EP2571112A1 - Elektronische Vorrichtung und Verfahren zum Erkennen einer angemessenen Kabelverbindung - Google Patents

Elektronische Vorrichtung und Verfahren zum Erkennen einer angemessenen Kabelverbindung Download PDF

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Publication number
EP2571112A1
EP2571112A1 EP11181131A EP11181131A EP2571112A1 EP 2571112 A1 EP2571112 A1 EP 2571112A1 EP 11181131 A EP11181131 A EP 11181131A EP 11181131 A EP11181131 A EP 11181131A EP 2571112 A1 EP2571112 A1 EP 2571112A1
Authority
EP
European Patent Office
Prior art keywords
pressure
socket
plug
electronic device
pressure sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11181131A
Other languages
English (en)
French (fr)
Inventor
Ryan David Steeves
Mohamad El-Hage
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BlackBerry Ltd
Original Assignee
Research in Motion Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Research in Motion Ltd filed Critical Research in Motion Ltd
Priority to EP11181131A priority Critical patent/EP2571112A1/de
Priority to CA 2790375 priority patent/CA2790375A1/en
Publication of EP2571112A1 publication Critical patent/EP2571112A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/58—Contacts spaced along longitudinal axis of engagement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/16—Connectors or connections adapted for particular applications for telephony

Definitions

  • the present disclosure relates generally to electrical or optical cable connectors. More particularly, the present disclosure relates to an electronic device and method of detecting a proper cable connection.
  • a plug is properly connected to a socket by fully inserting the plug into the socket. Once the connection is established, power, signals or other information can be passed from a device to an accessory (or vice versa) electromagnetically or optically, often without need of a wireless communication channel. If a plug is not fully inserted into a socket, false positives, or misleading feedback, may result.
  • false positives and misleading feedback refer to a situation in which a plug is not fully inserted into the socket (and as a result, not all electrical or optical connections between the plug and the socket are properly established), but in which a user may assume or wrongly conclude that the plug is fully inserted.
  • an electronic device including: a socket for receiving a plug; a pressure sensor located in the socket configured to generate a pressure signal; and a processor operatively connected to the pressure sensor, the processor configured to determine whether there has been a proper cable connection as a function of the pressure signal.
  • a method including: controlling a sampling of an air pressure inside a socket at a first sampling frequency; receiving a first pressure signal as a function of the air pressure; in response to the first pressure signal, controlling the sampling of the air pressure inside the socket at a second sampling frequency; receiving a plurality of pressure signals at the second sampling frequency; and determining when a proper cable connection of the socket and a plug has been made as a function of the plurality of pressure signals.
  • Figure 1 is an isometric view of an illustrative portable electronic device
  • Figure 2 is a schematic of a system for detection of a proper cable connection
  • Figure 3A is a view of an illustrative plug and socket and associated apparatus
  • Figure 3B is a view of a portable electronic device, illustrating a cable connection
  • Figure 4 is a flowchart of an example method of detection of a proper cable connection.
  • a portable electronic device may determine that a plug is fully inserted in a socket.
  • the concepts are not limited to use with a portable electronic device, but may be applied to devices that are less apt to be moved from place to place, such as large-display televisions; but the concepts are well illustrated and potentially advantageous in the context of a portable electronic device.
  • one of the connecting components typically the part that includes one or more protrusions and that is inserted into a receptacle will be called the "plug.”
  • the concepts may be explained in terms of a plug that includes one or more substantially cylindrical pins, but the concepts are not necessarily limited to that conformation.
  • "Plug” is used herein to encompass a variety of connectors having at least one male connecting part, such as a pin or prong.
  • the receiving connector will be called a "socket.”
  • the socket is sized and shaped to receive the plug.
  • the plug and socket will be described in an arrangement in which the socket is a part of a portable electronic device, and is substantially mounted on or affixed to the portable electronic device.
  • the plug will be described in the context of an accessory (such as headphones) that a user may physically couple to the portable electronic device by insertion of the plug into the socket.
  • the plug is "less fixed” than the socket, in that the plug typically is the element that is manipulated by a human being into a “more fixed” socket, but the concepts are not limited to this typical case. Furthermore, the concepts described herein may be applied to connectors that have male and female connective parts.
  • electrical or optical information may be conveyed to or from the plug by a wire-like element, which will be called the "cable."
  • the cable may convey, for example, electrical power, electrical signals or optical signals, or any combination thereof.
  • the socket will not be depicted as being coupled to a cable, the concepts may apply to embodiments in which the socket has a cable but the plug does not, or where the socket and plug both have cables.
  • the illustrative apparatus will depict a portable electronic device such as a music player or a smart phone (having a socket), which is to be properly connected to headphones (having a cable and a plug), but the concepts disclosed herein are not limited to that particular apparatus.
  • a proper cable connection may enable an electrical connection (by which electric power or electric signals may be conveyed) or an optical connection (by which optical power or optical signals may be conveyed) or both.
  • Conventional plug-socket apparatus may include a mechanical switch (often in the socket) that may be configured to change its state (e.g., from open to closed or vice versa) depending upon whether the plug is properly connected to the socket. Such switches (which typically include moving parts) may suffer from wear and tear and may require repairs. The concepts described herein may supplement or supplant such mechanical switches.
  • the present disclosure provides an electronic device, system and method of detecting a proper cable connection between a plug and a socket, such as (but not limited to) an electrical connection between a portable electronic device and a headset.
  • the present disclosure provides for a pressure sensor to be attached to a socket or a plug.
  • the system supports one or more optional checks, by which the proper cable connection may be verified.
  • FIG 1 illustrates a portable electronic device 10 such as a mobile communication device.
  • the portable electronic device 10 has a body 12, which generally serves as a structural framework for other components.
  • the portable electronic device 10 also includes a display screen 14, a keyboard/keypad 16, a set of buttons 18 and an input device such as a pointing device 20, which may be a trackball, joystick, scroll wheel, roller wheel, touchpad or the like.
  • the portable electronic device may include one or more speakers (not shown).
  • the portable electronic device 10 also includes a socket (not shown in Figure 1 ), which may receive a plug. For purposes of illustration, the plug will be part of a headset or headphones (also not shown in Figure 1 ).
  • the portable electronic device 10 may handheld, that is, sized to be held or carried in a human hand.
  • Figure 2 illustrates a schematic diagram of a system 100 for detecting a proper cable connection.
  • Figures 3A and 3B illustrate the system 100 for detecting a proper cable connection with reference to the portable electronic device 10.
  • Figure 3A shows an illustrative plug 112 and socket 114.
  • the plug 112 is connected to a cable 120.
  • the plug 112 includes a pin 110, which is a protruding member to be inserted into the socket 114.
  • the socket 114 is sized and shaped to receive the pin 110.
  • the socket 114 has a proximal end 116, where there is an opening in the housing 12 to receive the pin 110, and a distal end 118.
  • the socket 114 may include one or more electrical or optical connection points in any of several configurations, but these connection points are not depicted in Figures 2 , 3A or 3B . As described below, two such connection points may,come in contact with the pin 110, at different sites that will be called the inner pin 122 and the outer pin 124.
  • a pressure sensor 102 is included in the socket 114, and is located near (or proximate to) the distal end 118 of the socket 114.
  • the pressure sensor 102 may be located elsewhere proximate to the socket 114, and in another embodiment, the pressure sensor may be located on or proximate to the tip 116 of the plug 112.
  • the pressure sensor 102 may be any kind of pressure sensor, such as a microelectromechanical system (MEMS) pressure sensor (for example, a silicon MEMS pressure sensor).
  • MEMS microelectromechanical system
  • the pressure sensor 102 may be a transducer that receives pressure as an input and generates an electrical pressure signal as an output.
  • the pressure sensor 102 is operatively connected to a processor 106.
  • "operatively connected” indicates that the components can function in concert. Components may be operatively connected even though they are not abutting or proximate to or physically connected to one another.
  • the pressure sensor 102 may be operatively connected to the processor 106 via, for example, internal wiring or cabling. Alternatively, the pressure sensor 102 and the processor 106 may be operatively connected by a wireless communication link.
  • the processor 106 may be operatively connected to a digital logic component 108.
  • the digital logic component 108 may be another kind of processor.
  • the processor 106 may be a general-purpose processor that monitors or controls many of the operations or functions of the portable electronic device
  • the digital logic component 108 may be a specialized processor that performs processing related to insertion of the plug 112 into the socket 114.
  • the functions of the processor 106 and the digital logic component 108 may be combined into a single element.
  • the pressure sensor 102 itself may include processing capability, such as the ability to determine whether a sensed pressure exceeds a threshold, or how a pressure may be measured in units.
  • the processor 106 may retrieve instructions from a storage component 109 such as non-volatile memory.
  • the pressure sensor (or force sensor element) 102 may be operatively connected to a voltage bias 104, via for example internal wiring in the portable electronic device.
  • the voltage bias may be AC or DC, depending on the pressure sensor 102 being used.
  • the voltage bias is provided by a power source internal to the portable electronic device 10, such as a rechargeable battery.
  • a voltage bias may make the pressure sensor 102 able to operate, and able to generate a pressure signal as a function of air pressure (which may include generating a pressure signal as a function of a pressure differential or a change in pressure).
  • the digital logic component 108 may be configured to determine, as a function of air pressure or contact pressure (as sensed by the pressure sensor 102), whether the plug 112 is fully and correctly inserted into the socket 114.
  • the processor 106 may receive a cable connection signal from the digital logic component 108.
  • the cable connection signal indicates whether or not there has been a proper cable connection. A proper cable connection might not exist when (for example) the tip 116 of the plug 112 is broken or if the plug 112 is not fully inserted.
  • the digital logic component 108 receives as an input a pressure signal from the pressure sensor 102.
  • the digital logic component 108 may receive the pressure signal from the pressure sensor 102 directly, or may receive a pressure signal via an intermediate element.
  • the digital logic component 108 may determine whether a sensed pressure exceeds a threshold.
  • the digital logic component 108 may receive further inputs from which it may determine whether or not there has been a proper cable connection.
  • connection points in the socket 114 may come in contact with the inner pin 122 and the outer pin 124. The resistance between the inner pin 122 and the outer pin 124 may be tested or measured, and the resistance supplied as an input to the digital logic component 108.
  • the inner pin 122 and outer pin 124 may register a short or closed circuit connection, or a resistance that is zero or near-zero, which may indicate that the plug 112 is fully inserted in the socket 114.
  • the resistance between the inner pin 122 and the outer pin 124 is not near zero, but is instead large (in this context, a large resistance can be on the order of just a few ohms), a less-than-full insertion may be indicated.
  • a very large resistance (e.g., on the order of 1000 ohms or more) may indicate, for example, that there has been nothing near a full insertion.
  • the resistance between the inner pin 122 and the outer pin 124 may be tested or measured by a validating component other than the digital logic component 108, such as resistance tester that is neither digital nor includes logical elements.
  • the digital logic component 108 (or other validating component) may supply a resistance signal to the processor 106 as a function of the resistance between the inner pin 122 and the outer pin 124
  • the digital logic component 108 is configured to test the resistance between the inner pin 122 and the outer pin 124, and does not receive or process other inputs.
  • a mechanical tip detection switch (not shown) may be located within the portable electronic device. As noted previously, the concepts described herein may operate in concert with such a switch. The state of the switch may be a further input to the digital logic component 108. In an additional embodiment, it may be possible for the digital logic component 108 to determine whether the mechanical tip detection switch may be broken or non-functional.
  • the pressure sensor 102 may be located at the distal end 118 of the socket 114.
  • the pressure sensor 102 may be, for example, a silicon pressure sensor, a micro-electric mechanical system (MEMS), an ink pressure sensor or the like and may be calibrated to sense contact pressure, standard air pressure or to respond to changes in air pressure.
  • the pressure sensor 102 may be configured to generate a pressure signal as a function of air pressure in the socket 114.
  • the pressure signal may be a function of, for example, the magnitude of air pressure, the magnitude of the change in air pressure, the abruptness of the change (e.g., whether a pressure change is more spike-like).
  • the pressure sensor 102 may be programmed to measure air pressure in units such as Torr or kilopascals, or in units of force (such as Newtons) applied to an area.
  • the pressure sensor 102 may be calibrated to detect whether the pressure exerted by the insertion of a jack or object into the connector is above a pressure threshold.
  • the threshold separates pressures that are insignificant from those that may be significant.
  • the pressure sensor 102 may be configured such that, in the event the pressure is not above the threshold, the pressure sensor 102 will not generate a pressure signal. In the event the pressure sensor 102 detects the air pressure value to be over the pressure threshold, the pressure sensor 102 may generate a pressure signal.
  • the pressure signal may be received by the processor 106.
  • the pressure threshold may be an absolute pressure (in relation to a perfect vacuum).
  • the threshold may be set to be in the range of (for example) 3 to 20 Newtons, or 4 to 15 Newtons.
  • the pressure signal may act as an interrupt, such that a pressure signal triggers an interrupt event with respect to the processor 106.
  • the pressure sensor 102 may be programmed to sample the air pressure at particular intervals, for example every millisecond or every second, and thereby generate a plurality of pressure signals.
  • the pressure sensor 102 may sample at a sampling frequency controlled by the processor 106 (for purposes of illustration, it will be assumed that the sampling frequency is under the control of the processor 106).
  • the pressure sensor monitors pressure continuously.
  • the pressure sensor 102 does not apply a threshold, but the processor 106 compares a received pressure signal to a threshold to determine if the pressure signal is significant or valid.
  • the processor 106 may send a control signal to the digital logic component 108, in response to which the digital logic component 108 may determine the resistance between the inner pin 122 and the outer pin 124. If the resistance is approximately zero, that state is communicated by the digital logic component 108 to the processor 106.
  • the pressure signal may indicate that the plug 112 has been inserted into the socket 114, and the resistance reading may support the conclusion that the plug 112 has been fully inserted into the socket 114. Based upon the pressure signal and the resistance reading, the processor 106 may determine that the plug 112 is fully inserted.
  • the processor 106 may receive the pressure signal from the pressure sensor 102 and, solely as a function of the pressure signal, determine that the plug 112 is fully inserted in the socket 114. In other words, checking the resistance is optional and may serve as a redundant check in order to further reduce the chances of a false positive.
  • the pressure sensor 102 may be programmed to determine or respond to transient or rate-of-change results.
  • a pressure signal may be generated in response to a change in pressure. Similar to the embodiments in which the pressure sensor 102 responds to magnitudes of air pressure and contact pressure, changes in air pressure may be compared to a threshold to differentiate between changes that are insignificant and changes that may be significant. Similar to embodiments described earlier, a pressure signal caused by a change in pressure may result in an interrupt with respect to the processor 106.
  • the pressure sensor 102 may be sampling pressure at a first sampling frequency under the direction of the processor 106, such as every tenth of a second (10 Hz).
  • the pressure sensor 102 may continue to monitor the changing air pressure, and the processor 106 may increase the sampling frequency to a second sampling frequency (e.g., to 100 Hz or 1000 Hz).
  • the processor 106 may receive a plurality of additional pressure signals (more closely spaced in time), and may monitor the change, in pressure more frequently.
  • the processor 106 may return to the first sampling frequency after a short interval of time.
  • the processor 106 may analyze the pressure changes, as indicated by the pressure signals.
  • An abrupt, spike-like change in the pressure may indicate that the plug 112 has been inserted into the socket 114.
  • the shape of the curve or the spike that may signify insertion of the plug 112 into the socket 114 may vary from plug to plug and from socket to socket).
  • Whether the pressure signals indicate that the plug 112 has been inserted into the socket 114 may be determined by any technique, such as curve-matching or mathematical correlation between a range of expected pressure signals and actual pressure signals.
  • the processor 106 may perform a redundant resistance check (e.g., via the digital logic component 108) to verify whether the plug 112 is fully inserted. If the resistance is large, the processor 106 may generate a feedback message to the user, thereby informing the user that the plug 112 has not been fully inserted in the socket.
  • the feedback message may be conveyed visually (e.g., by text presented on display 14), audibly (e.g., a message or alarm announced by a speaker) or tactilely (e.g., by causing the portable electronic device 10 to vibrate), or any combination thereof.
  • monitoring of the air pressure may continue (e.g., at the first or second sampling frequencies) to determine whether the pressure continues to change (which may indicate, for example, a second insertion attempt). If the resistance is found to be very large, the processor 106 may determine that that there has been no actual insertion, and the pressure measurements can be disregarded as a false positive.
  • Figure 4 illustrates a flowchart for one example method of detection of a proper cable connection of a plug 112 into a socket 114.
  • the processor 106 may control the pressure sampling 200 at a first sampling frequency.
  • the pressure sensor 102 may detect a change in air pressure and may generate a pressure signal, which is received 202 by the processor 106.
  • the pressure sensor 102, or the processor 106, or both, may determine whether the change in pressure is significant (e.g., by comparison of the change in pressure to a threshold).
  • the processor 106 may control the pressure sampling 204 at a second sampling frequency, the second sampling frequency being higher than the first. In this way, the processor 106 receives a plurality of pressure signals. The processor 106 analyzes the pressure signals 206 to determine whether the pressure signals indicate 208 an insertion of the plug 112 into the socket 114. In the event the pressure signals do not correspond to an insertion, the processor 106 may return the pressure sampling to the first frequency 200. In the event, however, that insertion is indicated, the processor 106 may (optionally) verify the insertion 210, for example, by checking the resistance between the inner pin 122 and the outer pin 124 via digital logic component 108.
  • the processor 106 may generate a notification to the user 212. In the event full insertion is verified, the processor 106 may proceed as though there has been a proper cable connection 214. When there has been a proper cable connection 214, the processor 106 may perform any number of functions consistent with that condition. For example, in the case where the plug 112 is attached by the cable 120 to a headset, the processor 106 may change the volume settings of the audio output. The processor 106 may change the sampling frequency, e.g., returning to the first sampling frequency or suspending pressure sampling while the plug 112 is inserted in the socket 114.
  • One or more of the above embodiments may realize one or more benefits.
  • Various embodiments may provide a system for detecting a proper cable connection that is reliable and small. In the context of a handheld device, where space and weight are typically controlled commodities, a system that adds little bulk and mass may be desirable.
  • the system and method described herein can be adapted to a wide variety of plugs and sockets, and to a wide variety of portable electronic devices, accessories, connectors and the like.
  • the concepts described herein may entail a cost not present with other systems, but which may realize benefits in exchange for that cost.
  • a mechanical switch does not require power to be activated, such a switch does result in power consumption when the switch is activated.
  • the pressure sensor may consume power to detect a change in pressure, but the power consumption is small.
  • Embodiments of the disclosure can be represented as a computer program product stored in a machine-readable medium (also referred to as a computer-readable medium, a processor-readable medium, or a computer usable medium having a computer-readable program code embodied therein).
  • the machine-readable medium can be any suitable tangible, non-transitory medium, including magnetic, optical, or electrical storage medium including a diskette, compact disk read only memory (CD-ROM), memory device (volatile or non-volatile), or similar storage mechanism.
  • the machine-readable medium can contain various sets of instructions, code sequences, configuration information, or other data, which, when executed, cause a processor to perform steps in a method according to an embodiment of the disclosure.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP11181131A 2011-09-13 2011-09-13 Elektronische Vorrichtung und Verfahren zum Erkennen einer angemessenen Kabelverbindung Withdrawn EP2571112A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP11181131A EP2571112A1 (de) 2011-09-13 2011-09-13 Elektronische Vorrichtung und Verfahren zum Erkennen einer angemessenen Kabelverbindung
CA 2790375 CA2790375A1 (en) 2011-09-13 2012-09-11 Electronic device and method of detecting a proper cable connection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11181131A EP2571112A1 (de) 2011-09-13 2011-09-13 Elektronische Vorrichtung und Verfahren zum Erkennen einer angemessenen Kabelverbindung

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EP2571112A1 true EP2571112A1 (de) 2013-03-20

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EP11181131A Withdrawn EP2571112A1 (de) 2011-09-13 2011-09-13 Elektronische Vorrichtung und Verfahren zum Erkennen einer angemessenen Kabelverbindung

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EP (1) EP2571112A1 (de)
CA (1) CA2790375A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104346259A (zh) * 2013-08-02 2015-02-11 昆山研达电脑科技有限公司 插头移除提醒方法及其系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005071364A1 (en) * 2004-01-26 2005-08-04 British Telecommunications Public Limited Company Ad hoc sensor networks
US20080234935A1 (en) * 2007-03-23 2008-09-25 Qualcomm Incorporated MULTI-SENSOR DATA COLLECTION and/or PROCESSING
US20090081902A1 (en) * 2007-09-24 2009-03-26 John Mezzalingua Associates, Inc. Coaxial cable connector and method of use thereof
EP2309232A1 (de) * 2009-10-09 2011-04-13 Baumer Innotec AG Positionsgeber mit Multiturn-Positionserfassung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005071364A1 (en) * 2004-01-26 2005-08-04 British Telecommunications Public Limited Company Ad hoc sensor networks
US20080234935A1 (en) * 2007-03-23 2008-09-25 Qualcomm Incorporated MULTI-SENSOR DATA COLLECTION and/or PROCESSING
US20090081902A1 (en) * 2007-09-24 2009-03-26 John Mezzalingua Associates, Inc. Coaxial cable connector and method of use thereof
EP2309232A1 (de) * 2009-10-09 2011-04-13 Baumer Innotec AG Positionsgeber mit Multiturn-Positionserfassung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104346259A (zh) * 2013-08-02 2015-02-11 昆山研达电脑科技有限公司 插头移除提醒方法及其系统

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