Capacitive Actuation Patents (Class 341/33)
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Publication number: 20140375481Abstract: A keypad is described. The keypad comprises: a keypad housing defining a plurality of key apertures; a plurality of physical keys, each physical key located in a respective key aperture and being moveable with respect to the key aperture; and a non-contact (for example, capacitive) sensing layer located beneath the plurality of keys. A touch controller is coupled to the capacitive sensing layer and is operable to ascertain a touch location corresponding to a depressed key. A cryptographic controller may be provided in communication with the touch controller and is operable to interpret the touch location.Type: ApplicationFiled: June 25, 2013Publication date: December 25, 2014Inventor: Grant A. McNicoll
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Patent number: 8866641Abstract: A device (2600) includes a controllable skin texture (2606) defining a keypad (2610), a sensor (2602), and control logic (200). The sensor senses a proximity of a pointing element (2900) to a particular key (2800, 2808, 2902, 2908) of the keypad based on a user input. The control logic adjusts a height of the particular key with respect to another key of the keypad in response to the sensor sensing the proximity of the pointing element to the particular key. In one example, the device includes a display (2700) for displaying a plurality of keys (2612). The control logic adjusts visual characteristics of the particular key (2800, 2808, 2902, 2908) and an adjacent key (2802, 2810, 2904, 2910) with respect to each other and with respect to other keys of the plurality of keys in response to the sensor sensing the proximity of the pointing element to the particular key.Type: GrantFiled: November 19, 2008Date of Patent: October 21, 2014Assignee: Motorola Mobility LLCInventors: Michael E. Caine, Theodore R. Arneson, William N. Robinson
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Patent number: 8860547Abstract: A wearable control terminal for allowing a user to control a target object includes a contact detector, an impact detector, a motion detector, and a transmitter. The contact detector is mounted on a surface of a first portion of a user's body to detect whether the first portion is in contact with or separated from a second portion of the body based on whether a closed loop conducting path is formed with the first portion and the second portion. The impact detector detects an impact on the control terminal. The motion detector detects a motion of the user based on the results of detection by the contact detector and the impact detector. The transmitter transmits a control signal to the target object according to the detected motion.Type: GrantFiled: June 26, 2012Date of Patent: October 14, 2014Assignee: DENSO CORPORATIONInventors: Isao Aichi, Ichiro Akahori, Saori Noda
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Patent number: 8830188Abstract: An interactive wall provides tactile feedback based on detected touch and displayed content on the wall surface. Upon detecting a touch on the wall surface, the interactive wall provides real time tactile feedback corresponding to the touch employing one or more actuators. The interactive wall itself may serve as projection surface for the display or a wall-size display be affixed to the wall trans-conducting tactile feedback to the user.Type: GrantFiled: June 21, 2011Date of Patent: September 9, 2014Assignee: Microsoft CorporationInventors: William Verthein, Josh Watson, Stephen Lee
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Patent number: 8823675Abstract: A device includes a substrate, a top touch panel, and an electrode supported by the substrate including a conductive compressible material extending from the substrate to the top touch panel. Another electrode is supported by the substrate and arranged to form an electric field coupling with the electrode including the compressible material. A touch sensitive region is transferred from the substrate to the top touch panel by the compressible material.Type: GrantFiled: October 2, 2009Date of Patent: September 2, 2014Assignee: Atmel CorporationInventor: Peter Sleeman
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Patent number: 8786554Abstract: Apparatus and methods are described for selecting which of a plurality of simultaneously activated keys in a keyboard based on an array of capacitive sensors is a key intended for selection by a user. Combinations of keys which are commonly activated simultaneously when a user intends to select a single key are identified and associated with the single keys most likely to give rise to the identified combinations during normal use of the keyboard. In use, an observed combination of simultaneously activated keys is compared with predefined combinations of keys corresponding to those identified as being commonly activated simultaneously. If the combination of activated keys matches one of the predefined combinations, the most likely intended key associated with the matched one of the predefined combination of keys is taken to be most likely intended key.Type: GrantFiled: May 18, 2007Date of Patent: July 22, 2014Assignee: Atmel CorporationInventor: Luben Hristov
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Patent number: 8760413Abstract: In one or more embodiments, a device includes a surface and an actuator mechanism operably associated with the surface. The actuator mechanism is configured to provide tactile feedback to a user responsive to an electrical signal. In at least some embodiments, the actuator mechanism comprises a pair of spaced-apart substrates each of which supports a conductive layer of material. A dielectric material and an adjacent air gap may be interposed between the substrates. Drive circuitry is operably connected to the spaced-apart substrates and is configured to drive the conductive layers of material with an electrical signal. This signal may be responsive to sensing a touch input on the surface or other appropriate event.Type: GrantFiled: October 15, 2009Date of Patent: June 24, 2014Assignee: Synaptics IncorporatedInventors: Cody George Peterson, Douglas M. Krumpelman, Andrew P. Huska
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Publication number: 20140145865Abstract: A touch device includes the following elements. A touch panel has two panel analog circuits and a panel digital circuit. Two inverting modules are assembled to two neighboring sides of the touch panel respectively, electrically coupled to the two panel analog circuits, and each electrically coupled to the panel digital circuit. A controlling module is assembled to the touch panel. The two inverting modules process analog signals transmitted from the two analog circuits into digital signals that are transmitted to the controlling module through the panel digital circuit. Therefore, the touch device may decrease a layout width that is occupied by the panel analog circuit.Type: ApplicationFiled: November 15, 2013Publication date: May 29, 2014Applicant: YOUNG LIGHTING TECHNOLOGY INC.Inventors: Wen-Pao Tsai, Chin-Lung Chen
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Patent number: 8723832Abstract: A method for actuating a tactile interface layer for a device that defines a surface with a deformable region, comprising the steps of detecting a gesture of the user along the surface of the tactile interface layer that includes a movement of a finger of the user from a first location on the surface to a second location on the surface; interpreting the gesture as a command for the deformable region; and manipulating the deformable region of the surface based on the command.Type: GrantFiled: October 15, 2013Date of Patent: May 13, 2014Assignee: Tactus Technology, Inc.Inventors: Craig Ciesla, Micah Yairi, Nathaniel Mark Saal
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Patent number: 8698001Abstract: An electrode structure is provided. The electrode structure comprises a plurality of first conductive cells and second conductive cells separated from each other and disposed on a substrate; a plurality of first conductive lines connecting adjacent said first conductive cells and a plurality of second conductive lines connecting adjacent said second conductive cells; wherein each said second conductive line comprises a conducting element and a pair of second conductive branches disposed at two sides of said conducting elements and connecting said conducting element to adjacent said second conductive cells; said first conductive lines and said second conductive lines are insulated and intersected. The method of forming an electrode structure is also provided.Type: GrantFiled: August 16, 2011Date of Patent: April 15, 2014Assignee: TPK Touch Solutions (Xiamen) IncInventors: Jing Yu, Huilin Ye, Rongwa Wang
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Patent number: 8665224Abstract: A capacitance touch sensor includes a square wave generator for generating a square wave clock, a sensor panel for receiving the square wave clock and then generating a panel signal, a peak detector for receiving the panel signal and then generating an analog peak signal, an analog-to-digital converter for receiving the analog peak signal and then generating a digital peak signal, and a control unit for receiving the digital peak signal and generating a detection signal according to a level of the digital peak signal to indicate whether the sensor panel is touched or not.Type: GrantFiled: April 14, 2008Date of Patent: March 4, 2014Assignee: Generalplus Technology Inc.Inventors: Tung-Tsai Liao, Li Sheng Lo, Chih Hsiang Yang
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Patent number: 8624759Abstract: In accordance with an example embodiment of the present invention, an apparatus is provided, comprising: a base element; a key top configured to pivot in relation to the base element; a first electrode coupled with the key top; a second electrode coupled with the base element; an isolating layer; the key top having a first pivoted position in which the first electrode, the second electrode, and the isolating layer form a capacitor with a first capacitance, and a second pivoted position in which the first electrode, the second electrode, and the isolating layer form a capacitor with a second capacitance.Type: GrantFiled: May 19, 2010Date of Patent: January 7, 2014Assignee: Nokia CorporationInventors: Jani Christian Maenpaa, Dimitrios Dimaras
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Patent number: 8604944Abstract: Systems, methods and apparatus for a scalable quantum processor architecture. A quantum processor is locally programmable by providing a memory register with a signal embodying device control parameter(s), converting the signal to an analog signal; and administering the analog signal to one or more programmable devices.Type: GrantFiled: September 8, 2011Date of Patent: December 10, 2013Assignee: D-Wave Systems Inc.Inventors: Andrew J. Berkley, Paul I. Bunyk, Geordie Rose
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Patent number: 8606177Abstract: Provided are an apparatus and a method for controlling human body contact of ground electrode, and a human body communication system using the same. The apparatus includes a resistance measuring unit for applying a predetermined voltage to a human body through a signal electrode, to measure a resistance value between the signal electrode and the ground electrode; a contact control unit for determining whether the ground electrode needs to contact the human body by using the measured resistance value, to provide control information associated with human body contact; and a contact performing unit for bringing the ground electrode into contact or out of contact with the human body according to the control information.Type: GrantFiled: March 21, 2008Date of Patent: December 10, 2013Assignees: Samsung Electronics Co., Ltd., Electronics and Telecommunications Research InstituteInventors: Jung-Hwan Hwang, Sung-Weon Kang, Kyung-Soo Kim, Jung-Bum Kim, In-Gi Lim, Chang-Hee Hyoung, Sung-Eun Kim, Duck-Gun Park, Jin-Kyung Kim, Hyung-Il Park
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Patent number: 8581871Abstract: A narrow frame touch input sheet, and a conductive sheet used in the narrow frame touch input sheet, are suitable for a capacitive touch sensor having a narrow frame and two layers of transparent conductive film patterns. The conductive sheet includes one or more transparent base sheets stacked into a layer, transparent conductive films, light-excluding conductive electrode films, and first resist layers, which are layered sequentially on the uppermost and lowermost surfaces thereof. The first resist layers are exposed simultaneously on both surfaces, and after development, the transparent and light-excluding conductive electrode films are simultaneously etched, the first resist layers are stripped away, then second resist layers are formed as coating on the both surfaces in an outer edge portion, so that the light-excluding conductive electrode films are etched only in the central window portions. Thus, circuit patterns of the transparent conductive films are exposed.Type: GrantFiled: September 8, 2010Date of Patent: November 12, 2013Assignee: Nissha Printing Co., Ltd.Inventors: Yoshihiro Sakata, Takao Hashimoto, Yoshihiro Kai, Yuji Morikawa
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Patent number: 8564557Abstract: A method for parallel-scanning differential touch detection is disclosed herein. The method includes generating a plurality of first outputs by a differential unit according to a plurality of first inputs provided by a plurality of sensors of a touch panel in each scan of total i scans, herein, the kth first output in the jth scan of the total i scans is the (i*(k?1)+j)th output in the continuous first outputs, i?2, j?1, k?1, and i, j, k are natural numbers. Wherein, the differential unit has a plurality of subtractors and the inputs of the subtractors are connected in series. By doing so, the noises between a touch panel and a display can be eliminated.Type: GrantFiled: October 11, 2010Date of Patent: October 22, 2013Assignee: Egalax—Empia Technology Inc.Inventors: Chin-Fu Chang, Cheng-Han Lee, Chi-Hao Tang, Shun-Lung Ho
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Publication number: 20130271302Abstract: Configurable buttons for electronic devices such as portable electronic devices are provided. A configurable button may have a button member that moves relative to a device housing when it is desired to activate a switch. The button may have an associated touch sensor. The touch sensor may detect when a user's finger touches a particular portion of the button member. Contact with only this portion of the button member is generally inadvertent, so an actuator may be used to prevent or otherwise restrict motion of the button relative to a device housing. This prevents inadvertent activation of the button when a user is manipulating portions of an electronic device such as clip or lid, but does not intend to depress the button.Type: ApplicationFiled: June 4, 2013Publication date: October 17, 2013Inventors: John Benjamin Filson, Stephen Brian Lynch, Emery Sanford, Jan Moolsintong
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Patent number: 8547114Abstract: An apparatus and method for converting a capacitance measured on a sensor element to a digital code. The apparatus may include a switching capacitor as a sensor element of a sensing device, and a sigma-delta modulator coupled to the sensor element to convert a capacitance measured on the sensor element to a digital code. The switching capacitor is in a feedback loop of the sigma-delta modulator. The method may include measuring a capacitance on a sensor element of a sensing device using a sigma-delta modulator, and converting the capacitance measured on the sensor element to a digital code.Type: GrantFiled: November 14, 2006Date of Patent: October 1, 2013Assignee: Cypress Semiconductor CorporationInventor: Viktor Kremin
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Patent number: 8537036Abstract: A device for transferring keyboard commands from a user to an electronic apparatus or machine. An arm intended to be carried by the user as a headset, is provided with signal sensors responding to the presence or pressure of the user's tongue by emitting an electric signal or impulse. A signal unit registers and converts signals from the sensors into corresponding keyboard commands which are then input to the electronic device or machine. The device thus basically works as a keyboard where the signal sensors constitute keys that can be operated solely by the tongue, i.e. without involving the hands.Type: GrantFiled: September 26, 2008Date of Patent: September 17, 2013Assignee: Brusell Communications ABInventors: Tomas Brusell, Mats Ekström
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Patent number: 8508374Abstract: A motor power module is provided that includes a control board mounted to the terminals of a relay. The control board includes a control circuit with a processor. The processor is operative to monitor a level of current supplied by the control circuit to at least one windings terminal connected to a single phase AC motor. The processor is responsive to monitored level of current corresponding to a predetermined level to cause the control circuit to remove a supply of electrical power from a start capacitor of the start windings of the motor while the control circuit continues to supply electrical power to the run windings of the motor.Type: GrantFiled: June 28, 2010Date of Patent: August 13, 2013Assignee: SJE-RhombusInventors: Aaron R. Wolfe, William D. Chandler, Jr., Louis R. Calkins
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Patent number: 8508244Abstract: System and method for optimizing the consumption of power while maintaining performance in capacitive sensor arrays. A limited sensing area is used to improve the update rate and sensitivity of a row/column array of capacitive sensors. According to one embodiment, a method is provided for scanning a plurality of capacitive sensors by: detecting a stimulus in the field of capacitive sensors, scanning the field of capacitive sensors to determine the position of the stimulus. Once the position of the stimulus is determined, a subsection of the field comprising window corresponding to the position of the stimulus remains activated while the remaining sensors in the field are deactivated.Type: GrantFiled: July 3, 2008Date of Patent: August 13, 2013Assignee: Cypress Semiconductor CorporationInventor: Ryan D. Seguine
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Patent number: 8497786Abstract: A touch sensitive capacitive keypad (200) is provided that multiple electrodes (201-210) and associated wire connectors (220-229) formed under a touch panel in a single layer of conductive material, where the electrodes (201-210) are arrayed in relation to a keypad to form unique combinations of two electrodes per key, where each electrode is shared with only immediately adjacent keys. The electrodes are sized and arranged so that a first electrode (e.g., electrode E4 205) associated with a given key (e.g., the “5” key) is sized and arranged so that it is shared by only surrounding keys (e.g., the “4,” “7,” and “8” keys), while a second electrode (e.g., electrode E3 204) associated with the given key (e.g., the “5” key) is sized and arranged so that it is shared by only surrounding keys (e.g., the “2,” “3” and “6” keys). As a result, the area for each capacitive electrode is at least twice the area of a given key.Type: GrantFiled: March 26, 2009Date of Patent: July 30, 2013Assignee: Freescale Semiconductor, Inc.Inventors: Oscar Alejandro Camacho, Daniel G. Morfin
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Patent number: 8497844Abstract: A capacitive touch panel has a plurality of first conductor lines and a plurality of second conductor lines. The first conductor lines are disposed in a first direction for sensing a contact with an object. The second conductor lines are disposed in a second direction to be intersected insulatively with the first conductor lines so as to define an overlapping region at each intersection of a first conductor line and a second conductor line. As a driving signal is applied to one of the second conductor lines, the overlapping region defined at the intersection forms a capacitance. Each of the first conductor lines defines at least one opening in each of the overlapping regions.Type: GrantFiled: November 2, 2010Date of Patent: July 30, 2013Assignee: Orise Technology Co., Ltd.Inventors: Lin-Chien Chen, Yen-Lin Huang
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Patent number: 8487788Abstract: In a method for determining actuation of a first capacitive button having a first set of at least three sensor electrode elements associated with at least three distinct sensor electrodes, and wherein a sensor electrode element of the first set of sensor electrode elements and a sensor electrode element of a second set of at least three sensor electrode elements of a second capacitive button share at least one sensor electrode in common, indicia is received from the at least three distinct sensor electrodes comprising the first capacitive button. At least three electrode values are generated from the indicia. The at least three electrode values are utilized to determine actuation of the capacitive button.Type: GrantFiled: December 13, 2012Date of Patent: July 16, 2013Assignee: Synaptics IncorporatedInventors: Joseph Kurth Reynolds, Tracy Scott Dattalo, Raymond A Trent, Jr., John M Feland, III
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Patent number: 8482437Abstract: An apparatus and method for selecting a keyboard key based on a position of a presence of a conductive object on a sensing device and a pre-defined area of the keyboard key. The apparatus may include a sensing device and a processing device. The sensing device may include a plurality of sensor elements to detect a presence of a conductive object on the sensing device. Multiple keyboard keys are assigned to pre-defined areas of the sensing device. The processing device is coupled to the sensing device using capacitance sensing pins, and may be operable to determine a position of the presence of the conductive object, and to select a keyboard key based on the position of the conductive object and the pre-defined areas of the sensing device.Type: GrantFiled: November 15, 2011Date of Patent: July 9, 2013Assignee: Cypress Semiconductor CorporationInventors: Liu Hua, Jiang XiaoPing
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Patent number: 8466814Abstract: A touch sensor includes a Printed Circuit Board (PCB) that is transparent with respect to light in a visible wavelength band, an upper clad and a lower clad formed on the top face and the bottom face of the PCB, a light source for emitting light to a side of the PCB, and a key top layer disposed on the upper clad.Type: GrantFiled: October 17, 2007Date of Patent: June 18, 2013Assignee: Samsung Electronics Co., Ltd.Inventor: Dong-Kyoon Han
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Patent number: 8462022Abstract: A control unit comprising a light guide is formed and positioned in a circuit board for providing visual indication to a user of an appliance, such as a cooktop. The light guide receives light from a source, typically in the form of an LED on the circuit board, typically positioned laterally to the light guide, and the light guide receives and directs the light to the user. In some embodiments, the light guide is positioned behind a cover, which may have indicia thereon for providing operating information to the user. Portions of the light guide may be coated with an electrically conductive coating so as to also form a portion of a capacitance touch switch for detecting user input for controlling operation of the appliance.Type: GrantFiled: November 11, 2008Date of Patent: June 11, 2013Assignee: E.G.O. Elektro-Geraetebau GmbHInventor: Bernhard Roth
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Patent number: 8456330Abstract: Configurable buttons for electronic devices such as portable electronic devices are provided. A configurable button may have a button member that moves relative to a device housing when it is desired to activate a switch. The button may have an associated touch sensor. The touch sensor may detect when a user's finger touches a particular portion of the button member. Contact with only this portion of the button member is generally inadvertent, so an actuator may be used to prevent or otherwise restrict motion of the button relative to a device housing. This prevents inadvertent activation of the button when a user is manipulating portions of an electronic device such as clip or lid, but does not intend to depress the button.Type: GrantFiled: September 26, 2008Date of Patent: June 4, 2013Assignee: Apple Inc.Inventors: John Benjamin Filson, Stephen Brian Lynch, Emery Sanford, Jan Moolsintong
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Patent number: 8442578Abstract: Methods, systems, and apparatus, including computer program products, for generating feedback. In one aspect, a method includes receiving sensor data from a plurality of sensors, wherein at least one of the plurality of sensors is associated with a mobile device of a user; aggregating the received sensor data to generate aggregated sensor data; processing the aggregated sensor data to determine an aggregated metric; comparing the aggregated metric to a target associated with the user to determine a measure of performance; and generating feedback based on the determined measure of performance. Further, the mobile device can comprise a mobile personal services device that includes one or more of an audio sensor, a video sensor, an environmental sensor, a biometric sensor, a location sensor, an activity detector, and a health monitor. The feedback can be displayed on the mobile personal services device. The feedback also can be displayed in near real-time.Type: GrantFiled: January 5, 2011Date of Patent: May 14, 2013Assignee: Accenture Global Services LimitedInventors: Alex M. Kass, Lucian P. Hughes, Owen E. Richter, Dana Le, Daniel R. Farina
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Patent number: 8421666Abstract: In one embodiment, an apparatus includes a first capacitor system and a second capacitor system. Each capacitor system comprises one or more engaged capacitors from respective pluralities of selectively engagable capacitors. The first capacitor system and second capacitor system are respectively selectively coupled to a first reference voltage and a second reference voltage. The apparatus further includes a switch configured to transfer charge between the first capacitor system and the second capacitor system when the switch is closed such that the first capacitor system and the second capacitor system each store the same first voltage. The apparatus further includes a node coupled to the first capacitor system, the second capacitor system, and a first input of a differential amplifier of an analog to digital converter. The node is configured to bias the differential amplifier to the first voltage.Type: GrantFiled: August 11, 2011Date of Patent: April 16, 2013Assignee: Atmel CorporationInventor: Trond Pedersen
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Publication number: 20130088372Abstract: A guard ring is provided around each capacitive sensor plate and charged to substantially the same voltage as a voltage on the capacitive sensor plate. The guard ring reduces parasitic capacitances of the capacitive sensor plate caused by differences in voltage potentials between the capacitive sensor plate, and adjacent circuit conductors, ground planes and power planes. Two digital outputs and associated voltage divider resistors are used to drive the guard ring voltage to substantially the same voltage as the voltage on the capacitive sensor plate.Type: ApplicationFiled: October 2, 2012Publication date: April 11, 2013Applicant: Microchip Technology IncorporatedInventor: Microchip Technology Incorporated
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Patent number: 8416117Abstract: In one embodiment, an apparatus comprises a first capacitor system and a second capacitor system. Each capacitor system is removably coupled to the same portion of an analog to digital converter (ADC) and the same sensing circuit. Each capacitor system stores charge received through the sensing circuit when coupled to the sensing circuit and provides the charge received through the sensing circuit to the ADC for conversion into a digital value when coupled to the ADC. When the control signals are in a first state, the first capacitor system receives charge through the sensing circuit and the second capacitor system is coupled to the portion of the ADC. When the one or more control signals are in a second state, the second capacitor system is coupled to the sensing circuit to receive charge through the sensing circuit and the first capacitor system is coupled to the portion of the ADC.Type: GrantFiled: August 11, 2011Date of Patent: April 9, 2013Assignee: Atmel CorporationInventor: Trond Pedersen
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Patent number: 8410897Abstract: Disclosed are a contact detection device for vehicular use and a security device for vehicular use that are capable of identifying whether contact is human-induced and that prevent erroneous detection due to raindrops and the like. A security device (10) is equipped with a contact detection device (11) comprising a contact unit (12), a detection unit (13), a standard detection pattern setting means (14) that sets standard detection patterns based on predefined patterns of human-induced contact to the contact unit, a detection signal identification means (15) that compares a detection signal detected by the detection unit (13) and the standard detection patterns that have been set and decides whether these match, and a contact identification signal output means (16), and is further equipped with a lock device (17) and a control device (18).Type: GrantFiled: October 9, 2009Date of Patent: April 2, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventor: Alexandre Popelard
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Patent number: 8405527Abstract: A touch sensor system. The touch sensor system may include a touch sensor configured to provide an output in response to contact with a touch area, a controller coupled to the touch sensor and configured to provide a code representative of the output and a memory coupled to the controller. The memory may be configured to receive and store the code in a first time interval and to provide the code in a second time interval wherein the second time interval begins after the first time interval ends. Adjacent key suppression algorithms are also provided.Type: GrantFiled: February 26, 2010Date of Patent: March 26, 2013Assignee: Stoneridge Control Devices, Inc.Inventors: Kenny Chung, Benjamin K. Yuen, Louis R. Lamborghini, Thomas E. Babington
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Patent number: 8405528Abstract: A gesture based headphone for controlling a media player device and method for using thereof. The headphone comprises a cord with a gesture sensitive region in the cord, and an interface for connecting to the media player device. A user gesture interacts with the gesture sensitive region and generates a control input for controlling the media player device, wherein the user gesture includes at least one gesture generating a control input.Type: GrantFiled: May 21, 2010Date of Patent: March 26, 2013Assignee: Research In Motion LimitedInventors: Behzad Aghaei, Jerome Pasquero, Steven Henry Fyke, David Ryan Walker
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Publication number: 20130063286Abstract: Touch sensitive mechanical keyboards for detecting touch events and key depressions on the keyboard are provided. The keyboard can include a set of individually depressible mechanical keys having a touch sensitive area located on their surface. A touch sensor can be included to detect touch events on the surface of the keys. A keypad can also be included to detect a depression of the mechanical keys. One or more of the depressible mechanical keys can be multi-purpose keys capable of being depressed to multiple levels. The touch sensitive mechanical keyboard can receive key depression input, touch event input, or combinations thereof at the same time. The touch sensitive mechanical keyboard can further include a processor for distinguishing detected touch events from detected key depressions. The processor can generate a key depression command or a touch event command in response to the detected touch events and key depressions.Type: ApplicationFiled: September 14, 2011Publication date: March 14, 2013Inventors: John Greer ELIAS, Steven J. Martisauskas
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Publication number: 20130063285Abstract: Touch sensitive mechanical keyboards and processes for detecting touch events and key depressions on the touch sensitive mechanical keyboard are provided. The touch sensitive mechanical keyboard can include a set of individually depressible mechanical keys having a touch sensitive area located on their surface. A touch sensor can be included to detect touch events on the surface of the mechanical keys. A keypad can also be included to detect a depression of the mechanical keys. The touch sensitive mechanical keyboard can further include a processor for distinguishing detected touch events from detected key depressions. The processor can generate either a key depression command or a touch event command.Type: ApplicationFiled: September 14, 2011Publication date: March 14, 2013Inventor: John Greer ELIAS
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Patent number: 8395591Abstract: The present disclosure generally relates to tactile display devices that include a reservoir for containing a driving fluid. A plurality of toxel portions may be sensitively drivable by the fluid for causing toxels to be displayed, and a pump member associated with the reservoir and toxel portions may pump the fluid from the reservoir to selected toxel portions to display a tactile image. The pump member may include an electro-osmotic pump configured to pump the fluid electro-osmotically in response to an applied voltage, and may be configured to selectively pump the fluid to generally activate the toxels independently from each other. The toxel layer may include the plurality of toxels as well as an elastomeric membrane that may have a pattern of the toxels, and may be configured such that the toxels may be expandable generally independently of each other in response to increased pressure of the fluid pumped into association therewith.Type: GrantFiled: July 22, 2009Date of Patent: March 12, 2013Assignee: Empire Technology Development LLCInventor: Ezekiel Kruglick
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Patent number: 8390481Abstract: Methods and apparatuses are disclosed that allow measurement of a user's interaction with the housing of an electronic device. Some embodiments may measure the electrical characteristics of a housing of an electrical device, where the housing is capable of being temporarily deformed by the user's interaction. By measuring the electrical characteristics of the housing, such as the housing's capacitance, the user's interaction with the housing can be measured in a manner that is independent of the user's electrical characteristics and/or in a manner that may allow the pressure applied to the housing to be quantified.Type: GrantFiled: August 17, 2009Date of Patent: March 5, 2013Assignee: Apple Inc.Inventors: Aleksandar Pance, Nicholas Vincent King, Duncan Kerr, Brett Bilbrey
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Patent number: 8378987Abstract: A sensing method for a capacitive touch panel includes charging a measure capacitor, setting the voltage across a mutual capacitor at the intersection of two traces of the capacitive touch panel, and then injecting partial charges of the measure capacitor into the mutual capacitor. When the intersection is touched, the capacitance value of the mutual capacitor is changed, and consequently the amount of charges injected into the mutual capacitor is changed. Hence, the voltage of the measure capacitor could be detected to determine whether or not the intersection is touched.Type: GrantFiled: July 14, 2010Date of Patent: February 19, 2013Assignee: Elan Microelectronics CorporationInventors: Chun-Chung Huang, I-Shu Lee, Hsiu-Ju Yang, Ching-Chung Wang, Kun-Ming Tsai, Yu-Hui Lin
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Patent number: 8378981Abstract: A method and apparatus for sensing the presence of a body from a change in an amount of charge present on a capacitively charged key includes performing a measurement burst which generates a plurality of signal sample values from a plurality of measurement cycles. Each of the measurement cycle includes inducing charge onto the key during a drive part of the measurement cycle, measuring during a signal measurement part of the measurement cycle the charge induced on the key during the drive part of the measurement cycle, and generating a signal sample value to represent of the charge measured from the key during the signal measurement part of the measurement cycle.Type: GrantFiled: May 14, 2009Date of Patent: February 19, 2013Assignee: Atmel CorporationInventors: Esat Yilmaz, Harald Philipp
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Patent number: 8358226Abstract: Methods for determining actuation of a capacitive button are described. In some embodiments, indicia from the at least three distinct sensor electrodes associated with at least three sensor electrode elements comprising the capacitive button are received, the indicia indicative of interaction of an input object with the at least three distinct sensor electrodes. The actuation of the capacitive button is then determined, based at least in part on satisfying a set of criteria comprising: a location condition concerning a location of the input object relative to a center of the capacitive button, and a coupling condition concerning a change in capacitive coupling of the at least three distinct sensor electrodes associated with the at least three sensor electrode elements comprising the capacitive button.Type: GrantFiled: October 27, 2008Date of Patent: January 22, 2013Assignee: Synaptics IncorporatedInventors: Joseph Kurth Reynolds, Tracy Scott Dattalo, Raymond A Trent, Jr., John M Feland, III, Izhak Baharav, John P Maloney, Jr.
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Patent number: 8339293Abstract: The presently described technology relates to an appliance control panel having multi-function keys. The multi-function keys have multiple regions. A control panel operation module is provided for regulating the control panel system between multiple operation input modes. When the control panel system is in one operation input mode, activation of the first key region executes a first appliance function, and activation of the second key region executes a second appliance function. When the control panel system is in another operation input mode, activation the first key region and activation of said second key region execute the same appliance function. A method for operating an appliance control panel system having multi-function keys is also disclosed.Type: GrantFiled: March 24, 2010Date of Patent: December 25, 2012Assignee: Whirlpool CorporationInventor: Melissa J. Burchill
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Patent number: 8339288Abstract: An electronic device may include a keypad having a plurality of predefined key areas and a light guide that may be used to illuminate the key areas. The light guide may include a capacitive sensing grid to sense user contact relative to the keypad.Type: GrantFiled: June 10, 2010Date of Patent: December 25, 2012Assignee: Intellectual Discovery Co., Ltd.Inventors: Sian Tatt Lee, Choon Guan Ko, Fook Chuin Ng, Muh Fong Chung
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Patent number: 8330735Abstract: A capacitive touch circuit includes a single comparator, a reference voltage control unit, a resistance adjusting unit, a delay unit, and a relaxation oscillation control unit. The comparator has a first input terminal, a second input terminal, and an output terminal. The reference voltage control unit is electrically connected to the second input terminal and includes a high level voltage source, a low level voltage source, and a voltage switching controller. The voltage switching controller electrically connects either the high level voltage source or the low level voltage source to the second input terminal of the single comparator according to an output signal of the single comparator. The relaxation oscillation control unit is electrically connected to the resistance adjusting unit, the delay unit, and the reference voltage control unit.Type: GrantFiled: October 8, 2009Date of Patent: December 11, 2012Assignee: Sonix Technology Co., Ltd.Inventors: Chien-Liang Lin, Chun-Yen Chiu
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Patent number: 8319671Abstract: A keypad structure comprises a plurality of dome switches. Each of the plurality of dome switches provides a first tactile feedback to a user when pressed. At least one vibratory element is electrically connected to the dome switches to actuate when one of the plurality of dome switches is pressed. The at least one vibratory element provides a second tactile feedback to the user.Type: GrantFiled: October 30, 2009Date of Patent: November 27, 2012Assignee: Research In Motion LimitedInventor: Chao Chen
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Patent number: 8319670Abstract: The invention provides an input device of an electric apparatus and a method of manufacturing an input device, wherein the input device comprises: a key member for receiving an input from a user, the key member comprising a plurality of circumferentially arranged touch-sensitive sensor segments and having at least one degree of freedom with respect to the body of the electric apparatus; and a feedback unit coupled to the key member and configured to generate feedback to the key member in the direction of the at least one degree of freedom as a response to the input.Type: GrantFiled: June 12, 2007Date of Patent: November 27, 2012Assignee: Elektrobit Wireless Communications OyInventors: Kim Kivelä, Jarkko Vatjus-Anttila
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Patent number: 8314720Abstract: Provided is a method and a terminal for executing a function of a terminal according to data transmitted and received through a human body, which includes detecting a touch in a human body communication signal input unit, wherein the human body communication signal input unit is in a human body communication key mode; determining a number detected touches and determining a number pulse signals transmitted during a time in which the touch is maintained when the touch is detected; and executing a function corresponding to the human body communication signal.Type: GrantFiled: May 18, 2010Date of Patent: November 20, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hyung Tae Kim, Hee Chan Choi
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Patent number: 8315832Abstract: An embodiment of the present invention is directed to a method for reporting position information. Position information received from a plurality of capacitive sensors in an array of capacitive sensors is adjusted based on predetermined adjustment values to generate adjusted position information. Each predetermined adjustment value is associated with at least one of the plurality of capacitive sensors. A signal representative of the adjusted position information is generated. In another embodiment, the sensitivity of at least one of the capacitive sensors is adjusted based on the position of the at least one capacitive sensor within the array.Type: GrantFiled: June 8, 2011Date of Patent: November 20, 2012Assignee: Cypress Semiconductor CorporationInventor: Ryan D. Seguine
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Patent number: 8310381Abstract: A pulse is applied through a capacitive touch key sensor to a sampling capacitor of an analog-to-digital converter (ADC). The voltage charge arriving at the sampling capacitor will be maximum when there is substantially no shunt capacitance between the capacitive touch key sensor and the sampling capacitor. However, a object such as an operator's finger when in close proximity to the capacitive touch key sensor will create a capacitive shunt to ground that diverts some of the charge that is supposed to go to the sampling capacitor and thereby reduces the voltage charge on the sampling capacitor. This change in charge voltage when the capacitive touch key sensor is activated (touched) may be easily detected with the ADC. In addition, light emitting diodes (LEDs) may be integrated with the capacitive touch key sensors and use the same connections on an integrated circuit device in a time division multiplexed manor.Type: GrantFiled: June 4, 2010Date of Patent: November 13, 2012Assignee: Microchip Technology IncorporatedInventor: Chien-Yi Lin