an electromagnetic pen is disclosed. First of all, an electromagnetic pen is provided on a touch panel, wherein the touch panel has a sensor layer and at least one sensor coil on a transparent substrate, the sensor coil is located on the peripheral region of the transparent substrate and around the sensor layer. Then a signal amplitude of the electromagnetic pen is calculated and a pressure level value is calculated via a frequency of the electromagnetic pen. Next distances between the sensor coil and the electromagnetic pen are calculated to obtain the location of the electromagnetic pen. Then a pressure level compensation value is obtained from a pressure level compensation value table. Finally, a compensated pressure level value is obtained by adding the pressure level value and the pressure level compensation value.
    Type: Application
    Filed: October 2, 2013
    Publication date: January 29, 2015
    Applicant: WALTOP INTERNATIONAL CORPORATION
    Inventors: CHIA-JUI YEH, YU-KUAN CHANG
  • Patent number: 8941626
    Abstract: A method for compensating electromagnetic inductive pressure level of an electromagnetic pen is disclosed. First of all, an electromagnetic pen is provided on a touch panel, wherein the touch panel has a sensor layer and at least one sensor coil on a transparent substrate, the sensor coil is located on the peripheral region of the transparent substrate and around the sensor layer. Then a signal amplitude of the electromagnetic pen is calculated and a pressure level value is calculated via a frequency of the electromagnetic pen. Next distances between the sensor coil and the electromagnetic pen are calculated to obtain the location of the electromagnetic pen. Then a pressure level compensation value is obtained from a pressure level compensation value table. Finally, a compensated pressure level value is obtained by adding the pressure level value and the pressure level compensation value.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: January 27, 2015
    Assignee: Waltop International Corporation
    Inventors: Chia-Jui Yeh, Yu-Kuan Chang
  • Publication number: 20150022485
    Abstract: Disclosure is related to a touch-sensitive panel apparatus, a control circuit, and a method for scanning touch event. The method is generally adapted to sensing a touch event when a touch object is used to contact a touch-sensitive panel device. The method in the beginning includes performing a time-division scanning process for separately scanning a first sensing region and a second sensing region according to a scanning timing scenario. After that, a triggering zone may be sensed when the scanning process finds a touch event. A full-time scanning process is then performed to the triggering zone. A touching position may be determined according to the scanning process. In one further embodiment, the method then verifies an operating frequency for the touch event so as to confirm a triggering event.
    Type: Application
    Filed: October 19, 2013
    Publication date: January 22, 2015
    Applicant: WALTOP INTERNATIONAL CORPORATION
    Inventors: CHANG-HSIEN CHEN, Chih-Hung Huang
  • Publication number: 20150015268
    Abstract: A coil detection circuit thereof for an electromagnetic input device including a plurality of first loop coils and second loop coils includes a first detection unit, a second detection unit and a selection unit. When the selection unit selects one the first loop coils to emit an electromagnetic signal for each one of the second loop coils, each one of the second loop coils forms a second closed loop for receiving the electromagnetic signal, and the second detection unit detects a second signal. When one of the second loop coils forms an open circuit or short circuit, the second detection unit detects an open-circuit signal or a short-circuit signal.
    Type: Application
    Filed: October 29, 2013
    Publication date: January 15, 2015
    Applicant: WALTOP INTERNATIONAL CORPORATION
    Inventor: CHIA-JUI YEH
  • Patent number: 8884931
    Abstract: A handwriting input apparatus used with an electromagnetic pen is disclosed. The handwriting input apparatus comprises a controller, an electromagnetic antenna board, a signal processing circuit and a charging circuit. The signal processing circuit processes the electromagnetic signals received by the electromagnetic antenna board. The charging circuit used to charge the electromagnetic pen includes a first device which is used to output a first voltage to charge the electromagnetic pen after a voltage of the handwriting input apparatus being inputted. The charging circuit further includes a programmable voltage device connecting to the first device. The programmable voltage device is controlled by the controller to change the first voltage according to the detection of the first voltage by the controller.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: November 11, 2014
    Assignee: Waltop International Corporation
    Inventors: Chia-Jui Yeh, A-Li Wong
  • Patent number: D715297
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: October 14, 2014
    Assignee: Waltop International Corporation
    Inventor: Chih-Jen Li