公开(公告)号：GB2471946A

公开(公告)日：2011-01-19

申请号：GB201011772

申请日：2010-07-13

Applicant: APPLE INC

Inventor： HOTELLING STEVEN PORTER ,  AMM DAVID T

IPC: G06F3/044

Abstract: A touch sensitive device detects its grounded state so that poor grounding can be selectively compensated for in touch signals outputted by the device. The device can include one or more components to monitor certain conditions of the device, such as resistor detectors, a monitor sensor, a proxitnity sensor, a perimeter sensor and/or a property sensor for objects in contact or near the device and an application sensor. The device can analyze the monitored conditions to determine the grounding condition of the device. The device can apply a function to compensate its touch signal outputs if the device determines that it is poorly grounded. Conversely, the device can omit the function if the device, which may be a mobile telephone, digital media player or personal computer determines that it is well grounded.

公开(公告)号：AU2018214097A1

公开(公告)日：2018-08-30

申请号：AU2018214097

申请日：2018-08-09

Applicant: APPLE INC

Inventor： BERNSTEIN JEFFREY TRAER ,  AMM DAVID T ,  LEUNG OMAR ,  MULLENS CHRISTOPHER TENZIN ,  KING BRIAN MICHAEL ,  LAND BRIAN RICHARDS ,  CUTLER REESE T

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/048

Abstract: Improved capacitive touch and hover sensing with a sensor array is provided. An AC ground shield positioned behind the sensor array and stimulated with signals of the same waveform as the signals driving the sensor array may concentrate the electric field extending from the sensor 5 array and enhance hover sensing capability. The hover position and/or height of an object that is nearby, but not directly above, a touch surface of the sensor array, e.g., in the border area at the end of a touch screen, may be determined using capacitive measurements of sensors near the end of the sensor array by fitting the measurements to a model. Other improvements relate to the joint operation of touch and hover sensing, such as determining when and how to perform touch 0 sensing, hover sensing, both touch and hover sensing, or neither.

公开(公告)号：AU2016200766B2

公开(公告)日：2018-05-10

申请号：AU2016200766

申请日：2016-02-05

Applicant: APPLE INC

Inventor： BERNSTEIN JEFFREY TRAER ,  AMM DAVID T ,  LEUNG OMAR ,  MULLENS CHRISTOPHER TENZIN ,  KING BRIAN MICHAEL ,  LAND BRIAN RICHARDS ,  CUTLER REESE T

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/048

Abstract: Improved capacitive touch and hover sensing with a sensor array is provided. An AC ground shield positioned behind the sensor array and stimulated with signals of the same waveform as the signals driving the sensor array may concentrate the electric field extending from the sensor 5 array and enhance hover sensing capability. The hover position and/or height of an object that is nearby, but not directly above, a touch surface of the sensor array, e.g., in the border area at the end of a touch screen, may be determined using capacitive measurements of sensors near the end of the sensor array by fitting the measurements to a model. Other improvements relate to the joint operation of touch and hover sensing, such as determining when and how to perform touch 0 sensing, hover sensing, both touch and hover sensing, or neither.

公开(公告)号：AU2013270546C1

公开(公告)日：2016-06-23

申请号：AU2013270546

申请日：2013-12-12

Applicant: APPLE INC

Inventor： PANCE ALEKSANDAR ,  LEUNG OMAR S ,  AMM DAVID T

IPC: G06F3/044 ,  H03K17/955 ,  H03K17/96 ,  H03K17/975 ,  H03K17/98

Abstract: Ilke, pfeseDIt 01i0c081'e addresses mewld05 and. appare"tU"s i3~ialn apaciktive ae~gU~n COnduC1iVo Sieufface, ad lan sensing opf to the colduuctive Su"tCco, The Sensed proxiinaity Wi often be that o0 a user, bIt Can b an, othcr source of a referenC Volae 5 potentia h some exam ple\ tA dCRe d \r>'i . Capable of Sensri capacitance (Thcuo&g panmeA oapac'dauce) in a circuit that meV s t outer conduclitv surtame aind vvhTC na Oauer Cotductive suERrCE 15 as a oi&eln eiecCal Dotemin a n son1 SVlSt m e Systems Can c e switched betWeen tWo o ain' miiodes iode in which the systm ai senSe proximity to the Concdtlvec surface, and at SOcod miodk in WIc 'he sysin iill use a U capacitance nesurenteil to sense contact Wt he condem-ive SiuracC,

公开(公告)号：AU2014202291B2

公开(公告)日：2015-11-05

申请号：AU2014202291

申请日：2014-04-28

Applicant: APPLE INC

Inventor： BERNSTEIN JEFFREY TRAER ,  AMM DAVID T ,  LEUNG OMAR ,  MULLENS CHRISTOPHER TENZIN ,  KING BRIAN MICHAEL ,  LAND BRIAN RICHARDS ,  CUTLER REESE T

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/048

Abstract: 1000603817.2 Improved capacitive touch and hover sensing with a sensor array is provided. An AC ground shield positioned behind the sensor array and stimulated with signals of the same waveform as the signals driving the sensor array may concentrate the electric field extending from the sensor array and 5 enhance hover sensing capability. The hover position and/or height of an object that is nearby, but not directly above, a touch surface of the sensor array, e.g., in the border area at the end of a touch screen, may be determined using capacitive measurements of sensors near the end of the sensor array by fitting the measurements to a model. Other improvements relate to the joint operation of touch and hover sensing, such as determining when and how to perform touch sensing, hover sensing, both 10 touch and hover sensing, or neither.

公开(公告)号：CA2767800C

公开(公告)日：2015-04-28

申请号：CA2767800

申请日：2010-06-22

Applicant: APPLE INC

Inventor： SCHLUB ROBERT W ,  AMM DAVID T ,  LEUNG OMAR S ,  KING BRIAN M ,  LI QINGXIANG ,  AYALA VAZQUEZ ENRIQUE ,  GOMEZ ANGULO RODNEY ANDRES ,  JIANG YI ,  CABALLERO RUBEN

IPC: H01Q1/24 ,  H01Q1/38 ,  H01Q1/44 ,  H01Q9/04 ,  H03K17/955

Abstract: Antennas are provided for electronic devices such as portable computers. An electronic device may have a housing in which an antenna is mounted. The housing may be formed of conductive materials. A dielectric antenna window may be mounted in the housing to allow radio- frequency signals to be transmitted from the antenna and to allow the antenna to receive radio-frequency signals. Near-field radiation limits may be satisfied by reducing transmit power when an external object is detected in the vicinity of the dielectric antenna window and the antenna. A proximity sensor may be used in detecting external objects. A parasitic antenna resonating element may be interposed between the antenna resonating element and the dielectric antenna window to minimize near-field radiation hotspots. The parasitic antenna resonating element may be formed using a capacitor electrode for the proximity sensor. A ferrite layer may be interposed between the parasitic element and the antenna window.

公开(公告)号：AU2010273846B2

公开(公告)日：2014-02-13

申请号：AU2010273846

申请日：2010-06-22

Applicant: APPLE INC

Inventor： AMM DAVID T ,  SCHLUB ROBERT W ,  LEUNG OMAR S ,  KING BRIAN M ,  LI QINGXIANG ,  AYALA VAZQUEZ ENRIQUE ,  GOMEZ ANGULO RODNEY ANDRES ,  JIANG YI ,  CABALLERO RUBEN

IPC: H01Q1/38

Abstract: An electronic device may have a housing in which an antenna is mounted. An antenna window may be mounted in the housing to allow radio-frequency signals to be transmitted from the antenna and to allow the antenna to receive radio-frequency signals. Near-field radiation limits may be satisfied by reducing transmit power when an external object is detected in the vicinity of the dielectric antenna window and the antenna. A capacitive proximity sensor may be used in detecting external objects in the vicinity of the antenna. The proximity sensor may have conductive layers separated by a dielectric. A capacitance-to-digital converter may be coupled to the proximity sensor by inductors. The capacitive proximity sensor may be interposed between an antenna resonating element and the antenna window. The capacitive proximity sensor may serve as a parasitic antenna resonating element and may be coupled to the housing by a capacitor.

公开(公告)号：AU2010284670B2

公开(公告)日：2013-09-12

申请号：AU2010284670

申请日：2010-08-20

Applicant: APPLE INC

Inventor： PANCE ALEKSANDAR ,  LEUNG OMAR S ,  AMM DAVID T

IPC: G06F3/044 ,  H03K17/955 ,  H03K17/96 ,  H03K17/975 ,  H03K17/98

Abstract: The present disclosure addresses methods and apparatus facilitating capacitive sensing using a conductive surface, and facilitating the sensing of proximity to the conductive surface. The sensed proximity will often be that of a user, but can be another source of a reference voltage potential. In some examples, the described systems are capable of sensing capacitance (including parasitic capacitance) in a circuit that includes the outer conductive surface, and where that outer conductive surface is at a floating electrical potential. In some systems, the systems can be switched between two operating modes, a first mode in which the system will sense proximity to the conductive surface, and a second mode in which the system will use a capacitance measurement to sense contact with the conductive surface.

公开(公告)号：GB2471946B

公开(公告)日：2012-10-03

申请号：GB201011772

申请日：2010-07-13

Applicant: APPLE INC

Inventor： HOTELLING STEVEN PORTER ,  AMM DAVID T ,  LAMMERS MICHAEL ,  ORCHARD JOHN T ,  KING BRIAN MICHAEL ,  LEUNG OMAR ,  TEOMAN DENIZ

IPC: G06F3/044

Abstract: Ground detection of a touch sensitive device is disclosed. The device can detect its grounded state so that poor grounding can be selectively compensated for in touch signals outputted by the device. The device can include one or more components to monitor certain conditions of the device. The device can analyze the monitored conditions to determine the grounding condition of the device. The device can apply a function to compensate its touch signal outputs if the device determines that it is poorly grounded. Conversely, the device can omit the function if the device determines that it is well grounded.

公开(公告)号：AU2010284670A1

公开(公告)日：2012-04-12

申请号：AU2010284670

申请日：2010-08-20

Applicant: APPLE INC

Inventor： PANCE ALEKSANDAR ,  LEUNG OMAR S ,  AMM DAVID T

IPC: G06F3/044 ,  H03K17/955 ,  H03K17/96 ,  H03K17/975 ,  H03K17/98

Abstract: The present disclosure addresses methods and apparatus facilitating capacitive sensing using a conductive surface, and facilitating the sensing of proximity to the conductive surface. The sensed proximity will often be that of a user, but can be another source of a reference voltage potential. In some examples, the described systems are capable of sensing capacitance (including parasitic capacitance) in a circuit that includes the outer conductive surface, and where that outer conductive surface is at a floating electrical potential. In some systems, the systems can be switched between two operating modes, a first mode in which the system will sense proximity to the conductive surface, and a second mode in which the system will use a capacitance measurement to sense contact with the conductive surface.