• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to an electronic device adapted to be carried integrally with a portion of the human body, comprising a housing (11) provided with a display area (13), a bracelet (12), and a control interface with capacitive measuring electrodes (14, 15, 16) arranged to detect control objects, which control interface is arranged to enable the detection of control objects (21) in contact or facing (i) of a detection zone superimposed on the display area (13), (ii) at least one other detection area (17, 18, 23) external to said display area (13). The invention also relates to a method implemented in this device.
    公开号:FR3019320A1
    申请号:FR1452744
    申请日:2014-03-28
    公开日:2015-10-02
    发明作者:Christophe Blondin；Didier Roziere
    申请人:Fogale Nanotech SA；
    IPC主号:
    专利说明:

    [0001] BACKGROUND OF THE INVENTION The present invention relates to an electronic device intended to be carried integrally with a part of the human body, for example of a body. type wristwatch, with an interface allowing control with and without contact. It also relates to a method of controlling such a device.
    [0002] The field of the invention is more particularly but not limited to that of devices comprising a touch-sensitive human machine interface, and implementing a capacitive detection technology. State of the Art Portable devices with tactile interfaces are well known. There may be mentioned computers equipped with a touch screen, smartphones and tablets. In general, they comprise a control interface superimposed on a display screen which makes it possible to interact directly (with a control object such as a finger or a stylus) with information or elements displayed. The control interfaces use capacitive technologies most of the time. They comprise electrodes arranged in the form of rows and columns, or in matrix. The presence of control objects disrupts the electric field lines around these electrodes, which makes it possible to detect them. Certain measurement methods make it possible to obtain sufficiently high sensitivities to detect control objects in a vicinity of the electrodes, remotely and without contact with the surface of the control interface. For example, patent FR 2 756 048 discloses a capacitive measuring solution for detecting the position of a finger in space up to several centimeters away from measurement electrodes. In this case, we speak of tactile and contactless interfaces. -2- These interfaces are well suited for controlling devices whose size of the display screen (and therefore the size of the control interface) is of the order of several inches of diagonal at least, given the size of the fingers of a user.
    [0003] More recently, wristwatch-type devices with tactile interfaces have appeared. These are mainly devices connected to a smartphone or tablet by a wireless link, and intended to be worn on the wrist as a wristwatch. These "satellite" devices make it possible to deport certain functionalities of the "main" device (for example a smartphone) so as to be able to access it without having to interact directly with the main device. These include the selection of music, or the reading of emails. The display area of these "satellite" devices is necessarily reduced to allow wrist wear. For example, there are displays with a diagonal of the order of 1.8 inches (less than 5 cm). For their control, they are also equipped with a touch interface superimposed on the display screen. However, the limited size of the display makes their control difficult. In fact, the fact of placing a finger on the screen masks a large part of it, and the virtual commands are necessarily small and therefore difficult to aim at. In addition, their control interface (the touch screen) and the control software are essentially similar to those used in larger devices. They are therefore not well adapted to the specificities of the use of these miniaturized satellite systems. The object of the present invention is to propose a device of the wristwatch type equipped with a tactile interface which allows a better control than the devices of the prior art. Another object of the present invention is to propose a device of the wristwatch type equipped with a tactile and contactless interface which makes it possible to maintain a better visibility of the display screen during the execution of control actions. The object of the present invention is also to propose a method for controlling such a device which makes it easier and more effective to control. Another object of the present invention is to propose a method of controlling such a device which introduces control possibilities specifically adapted to wearing the device on the wrist. DESCRIPTION OF THE INVENTION This object is achieved with an electronic device intended to be carried integrally with a part of the human body (such as a wrist), comprising a housing provided with a display area, a bracelet, and a control interface with capacitive measuring electrodes arranged to detect control objects, characterized in that said control interface is arranged to allow the detection of control objects: - in contact with or opposite a detection zone superimposed on the display area, in contact with or facing at least one other detection zone external to said display zone. In accordance with embodiments, the device according to the invention may further comprise: measuring electrodes disposed on the housing outside the display area; measuring electrodes arranged on the bracelet. According to embodiments, the device according to the invention may comprise a control interface arranged so as to allow the detection of control objects in contact with or facing at least one external detection zone and on the periphery of the display area, from measurements from measurement electrodes superimposed on the display area. According to embodiments, the device according to the invention may comprise a control interface arranged so as to allow the detection of movements or positions of a control object corresponding to a hand secured to a wrist to which the device is attached, from measurements from: measurement electrodes superimposed on the display area, and / or measurement electrodes disposed on the housing outside the display area. According to embodiments, the device according to the invention may furthermore comprise at least one of the following elements: an inclimometer, an accelerometer, a light sensor, a microphone, a loudspeaker, a sensor of physiological signals. The device according to the invention may especially be of the wristwatch type. According to embodiments: the device according to the invention may furthermore comprise wireless link means enabling data exchanges with a second electronic device; it can be arranged so that it can be used as a remote interface of the second electronic device; It can be arranged so that it can be used as a remote interface of a second electronic device of smartphone or tablet type. In another aspect, there is provided a method of controlling an electronic device to be carried integrally with a portion of the human body (such as a wrist), comprising a housing provided with a display area, a bracelet, and a control interface with capacitive measuring electrodes 25 arranged for detecting control objects in a measurement neighborhood, which method comprises steps of: - searching for control objects in contact with or facing the zone d display, 30 - search control objects in contact or facing at least one other detection zone external to said display area, - generating a command. According to embodiments, the method according to the invention may furthermore comprise: a step of generating a command dependent on a displacement of a control object relative to an external detection zone located on the case or the bracelet. a step of generating a command depending on a position or displacement of a control object corresponding to a hand secured to a wrist to which the device is attached. a step of taking into account a spatial orientation of the device for the generation of a command, a step of taking into account a light environment of the device for the generation of a command. DESCRIPTION OF THE FIGURES AND EMBODIMENTS Other advantages and particularities of the invention will appear on reading the detailed description of implementations and non-limitative embodiments, and the following appended drawings: FIG. 1 illustrates a device embodiment according to the invention in a view from above, - FIG. 2 illustrates an embodiment of the device according to the invention in a side view, - FIG. 3 an embodiment of a detection electronics for the control interface of a device according to the invention, FIG. 4 illustrates a device according to the invention worn on the wrist with the hand in a neutral position, FIG. 5 illustrates a device according to the invention worn on the wrist with the hand in a raised position. It is understood that the embodiments which will be described below are in no way limiting. In particular, it will be possible to imagine variants of the invention comprising only a selection of characteristics described subsequently isolated from the other characteristics described, if this selection of characteristics is sufficient to confer a technical advantage or to differentiate the invention with respect to the state of the prior art. This selection comprises at least one preferably functional feature without structural details, or with only a portion of the structural details if this portion alone is sufficient to confer a technical advantage or to differentiate the invention from the prior art . In particular, all the variants and all the embodiments described are combinable with each other if nothing stands in the way of this combination at the technical level. In the figures, the elements common to several figures retain the same reference. With reference to Figs. 1 and FIG. 2, in the embodiment shown, the device according to the invention generally has the shape of a wristwatch intended to be worn around the wrist. It is understood that the term "wristwatch" is in no way limiting and is used primarily to illustrate an analogy of form. In the embodiment presented, the device according to the invention is more particularly a mobile terminal intended to be used as satellite interface of a main device such as a smartphone or tablet. It can be connected by a wireless link, for example Wifi or Bluetooth type, to the main device. It allows to deport certain features of the main device so that you can access it without having to interact directly with the main device, as will be detailed below. The device according to the invention comprises a housing 11. This housing 20 comprises a display area 13 in the form of a display screen 13. The device according to the invention also comprises a bracelet 12 which makes it possible to fix it or to maintain it integrally with a body part 11. In the embodiment shown, this bracelet 12 makes it possible to fix the device to the wrist. The device according to the invention comprises a control interface with capacitive measuring electrodes arranged to detect control objects 21 in contact with a surface of the device, or in a neighborhood of its surface (at a non-zero distance, therefore). This control interface allows the user to control the device by interacting with the measurement electrodes. The measurement electrodes are distributed on the device so as to constitute detection zones in contact with or against which control objects can be located. These detection zones correspond to surfaces of the device. The device thus comprises a detection zone superimposed on the display screen 13, and external detection zones located on the housing 11 and / or on the bracelet 12 as will be explained later. The display screen 13 is in the form of a touch screen. It comprises on its surface capacitive electrodes 16 which make it possible to detect the presence of a control object 21 such as a finger 21 in the detection zone corresponding to the display screen 13. These electrodes 16 constitute an interface control device that allows the user to control the device by interacting with the display 13. They are made of a substantially transparent conductive material, such as for example ITO (indium-tin oxide) deposited on a dielectric material (glass or polymer). They are superimposed on a display screen 13, for example of the TFT (thin film transistor) or OLED (organic light emitting diodes) type. This type of man-machine interface is well known and widely used in smartphone or tablet type systems. However, in this case, the screen 13 is small, with a diagonal of the order of 5 cm or less. Under these conditions, the use of the touch interface with a finger 21 is difficult, since the areas to be aimed are necessarily small. In addition, approaching the finger 21 obscures a large part of the display 13. In the embodiment shown in FIGS. 1 and FIG. 2, the device according to the invention also comprises external capacitive measuring electrodes disposed outside the display zone 13. These electrodes are made for example by metal deposits, or any suitable method. Fig. 1 and FIG. 2 show non-limiting examples of disposition of these external measuring electrodes. They may include: electrodes 14 disposed on the upper face of the housing around the display 13, in particular on the sides in the direction of the bracelet 12 and on the perpendicular sides; electrodes 22 disposed on one or more slices of the housing, in particular on a slice parallel to the bracelet 12; - The electrodes 15 disposed on the bracelet 12. The electrodes 15 disposed on the bracelet 12 define an outer detection zone 17 of the bracelet. The electrodes 14, 22 disposed on the housing define one or a plurality of external detection zones of the housing 18.
    [0004] In a preferred embodiment, electrodes 16 of the periphery of the screen 13 are used to detect control objects 21 in external detection zones of the housing 18. In fact, these capacitive electrodes 16 of the edge are sensitive to the presence of control objects 21 beyond the limits of the screen 13. By comparing their measurements with those obtained with electrodes 16 located further towards the inside of the screen 13, it is possible to determine that an object detected control 21 is located in an external detection zone of the housing 18, and not above the screen 13. This detection mode can be called an edge effect detection.
    [0005] In this case, the device according to the invention may not include external measurement electrodes 14, 22 on the housing. The device may also be arranged such that there is continuity between external detection zones 17 of the bracelet 12 and detection zones 18 of the housing 11.
    [0006] These external detection zones 17, 18 (implemented thanks to external measurement electrodes 14, 15, 22 and / or to the use of the edge effect detection with electrodes 16 of the periphery of the screen 13) allow to develop modes of control of the device more adapted to its small size, as will be explained later.
    [0007] With reference to FIG. 3, there will now be described an embodiment of a detection electronics that makes it possible to produce a control interface. In this embodiment, the capacitive electrodes 39 (which correspond to the measurement electrodes 16 of the screen 13 and / or the external measurement electrodes 14, 15, 22) make it possible to detect the presence and / or to measure the distance between the electrodes. distance of at least one control object 21 in a measurement zone. Preferably, the measurement electrodes 39 and their associated electronics are configured so as to allow the simultaneous detection of several control objects 21. The position of the control object (s) 21 with respect to the device is determined from the position of the measuring electrodes 39 which detect these control objects 21. The distance, or at least an information representative of this distance, between the control objects 21 and the electrodes 39 is determined from measurements of the coupling capacitive between these electrodes 39 and the control objects 21. This embodiment provides sufficient measurement sensitivity to be able to detect and locate control objects 21 in contact with the surface of the device or electrodes 14, 15, 16, 22, or which evolve near the device at a non-zero distance from its surface. It should also be noted that the presence of external electrodes 14, 15, 22 makes it possible to increase the remote control capabilities of the device simply because they define a measurement zone of dimensions greater than that of the screen. As a matter of fact, this makes it possible to extend the possibilities of three-dimensional distance measurements above the active surface (x, y, z coordinate of the finger or the hand 21). Guard elements in the form of guard electrodes or guard planes (not shown) are positioned along the rear face of the measuring electrodes 39 relative to the detection area of the control objects 21. These guard elements have the function of avoiding parasitic electrical coupling between the measuring electrodes 39 and their environment, as will be explained later. In the case of the display screen 13, the guard elements are also made of a substantially transparent conductive material, such as, for example, ITO (indium-tin oxide). They are separated from the measurement electrodes 16 by a layer of dielectric material. The measurement electrodes 39 are connected to capacitive measurement electronic means 37. These capacitive measurement electronic means 37 are designed as a floating bridge capacitive measurement system as described, for example, in document FR 2 756. 048 de Rozière. The detection circuit comprises a so-called floating portion 36 whose reference potential 31, called guarding potential 31, oscillates with respect to the mass 33 of the overall system, or to earth. The alternative potential difference between the guarding potential 31 and the ground 33 is generated by an excitation source, or an oscillator 34. The guard elements are connected to the guarding potential 31. The floating part 36 comprises the sensitive part of the capacitive detection, shown in FIG. 3 by a charge amplifier. It may of course include other means of processing and signal conditioning, including digital or microprocessor-based, also referenced to the guard potential 31. These processing and conditioning means make it possible, for example, to compute information from the processor. distance and pressure from capacitive measurements. The power supply of the floating portion 36 is provided by floating power transfer means 35, comprising for example DC / DC converters. This capacitive measuring system makes it possible to measure capacitance information between at least one measuring electrode 39 and a control object 21. The control object 21 must be connected to a potential different from the guard potential 31, such as by For example, the ground potential 33 is found in this configuration when the control object 21 is a finger of a user whose body defines a mass, or an object (such as a stylus) handled by this user. . A set of analog switches or switches 30, controlled by electronic control means, makes it possible to select a measurement electrode 39 and to connect it to the capacitive detection electronics 37 to measure the coupling capacitance with the object. 21. The switches 30 are configured so that a measurement electrode 39 is connected either to the capacitive detection electronics 37 or to the guarding potential 31. The sensitive part of the detection is protected by a guard shield 32 connected to the guarding potential 31. Thus, a measuring electrode 39 connected by a switch 30 to the capacitive sensing electronics 37 (or active measuring electrode 39) is surrounded by guard planes formed at least partly by measuring electrodes 39 inactive and by guard elements connected to the guard potential 31.
    [0008] Since the active measuring electrode 39 is also at the guarding potential 31, the parasitic capacitances between this electrode and its environment are avoided, so that only the coupling with the object of interest is measured with maximum sensitivity.
    [0009] The floating electronics 36 is connected to the output of the electronics of the system 38 referenced to ground by electrical connections compatible with the difference of reference potentials. These links may comprise, for example, differential amplifiers or optocouplers.
    [0010] The switches 30 thus make it possible to sequentially interrogate or interrogate the measurement electrodes 16 of the screen 13, as well as the external measurement electrodes 14, 15, 22. Of course, several channels of the capacitive detection electronics 37 may be implemented in parallel, each controlling a subassembly of electrodes 39. For example, it is possible to implement a capacitive sensing electronic means 37 for controlling the electrodes 16 of the screen 13 and a channel for the detection electronics capacitive 37 for controlling the external electrodes 14, 15, 22. Examples of embodiments of commands or device controls according to the invention which more specifically exploit the external electrodes 14, 15, 22 will now be described. Of course, these modes of implementation are non-limiting examples. In addition, any known commands or interaction modes which implement the measuring electrodes 16 of the screen 13 may also be implemented in the invention. In a first aspect, the external sensing areas 17, 18 (optionally with their external electrodes 14, 15, 22) are used to move out of the display area 13 commands or actions that are normally performed by interacting with electrodes 16 of the screen 13. This has the particular advantage: - to avoid mask the display with the finger 21 during an action; - To avoid consuming the display surface for example to represent virtual buttons of sufficient size to allow a target with the finger 21. According to an implementation mode, a control method of the device can include steps: - detection of "tap" in at least two external detection zones 140, 141 of the face of the housing 11 (these external detection zones 140, 141 may correspond to two external electrodes 140, 141 or be defined from detection of edge effects by electrodes 16 of the screen 13); - Incremental displacement 23 of a cursor or a selection area and / or incremental scrolling of elements on the screen 13 in a direction defined by the electrode 140, 141 on which the "tap" has been detected . A two-dimensional displacement can also be obtained with four electrodes; The elements may be, for example, music tracks, emails, SMS messages, etc. The cursor and / or the elements may also be levels, for example listening to sound. It is thus easy to visualize the elements when they are scrolled. According to an implementation mode, a control method of the device may comprise a step of selecting or displaying an element by making a "tap" on an external detection zone 142 of the face of the housing 11. As before, the external detection zone 142 may correspond to an external electrode 142 or be defined from the detection of edge effects by electrodes 16 of the screen 13. According to an implementation mode, a device control method may comprising steps of: detecting a displacement 19 of a control object 21 along an external detection zone 17 of the bracelet 12 (for example defined by a plurality of measuring electrodes 15 distributed along the bracelet 12). According to embodiments, the control object 21 may be in contact or at a distance from the surface of the external detection zone 17; 30 - moving a cursor 20 or a selection area and / or scrolling elements on the screen 13 as a function of the displacement 19 of the control object 21. In a second aspect, particular commands The nature of the device can be implemented by exploiting the external detection zones 17, 18. With reference to FIG. 4 and in FIG. 5, according to an embodiment, a control method of the device may comprise steps for detecting particular positions of the hand 42 secured to the wrist 41 around which the device is fixed.
    [0011] This detection can for example be performed by exploiting the detection of edge effects by electrodes 16 of the screen 13. It can also be performed with external electrodes 22 disposed on the edge of the housing 11 which faces the hand 42 or with electrodes 14 of the housing face which have a sensitivity and a suitable orientation. Thus, for example: the detection of a raised position of the hand 42 as illustrated in FIG. 5 can be used to interrupt a ring or to answer an incoming call; 15 - it is possible to identify which side of the device is the hand 42 secured to the wrist 41 around which it is fixed, in particular to adapt the display, - it is possible to distinguish whether the device is worn on a left arm or on a right arm by locating the side of the thumb, in particular to adapt the display 20 or functions of the control interface. According to embodiments, the device according to the invention may comprise a sensor sensitive to its position or its inclination. This sensor can be used to modify the commands assigned to the detection zones of the screen 13 and / or the external detection zones 17, 18. For example: the interface can be blocked if the device is in a position with the vertical screen 13; A movement of the hand 42 can be interpreted differently depending on whether the device is in a position corresponding to that of a vertical arm 30 along the body. According to embodiments, the device according to the invention may comprise a light sensor, to determine for example whether it is in a sleeve. In this case, it is possible, for example, to adjust the sensitivity of certain measuring electrodes to enable the detection of control objects 21 at a greater distance, through a garment. According to embodiments, the device according to the invention may be an autonomous device that can operate without depending on a connection with another so-called "main" device. According to embodiments, the device according to the invention may comprise in particular: a watch, a computer, a telephone, a device for measuring or checking physiological signals such as pulse, voltage, etc. According to embodiments, the device according to the invention can be arranged so as to be worn on any part of the body, including: an arm, a leg or ankle, the trunk or the torso. According to embodiments, the device according to the invention can comprise elements such as the housing 11, and / or a part of the bracelet 12 supporting external measuring electrodes 15 which are arranged in such a way as to be able to separate the bracelet Of course, the invention is not limited to the examples which have just been described and numerous adjustments can be made to these examples without departing from the scope of the invention.
    权利要求:
    Claims (15)
    [0001]
    REVENDICATIONS1. Electronic device intended to be carried integrally with a part (41) of the human body, in particular of the wristwatch or mobile terminal type, comprising a housing (11) provided with a display area (13), a bracelet (12) ), and a control interface with capacitive measuring electrodes (14, 15, 16, 22) distributed on the device so as to constitute detection zones and arranged to detect control objects (21), characterized in that said control interface with said capacitive measuring electrodes (14, 15, 16, 22) are arranged to allow the detection of control objects (21): - in contact with or opposite a superimposed detection zone to the display area (13), - in contact with or facing at least one other detection area (17, 18, 23) external to said display area (13).
    [0002]
    The device of claim 1, which comprises measuring electrodes (14, 22) disposed on the housing (11) outside the display area (13). 20
    [0003]
    3. The device of one of the preceding claims, which further comprises measuring electrodes (15) disposed on the bracelet (12).
    [0004]
    4. The device of one of the preceding claims, which comprises a control interface arranged so as to enable the detection of control objects (21) in contact with or facing at least one detection zone (18). ) external and periphery of the display area (13), from measurements from measuring electrodes (16) superimposed on the display area (13). 30
    [0005]
    5. The device of one of the preceding claims, which comprises a control interface arranged so as to allow the detection of movements or positions of a control object corresponding to a hand (42) secured to a wrist (41) to which the device is attached, from measurements taken from: measuring electrodes (16) superimposed on the display area (13), and / or measuring electrodes (14, 22) ) disposed on the housing (11) outside the display area (13).
    [0006]
    6. The device of one of the preceding claims, which furthermore comprises at least one of the following elements: an inclimometer, an accelerometer, a light sensor, a microphone, a loudspeaker, a sensor of physiological signals.
    [0007]
    7. The device of one of the preceding claims, which is of the wristwatch type.
    [0008]
    The device of one of the preceding claims, which further comprises wireless link means for exchanging data with a second electronic device.
    [0009]
    9. The device of claim 8, which is arranged so that it can be used as a remote interface of the second electronic device.
    [0010]
    10. The device of one of claims 8 or 9, which is arranged so as to be used as a remote interface of a second electronic device of smartphone or tablet type. 30
    [0011]
    11. A method of controlling an electronic device intended to be carried integrally with a part (41) of the human body, in particular of the wristwatch or mobile terminal type, comprising a housing (11) provided with a display area ( 13), a bracelet (12), and a control interface with capacitive measuring electrodes (14, 15, 16, 22) distributed over the device so as to constitute detection zones and arranged to detect objects. control unit (21) in a measurement neighborhood, characterized in that it comprises steps: - searching for control objects (21) in contact with or facing a detection zone superimposed on the display area (13), - search control objects (21) in contact with or facing at least one other detection zone (17, 18, 23) external to said display zone (13), - generation of an order.
    [0012]
    The method of claim 11, which further comprises a step of generating a control dependent on a displacement of a control object (21) relative to an external detection zone located on the housing (11). or on the bracelet (12).
    [0013]
    The method of one of claims 11 or 12, which further comprises a step of generating a control depending on a position or a movement of a control object corresponding to a hand (42). secured to a wrist (41) to which the device is attached.
    [0014]
    14. The method of one of claims 11 to 13, which further comprises a step of taking into account a spatial orientation of the device for the generation of a command. 25
    [0015]
    15. The method of one of claims 11 to 14, which further comprises a step of taking into account a light environment of the device for generating a command. 30
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    法律状态:
    2015-03-25| PLFP| Fee payment|Year of fee payment: 2 |
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    2016-08-12| TP| Transmission of property|Owner name: QUICKSTEP TECHNOLOGIES LLC, US Effective date: 20160707 |
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    优先权:
    申请号 | 申请日 | 专利标题
    FR1452744A|FR3019320B1|2014-03-28|2014-03-28|BRACKET WATCH-TYPE ELECTRONIC DEVICE WITH CONTACTLESS CONTROL INTERFACE AND METHOD FOR CONTROLLING SUCH A DEVICE|FR1452744A| FR3019320B1|2014-03-28|2014-03-28|BRACKET WATCH-TYPE ELECTRONIC DEVICE WITH CONTACTLESS CONTROL INTERFACE AND METHOD FOR CONTROLLING SUCH A DEVICE|
    US15/122,624| US10809856B2|2014-03-28|2015-03-16|Wristwatch-type electronic device with contactless control interface, and control method for such a device|
    PCT/EP2015/055431| WO2015144474A2|2014-03-28|2015-03-16|Wristwatch-type electronic device with contactless control interface, and control method for such a device|
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