An electronic device and a method for detecting if a user interface touch button is being pressed
The integration of capacitive and force sensors in electronic devices ensures reliable button presses with reduced costs by using a single force sensor and defined thresholds.
Patent Information
- Application Number
- PCT/CN2024/106796
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2026-01-29
Smart Images

Figure CN2024106796_29012026_PF_FP_ABST
Abstract
Description
AN ELECTRONIC DEVICE AND A METHOD FOR DETECTING IF A USER INTERFACE TOUCH BUTTON IS BEING PRESSEDFIELD
[0001] The present invention relates to electronic devices. More specifically, the disclosure relates to an electronic device and a method, the electronic device configured to detect if a specific user interface capacitive touch button is pressed by a user of the electronic device. The electronic device comprises a housing, touch sensors, a force sensor and an electronic circuit.BACKGROUND
[0002] Today most electronic devices, such as hearing devices, having touch buttons uses either pure capacitive touch buttons or pressure sensitive touch buttons. Compared with pure capacitive touch buttons or traditional mechanical buttons, pressure-sensitive based force touch buttons have great advantages as they are more reliable. However, the force touch button needs to use an additional force sensor, and the cost is higher than other solutions. Using more than one force sensor will greatly increase the cost of the device.
[0003] Therefore, there is a need for an improved electronic device and an improved method for using a force sensor cooperating with a number of capacitive sensors to realize the use effect of multiple force touch buttons. This may be achieved by arranging multiple lower-cost capacitive sensor touch buttons according to product requirements in the device. At the same time, a force sensor is arranged at a position where pressure or deformation occurs when any user interface button or key is pressed by the user. The pressed target button is identified by the capacitive sensor and the applied force sensed by the force sensor. The user interface event, such as a device functionality, registered will take effect only when sensor data from both types of sensors are detected at the same time in an electronic circuit of the electronic device.SUMMARY
[0004] Disclosed is an electronic device comprising a housing, one or more capacitive sensors forming part of one or more user interface touch buttons arranged in or at the housing and a force sensor arranged within or at the housing. The electronic device comprises an electronic circuit arranged within the housing, and being configured to detect / receive capacitive data from the one or more capacitive sensors and to detect / receive force data from the force sensor, the capacitive data being indicative of a specific user interface touch button being pressed by a user, and the force data being indicative of a pressure being applied to the housing by a user of the electronic device. The electronic circuit is configured, upon simultaneous detection of capacitive data and force data, to determine that a specific user interface touch button related to the capacitive sensor has been pressed by the user of the electronic device and thereby having the electronic device carrying out a specific functionality indicated by the pressed user interface touch button. Thereby a force applied by the user of the electronic device pressing one of a number of capacitive touch buttons can advantageously be detected using only one force sensor.
[0005] It is an advantage if the simultaneous detection of the two sensor signals determining that a specific user interface touch button has been pressed by the user is defined by a predetermined minimum time threshold value, thereby avoiding faulty button presses by the user who accidentally very quickly may touch a button on the electronic device.
[0006] It is an advantage if the simultaneous detection of the two sensor signals determining that a specific user interface touch button has been pressed by the user is defined by a predetermined minimum force threshold value, thereby avoiding faulty button presses by the user who accidentally very lightly may touch a button on the electronic device.
[0007] It is an advantage if the electronic device comprises one or more groups of sensors, the sensors being arranged in mutual proximity within or at the housing; the one or more groups each comprising a force sensor and one or more capacitive sensors so that upon simultaneous detection by the electronic circuit of capacitive data and force data within the same group, the electronic circuit is configured to determine that a specific user interface touch button related to the capacitive sensor within the group has been pressed by the user of the electronic device. The housing of the electronic device may then be divided into areas where one force sensor covers each area with a number of capacitive sensors in that area. This is an advantage as it avoids a very large distance between force sensor and capacitive sensor, which may cause the applied force on the force sensor to be very little and thereby not be detected. This may be a problem if the electronic is relatively large with a large outer housing surface area. When there is closer proximity when the user presses his or her finger on the user interface touch button more force is applied to the force sensor.
[0008] The electronic device may comprise an acoustic output transducer for rendering audio signals. The acoustic output transducer may be a speaker, a loudspeaker, a receiver, etc. The acoustic output transducer may be configured for transmitting audio into the ear of the user. The transmitting audio may be streamed media content, such as music, radio, video sound, podcast, audio book etc. The transmitting audio may be speech signals to the user in a phone call or video call with a far-end caller.
[0009] The electronic device may comprise an acoustic input transducer for capturing acoustic signals. The input transducer may comprise a microphone for capturing and transmitting sound such as speech from the user. The acoustic output transducer and the acoustic input transducer may be arranged in the housing.
[0010] In an embodiment the electronic device is a hearing device configured for inputting acoustic signals via an acoustic input transducer and / or for rendering audio signals via an acoustic output transducer.
[0011] In an embodiment the hearing device may be a hearing instrument such as a hearing aid, such as a binaural hearing aid.
[0012] In an embodiment the hearing device is a personal audio communication device, such as a headset or speakerphone for transmitting / receiving audio from and / or to an external communication device connected to the personal audio communication device.
[0013] The hearing device may be an in-ear hearing device, or an on-ear hearing device, or an over-ear hearing device.
[0014] In an embodiment the electronic device is a controller for a hearing device. Thereby the functionality of the hearing device can be controlled remotely by the user.
[0015] In an embodiment the electronic device is a charging case for a hearing device. Thereby the hearing device can easily be charged when not in use, and easily be stored and carried in the charging case by the user.
[0016] In an embodiment the electronic circuit comprises a microcontroller unit (MCU) for processing sensor data.
[0017] The electronic circuit may comprise a wireless module for transmitting and receiving audio communication according to a wireless protocol.
[0018] In an embodiment the electronic device is an audio-visual (AV) device, such as a video conference camera or a combined video-and soundbar configured for online meetings or conferences such as video meetings and video conferences.
[0019] In an embodiment the electronic device comprises an audio decoder for coding and decoding audio signals received or transmitted.
[0020] Disclosed is also a method for detecting if a user interface touch button in an electronic device has been activated by a user of the electronic device. The method comprises steps of in an electronic circuit of the electronic device, detecting if a capacitive input from a capacitive touch sensor related to the user interface touch button is received. In the affirmative event then detecting if an input from a force sensor, indicating that a force is applied on the force sensor, is received, and in the affirmative event then in the event of simultaneously receiving capacitive data and force data in the electronic circuit, carrying out a desired user interface functionality of the electronic device. Thereby a force applied by the user of the electronic device pressing one of a number of capacitive touch buttons can advantageously be detected using only one force sensor.
[0021] The electronic device may be any consumer electronic device or professional electronic device having user interface touch buttons such as computers, laptop computers, personal computers, industrial electronic machinery and equipment, Hi-Fi equipment and devices, personal smart devices, such as a tablet, a smartphone or a personal media player.
[0022] In an embodiment of the electronic device being a hearing device, the hearing device is configured to be worn by a user. The hearing device may be arranged at the user’s ear, on the user’s ear, over the user’s ear, in the user’s ear, in the user’s ear canal, behind the user’s ear and / or in the user’s concha, i.e., the hearing device is configured to be worn in, on, over and / or at the user’s ear. The user may wear two hearing devices, one hearing device at each ear. The two hearing devices may be connected, such as wirelessly connected and / or connected by wires, such as a binaural hearing aid system.
[0023] The hearing device may be a hearable such as a headset, headphone, earphone, earbud, hearing aid, a Personal Sound Amplification Product (PSAP) , an over-the-counter (OTC) hearing device, a hearing protection device, a one-size-fits-all hearing device, a custom hearing device or another head-wearable hearing device. Hearing devices can include both prescription devices and non-prescription devices.
[0024] The hearing device may be embodied in various housing styles or form factors. Some of these form factors are Behind-the-Ear (BTE) hearing device, Receiver-in-Canal (RIC) hearing device, Receiver-in-Ear (RIE) hearing device or Microphone-and-Receiver-in-Ear (MaRIE) hearing device. These devices may comprise a BTE unit configured to be worn behind the ear of the user and an in the ear (ITE) unit configured to be inserted partly or fully into the user’s ear canal. Generally, the BTE unit may comprise at least one input transducer, a power source and a processing unit. The term BTE hearing device refers to a hearing device where the receiver, i.e. the output transducer, is comprised in the BTE unit and sound is guided to the ITE unit via a sound tube connecting the BTE and ITE units, whereas the terms RIE, RIC and MaRIE hearing devices refer to hearing devices where the receiver may be comprised in the ITE unit, which is coupled to the BTE unit via a connector cable or wire configured for transferring electric signals between the BTE and ITE units.
[0025] Some of these form factors are In-the-Ear (ITE) hearing device, Completely-in-Canal (CIC) hearing device or Invisible-in-Canal (IIC) hearing device. These hearing devices may comprise an ITE unit, wherein the ITE unit may comprise at least one input transducer, a power source, a processing unit and an output transducer. These form factors may be custom devices, meaning that the ITE unit may comprise a housing having a shell made from a hard material, such as a hard polymer or metal, or a soft material such as a rubber-like polymer, moulded to have an outer shape conforming to the shape of the specific user’s ear canal.
[0026] Some of these form factors are earbuds, on the ear headphones or over the ear headphones. The person skilled in the art is well aware of different kinds of hearing devices and of different options for arranging the hearing device in, on, over and / or at the ear of the hearing device user. The hearing device (or pair of hearing devices) may be custom fitted, standard fitted, open fitted and / or occlusive fitted.
[0027] In an embodiment, the hearing device may comprise one or more input transducers. The one or more input transducers may comprise one or more microphones. The one or more input transducers may comprise one or more vibration sensors configured for detecting bone vibration. The one or more input transducer (s) may be configured for converting an acoustic signal into a first electric input signal. The first electric input signal may be an analogue signal. The first electric input signal may be a digital signal. The one or more input transducer (s) may be coupled to one or more analogue-to-digital converter (s) configured for converting the analogue first input signal into a digital first input signal.
[0028] In an embodiment, the hearing device may comprise one or more antenna (s) configured for wireless communication. The one or more antenna (s) may comprise an electric antenna. The electric antenna may be configured for wireless communication at a first frequency. The first frequency may be above 800 MHz, preferably a wavelength between 900 MHz and 6 GHz. The first frequency may be 902 MHz to 928 MHz. The first frequency may be 2.4 to 2.5 GHz. The first frequency may be 5.725 GHz to 5.875 GHz. The one or more antenna (s) may comprise a magnetic antenna. The magnetic antenna may comprise a magnetic core. The magnetic antenna may comprise a coil. The coil may be coiled around the magnetic core. The magnetic antenna may be configured for wireless communication at a second frequency. The second frequency may be below 100 MHz. The second frequency may be between 9 MHz and 15 MHz.
[0029] In an embodiment, the hearing device may comprise one or more wireless communication unit (s) . The wireless communication unit (s) may be configured for communication via Bluetooth (BT) such as Bluetooth Low Energy (BTLE) , Wi-Fi, WLAN etc. The one or more wireless communication unit (s) may comprise one or more wireless receiver (s) , one or more wireless transmitter (s) , one or more transmitter-receiver pair (s) and / or one or more transceiver (s) . At least one of the one or more wireless communication unit (s) may be coupled to the one or more antenna (s) . The wireless communication unit may be configured for converting a wireless signal received by at least one of the one or more antenna (s) into a second electric input signal. The hearing device may be configured for wired / wireless audio communication, e.g. enabling the user to listen to media, such as music or radio and / or enabling the user to perform phone calls.
[0030] In an embodiment, the wireless signal may originate from one or more external source (s) and / or external devices, such as spouse microphone device (s) , wireless audio transmitter (s) , smart computer (s) and / or distributed microphone array (s) associated with a wireless transmitter. The wireless input signal (s) may origin from another hearing device, e.g., as part of a binaural hearing system and / or from one or more accessory device (s) , such as a smartphone and / or a smart watch.
[0031] In an embodiment, the hearing device may include a processing unit. The processing unit may be configured for processing the first and / or second electric input signal (s) . The processing may comprise compensating for a hearing loss of the user, i.e., apply frequency dependent gain to input signals in accordance with the user’s frequency dependent hearing impairment. The processing may comprise performing feedback cancelation, beamforming, tinnitus reduction / masking, noise reduction, noise cancellation, speech recognition, bass adjustment, treble adjustment and / or processing of user input. The processing unit may be a processor, an integrated circuit, an application, functional module, etc. The processing unit may be implemented in a signal-processing chip or a printed circuit board (PCB) . The processing unit may be configured to provide a first electric output signal based on the processing of the first and / or second electric input signal (s) . The processing unit may be configured to provide a second electric output signal. The second electric output signal may be based on the processing of the first and / or second electric input signal (s) .
[0032] In an embodiment, the hearing device may comprise an output transducer. The output transducer may be coupled to the processing unit. The output transducer may be a receiver. It is noted that in this context, a receiver may be a loudspeaker, whereas a wireless receiver may be a device configured for processing a wireless signal. The receiver may be configured for converting the first electric output signal into an acoustic output signal. The output transducer may be coupled to the processing unit via the magnetic antenna. The output transducer may be comprised in an ITE unit or in an earpiece, e.g. Receiver-in-Ear (RIE) unit or Microphone-and-Receiver-in-Ear (MaRIE) unit, of the hearing device. One or more of the input transducer (s) may be comprised in an ITE unit or in an earpiece.
[0033] In an embodiment, the wireless communication unit may be configured for converting the second electric output signal into a wireless output signal. The wireless output signal may comprise synchronization data. The wireless communication unit may be configured for transmitting the wireless output signal via at least one of the one or more antennas.
[0034] In an embodiment, the hearing device may comprise a digital-to-analogue converter configured to convert the first electric output signal, the second electric output signal and / or the wireless output signal into an analogue signal.
[0035] In an embodiment, the hearing device may comprise a power source. The power source may comprise a battery providing a first voltage. The battery may be a rechargeable battery. The battery may be a replaceable battery. The power source may comprise a power management unit. The power management unit may be configured to convert the first voltage into a second voltage. The power source may comprise a charging coil. The charging coil may be provided by the magnetic antenna.
[0036] In an embodiment, the hearing device may comprise a memory, including volatile and non-volatile forms of memory.
[0037] The wireless communication unit may connect to the hearing device signal processor and the antenna, for communicating with one or more external devices, such as one or more external electronic devices, including at least one personal computer, at least one smartphone, at least one tablet, at least one hearing accessory device, including at least one spouse microphone, remote control, audio testing device, etc., or, in some embodiments, with another hearing device, such as another hearing device located at another ear, typically in a binaural hearing device system.
[0038] The hearing device may be a binaural hearing device. The hearing device may be a first hearing device and / or a second hearing device of a binaural hearing device.
[0039] The audio device may be an audio-conferencing device, a meeting room device or a speakerphone device. The audio device may be used by both near-end users and far-end users. In this regard, near-end users are the one or more users provided in the same spatial environment as the audio device.
[0040] The hearing device may be a device configured for communication with one or more other device, such as configured for communication with another hearing device or with an accessory device or with a peripheral device.
[0041] The present invention relates to different aspects including the electronic device, such as a hearing device and the method described above and in the following, and corresponding systems, devices, device parts, each yielding one or more of the benefits and advantages described in connection with the first mentioned aspect, and each having one or more embodiments corresponding to the embodiments described in connection with the first mentioned aspect and / or disclosed in the appended claims.BRIEF DESCRIPTION OF THE DRAWINGS
[0042] The above and other features and advantages will become readily apparent to those skilled in the art by the following detailed description of exemplary embodiments thereof with reference to the attached drawings, in which:
[0043] Fig. 1 schematically illustrates an exemplary electronic device in the embodiment of a hearing device configured to detect if a user interface capacitive touch button has been pressed.
[0044] Fig. 2 schematically illustrates an exemplary electronic device in the embodiment of a charging case / controller for a hearing device configured to detect if a user interface capacitive touch button has been pressed.
[0045] Fig. 3 schematically illustrates an exemplary electronic device in the embodiment of a speakerphone configured to detect if a user interface capacitive touch button has been pressed.
[0046] Fig. 4a and 4b schematically illustrates an exemplary cross-section of an electronic device with capacitive touch sensors and a force sensor where a capacitive touch sensor is triggered.
[0047] Fig. 5a, 5b and 5c schematically illustrates an exemplary cross-section of an electronic device with capacitive touch sensors and a force sensor where the force sensor is triggered by the applied pressure.
[0048] Fig. 6a, 6b and 6c schematically illustrates an exemplary electronic device as a hearing device with capacitive touch sensors and a force sensor in the embodiment of a speakerphone.
[0049] Fig. 7 schematically illustrates an example of a method for determining if a user interface capacitive touch button has been pressed.
[0050] Fig. 8 schematically illustrates an example of a representation of an electronic device comprising an electronic circuit for determining if a user interface capacitive touch button has been pressed.DETAILED DESCRIPTION
[0051] Various embodiments are described hereinafter with reference to the figures. Like reference numerals refer to like elements throughout. Like elements will, thus, not be described in detail with respect to the description of each figure. It should also be noted that the figures are only intended to facilitate the description of the embodiments. They are not intended as an exhaustive description of the claimed invention or as a limitation on the scope of the claimed invention. In addition, an illustrated embodiment needs not have all the aspects or advantages shown. An aspect or an advantage described in conjunction with a particular embodiment is not necessarily limited to that embodiment and can be practiced in any other embodiments even if not so illustrated, or if not so explicitly described.
[0052] Fig. 1 schematically illustrates an exemplary electronic device in the embodiment of a hearing device 1 configured to detect if a user interface capacitive touch button 6 has been pressed. A force sensor 7 is attached to the inside of the housing 8 of the hearing device 1, such as a front cover of an earcup 2. User interface touch buttons 6 are composed of capacitive touch buttons 6. The hearing device 1 is here shown as an over the head hearing device, such as an over the head headset 1 comprising at least one earcup 2 for placement on, at or over the ear of a user. The headset comprises a headband 3 connected at one end to the earcup 2 and thereby providing an over the head wearing style for the user of the headset 1. The other end of the headband 3 may be connected to a second earcup 2 (not shown) thereby providing a duo or stereo headset for the user. The two earcups may then be identical regarding the configuration of the sensors (6, 7) each having a number of capacitive sensors 6 in arrangement with one touch sensor 7. The headband 3 may also be a neckband for arranging around the neck of the user.
[0053] The hearing device 1 may further comprise an acoustic input transducer (not shown) , such as a microphone for capturing and transmitting sound such as speech from the user, and / or an acoustic output transducer (not shown) , such as a speaker for rendering sound to the user’s ear(s) such as audio signals being played from the speaker. The earcup 2 may be provided with an earcushion 4 for proving comfort and acoustic sealing against or around the user’s ear. The earcup 2 may be provided with a number of buttons 6 for functional control of the headset 1, such as UI features e.g. control features of the hearing device 1 such as volume up / down, call control, mute microphone, music track control etc.
[0054] The buttons 6 are composed of capacitive touch buttons 6 for sensing a touch from the user’s finger (s) 5. When the user touches it, the target button 6 is identified by the capacitive sensor 6, and whether the button pressing event is registered in the hearing device 1 will take effect only when force is applied to the button 6 at the same time. This will be detected by force sensor 7 arranged within the housing 8, e.g. within the front cover 8 of the earcup 2.
[0055] Fig. 2 schematically illustrates an exemplary electronic device in the embodiment of a charging case / controller 20 for a hearing device 1 configured to detect if a user interface capacitive touch button 6 has been pressed.
[0056] This might for example be a casing 20 for a hearing device of the earbud (s) type or for a hearing instrument, where the casing is used for storage and charging of the earbuds or hearing instrument. It might also be a controller 20 for a hearing device giving the functionality of a remote control of the hearing device such as volume up / down, call control, mute microphone, music track control etc. The controller / charging case 20 could be stored in a pocket of the user or placed on a desk at the user’s workstation. The buttons 6 are composed of capacitive touch buttons 6 for sensing a touch from the user’s finger (s) 5. When the user touches it, the target button 6 is identified by the capacitive sensor 6, and whether the button pressing event is registered in the controller / charging case 20 will take effect only when force is applied to the button 6 at the same time. This will be detected by force sensor 7 arranged within the housing 8 of the charging case / controller 20.
[0057] Fig. 3 schematically illustrates an exemplary electronic device in the embodiment of a speakerphone 30 configured to detect if a user interface capacitive touch button 6 has been pressed.
[0058] The buttons 6 are composed of capacitive touch buttons 6 for sensing a touch from the user’s finger (s) 5. When the user touches it, the target button 6 is identified by the capacitive sensor 6, and whether the button pressing event is registered in the controller / charging case 20 will take effect only when force is applied to the button 6 at the same time. This will be detected by force sensor 7 arranged within the housing 8 of the speakerphone 30. The speakerphone 30 may comprise a speaker 10 such as a loudspeaker 10 for emitting sound.
[0059] Fig. 4a and 4b schematically illustrates an exemplary cross-section of an electronic device with capacitive touch sensors and a force sensor where a capacitive touch sensor is triggered.
[0060] Fig. 5a, 5b and 5c schematically illustrates an exemplary cross-section of an electronic device with capacitive touch sensors and a force sensor where the force sensor is triggered by the applied pressure.
[0061] The electronic device in fig. 4a-5c comprises a housing 8. The housing 8 may be at least partly flexible, e.g. the housing or parts thereof may be composed of a flexible material. The flexible part (s) of the housing may be arranged in close proximity such as adjacent, such as underneath the capacitive sensor (s) 6. The device as shown in fig. 4a-5c comprises a housing 8 and a PCB 9. The PCB 9 may be divided into more parts 9 which may be arranged in close proximity, e.g. underneath and / or adjacent to the housing 8 of the device 50. The parts may be arranged in a mutual essentially perpendicular position. The parts may be arranged in a mutual essentially parallel position The capacitive sensors 6 are connected to the PCB 9, e.g. mounted on the PCB 9, and arranged in the housing 8 and thereby providing a capacitive touch button interface for the user 5. The touch button user interface (UI) may be placed on the surface of the housing 8 and thereby visible and available for the user 5 to press. Multiple capacitive touch sensors 6 may be provided on one or more sides of the device, e.g. on multiple surfaces of the housing 8, e.g. on the top surface or on the side surface. The force sensor 7 may likewise be connected to the PCB 9, e.g. mounted on the opposite side of the PCB 9.
[0062] The electronic device 20, 30, 40, 50 and the hearing device 1, 60 embodiment hereof may comprise an electronic circuit 13 as disclosed in fig. 8 and described in detail below in connection with the description of fig. 8.
[0063] The electronic device 20, 30, 40, 50 and the hearing device 1, 60 embodiment hereof may comprise one or more groups of sensors 6, the sensors 6 being arranged in mutual proximity within or at the housing 8, the one or more groups each comprising a force sensor 7 and one or more capacitive sensors 6, so that upon simultaneous detection by the electronic circuit 13 of capacitive data and force data within the same group, the electronic circuit 13 is configured to determine that a specific user interface touch button related to the capacitive sensor 6 within the group has been pressed by the user of the electronic device. The groups of sensors may be mounted on separate PCBs 9 or part thereof 9. The groups of sensors may be arranged at or within separate sides of the housing 8.
[0064] In fig. 4b the user’s finger 5 touches the UI capacitive button 6b on the surface of the device and the specific capacitive touch sensor 6a detects this. The force sensor 7 will also detect this if the applied force is sufficient. When the two types of sensors, capacitive 6 and force 7, are triggered at the same time, the button pressing event will take effect, carrying out the desired device functionality related to the pressed button 6a, 6b.
[0065] In figures 5a, 5b and 5c it is shown how the housing 8 and the PCB 9 may be deformed by the applied force 51 or 52, which may be applied by the user’s finger 5 by pressing the desired UI touch button 6a or 6b and thereby activating the specific capacitive sensor 6a or 6b connected therewith. The PCB 9 may be divided into more parts 9 which may be arranged in close proximity, e.g. underneath and / or adjacent to the housing 8 of the device 50. The parts may be arranged in a mutual essentially perpendicular or parallel position. The PCB 9 may be provided in the form of a flexible circuit board (FCB) thereby being able to deform more easily when force 51, 52 is applied. The force sensor 7 will then detect this. When the two types of sensors, capacitive 6 and force 7, are triggered at the same time, the button pressing event will take effect, carrying out the desired device functionality related to the pressed button 6a, 6b.
[0066] Figure 5a and 5b show to different buttons 6a, 6b being pressed by the user 5 and thereby two different capacitive sensors 6a and 6b will detect this, providing two different UI button functions determined by the button 6a, 6b pressed by the user 5.
[0067] In figures 5a and 5b UI touch buttons on the top surface of the device 50 are pressed whereas in fig. 5c a UI touch button 6c on the side surface is pressed by the user 5, which activates the connected capacitive sensor 6c. The applied force 52 will then deform the PCB / FCB thereby also providing a pressure detected by the force sensor 7. When the two types of sensors, capacitive 6c and force 7 are triggered at the same time, the button pressing event will take effect, carrying out the desired device functionality related to the pressed button 6c.
[0068] The hearing device in fig. 5a, 5b and 5c may as mentioned above comprise an at least partly flexible housing 8, so when the user 5 presses the UI touch button on the side of the housing 8, the deformation direction of the PCB / FPC in fig. 5c may be opposite compared to that of fig 5a and 5b. This will likewise be detected by the force sensor 7.
[0069] Fig. 6a, 6b and 6c schematically illustrates an exemplary electronic device as a hearing device with capacitive touch sensors 6 and a force sensor 7 in the embodiment of a speakerphone 60. The speakerphone 60 may comprise a loudspeaker 10 and one or more microphones (not shown) .
[0070] The device 60 as shown in fig. 6a-6c comprises a housing 8 and one or more PCB (s) 9. The capacitive sensors 6 may be connected to a PCB 9, e.g. mounted directly thereon, or connected thereto through electrical wiring or other electrically conductive paths. UI capacitive touch sensor buttons 6 may be provided on or at the surface of the housing 8 thereby being visible and available for the user 5 to press. Multiple capacitive touch sensors 6 may be provided on one or more sides of the device, e.g. on the top surface or around the edge of the housing 8. The force sensor 7 may likewise be connected to a PCB 9, e.g. mounted thereon. This may be a different PCB than the PCB the capacitive sensors are connected to, as the force sensor 7 may be arranged towards the bottom of the speakerphone 60 with a relatively large distance to the capacitive sensors. This may be caused by the speakerphone 60 having a large speaker 10, such as a loudspeaker 10, taking up more room towards the upper part of the device compared to speakers in other hearing devices.
[0071] In fig. 6b the user’s finger 5 touches the UI capacitive button 6a on the surface of the device 60 and the specific capacitive touch sensor 6a comprised therewith detects this. The force sensor 7 will also detect this if the force 61 is sufficient. This is shown in fig. 6c. When the two types of sensors, capacitive 6 and force 7, are triggered at the same time, the button pressing event will take effect, carrying out the desired device functionality related to the pressed button 6a.
[0072] The electronic device such as a hearing device in the embodiment of a speakerphone 60 as shown in figures 6a-6c may comprise a flexible member or part 11 mounted in or being part of the housing 8 providing a transferred force 62 of the applied force 61 from the upper part of the housing 8 to the PCB 9, thereby contributing to the deformation of the PCB 9 as shown in fig. 6c.The speakerphone 60 may comprise a loudspeaker 10 and one or more microphones (not shown) .
[0073] Fig. 7 schematically illustrates an example of a method 70 for determining if a user interface capacitive touch button of an electronic device as disclosed in figures 1-6 has been pressed. The method 70 comprising the following steps: In an electronic device 71, detecting if a capacitive input from a capacitive touch sensor is received 72. In the event of “No” 73 nothing happens, in the event of “Yes” 74 and further a detection of an input from a force sensor 75 indicating that a force is applied on the force sensor, then “Yes” 77 signaling that a specific UI button pressing event will take effect, carrying out the desired device functionality of the electronic device 78. The method may be carried out using a microcontroller unit (MCU) 13 shown in fig. 8. In the event of “No” 76 when no force signal is detected then nothing happens.
[0074] Fig. 8 schematically illustrates an example of a representation of an electronic device 80 comprising an electronic circuit 13 for determining if a user interface capacitive touch button 6 has been pressed.
[0075] In figure 8 the user interface capacitive touch buttons are disclosed as keys 12 each key representing an UI controlling feature, e.g. control features of the electronic device such as volume up / down, call control, mute microphone, music track control etc. The electrical circuit 13 may be configured to detect when the capacitive sensors 6, 86 and the force sensor 7 are pressed simultaneously. The capacitive sensor 86 is here shown as one unit but represents the number of capacitive sensors 6 comprised by the UI keys 12. The electronic circuit may, as shown in fig. 8, be a microcontroller unit (MCU) containing one or more logic circuit (s) that detects which UI key 12 has been pressed by receiving input data from the capacitive sensor and combined with the input data from the force sensor 7 activates the specific control command related to the UI key 12. Based on this the MCU may control the audio decoder for receiving and / or transmitting audio through the microphone 16 and the speaker 17. The MCU may further based on this control a communication interface for communicating with an external communication device (not shown) . This may, as shown in the fig. 8, be a wireless interface with an antenna 15 for transmitting a wireless signal via a wireless protocol such as Bluetooth or DECT or another suitable protocol. The electronic circuit may comprise circuitry for processing of the transmitted or received wireless signal, such as a Bluetooth (BT) chip. The MCU may further be configured for accepting or discarding a UI capacitive button press depending on receiving a signal from the force sensor 7. If the MCU receives a signal from the capacitive touch sensor 6, 12 and the force sensor 7 simultaneously or within a predetermined time frame, the UI button press will be accepted, and the related control action carried out. If the two signals do not occur simultaneously or within the predetermined time frame the related control action may be discarded. Similarly, a predetermined minimum force threshold value may be needed for the electronic circuit to detect sensor data from the force sensor. If the applied force is below the minimum force threshold value, the related control action may be discarded.
[0076] According to the embodiments described above and shown in figures 1-8, the principle of detecting the position of a user’s finger on the housing of the electronic device, i.e. pressing a specific UI capacitive touch button for a carrying out a specific function of the electronic device by using capacitive touch sensors 6, 6a, 6b, 6c specifying this function and combining simultaneous detection of the sufficient pressure from the user applied force by the force sensor 7 is the same throughout the embodiments of the electronic device, e.g. a hearing device, and in the method carried out in the electronic device.
[0077] Although particular features have been shown and described, it will be understood that they are not intended to limit the claimed invention, and it will be made obvious to those skilled in the art that various changes and modifications may be made without departing from the scope of the claimed invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than restrictive sense. The claimed invention is intended to cover all alternatives, modifications and equivalents.
[0078] ITEMS
[0079] 1. An electronic device comprising:
[0080] - a housing;
[0081] - one or more capacitive sensors forming part of one or more user interface touch buttons arranged in or at the housing;
[0082] - a force sensor arranged within or at the housing;
[0083] - an electronic circuit arranged within the housing, and being configured to detect / receive capacitive data from the one or more capacitive sensors and to detect / receive force data from the force sensor, the capacitive data being indicative of a specific user interface touch button being pressed by a user, and the force data being indicative of a pressure being applied to the housing by a user of the electronic device;
[0084] wherein the electronic circuit is configured, upon simultaneous detection of capacitive data and force data, to determine that a specific user interface touch button related to the capacitive sensor has been pressed by the user of the electronic device and thereby having the electronic device carrying out a specific functionality indicated by the pressed user interface touch button.
[0085] 2. An electronic device according to any of the preceding items, wherein the simultaneous detection of the two sensor signals determining that a specific user interface touch button has been pressed by the user is defined by a predetermined minimum time threshold value.
[0086] 3. An electronic device according to any of the preceding items, wherein the simultaneous detection of the two sensor signals determining that a specific user interface touch button has been pressed by the user is defined by a predetermined minimum force threshold value.
[0087] 4. An electronic device according to any of the preceding items, comprising:
[0088] - one or more groups of sensors, the sensors being arranged in mutual proximity within or at the housing; the one or more groups each comprising a force sensor and one or more capacitive sensors so that upon simultaneous detection by the electronic circuit of capacitive data and force data within the same group, the electronic circuit is configured to determine that a specific user interface touch button related to the capacitive sensor within the group has been pressed by the user of the electronic device.
[0089] 5. An electronic device according to any of the preceding items, comprising an acoustic output transducer for rendering audio signals.
[0090] 6. An electronic device according to any of the preceding items, comprising an acoustic input transducer for capturing acoustic signals.
[0091] 7. An electronic device according to any of the preceding items, wherein the electronic device is a hearing device configured for inputting acoustic signals via an acoustic input transducer and / or for rendering audio signals via an acoustic output transducer.
[0092] 8. A hearing device according to item 7, wherein the hearing device is a hearing instrument such as a hearing aid, such as a binaural hearing aid.
[0093] 9. A hearing device according to item 7, wherein the hearing device is a personal audio communication device, such as a hearable, a headset or a speakerphone for transmitting / receiving audio from and / or to an external communication device connected to the personal audio communication device.
[0094] 10. A hearing device according to any of the items 7 to 9, wherein the hearing device is an in-ear hearing device, or an on-ear hearing device, or an over-ear hearing device.
[0095] 11. An electronic device according to any of the items 1 to 6, wherein the electronic device is a controller for a hearing device.
[0096] 12. An electronic device according to any of the items 1 to 6 or 11, wherein the electronic device is a charging case for a hearing device.
[0097] 13. An electronic device according to any of the preceding items wherein the electronic circuit comprises a microcontroller unit (MCU) for processing sensor data.
[0098] 14. An electronic device according to any of the preceding items wherein the electronic circuit further comprises a wireless module for transmitting and receiving audio communication according to a wireless protocol.
[0099] 15. An electronic device according to any of the preceding items, wherein the electronic device further comprises an audio decoder.
[0100] 16. An electronic device according to any of the items 1 to 10 or 13 to 15, wherein the electronic device is an audio-visual (AV) device, such as a video conference camera or a combined video-and soundbar.
[0101] 17. A method for detecting if a user interface touch button in an electronic device has been activated by a user of the electronic device:
[0102] - in an electronic circuit of the electronic device:
[0103] - detecting if a capacitive input from a capacitive touch sensor related to the user interface touch button is received;
[0104] and in the affirmative event
[0105] - detecting if an input from a force sensor, indicating that a force is applied on the force sensor, is received;
[0106] and in the affirmative event then
[0107] - in the event of simultaneously receiving capacitive sensor data and force sensor data in the electronic circuit, carrying out a desired user interface functionality of the electronic device.
[0108] LIST OF REFERENCES
[0109] 1 Electronic device, hearing device
[0110] 2 Earcup
[0111] 3 Headband
[0112] 4 Earcushion
[0113] 5 User / User’s finger
[0114] 6, 6a, 6b, 6c, 86 Capacitive touch sensor
[0115] 7 Force sensor
[0116] 8 Housing
[0117] 9 Printed / flexible circuit board (PCB / FCB)
[0118] 10 Speaker, loudspeaker of a speakerphone
[0119] 11 Flexible member / part of housing
[0120] 12 User interface touch button (s) / Key (s)
[0121] 13 Electronic circuit, microcontroller unit (MCU)
[0122] 14 Audio decoder
[0123] 15 Antenna
[0124] 16 Microphone
[0125] 17 Speaker / Loudspeaker
[0126] 20 Charging case / controller
[0127] 30, 60 Speakerphone
[0128] 40, 50 Electronic device
[0129] 51, 52, 61 Applied force
[0130] 62 Transferred force
[0131] 70 Flow chart of method
[0132] 71 Start, provide electronic device
[0133] 72 Detect capacitive touch
[0134] 73 No
[0135] 74 Yes
[0136] 75 Force applied?
[0137] 76 No
[0138] 77 Yes
[0139] 78 Determine key event
[0140] 80 Electronic device
Claims
1.An electronic device comprising:- a housing;- one or more capacitive sensors forming part of one or more user interface touch buttons arranged in or at the housing;- a force sensor arranged within or at the housing;- an electronic circuit arranged within the housing, and being configured to detect / receive capacitive data from the one or more capacitive sensors and to detect / receive force data from the force sensor, the capacitive data being indicative of a specific user interface touch button being pressed by a user, and the force data being indicative of a pressure being applied to the housing by a user of the electronic device;wherein the electronic circuit is configured, upon simultaneous detection of capacitive data and force data, to determine that a specific user interface touch button related to the capacitive sensor has been pressed by the user of the electronic device and thereby having the electronic device carrying out a specific functionality indicated by the pressed user interface touch button.2.An electronic device according to any of the preceding claims, wherein the simultaneous detection of the two sensor signals determining that a specific user interface touch button has been pressed by the user is defined by a predetermined minimum time threshold value.3.An electronic device according to any of the preceding claims, wherein the simultaneous detection of the two sensor signals determining that a specific user interface touch button has been pressed by the user is defined by a predetermined minimum force threshold value.4.An electronic device according to any of the preceding claims, comprising:- one or more groups of sensors, the sensors being arranged in mutual proximity within or at the housing; the one or more groups each comprising a force sensor and one or more capacitive sensors so that upon simultaneous detection by the electronic circuit of capacitive data and force data within the same group, the electronic circuit is configured to determine that a specific user interface touch button related to the capacitive sensor within the group has been pressed by the user of the electronic device.5.An electronic device according to any of the preceding claims, comprising an acoustic output transducer for rendering audio signals.6.An electronic device according to any of the preceding claims, comprising an acoustic input transducer for capturing acoustic signals.7.An electronic device according to any of the preceding claims, wherein the electronic device is a hearing device configured for inputting acoustic signals via an acoustic input transducer and / or for rendering audio signals via an acoustic output transducer.8.A hearing device according to claim 7, wherein the hearing device is a hearing instrument such as a hearing aid, such as a binaural hearing aid.9.A hearing device according to claim 7, wherein the hearing device is a personal audio communication device, such as a hearable, a headset or a speakerphone for transmitting / receiving audio from and / or to an external communication device connected to the personal audio communication device.10.A hearing device according to any of the claims 7 to 9, wherein the hearing device is an in-ear hearing device, or an on-ear hearing device, or an over-ear hearing device.11.An electronic device according to any of the claims 1 to 6, wherein the electronic device is a controller for a hearing device.12.An electronic device according to any of the claims 1 to 6 or 11, wherein the electronic device is a charging case for a hearing device.13.An electronic device according to any of the preceding claims wherein the electronic circuit comprises a microcontroller unit (MCU) for processing sensor data.14.An electronic device according to any of the preceding claims wherein the electronic circuit further comprises a wireless module for transmitting and receiving audio communication according to a wireless protocol.15.A method for detecting if a user interface touch button in an electronic device has been activated by a user of the electronic device:- in an electronic circuit of the electronic device:- detecting if a capacitive input from a capacitive touch sensor related to the user interface touch button is received;and in the affirmative event- detecting if an input from a force sensor, indicating that a force is applied on the force sensor, is received;and in the affirmative event then- in the event of simultaneously receiving capacitive sensor data and force sensor data in the electronic circuit, carrying out a desired user interface functionality of the electronic device.
Citation Information
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