Multifrequency Patents (Class 178/19.07)
  • Patent number: 10318084
    Abstract: An input device may include a matrix electrode array that includes various transmitter electrodes and various receiver electrodes. The transmitter electrodes may be disposed in a first direction. The receiver electrodes may be disposed in a second direction that is substantially parallel with the first direction. The input device may further include a first set of routing traces coupled to the transmitter electrodes and disposed underneath the transmitter electrodes in the first direction. The input device may further include a second set of routing traces coupled to the receiver electrodes and disposed underneath the receiver electrodes in the second direction.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: June 11, 2019
    Assignee: Synaptics Incorporated
    Inventors: Petr Shepelev, Tetsuo Tanemura, Nobukazu Tanaka, Takayuki Noto
  • Patent number: 9927909
    Abstract: Methods, systems, and apparatus relate to capacitive touch sensors with a fine-pointed, active stylus. The active stylus is configured to receive a signal from the capacitive touch sensor for synchronizing a time base of the stylus with the capacitive touch sensor. The active stylus is configured to receive a signal from a matrix of the capacitive touch sensor to measure a first position along one axis, and transmit a signal from the single electrode of the stylus to the matrix to indicate a second position of the stylus along another axis of the matrix. The stylus can transmit the received signal to report the first position of the stylus.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: March 27, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Jonathan Westhues, Jefferson Y. Han
  • Patent number: 9864441
    Abstract: A digitizer system includes a stylus comprising a plurality of transmitters for transmitting signals, wherein each of the plurality of transmitters are distanced from one another by a defined distance, a digitizer sensor operable for sensing signals transmitted by the plurality of transmitters, and circuitry associated with the digitizer sensor for tracking a projected location on the digitizer sensor of each of the plurality of transmitters based on the signals sensed, and for tracking a geometric relationship between the projected locations.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: January 9, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Ilan Geller, Yuval Stern, Alex Kalmanovich
  • Patent number: 9632627
    Abstract: A digital pen comprising a skeleton and a removable skin: the skeleton holding together in fixed relationship: an electric circuit; an acoustic transmitter, detached from said electric circuit, and configured to transmit acoustic signals; and a resilient holder, configured to mechanically press said electric circuit into electrical contact with said transmitter, so as to electrically connect said electric circuit and said transmitter; and the removable skin comprising a housing fitting over said skeleton.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: April 25, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Ran Raif, Noam Kedem, Michael Kokarev, Max Gotman, Nathan Altman
  • Patent number: 9519359
    Abstract: The present invention provides an input apparatus which can include a conductivity tip, a coil electrically connected to the tip, and a ground plate electrically connected to the coil and forming an open loop in a circumference direction of the coil.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: December 13, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: IlDoo Jeong, HaZoong Kim
  • Patent number: 9410824
    Abstract: An electromagnetic induction position detection sensor includes a plurality of loop coils, each being an N-turn loop coil formed by winding a conductor N times (N is an integer equal to or greater than 2), and each coil turn having long side portions that are separated by a predetermined width and that are parallel to each other. The loop coils are arranged at predetermined intervals in a predetermined direction intersecting the long side portions of the loop coils. The width of at least one of the N turns of the Mth loop coil from the edge portion of the sensor in the predetermined direction (M is an integer equal to or greater than 2) is larger than the predetermined width, with the long side portion of this turn of the Mth loop coil arranged more outward than the long side portions of the other turns of the Mth loop coil.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: August 9, 2016
    Assignee: Wacom Co., Ltd.
    Inventor: Takeshi Kobori
  • Patent number: 9310936
    Abstract: An input device for inputting coordinates to a coordinate detector includes an operation detector to detect whether a coordinate input operation to the coordinate detector is conducted; a signal generation unit to generate an operation-in-progress signal indicating an operation is in progress when the operation detector detects the coordinate input operation; a signal outputting unit to output the operation-in-progress signal generated by the signal generation unit; and a light guide member to guide the operation-in-progress signal output by the signal outputting unit to an exit position.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: April 12, 2016
    Assignee: Ricoh Company, Ltd.
    Inventor: Masahiro Kuwata
  • Patent number: 9012793
    Abstract: Methods, systems and devices are described for detecting a position-based attribute of a finger, stylus or other object with a touchpad or other sensor having a touch-sensitive region that includes a plurality of electrodes. Modulation signals for one or more electrodes are produced as a function of any number of distinct digital codes. The modulation signals are applied to an associated at least one of the plurality of electrodes to obtain a resultant signal that is electrically affected by the position of the object. The resultant signal is demodulated using the plurality of distinct digital codes to discriminate electrical effects produced by the object. The position-based attribute of the object is then determined with respect to the plurality of electrodes from the electrical effects.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: April 21, 2015
    Assignee: Synaptics Incorporated
    Inventor: J. Kurth Reynolds
  • Patent number: 8982044
    Abstract: A position detector includes a tablet and a position indicator, which includes a coil and configured to continuously transmit a coil-based signal to the tablet as a position signal and to intermittently transmit the coil-based signal to the tablet as a non-positional signal. The tablet is configured to detect a position on its surface pointed to by the position indicator by detecting the continuously-transmitted coil-based signal, and to determine non-positional information regarding the position indicator (e.g., pen pressure, pen ID, etc.) by detecting the intermittently-transmitted coil-based signal.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: March 17, 2015
    Assignee: Wacom Co., Ltd.
    Inventor: Yuji Katsurahira
  • Patent number: 8952901
    Abstract: A mobile device and a method for providing a User Interface (UI) thereof are provided. The mobile device activates a manipulation unit upon detecting pressure through a pressure detecting unit. Accordingly, the user is able to manipulate various types of UIs, using a combination of pressure and various manipulation units.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: February 10, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Bo-min Kim, Min-kyu Park, Yong-gook Park, Hyun-jin Kim, Tae-young Kang, Han-chul Jung, Ji-sun Yang, Sang-ok Cha
  • Patent number: 8952916
    Abstract: Methods, systems and devices are described for detecting a position-based attribute of a finger, stylus or other object with a touchpad or other sensor having a touch-sensitive region that includes a plurality of electrodes. Modulation signals for one or more electrodes are produced as a function of any number of distinct digital codes. The modulation signals are applied to an associated at least one of the plurality of electrodes to obtain a resultant signal that is electrically affected by the position of the object. The resultant signal is demodulated using the plurality of distinct digital codes to discriminate electrical effects produced by the object. The position-based attribute of the object is then determined with respect to the plurality of electrodes from the electrical effects.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: February 10, 2015
    Assignee: Synaptics Incorporated
    Inventor: J. Kurth Reynolds
  • Patent number: 8847886
    Abstract: A non-contact input apparatus for computer peripheral includes an induction module and a pointing module. The induction module includes an electric supply coil and an induction element, and the pointing module includes an energy coil and a non-linear element. The electric supply coil is used to send a first oscillation signal. The energy coil receives the first oscillation signal. The non-linear element converts the first oscillation signal to be a second oscillation signal having multiple higher harmonics. The induction element generates a control signal based on the second oscillation signal.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: September 30, 2014
    Assignee: Kye Systems Corp.
    Inventors: Ho-Sung Wu, Chih-Min Liu
  • Patent number: 8809702
    Abstract: Methods, systems and devices are described for detecting a position-based attribute of a finger, stylus or other object with a touchpad or other sensor having a touch-sensitive region that includes a plurality of electrodes. Modulation signals for one or more electrodes are produced as a function of any number of distinct digital codes. The modulation signals are applied to an associated at least one of the plurality of electrodes to obtain a resultant signal that is electrically affected by the position of the object. The resultant signal is demodulated using the plurality of distinct digital codes to discriminate electrical effects produced by the object. The position-based attribute of the object is then determined with respect to the plurality of electrodes from the electrical effects.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: August 19, 2014
    Assignee: Synaptics Incorporated
    Inventor: J. Kurth Reynolds
  • Patent number: 8780040
    Abstract: A handwriting input device includes a housing and a nib selectively exposed from a bottom side of the housing or hidden in the housing. The device further includes a pressure sensor, a motion sensor, and a microcontroller. The pressure sensor generates pressure signals when the nib is depressed. The motion sensor senses movement of the device. The microcontroller records the sensed movement upon receiving the pressure signals, and processes the recorded movement to obtain track signals of handwritten information when the duration of not receiving the pressure signals exceeds a predetermined time interval. The track signals of handwritten information are then transmitted to an external electronic device communicating with the device to become handwriting shown on a display of the external electronic device.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: July 15, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Ping-Yang Chuang, Ying-Chuan Yu
  • Patent number: 8641197
    Abstract: An acoustical receiver for detecting an acoustical signal characterized by a wavelength and a pen transcription system utilizing the same are disclosed. The receiver includes a detector that generates an electrical signal in response to acoustical signals in a predetermined frequency range including that wavelength, a housing surrounding the detector, and a receiving horn. The housing has a housing aperture having a maximum dimension less than the acoustical signal wavelength. The receiving horn has a first opening that is adjacent to the housing aperture and a second aperture having a dimension that is greater than the acoustical signal wavelength.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: February 4, 2014
    Assignee: Luidia Inc.
    Inventor: Yao Ding
  • Patent number: 8569636
    Abstract: An angle correcting method for a position pointer induced by a handwritten input device is disclosed. The steps of the method includes: firstly, an inclined angle table is provided. Then, a first induced voltage amplitude of a first position where the position pointer touches and a second induced voltage amplitude of a second position where is near to the first position are induced. The ratio of the first induced voltage amplitude to the second induced voltage amplitude is calculated to generate an amplitude ratio. Finally, the inclined angle table is looked up to find an inclined angle according to the amplitude ratio.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: October 29, 2013
    Assignee: Waltop International Corporation
    Inventors: Yun-Hsiang Yeh, Chang-Sian Chen
  • Patent number: 8519985
    Abstract: A touch screen device includes a circuit board, a power input port located on the circuit board, a main battery electronically connected to the power input port, and a stylus. A backup battery electronically connected to the power input port is located in the stylus. A power control unit is located on the circuit board. The power control unit detects the voltage value of the main battery, and compares the voltage value of the main battery with a predetermined voltage of the touch screen device. According to the comparative result, the power control unit switches between the main battery and the backup battery to provide power supply to the touch screen device.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: August 27, 2013
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited
    Inventors: Yu-Ling Feng, Yong-Gang Zhang, Kuan-Hung Chen
  • Patent number: 8493333
    Abstract: A method of displaying information in a mobile terminal having a touch screen is provided. The method includes determining whether a touch input is generated by a touch screen, determining whether a touch area moves, calculating a movement direction of the touch area by extracting a value of the touch area movement, determining a current mode according to the calculated movement direction of the touch area, executing a function of the current mode corresponding to the extracted value of the touch area movement, and displaying, while executing the function of the current mode, at least one of a displacement value generated by executing the function of the current mode and a current mode icon indicating the current mode. Accordingly, when displaying information according to a touch input, changes of information may be displayed distinctively, and thereby user convenience may be improved.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: July 23, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae Young Kang, Nho Kyung Hong, Yong Ho Choi, Hui Chul Yang, In Won Jong, Min Kyung Lee, Wan Soo Lim
  • Patent number: 8338724
    Abstract: Methods, systems and devices are described for detecting a position-based attribute of a finger, stylus or other object with a touchpad or other sensor having a touch-sensitive region that includes a plurality of electrodes. Modulation signals for one or more electrodes are produced as a function of any number of distinct digital codes. The modulation signals are applied to an associated at least one of the plurality of electrodes to obtain a resultant signal that is electrically affected by the position of the object. The resultant signal is demodulated using the plurality of distinct digital codes to discriminate electrical effects produced by the object. The position-based attribute of the object is then determined with respect to the plurality of electrodes from the electrical effects.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: December 25, 2012
    Assignee: Synaptics Incorporated
    Inventor: J. Kurth Reynolds
  • Patent number: 8314351
    Abstract: Methods, systems and devices are described for detecting a position-based attribute of a finger, stylus or other object with a touchpad or other sensor having a touch-sensitive region that includes a plurality of electrodes. Modulation signals for one or more electrodes are produced as a function of any number of distinct digital codes. The modulation signals are applied to an associated at least one of the plurality of electrodes to obtain a resultant signal that is electrically affected by the position of the object. The resultant signal is demodulated using the plurality of distinct digital codes to discriminate electrical effects produced by the object. The position-based attribute of the object is then determined with respect to the plurality of electrodes from the electrical effects.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: November 20, 2012
    Assignee: Synaptics Incorporated
    Inventor: J. Kurth Reynolds
  • Patent number: 8294675
    Abstract: A touchpad assembly for use in an electronic device is provided. The touchpad assembly may include a touchpad frame operative to be placed within an opening in an electronic device frame. The touchpad assembly may include a support plate for supporting a touchpad, and a bracket for receiving a pick button. The support plate and bracket may be manufactured into a same component to increase the rigidity of the touchpad assembly. The pick button may include a varying height to prevent the pick button from deflecting and to make the pick button travel for providing a selection instruction uniform. The pick button may be coupled to the frame using any suitable approach, including using springs connected the ends of the pick button to the frame. The frame may also include pads to muffle the sound of the pick button when it returns to its initial position after having been pressed.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: October 23, 2012
    Assignee: Apple Inc.
    Inventors: Dinesh Mathew, Chris Ligtenberg, Brett William Degner, Thomas W. Wilson, Jr., John Brock
  • Patent number: 8223136
    Abstract: A stream of raw acoustic data can be received at a client device. The client device can frame the stream of raw acoustic data at particular intervals with alignment information to create framed acoustic data, and buffer the framed acoustic data while waiting for a data request from a host device. In response to receiving the data request, the client device can provide the framed acoustic data to the host device.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: July 17, 2012
    Assignee: Intel Corporation
    Inventors: Yongge Hu, Ying Jia
  • Patent number: 8085247
    Abstract: An oscillating signal of relatively precise frequency is generated by tuning an oscillator using an external stable oscillating source as a reference. Calibration logic is included to compare a signal from the local oscillator to the reference signal and vary the local signal to a desired frequency. In one embodiment, a binary search algorithm is used to tune the local oscillator. The local oscillating signal can be sent to one or more circuits including at least one sensor of a touch sensitive panel for detecting touch events.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: December 27, 2011
    Assignee: Apple Inc.
    Inventor: Thomas James Wilson
  • Patent number: 7903091
    Abstract: A touch panel includes a first supporting substrate, a second supporting substrate that faces the first supporting substrate, a first transparent electrode formed on the first supporting substrate, a second transparent electrode formed on the second supporting substrate, a third transparent electrode formed between the first and second transparent electrodes, a medium layer formed between the first and third transparent electrodes, and a piezoelectric layer formed between the second and third transparent electrodes.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: March 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Won Lee, Deuk-Soo Kim, Kun-Bin Lee, Myung-Sook Jung
  • Patent number: 7868874
    Abstract: Methods, systems and devices are described for detecting a position-based attribute of a finger, stylus or other object with a touchpad or other sensor having a touch-sensitive region that includes a plurality of electrodes. Modulation signals for one or more electrodes are produced as a function of any number of distinct digital codes. The modulation signals are applied to an associated at least one of the plurality of electrodes to obtain a resultant signal that is electrically affected by the position of the object. The resultant signal is demodulated using the plurality of distinct digital codes to discriminate electrical effects produced by the object. The position-based attribute of the object is then determined with respect to the plurality of electrodes from the electrical effects.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: January 11, 2011
    Assignee: Synaptics Incorporated
    Inventor: J. Kurth Reynolds
  • Patent number: 7825904
    Abstract: An information processing apparatus includes a touch panel provided on a menu selection screen including a plurality of items, a direction key for instructing a moving direction of a cursor, and an execution key for instructing execution of a process corresponding to a selecting item. The display of the cursor can be moved according to a position instructed by the touch panel as well as the direction key. A process corresponding to a selected item is executed by a touch-off as well as by an operation of the execution key.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: November 2, 2010
    Assignee: Nintendo Co., Ltd.
    Inventor: Takanori Hino
  • Patent number: 7659888
    Abstract: An electronic apparatus of the present invention has a first unit and a second unit coupled to the first unit through a coupling section which allows the second unit to be opened and closed relative to the first unit and the second unit has a display screen with a pen input function for detecting the contact of a pen or the close position of a pen. The first unit includes a bottom cover, a circuit substrate arranged above the bottom cover, and an upper cover arranged above the circuit substrate. The circuit substrate has a DC-DC converter that is disposed thereon and provided with one or more coils that generate power for operating the electronic apparatus, and at least one of the coils is disposed on the surface of the circuit substrate facing the bottom cover.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: February 9, 2010
    Assignee: Fujitsu Limted
    Inventors: Masahiko Kyouzuka, Masahiko Sato, Takashi Yoshida
  • Patent number: 7570253
    Abstract: A pen-type computer includes a pen barrel, a sensor, a primary processor, and a storage device. The pen barrel has a writing tip. The sensor is disposed in the pen barrel, sensing movement of the writing tip and generating a tracking signal corresponding to the movement of the writing tip. The primary processor is disposed in the pen barrel, encoding the tracking signal into data and storing the data in the storage device.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: August 4, 2009
    Assignee: Fortemedia, Inc.
    Inventor: Yen-Son Paul Huang
  • Patent number: 7489308
    Abstract: An electronic stylus system includes an electronic stylus and base receiving unit. The electronic stylus includes a first ultrasonic transmitter, a second ultrasonic transmitter, an electromagnetic transmitter, and a writing tip. The base receiver unit includes a first ultrasonic receiver, a second ultrasonic receiver, and an electromagnetic receiver. The ultrasonic receivers of the base unit are operable to receive signals transmitted by the ultrasonic transmitters of the electronic stylus. Similarly, the electromagnetic receiver of the base unit is operable to receive signals transmitted by the electromagnetic transmitter of the stylus. The location of the tip of the electronic stylus relative to a given reference point is determined using the locations of two ultrasonic transmitters relative to the two ultrasonic receivers.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: February 10, 2009
    Assignee: Microsoft Corporation
    Inventors: Andrew Blake, Lyndsay Williams, James Srinivasan, William Vablais
  • Patent number: 7218314
    Abstract: A coordinate input device includes a coordinate input element. The coordinate input element includes a transparent coordinate detector and a controller having a control circuit which drives and controls the coordinate detector and which corrects electrostatic capacitance noise disturbing the coordinate detector. The coordinate input device also includes a liquid crystal display device provided on the back side of the coordinate input element, a casing for holding the coordinate input element and the liquid crystal display device, and an L-shaped and a reverse L-shaped push button switches provided on the upper surface of the casing.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: May 15, 2007
    Assignee: Alps Electric Co., Ltd.
    Inventor: Akihisa Itoh
  • Patent number: 6731271
    Abstract: A device has a light-receiving element for receiving light coming from a pointing tool, and a plurality of linear sensors for sensing a beam spot. A controller discriminates if a first signal output from the light-receiving element and a second signal output from the linear sensors are synchronized. A coordinate computation unit outputs a coordinate value corresponding to the beam spot on the basis of the discrimination result.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: May 4, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Tanaka, Masahide Hasegawa, Kiwamu Kobayashi, Masaaki Kanashiki, Yuichiro Yoshimura, Katsuyuki Kobayashi
  • Publication number: 20020084114
    Abstract: c A wireless coordinate input system for a display system includes a stylus that transmits ultrasonic energy to a plurality of ultrasonic receiving stations in a projection plane. The stylus includes one ultrasonic transmitter used for determination of three-dimensional coordinates of the stylus relative to the projection plane. The stylus also includes a second ultrasonic transmitter controlled by a pressure activated switch. When the stylus is pressed against the projection plane, the second transmitter turns on and is used for determination of two-dimensional coordinates of the stylus in the projection plane. The stylus also includes a higher frequency burst transmitter used to generate a time reference. One or more of the ultrasonic receiving stations also includes an ultrasonic transmitter for calibration.
    Type: Application
    Filed: December 29, 2000
    Publication date: July 4, 2002
    Applicant: Intel Corporation
    Inventors: Jianping Xu, Stephen H. Hunt
  • Patent number: 6222522
    Abstract: A position sensor is used in conjunction with one or more batons, each baton having a transmitter that transmits a distinct radio frequency signal at a position in space. The position sensor determines the current position of each baton transmitter in terms of X, Y, and Z coordinates. The position sensor includes a tablet having a flat support member, with at least two pairs of electrodes coupled to the flat support member. Each of the electrodes is a separate antenna. A first pair of the electrodes is shaped so that the amount of capacitive coupling between each baton transmitter and the first pair of electrodes corresponds to the position of the baton transmitter with respect to the X axis. A second pair of the electrodes is shaped so that the amount of capacitive coupling between each baton transmitter and the second pair of electrodes corresponds to the position of the baton transmitter with respect to the Y axis.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: April 24, 2001
    Assignee: Interval Research Corporation
    Inventors: Max V. Mathews, Thomas E. Oberheim
  • Patent number: 6184873
    Abstract: A pen positioning system is provided, in which a pen, having multiple output elements, is adapted to accurately determine the location of the pointing tip of the pen, in relation to an electronic tablet. The output elements, preferably ultrasonic transmitters having distinct frequencies, are located a fixed distance from each other, and are also related in space to the pointing tip of the pen. The geometric relationship between the output elements and the pointing tip of the pen allows the location of the pointing tip to be determined, independent of the angle which the pen is inclined against the surface of the writing tablet. A detection system is used to receive the output signals from the output elements, isolate the output signals from each other, and process them independently to determine the location of the output elements and of the pointing tip of the pen.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: February 6, 2001
    Assignee: Electronics for Imaging, Inc.
    Inventors: Daniel R. Ward, Robert P. Wood, Jacob Harel, Rafi Holtzman