Inductive Patents (Class 178/18.07)
  • Patent number: 10345983
    Abstract: An inputting apparatus of the electromagnetic induction type may provide a transmission signal of a sufficient signal level to a position indicator. A process controlling unit controls a selection circuit on the basis of a reception state of a reception signal received by each of a plurality of electrodes and detected by a reception signal processing circuit such that a first signal for transmitting a transmission signal is supplied to a first electrode at which the reception signal indicates the highest signal level. Further, the process controlling unit controls the selection circuit such that a second signal is supplied to a second electrode at which the signal level of the reception signal is lower than a predetermined signal level. Consequently, signals can be transmitted to a position indicator from both the first electrode, which most receives the signal from the position indicator, and the second electrode spaced from the first electrode.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: July 9, 2019
    Assignee: WACOM CO., LTD.
    Inventors: Takeshi Kobori, Yoshihisa Sugiyama
  • Patent number: 10338748
    Abstract: In one embodiment, a touch sensor comprises a beamsplitter operable to reflect a first portion of light incident on the beamsplitter and transmit a second portion of light incident on the beamsplitter, a substrate, and one or more lines of conductive material disposed on the substrate, the lines of conductive material disposed between the first substrate and the beamsplitter.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: July 2, 2019
    Assignee: Neodrón Limited
    Inventors: Esat Yilmaz, Neerja Saran
  • Patent number: 10326445
    Abstract: A sensing apparatus for determining a pen input point includes a sensing loop unit, including loops, to output a first signal from a pen signal, wherein each loop includes two sub-loops separated by a distance; an area determination loop unit including at least one loop to output a second signal from the pen signal; and a controller to determine input point candidates based on the first signal and determine the input point from the input point candidates based on the second signal, wherein the two sub-loops are in series, wherein one sub-loop of the two sub-loops is disposed inside of an area in which one loop of the area determination loop unit is disposed and another sub-loop of the two sub-loops is disposed outside of the area in which the one loop is disposed, and wherein each loop of the sensing loop unit determines the candidates of the input point.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: June 18, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Byung-Jik Kim
  • Patent number: 10296089
    Abstract: A device includes a housing, a tip configured to be movable with respect to the housing, a resilient element fixed to the tip, a substrate fixed to the housing, a coil mounted or patterned on the substrate, and a controller configured to induce haptic feedback via the tip based on applying a signal to the coil. A surface of the substrate faces the resilient element. The resilient element presses against the surface in response to the tip receding toward the housing. The resilient element includes magnetic material. The signal applied on the coil induces a magnetic driving force on the resilient element.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: May 21, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Ahia Peretz, Vadim Mishalov
  • Patent number: 10268061
    Abstract: In, for example, such an in-cell touch panel of an electromagnetic induction method as to generate a magnetic field for touch detection in a display device, provided is an input detection device in which even an end portion of a display area can generate the same magnetic field as that generated at a center of the display area. The input detection device includes a plurality of first drive electrodes placed in a detection area; a second drive electrode placed in a frame area; and a second drive circuit driving the second drive electrode. In addition, the plurality of first drive electrodes and the second drive electrode extend in a first direction to be arranged in a second direction crossing the first direction, and the second drive electrode and the second drive circuit are arranged in the first direction in the frame area.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: April 23, 2019
    Assignee: Japan Display Inc.
    Inventors: Tadayoshi Katsuta, Hiroshi Mizuhashi
  • Patent number: 10261649
    Abstract: Possibility of erroneous operation caused by a conductive area as a tolerance margin is reduced and electrical properties are prevented from becoming poor.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: April 16, 2019
    Assignee: SMK Corporation
    Inventors: Takayuki Nakase, Tsutomu Inoue
  • Patent number: 10241623
    Abstract: In one embodiment, a touch sensor comprises a beamsplitter operable to reflect a first portion of light incident on the beamsplitter and transmit a second portion of light incident on the beamsplitter, a substrate, and one or more lines of conductive material disposed on the substrate, the lines of conductive material disposed between the first substrate and the beamsplitter.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 26, 2019
    Assignee: Neodrón Limited
    Inventors: Esat Yilmaz, Neerja Saran
  • Patent number: 10175550
    Abstract: Electro-optic, especially electrophoretic, displays are used in variety of architectural and furniture applications, including a tile (100) comprising an electro-optic layer (110) capable of changing the color of the file, front and multiple rear electrodes and a light-transmissive polymeric layer (102), the exposed surface of which is textured to provide a plurality of facets inclined to the plane of the tile (100), the rear electrodes being aligned with the facets. A variable color writable board is also provided.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: January 8, 2019
    Assignee: E Ink Corporation
    Inventors: Richard J. Paolini, Jr., Michael D. McCreary, Carl Taussig, Paul Apen, George G. Harris, Joseph Fillion
  • Patent number: 10139214
    Abstract: Disclosed herein are an apparatus for acquiring the location coordinates of an object to be measured using two measurement heads and a method using the apparatus. The apparatus for acquiring the location coordinates of an object includes two measurement heads for individually detecting a signal corresponding to the object to be measured, a measurement head fixing unit for placing the two measurement heads so as to face each other with the object therebetween, a rotatable structure for rotating the measurement head fixing unit, and a location determination unit for acquiring the location coordinates of the object to be measured based on the strengths of the two detection signals detected by the measurement heads.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: November 27, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyo-Bong Hong, Seung-Min Choi, Chang-Beom Kim
  • Patent number: 10139928
    Abstract: An electronic pen sensing device includes: a substrate including a sensing region and a first sub sensing region, the first sub sensing region having a width smaller than a width of the sensing region; a first closed loop line disposed along edges of the sensing region and wound N times in a first rotation direction from a first node to a second node, and disposed along edges of the first sub sensing region and wound M times in a first rotation direction from the second node to the first node; and a controller configured to calculate a location of an electronic pen based on a first induction current which is output through the first node, wherein N and M are positive integers.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: November 27, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Hyun Lim, Chang-Sub Jung, A-Ra Jo, Jae-Woo Choi
  • Patent number: 10133413
    Abstract: Provided is an input state detection device capable of reliably detecting contact and pressing of an object. A state switching switch can switch a first state in which a voltage application terminal of a constant-voltage power supply is connected to a side of a first electrode and a detection terminal of a detector is connected to a side of second electrodes, and a second state in which the voltage application terminal of the constant-voltage power supply is connected to the side of the second electrodes and the detection terminal of the detector is connected to the side of the first electrode. An input detector detects whether the object is in a non-contact state or in a contact but not pressing state with respect to a surface on the side of the second electrodes based on a value detected by the detector with the state switching switch in the first state.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: November 20, 2018
    Assignee: SUMITOMO RIKO COMPANY LIMITED
    Inventors: Hiroyuki Nakajima, Tomonori Hayakawa, Tetsuyoshi Shibata, Hirokazu Yamamoto
  • Patent number: 10088946
    Abstract: Provided is a coordinate detection device capable of detecting an indicator by either the electromagnetic induction type or the electrostatic capacitance type with a simple configuration and at low cost. The coordinate detection device comprises drive lines 10, detection lines 20, a drive circuit 30, a detection circuit 40, a drive line selection section 50, a detection line selection section 60 and a control section 70. The drive line selection section 50 includes a drive line loop unit 51 end a drive line connection unit 52. The detection line selection section 60 includes a detection line loop unit 61 and a detection line connection unit 62.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: October 2, 2018
    Assignee: XIROKU, INC.
    Inventor: Yasuji Ogawa
  • Patent number: 9843323
    Abstract: A sensing apparatus and method are provided for determining an input point of a touch. A sensing loop unit includes at least one loop. Each of the at least one loop includes two sub-loops separated by a predetermined distance. An area determination loop unit determines one of the two sub-loops of each of the at least one loop that corresponds to the input point. A controller determines a plurality of candidates of the input point based on a first input signal from the sensing loop unit, and determines the input point from among the plurality of candidates of the input point based on a second input signal from the area determination loop unit.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: December 12, 2017
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Byung-Jik Kim
  • Patent number: 9829927
    Abstract: A laptop computer may include a lid, a base, and a cover. The base may be attached to the lid at a first end portion of the base. The base may include a keyboard adjacent to the first end portion of the base and an open portion adjacent to a second end portion of the base. The second end portion of the base may be opposite from the first end portion. The cover may be rotatably attached to the base between the keyboard and the open portion. The cover may be configured to swing from a first position covering the open portion of the base to a second position covering the keyboard.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: November 28, 2017
    Assignee: Google LLC
    Inventor: Alexander Friedrich Kuscher
  • Patent number: 9778777
    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: Grant
    Filed: October 29, 2013
    Date of Patent: October 3, 2017
    Assignee: Wacom Co., Ltd.
    Inventor: Chia-Jui Yeh
  • Patent number: 9773389
    Abstract: Provided is a tactile information supply module. The tactile information supply module includes a receiver for receiving message information from the outside, a controller for converting the message information into a tactile signal, and an operator for providing tactile information to a user based on the tactile signal, wherein the operator includes at least one tactile sensation provider comprising magnetic particles and a matrix material, and wherein the tactile sensation provider is transformed in response to an external magnetic field to provide the tactile information.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: September 26, 2017
    Assignee: CK MATERIALS LAB CO., LTD.
    Inventors: Seoung Hun Do, Hyeong Jun Kim
  • Patent number: 9760215
    Abstract: Methods for determining a touch-and-hold touch event on a touch sensitive interaction surface of a touch sensing device are provided and comprise the steps of: a) determining a touch location of the touch event based on vibrations, such as bending waves, propagating through the interaction surface and b) determining whether the touch event comprises a hold touch event based on a sensed airborne signal. A device configured to carry out such methods is also provided.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: September 12, 2017
    Assignee: Elo Touch Solutions, Inc.
    Inventors: Simon Esteve, Olivier Schevin, Joel C. Kent
  • Patent number: 9746344
    Abstract: A sensor system for detecting a position of a measuring object relative to a sensor, the system including a sensor for the provision of a measured value and an evaluation device for the evaluation of the measured value and for the provision of an evaluation result, wherein the evaluation device includes a comparison device and a timing element, the comparison device is configured for a comparison of a stored measured value with a currently detected measured value, the comparison device is configured for a provision of a control signal to the timing element if a result of the comparison meets a presettable criterion, the timing element is configured in such a way that a time measurement process is continued at the provision of the control signal and the time measurement process is started anew at an absence of the control signal, the timing element is configured in such a way that a trigger signal is output by the timing element on reaching a presettable period of time.
    Type: Grant
    Filed: July 5, 2014
    Date of Patent: August 29, 2017
    Assignee: FESTO AG & CO. KG
    Inventors: Torsten Heineck, Wolfgang Rieder
  • Patent number: 9733733
    Abstract: A capacitive stylus, as an inputting device of a touch sensitive device, comprises a control circuit for emitting signals to the touch sensitive device, a power for providing electricity to the control circuit, two charging rings electrically connecting to the power, and a first magnetic member having a first magnetic pole and a magnetic second pole. The touch sensitive device comprises a recess for placing the capacitive stylus, two charging pads arranged within the recess for connecting with the two charging rings, a charging circuit for charging the power of the capacitive stylus via the two charging pads, and a second magnetic member having a first magnetic pole and a second magnetic pole. The first magnetic member and the second magnetic member assure the charging operation can be correctly proceeded.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: August 15, 2017
    Assignee: Waltop International Corporation
    Inventors: Ying Hwa Tang, A-Li Wong
  • Patent number: 9671910
    Abstract: An electronic device may include a first controller associated with some channels of a digitizer having channels configured to receive a signal from a stylus, and with each channel having a direction. A second controller may be associated with channels of the digitizer not associated with the first controller. The first controller may scan for the signal at each channel associated with the first controller, and based on acquisition of the signal at a given channel associated with the first controller, calculate a property of the signal. The first controller may send the calculated property and the direction of the given channel to the second controller. The first controller and the second controller may scan for the signal at each channel having the direction of the given channel, at acquisition intervals based upon the calculated property.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: June 6, 2017
    Assignee: STMicroelectronics Asia Pacific Pte Ltd
    Inventors: Leonard Dinu, Chao Chao Zhang, Dianbo Guo, Chee Weng Cheong, Eng Jye Ng
  • Patent number: 9658705
    Abstract: A touch control apparatus, a control method thereof and an electronic device having the touch control apparatus are disclosed, which belong to the technical field of touch control. The touch control apparatus comprises: a panel (1); a transmitting antenna (2) arranged on the panel (1) and configured to transmit a detection wave for detecting whether the panel (1) is being touched; at least three resonant circuits arranged on the panel and configured to sense the detection wave and generate resonant waves; and a control processing unit (6) configured to control to process the resonant waves and position information of the resonant circuits to obtain corresponding touch information comprising at least a touch pressure and a touch position. The touch control apparatus, the control method thereof and the electronic device enable touch control of the panel by a general object through utilizing the resonant circuits.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: May 23, 2017
    Assignee: HANWANG TECHNOLOGY CO., LTD.
    Inventors: Guowei Xiang, Yihai Liang, Jian Zhong, Xianjun Wang, Baijun Song, Yanqing Li, Feng Yang
  • Patent number: 9645666
    Abstract: A display device equipped with a touch panel includes a touch panel unit, a touch panel control unit, a pen incline information acquiring unit, a coordinate correction unit, and a display panel unit. The touch panel control unit detects a touch upon a touch panel surface, and acquires touch point coordinate information which is information for specifying a location which is touched on the touch panel surface. The pen incline information acquiring unit acquires pen or input member incline information, which is information relating to an angle which is formed by the touch pen and the touch panel surface when the touch pen and the touch panel face are in contact. The coordinate correction unit corrects, on the basis of the pen incline information, the touch point coordinate information when the line is drawn with the touch pen or input member upon the touch panel screen.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: May 9, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Osamu Nishida
  • Patent number: 9631917
    Abstract: Provided are a position detection method that selects one antenna at a time from a plurality of loop antennas, transmits, through the selected loop antenna, an electromagnetic signal to a pointer that indicates a screen unit, receives, from the pointer, a resonance signal corresponding to the electromagnetic signal transmitted through the selected loop antenna, and extracts polar coordinates including a distance value and an angle value of a point on a screen unit indicated by the pointer, based on a distribution of a signal strength of a resonance signal received through each of the plurality of loop antennas, a position detection apparatus, a display apparatus, and an antenna apparatus appropriate for extracting polar coordinates.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: April 25, 2017
    Assignee: LG Display Co., Ltd.
    Inventor: HaZoong Kim
  • Patent number: 9626009
    Abstract: A coordinate indicating device which inputs coordinates to a coordinate measuring device is provided. The coordinate indicating device includes a power receiver for wirelessly receiving drive power from the coordinate measuring device, a rectifier for rectifying the wirelessly received drive power into Direct Current (DC) drive power, a battery for storing the rectified drive power, an actuator for outputting at least one of preset vibration, frictional force, and electrostatic force, based on relative positions of the coordinate measuring device and the coordinate indicating device by using the rectified drive power provided from the battery, a coordinate indicator for indicating coordinates at predetermined coordinates on the coordinate measuring device, and a shielding portion for shielding the coordinate indicator.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: April 18, 2017
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jin-Hyoung Park, Yu-Dong Bae, Eun-Hwa Lee, Dae-Kwang Jung, Ji-Hoon Jung
  • Patent number: 9601271
    Abstract: A detecting device includes: a measurement coil made up of a first partial coil to which current in a particular direction is induced by a magnetic field to be supplied to a power reception coil configured to receive power, a second partial coil to which the current in the particular direction is induced by the magnetic field, and a third partial coil, which is disposed between the first and second partial coils, to which current in the opposite direction of the particular direction is induced by the magnetic field; a measurement unit configured to measure the voltage of the measurement coil as measurement coil voltage; and a foreign object detecting unit configured to detect a foreign object within the magnetic field based on the measurement coil voltage.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: March 21, 2017
    Assignee: Sony Corporation
    Inventors: Uichiro Omae, Takashi Miyamoto
  • Patent number: 9569041
    Abstract: An electronic device includes a digitizer pad, a touch panel which is disposed above the digitizer pad, a digitizer pad controller configured to detect a first position using electromagnetic induction from the digitizer pad, a touch panel controller configured to detect a second position about a capacitance change from the touch panel, and a host device configured to correct the first position with reference to the second position and specifying the corrected first position as a touch position. A method includes detecting a first position using electromagnetic induction from a digitizer pad, detecting a second position using a capacitance change from a touch panel, correcting the first position with reference to the second position, and specifying the corrected first position as a touch position.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: February 14, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Je-Hyun Son
  • Patent number: 9552113
    Abstract: A touch sensing display device includes: a display panel; a capacitive touch panel disposed on a front surface of the display panel; a digitizer disposed on a surface of the display panel; a sensor driving unit which sequentially applies scanning signals to the capacitive touch panel and the digitizer, where each of the scanning signal is applied simultaneously to the capacitive touch panel and the digitizer; and a sensing unit which senses sensing signals of the capacitive touch panel and the digitizer, in which the sensing unit receives the sensing signal of the capacitive touch panel and the sensing signal of the digitizer at different times.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: January 24, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: In Cheol Kim, Seung Ho Nam, Yoon Gyu Lee, Won-Ki Hong, Seong Mo Hwang
  • Patent number: 9477330
    Abstract: A method for detecting orientation of a stylus with respect to a digitizer sensing surface includes detecting a signal emitted by a stylus at a plurality of coordinates on a digitizer sensing surface, determining coordinate of a writing tip of the stylus, defining at least one feature characterizing an asymmetrical spread of the stylus signal on the digitizer sensing surface with respect to the writing tip coordinate, and characterizing an orientation of the stylus responsive to the characterization of the asymmetrical spread.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: October 25, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Yuval Stern
  • Patent number: 9474466
    Abstract: A location pad includes a housing having a flat surface and multiple field generators. The multiple field generators are fixed to the housing and are configured to generate respective magnetic fields having respective axes that are perpendicular to the flat surface.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: October 25, 2016
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: Assaf Govari, Yaron Ephrath, Andres Claudio Altmann, Vadim Gliner
  • Patent number: 9471183
    Abstract: A mobile device providing a mobile processing function such as a mobile telephone and/or a personal digital assistant. The mobile device includes a mobile device body, a processing system within the body providing at least part of the mobile processing function, a projector coupled to the body to project an image onto a substantially planar surface when the mobile device body is on the surface such that the projector projects at a predetermined angle relative to the surface, and a pen-location transcription system coupled to the processing system to record the positions of a writing implement or stylus at a plurality of instants of time by transmitting acoustic energy between the writing implement or stylus and a device mechanically coupled to the mobile device body.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: October 18, 2016
    Assignee: PNF CO., LTD.
    Inventors: Ari Birger, Philip A. Weaver
  • Patent number: 9436342
    Abstract: A screen comprising a transparent panel and a photon-generating layer in order to form each luminous pixel visible through the transparent panel, this layer being housed behind the transparent panel. There is a human/machine interface able to control the photon-generating layer in order to modify the display of an image by the screen. The interface includes a localizing device for localizing a movable permanent magnet able to be moved directly by hand by a human being in front of the panel, this device comprising for this purpose. The interface also includes a network of magnetometers comprising N tri-axis magnetometers mechanically connected to one another with no degree of freedom in order to maintain a known distance between each of these magnetometers, where N is a whole number higher than or equal to five.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: September 6, 2016
    Assignee: Commissariat à l'énergie atomique et aux énergies alternatives
    Inventors: Tristan Hautson, Timothée Jobert, Jean-Luc Vallejo
  • Patent number: 9436319
    Abstract: A coordinate input apparatus which detects a position pointed in a region surrounded by at least four sensor units, based on detection outputs from two sensor units corresponding to the pointed position out of the at least four sensor units stores, in a memory unit, correction values which are based on respective detection outputs of a plurality of combinations each of two sensor units out of the at least four sensor units for one position corresponding to the plurality of combinations, and calculates the pointed position based on the detection outputs from two sensor units corresponding to the pointed position, and the correction values stored in the memory unit.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: September 6, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Akihiro Matsushita
  • Patent number: 9430069
    Abstract: A touch scanning method includes, in the absence of a touch, performing a coarse scanning on the touch screen, and in the presence of a touch, performing a fine scanning on a full detection-activated region containing a touch point while performing the coarse scanning on the remaining region other than the full detection-activated region. During coarse scanning, in first M frames of M+N successive frames, drive lines spaced apart from one another by at least one of the drive lines are driven, and sense lines spaced apart from one another by at least one of the sense lines are detected. In the succeeding N frames of the M+N frames, there is no activity in the drive and sense lines. During the fine scanning, each drive line and each sense line within the full detection-activated region is driven and detected, respectively.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: August 30, 2016
    Assignees: Shanghai AVIC OPTO Electronics Co., Ltd., Tianma Micro-Electronics Co., Ltd.
    Inventors: Zhifeng Zhu, Xupeng Wang, Baolei Guo, Shanrong Wang, Xiaoyuan Ding
  • Patent number: 9395840
    Abstract: An electronic device includes a shell and a touch panel located in the shell. The touch panel includes a touch sensing unit, a signal transmitting circuit, a signal guiding circuit, a protection unit, and a driving unit. The signal transmitting circuit is electrically connected to the touch sensing unit and the driving unit. The signal guiding circuit surrounds the touch sensing unit and the signal transmitting circuit. The protection unit is electrically connected to the signal guiding circuit and ground. At least one switch signal is outputted from the driving unit and transmitted to the signal transmitting circuit and the signal guiding circuit. An external interference signal is received by the signal guiding circuit and guided to ground via the protection unit.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: July 19, 2016
    Assignee: Shih Hua Technology Ltd.
    Inventors: Po-Sheng Shih, Chien-Yung Cheng
  • Patent number: 9395862
    Abstract: An electronic device includes an electromagnetic inductive type touch pen and a pen touch panel for recognizing the touch pen. The touch pen includes a hollow housing having a certain length, a coil body installed in the housing and including a coil wound a plurality of times and having a certain length, a magnetic body installed to be separated from the coil body with a certain interval and inducing the coil body to generate a certain resonance frequency, and a button unit installed to expose a part thereof to the outside of the housing and to be flowable and inducing a variance in the resonance frequency of the coil body by controlling an electric length of the coil wound around the coil body according to an operation of a user.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: July 19, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jin Kim
  • Patent number: 9373028
    Abstract: A handwriting input system includes a handwriting pen, a handwriting plate and a processing unit. The handwriting pen includes a pen body, a first sensing unit and a first communication unit. The first sensing unit senses an action of the pen body to generate a sensing data. The handwriting plate includes a touch unit, a display unit and a second communication unit. The touch unit senses a contact trajectory and a contact time while the handwriting pen contacts the handwriting plate. The processing unit is selectively disposed in one of the handwriting pen and the handwriting plate. The processing unit calculates a tilt angle of the pen body according to the sensing data, determines a contact shape according to the tilt angle, determines an ink output amount according to the contact time, and determines a handwriting image according to the contact trajectory, the contact shape and the ink output amount.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: June 21, 2016
    Assignees: Qisda (Suzhou) Co., Ltd, Qisda Corporation
    Inventor: Yu-Teng Tung
  • Patent number: 9256301
    Abstract: In one embodiment, a method includes receiving a first signal at a stylus. The stylus is able to wirelessly transmit signals to and receive signals from a device. The stylus includes one or more electrodes in a tip of the stylus. A frequency characteristic of the first signal is determined. A second signal is generated based at least in part on the frequency characteristic of the first signal. The second signal is wirelessly transmitted from the stylus to the device through a touch sensor of the device.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: February 9, 2016
    Assignee: Atmel Corporation
    Inventor: Martin J. Simmons
  • Patent number: 9213455
    Abstract: In one embodiment, at least one resonant circuit in a stylus receives a first signal from a touch sensor of a device. The first signal is received at the resonant circuit by capacitive coupling between the resonant circuit and a conductive element of the device's touch sensor. A second signal based on the first signal and at least one of the at least one resonant circuit is then transmitted from the stylus to the device by capacitive coupling between the stylus and the touch sensor of the device.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: December 15, 2015
    Assignee: Atmel Corporation
    Inventors: Ronald Ih, James D. Lyle
  • Patent number: 9189087
    Abstract: An input system and a method for detecting touch using the same are provided. An input system includes: a sensor panel including first and second channels crossing each other, a stylus pen including: a first coil and a second coil divided from each other, a resonance capacitor and a switch serially connected to the second coil, and a conductive tip connected to the first coil, a stylus ground connected to the stylus pen, an antenna loop formed in an outer region of the sensor panel, and a touch controller connected to the first and second channels and the antenna loop.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: November 17, 2015
    Assignee: LG Display Co., Ltd.
    Inventor: Ha-Zoong Kim
  • Patent number: 9164610
    Abstract: A touch display device may include an organic light emitting diode (OLED) display panel that includes scan lines, data lines, and OLED cells, and a driver to display a touch position on a screen (of the OLED display panel) in a frame that includes a touch subfield. The driver may supply at least one scan sync signal to the scan lines and supply at least one data sync signal to the data lines during one frame. The touch subfield may include a vertical touch subfield to detect a vertical position of the touch position and a horizontal touch subfield to detect a horizontal position of the touch position.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 20, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Byeongkil Ahn, Seonghak Moon, Taehyung Kim
  • Patent number: 9160331
    Abstract: In one embodiment, a method includes in an inductive-sensing mode, by a controller, applying an alternating-current (AC) signal on a first electrode of a capacitive touch sensor. The capacitive touch sensor is configured to operate in the inductive-sensing mode and a capacitive-sensing mode. The method also includes sensing a signal indicative of a magnetic field on the first electrode. The signal is due at least in part to a magnetic field generated by the object and the magnetic field is generated at least in part in response to the AC signal applied on the first electrode. The method also includes determining a position of the object generating the magnetic field based on the signal indicative of the magnetic field.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: October 13, 2015
    Assignee: Atmel Corporation
    Inventors: Vemund Kval Bakken, Trond Jarle Pedersen, Yassar Ali
  • Patent number: 9158392
    Abstract: A touch pen is provided. The touch pen is configured such that an indication point, which is indicated on a touch panel when the touch pen slantingly contacts the touch panel, is corrected to a contact point of the touch pen.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: October 13, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Myeong-Sil Park, Sung-Soo Park
  • Patent number: 9141229
    Abstract: A coordinate input device and a touch panel device determine a correction value with a plurality of output values obtained from a plurality of sensors arranged in a touch panel based on the output value of a 1st peak sensor that outputs the largest output value, the output value of a 2nd peak sensor having the second largest output value, the output value of a 3rd peak sensor having the third largest output value, and the output value of a 4th peak sensor having the fourth largest output value.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: September 22, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yuichi Okano, Shogo Yoneyama, Yuichi Sasaki, Seiichiro Mori, Takenori Kawamata
  • Patent number: 9081424
    Abstract: A method of compensating an error of an input device and an apparatus thereof. An electromagnetic induction pen including a coil for electromagnetic induction spaced apart from a nib of the pen is prepared. A sensor board is provided in the apparatus in which a voltage or current for electromagnetic induction of the electromagnetic induction pen output. A disposition state of the sensor board is determined. The voltage or the current is adjusted and provided to the sensor board formed according to a sensed rotation state of the sensor board or terminal in order to compensate for an error generated due to a distance between the nib and the coil. An error is compensated for by allowing coordinates according to the electromagnetic induction formed on the sensor board and varied with the rotation disposition state of the sensor board to correspond to a position of the nib.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: July 14, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jinman Kim, Junhui Lee, Byungkyu Kim, Sungbin An
  • Patent number: 9052785
    Abstract: A position detecting device is disclosed for use with a position indicator. The position detecting device includes a coil substrate, a magnetic path material, and a shield material. A coil for generating an alternating magnetic field for electromagnetic coupling with the position indicator is disposed on the coil substrate. The magnetic path material is composed of a material having such permeability as not to disturb direct current magnetic flux but to form a magnetic path for the alternating magnetic field generated by the coil, and having predetermined electrical resistance for suppressing flow of an eddy current in order to enhance the material's performance as a magnetic path. The shield material is a non-magnetic substance that does not disturb the direct current magnetic flux due to the direct current magnetic field and that has electrical conductivity for generating an eddy current based on the alternating magnetic field.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: June 9, 2015
    Assignee: Wacom Co., Ltd.
    Inventor: Toshihiko Horie
  • Patent number: 9035871
    Abstract: An apparatus, and an associated method, forms a user interface permitting input of input instructions to an electronic device. Input commands are evidence by tactile input forces applied to a force receiving surface. Force sensing elements are positioned to sense indications of the tactile input force. The force sensing element is caused to exhibit a selected input parameter value through application of a selected force thereto by application of a tightening torque to a fastener positioned in proximity to the force sensing element.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: May 19, 2015
    Assignee: BlackBerry Limited
    Inventors: Patrick Clement Strittmatter, Marc Edward Holbein, Rene Pierre Marchand, Angela Dawn Usiski
  • Patent number: 9032292
    Abstract: The present disclosure provides for a touch screen electronic device to display two or more running applications simultaneously in a side-by-side layout in a split screen mode of the device. Two or more applications that are running on an operating system of the device can be easily displayed simultaneously in the split screen mode while maintaining one of the displayed applications as active so that the user can provide user inputs to the active application.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: May 12, 2015
    Assignee: BlackBerry Limited
    Inventor: Joshua John Lavallee
  • Patent number: 9024909
    Abstract: An apparatus including a capacitance touch sensor arrangement configured to have a variable capacitance that varies when a user finger touches the capacitance touch sensor arrangement; and at least one variable resistor sensor integrated within the capacitance touch sensor arrangement wherein the variable resistor sensor has a variable resistance that varies with a sensed parameter; the apparatus including an input configured to receive an input signal including a time varying component and an output configured to provide an output signal that depends upon both the capacitance of the capacitance touch sensor arrangement and the resistance of the variable resistance sensor.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: May 5, 2015
    Assignee: Nokia Corporation
    Inventors: Richard White, Jani Kivioja, Darryl Cotton, Samiul Md Haque, Piers Andrew, Tapani Ryhanen
  • Patent number: 9018547
    Abstract: A method for dynamically updating at least one pre-defined value of a parameter used to identify at least one operational mode of an object for user interaction with a digitizer sensor during interaction with the digitizer sensor comprises detecting signal outputs from a plurality of sensing elements of a digitizer sensor during user interaction with the digitizer sensor; characterizing a pattern formed by the signal outputs from the plurality of sensing elements; identifying a pre-defined event associated with an operational mode of the object based on the pattern; determining a value of the parameter from the signal outputs in response to identification of the pre-defined event; and updating the pre-defined value used to identify the operational mode based on the value of the parameter determined from the identified event.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: April 28, 2015
    Assignee: N-trig Ltd.
    Inventors: Ori Rimon, Ariel Kerner
  • Patent number: 9001060
    Abstract: A method of generating a keyboard switch haptic sensation in a coupled system comprising a touch-sensitive surface and a force exciter or actuator coupled to the touch-sensitive surface, the method comprising generating a carrier wave signal at frequencies within the frequency bandwidth of the coupled system, modulating the carrier wave signal with a modulation envelope so that the modulated carrier wave signal has a closely spaced pair of peaks, and driving the exciter or actuator with the modulated carrier wave signal to excite the touch-sensitive surface to provide a closely spaced pair of impulses whereby the keyboard switch haptic sensation is simulated to a user touching the touch-sensitive surface.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: April 7, 2015
    Assignee: New Transducers Limited
    Inventor: Neil John Harris