Abstract: OCT-display for vitreoretinal surgery may be foot pedal controlled. Specifically, the tissue layers displayed in an en face image generated from OCT scanning may be navigated downward or upward based on user input supplied by a foot pedal device.

Abstract: An overdose of opioids can cause the user to stop breathing, resulting in death. A physiological monitoring system monitors respiration based on oxygen saturation readings from a fingertip pulse oximeter in communication with a smart mobile device and sends opioid monitoring information from the smart mobile device to an opioid overdose monitoring service. The opioid overdose monitoring service notifies a first set of contacts when the opioid monitoring information.

Abstract: A foot pedal assembly for controlling a robotic surgical system. The foot pedal assembly including a foot pedal base, a foot pedal and a sensor. The foot pedal moves relative to the foot pedal base and has a contact surface extending from a distal end to a proximal end of the foot pedal. The contact surface is to come into contact with a foot of a user during use of the foot pedal assembly for controlling the robotic surgical system and the distal end is farther away from a heel of the foot than the proximal end during use of the assembly for controlling the robotic surgical system. The sensor is coupled to the contact surface of the foot pedal at a position closer to the proximal end than the distal end, and the sensor is operable to sense a target object positioned a distance over the contact surface.

Abstract: Devices, systems and methods for controlling an exterior and dashboard lights of an autonomous vehicle are described. One example of a method for controlling one or more exterior lights includes receiving, from an autonomous driving system (ADS) of the vehicle, an input to control one or more exterior lights that are part of a lighting system of the vehicle, and transmitting, based on the input, a message to a controller area network (CAN) bus of the lighting system, the message being further based on a driver command upon a determination that a driver-initiated message is received. In an example, the lighting system of the vehicle further comprises a plurality of dashboard lights.

Abstract: A wearable device is disclosed. In one embodiment, the device includes: a sensor array having a plurality of sensors each detecting a physical change in epidermis of a corresponding body area and a body movement determination unit configured to determine movement of a body part based on sensing signals respectively received from the plurality of sensors.

Abstract: A one-handed input chording user input device for converting finger movements into digital input has a chassis configured to conform to human fingers with a plurality of articulating finger frames connected adjacent to each other, a plurality of user input elements, a processing device, and a signal transmitter. The plurality of user input elements is connected around the chassis in order to capture flexion, extension, adduction, and abduction movements of the plurality of articulating finger frames. The processing device interprets signals received from the plurality of articulating finger frames into desired output communication elements such as text characters. The signal transmitter sends the interpreted output to a computing device.

Abstract: Provided is a device for adaptively adjusting a layout of a touch input panel, including: an input information counting component, configured to count error input information of virtual keys in real time; a holding mode judgement component, configured to judge, when the number of error inputs occurring in a region on one side of the input panel is apparently more than the number of error inputs occurring in a region on the other side of the input panel, that the user is holding and operating a mobile terminal with a single hand and the user is currently holding, by the single hand, the side where fewer error inputs occur; and a panel layout adjustment component, configured to adjust an overall layout of the input panel and a current UI, and arrange the virtual keys to places where the single hand holding the mobile terminal is capable of completely controlling them.

Abstract: An accessory device for handheld electronic devices such as, for example, a cellular telephone, a smart phone, a media player, and a tablet computer includes circuitry for sensing flow of human breath and for communicating with the handheld electronic device, to enable user control of the handheld electronic device employing the flow of human breath.

Abstract: A personal medical device and method of use with restricted mode challenge having a personal medical device including: a memory operable to store programming code; a processor operably connected to the memory; a user input having input buttons to receive input from the user; and a user display to display output to the user. The processor is operable to: detect a user request for entry to the restricted mode; display a user input image on the user display, the user input image including display buttons corresponding to the input buttons; highlight one of the display buttons; detect actuation of one of the input buttons on the user input; and deny entry to the restricted mode when the one of the input buttons does not correspond to the highlighted display button.

Abstract: An image forming system including an image forming device and a portable terminal device communicably connectable to the image forming device is disclosed. An image forming device includes a touch panel, a detector section, a voice information generator section, and a transmitter section. The touch panel displays a softkey. The detector section detects a pressed position in the touch panel. The voice information generator section generates voice information concerning the position detected by the detector section and the softkey. The transmitter section transmits the voice information to the portable terminal device. The portable terminal device includes a receiver section, a voice data creator section, and a voice outputting section. The receiver section receives the voice information transmitted from the transmitter section. The voice data creator section creates voice data to be output based on the voice information. The voice outputting section outputs a voice based on the voice data.

Abstract: Changes of a user's emotion that occurs when content is reproduced and a user's surrounding environment that occurs when the content is reproduced are recorded as sensing meta data and content is reproduced in a reproducing mode corresponding to the recorded sensing meta data. Content supplied from a content providing section 11 is normally reproduced. A human body sensor 24 measures biological information of a user of content. An environmental sensor 25 measures a user's surrounding environment. A sensing meta data generating section 19 generates sensing meta data using information detected by at least one of the human body sensor 24 and the environmental sensor 25. A recording processing section 20 records the generated sensing meta data to a record medium 21. A reproducing processing section 23 reproduces sensing meta data. A reproducing control section 12 reproduces content in a reproducing mode that changes corresponding to the reproduced sensing meta data.

Abstract: Disclosed herein are technologies for providing an auxiliary input device. The auxiliary input device may provide data to a mobile host device. In some implementations, the auxiliary input device includes a photoelectric sensor that tracks movement and provides spatial data that manipulates a cursor displayed on a user interface of the mobile host device.

Abstract: Among other things, an apparatus includes a wheelchair control device sensitive to motion and adapted to attach to a user's head, and includes a wheelchair interface device in communication with the wheelchair control device and adapted to manipulate a control system of a motorized wheelchair in response to communication from the wheelchair control device. Among other things, a method includes causing a motorized wheelchair to change velocity in response to changing a position of a head-mounted wheelchair control device.

Abstract: A keyboard device for a small size tablet personal computer is provided. The keyboard device includes a first casing, a connecting plate, and a second casing. The first casing includes a first keyboard plate and a first recess. The second casing includes a second keyboard plate and a second recess. The connecting plate is connected with the first casing and the second casing. Consequently, the second casing is rotatable relative to the first casing. The first keyboard plate and the second keyboard plate are collectively defined as a whole keyboard to be operated by both hands of the user. Moreover, the small size tablet personal computer is accommodated within the first recess and the second recess collaboratively.

Abstract: An apparatus and an article of manufacture for controlling a voice site using a haptic input modality include validating a haptic input from an instrument capable of accessing a voice site, processing the haptic input on a server to determine a voice site command corresponding to the haptic input, and processing the voice site command at the server to control an interaction with the voice site.

Abstract: A keyboard includes a plurality of key tops having areas where light is transmitted; a gear link part provided below the key top and configured to vertically move the key top, a housing part provided below the key top, the housing part being configured to hold the gear link part; a rubber actuator configured to provide a reaction force based on vertical motion of the key top; a membrane sheet provided below the rubber actuator and having a contact, the contact being configured to open and close based on the vertical motion of the key top; a support panel provided below the membrane sheet, the support panel being configured to fix the gear link part with the housing part; a light guide plate provided below the support panel; and a light emitting diode configured to emit the light to a side surface of the light guide plate.

Abstract: An information processing apparatus, an input-mode adjustment method, and an input-mode adjustment program capable of allowing a user to input intended information are provided. The information processing apparatus determines whether the number of repetitions of deletion operation on information, such as a character string, is greater than a predetermined deletion operation threshold. When the number of deletion operations is greater than the deletion operation threshold, the information processing apparatus determines that a current input mode is not desired by a user, and changes the input mode.

Abstract: The method relates to a method and a device for controlling a Braille display having a read area suitable for displaying a portion of a text in Braille form, said read area comprising a row of Braille cells. The control device comprises: emitters, each suitable for emitting a light beam in register with a respective Braille cell; receivers, each suitable for receiving a light beam reflected by at least one finger of a user when said finger is situated on a Braille cell; and a calculation unit suitable for determining the position or the succession positions of a user's finger relative to the read area as a function of the detected light beams, the calculation unit being suitable for triggering commands for navigation in the text as a function of the determined positions.

Abstract: A data entry device including a housing including a top housing portion including key apertures, a plurality of data entry keys mounted in the housing to have data entry key depression travel paths in the housing, the plurality of data entry keys being associated with a substrate, which is disposed below the top housing portion and anti-tampering electrical conductors arranged between the top housing portion and the substrate thereby to prevent unauthorized access to the substrate.

Abstract: A portable terminal includes a finger sensor that recognizes, in response to contact of a finger, the contact and a movement of the finger; and a conversion unit that converts the movement of the finger recognized by the finger sensor into an input event corresponding to an operation instruction to an application running on the portable terminal. If a period of time from recognition of release of the finger from the finger sensor to recognition of placement of the finger on the finger sensor is less than a predetermined amount of time corresponding to physical limitations of a human, the conversion unit does not convert to the input event the recognition of placement of the finger, and recognition of a movement of the finger until recognition of release of the finger after the recognition of placement of the finger.

Abstract: An interactive cooking preparation device is presented. The user places ingredients that the user wishes to use in a recipe. The interactive cooking preparation device detects the ingredients placed by the user in the detection area of the interactive cooking preparation device using sensors. The detection results in a set of ingredient identifiers that correspond to the placed ingredients. A recipes database is then searched for the detected set of ingredient identifiers. The database search results in one or more suggested recipes. The suggested recipes are displayed to the user on a display device that is included in the interactive cooking preparation device. The user then selects one of the suggested recipes.

Abstract: Methods and systems for a MEMS detector that enables control of a device using human breath are disclosed and may include detecting air flow caused by human breath via a microelectromechanical systems (MEMS) detector, which may include deflectable members operable to detect the movement of air. The deflection of the members may be limited via a spacer within the MEMS detector. The amount of deflection may be determined by measuring reflected light signals, piezoelectric signals, capacitance changes, or current generated by the deflection in a magnetic field. Output signals may be generated based on the detected movement. The MEMS detector may include a substrate, a spacer, and the MEMS deflectable members. The substrate may include a ceramic material and/or silicon, and may include embedded devices and interconnects. An integrated circuit may be electrically coupled to the substrate. Air flows may be directed out of the side of the MEMS detector.

Abstract: Embodiments of the present invention disclose a touch-enabled input device for a computing system. According to one embodiment, the touch enabled device includes a housing having an input surface and a plurality of identifiable key areas formed along the input surface. The input surface of the device is configured to detect individual presses of each key area in addition to touch-based input from a user.

Abstract: There is described a foot-operated controller for providing discrete inputs to a machine to be controlled, comprising: a base; a foot-receiving member for receiving a foot of a user, the foot-receiving member movably secured to the base according to at least one degree of freedom and substantially extending within a plane; at least two switches each located at a different location between the base and the foot-receiving member and each activatable upon a corresponding motion of the foot-receiving member relative to the base; and a communication interface unit for connecting the foot-operated controller to the machine and transmitting to the machine a respective discrete command upon activation of the at least one switch, the discrete command corresponding to a discrete input for the machine, the foot-operated controller being connectable to a power source for powering at least the at least two switches.

Abstract: An electro-tactile display includes an electrode substrate provided with a plurality of stimulation electrodes, a conductive gel layer positioned between the stimulation electrodes and the skin of a wearer, a switching circuit section electrically connected to the stimulation electrodes, a stimulation pattern generating section electrically connected to the switching circuit, and means for alleviating a sensation experienced by the wearer as a result of the stimulation electrodes. In one aspect, the means for alleviating a sensation is configured from the conductive gel layer. The conductive gel layer has a resistance value equivalent to that of the horny layer of the skin. In another aspect, the means for alleviating a sensation is configured from the stimulation determination means and the threshold value adjustment means.

Abstract: An apparatus, method and program storage device are provided for preventing inadvertent inputs from a user while utilizing an electronic device having multiple user input devices. The instant invention broadly contemplates prioritizing an input device to the exclusion of other input devices available to the user based upon an intelligently designed prioritization scheme. The prioritization scheme disables the other input devices for a period of time to permit the user to provide inputs from a prioritized user input device.

Abstract: A device (2600) includes a controllable skin texture (2606) defining a keypad (2610), a sensor (2602), and control logic (200). The sensor senses a proximity of a pointing element (2900) to a particular key (2800, 2808, 2902, 2908) of the keypad based on a user input. The control logic adjusts a height of the particular key with respect to another key of the keypad in response to the sensor sensing the proximity of the pointing element to the particular key. In one example, the device includes a display (2700) for displaying a plurality of keys (2612). The control logic adjusts visual characteristics of the particular key (2800, 2808, 2902, 2908) and an adjacent key (2802, 2810, 2904, 2910) with respect to each other and with respect to other keys of the plurality of keys in response to the sensor sensing the proximity of the pointing element to the particular key.

Abstract: A keypad for a wireless device is disclosed. The keypad comprises one or more key stems, each key stem having an upper key stem surface. The keypad also comprises one or more keycaps configured to be mounted over the one or more key stems, each keycap having a lower keycap surface for bonding to the upper key stem surface of each key stem with adhesive. The upper key stem surface includes at least one depression and at least one groove along a perimeter of the upper key stem surface. The depression and groove can help reduce the risk of adhesive flow to undesirable areas.

Abstract: The invention provides an optical touch device, including a main body, a keyboard and a light emitting member. The keyboard, placed on the main body and having a first end portion and a second end portion, includes a supporting frame, a keycap and a stopping member. The keycap is connected to the supporting frame and moves between a first position and a second position. The stopping member is connected to the keycap and moves simultaneously with the keycap. The light emitting member generates a light beam to the keyboard. When the keycap is in the first position, the light beam passes through the first end portion to the second end portion, and when the keycap is in the second position, the light beam is terminated by the stopping member, such that the light does not reach the second end portion.

Abstract: An interface system and method are provided for facilitating cross-disability access to an electronic device. A first screen of a plurality of screens is displayed on the electronic device. Each screen includes at least one of a non-input element and an input element. The interface system includes a keyboard having a plurality of alpha-numeric keys and a plurality of keys or selectors that allow a user to navigate through the non-input elements and input elements of the plurality of screens.

Abstract: Keyboard configurations are described. In embodiments, a keyboard includes a microcontroller to register key inputs, a memory to store time durations that correspond to the key inputs, and an algorithm that generates an input signature based on the time durations that correspond to the key inputs. The input signature can be used for user authentication and identity theft protection, and/or used to validate users for access to a computer system. The input signature may also include a watermark, a timestamp, or voice stamp for further security. An input system that includes a keyboard can provide multi-modal biometric protection by supplementing keystroke-scans with fingerprint, voice-scan, signature-scan and mouse-scan verification.

Abstract: A mobile device having first and second modes of operation is operated responsive to detection of a predefined localized movement of a housing of the mobile device using a sensor associated therewith. The detected predefined localized movement is associated with first and second functions of the mobile device responsive to a user input assigning the detected predefined localized movement thereto. A first device function is performed responsive to detection of the predefined localized movement in the first mode of operation, and a second device function is performed responsive to detection of the predefined localized movement in the second mode of operation. A predetermined delay time may also be associated with the predefined localized movement, and the first and/or second functions may be performed at the predetermined delay time after detecting the predefined localized movement.

Abstract: The application provides an electronic device. The electronic device includes a main body and a cover. The main body has a sheet and the sheet includes a first key set and a second key set. The cover, slidably disposed on the main body between a first configuration and a second configuration, includes a first portion and a second portion connected thereto. The first key set is visible through the first portion and the second portion covers the second key set when the cover is in the first configuration, and the second key set is visible through the first portion and the second portion covers the first key set when the cover is in the second configuration.

Abstract: Provided is a technology for controlling a contents player based on a grasping power information of a hand by measuring a change of the bundle shape of a tendons in an inside muscle of wrist, in which the device and method for controlling the contents player comprises a sensing unit that generates a grasping power information; a control state managing unit that manages a control state of the contents player; and a control order generating unit that generates a control order controlling the contents player based on the control state and the grasping power information, and transmits the control order, in which the control state can be changed or can be generates in response to the grasping power information, and the sensing unit can be existed in both hands, respectively.

Abstract: The present invention relates to a Hangeul input keypad and a method using the same. Basic consonants and basic vowels are assigned to the Hangeul input keypad, the number of the basic consonant-assigned keys is less than that of the basic vowel-assigned keys, the consonant keys and the vowel keys are disposed separately, and a shift key converting the basic consonants to extended consonants is disposed adjacent to the consonant keys to which the basic consonants convertible to the extended consonants are assigned. The Hangeul input keypad and method according to the present invention improves speed of Hangeul input, provides convenience in operation of consonant keys and a shift key, and ease of a user's learning of the Hangeul input method by optimizing the disposition of the consonants and vowels.

Abstract: A tactile feedback system includes: a removing section for removing a contact-device-specific oscillating waveform, included in both a first contact-generated waveform representing a frictional vibration produced when a contact device contacts with one object and a second contact-generated waveform representing a frictional vibration produced when the contact device contacts with another object, from the first contact-generated waveform; a superposing section for superposing a finger-pulp-specific oscillating waveform, included in both the first finger-pulp-generated waveform representing a frictional vibration produced when a person's finger pulp contacts with the one object and the second finger-pulp-generated waveform representing a frictional vibration produced when the finger pulp contacts with that another object, on the first contact-generated waveform from which the contact-device-specific oscillating waveform has been removed; and a simulating section for displaying a vibration stimulation based on t

Abstract: Systems, products, and methods are disclosed for facilitating a method of mapping a numerical keypad to keys of a keyboard on a mobile communications device based on an initial selection of an edge key. One embodiment of the method includes receiving input by way of a given key of the keypad and then dynamically configuring that given key to be a numerical key of a numerical keypad. In particular, input received by way of the numerical key is interpreted as a corresponding numeral regardless of a prior configuration associated with the numerical key. Further, keys of a keyboard within a proximity of the numerical key are mapped to remaining numerical keys of the numerical keypad.

Abstract: A system and method are provided for audibly interpreting a screen display. The method comprises: locating a display interpreter (DI) with a tactile matrix of sensors overlying a display screen; in response to sensing a proximate pointer, accepting a tactile matrix region selection; loading a first reference map, cross-referencing DI tactile matrix regions with a first field of screen icons; loading a second reference map, cross-referencing screen icons with audible recordings identifying the screen icons; mapping a screen icon to the selected tactile matrix region; and, audibly identifying the mapped screen icon. That is, the DI uses the second reference map to cross-reference the located screen icon to the audible recording identifying the screen icon, and plays the recording. In one aspect, the DI can be located over a touchscreen with touchscreen icons. Then, the method may further comprise engaging a touchscreen icon.

Abstract: A device for transferring keyboard commands from a user to an electronic apparatus or machine. An arm intended to be carried by the user as a headset, is provided with signal sensors responding to the presence or pressure of the user's tongue by emitting an electric signal or impulse. A signal unit registers and converts signals from the sensors into corresponding keyboard commands which are then input to the electronic device or machine. The device thus basically works as a keyboard where the signal sensors constitute keys that can be operated solely by the tongue, i.e. without involving the hands.

Abstract: A method of distinguishing input signals detected by a mobile terminal is provided. The method comprises detecting at least a first and a second input signal, wherein a first vibration signal is associated with the first input signal and a second vibration signal is associated with the second input signal; and outputting a combined vibration signal corresponding to at least the first and second input signals. The first and second input signals may be proximity signals, touch signals, or a combination thereof. The combined vibration signal may be outputted according to a characteristic of at least the first and second input signals.

Abstract: This invention generally relates to a communication system founded on character recognition utilizing a graphical display and method of use thereof. The invention is primarily directed to enable communication with disabled individuals in conjunction with a communication partner or receiver who manipulates a graphical display. The primary focus of the present invention is to provide a communication system that enables expeditious discovery of the sender selected series of characters, thereby permitting time-effective communications. The present invention utilizes a graphical display where characters are grouped into quadrants, chunks, or the like. The characters comprising the quadrants are further organized based on a set of character guidelines. The set of character guidelines include, but not limited to character frequency of occurrence, consonant blend considerations, and the like.

Abstract: The image forming method includes: applying two or more kinds of ink compositions having different hues onto a recording medium to form a multi-color image, each ink composition containing a pigment, water, and 5% by mass to 15% by mass of polyvalent (meth)acrylamide represented by the following formula (1) with respect to the total amount of the ink composition; and applying a treatment solution, containing an aggregation component onto the recording medium. In the image forming method, an average diameter ?1 (?m) of droplets of the ink compositions on the recording medium satisfies the following relational expression (1), and an application density of droplets having a minimum volume of ink composition on the recording medium is 80% or more (Q: n-valent linking group, R1: H, methyl group, n?2). (2.54×10000/R)×1.5??1?(2.54×10000/R)×1.7??Relational Expression (1) wherein, R represents a resolution (dot per inch) of an image.

Abstract: Provided is a system controller device intended for use by persons having limited or no use of their hands. The device includes a first air sensor configured to provide a first electromagnetic signal representative of an air pressure or an air-flow, or a combination thereof, a second orientation sensor configured to provide a second electromagnetic signal representative of a relative orientation or a change of orientation, or a combination thereof, of said first sensor, a third linear position sensor configured to provide a third electromagnetic signal representative of a relative position or change of position, or a combination thereof, of said first sensor along a linear carriage, and a signal processor configured to combine said first, said second and said third electromagnetic signals to provide an event message.

Abstract: A computer keyboard which enables a computer to automatically recognize nomenclature information (ID) of keys is provided. Preferably, the keyboard contains a first memory which stores a table in which nomenclature information (ID) of keys and resistance values are associated with each other, a resistor having a resistance value substantially equal to any one of the resistance values, and a controller connected to the first memory and the resistor. The controller detects the resistance value of the resistor and reads the ID of the key corresponding to the resistance value from the table.

Abstract: Methods, systems, and apparatus, including computer program products, for generating feedback. In one aspect, a method includes receiving sensor data from a plurality of sensors, wherein at least one of the plurality of sensors is associated with a mobile device of a user; aggregating the received sensor data to generate aggregated sensor data; processing the aggregated sensor data to determine an aggregated metric; comparing the aggregated metric to a target associated with the user to determine a measure of performance; and generating feedback based on the determined measure of performance. Further, the mobile device can comprise a mobile personal services device that includes one or more of an audio sensor, a video sensor, an environmental sensor, a biometric sensor, a location sensor, an activity detector, and a health monitor. The feedback can be displayed on the mobile personal services device. The feedback also can be displayed in near real-time.

Abstract: The present disclosure generally relates to tactile display devices that include a reservoir for containing a driving fluid. A plurality of toxel portions may be sensitively drivable by the fluid for causing toxels to be displayed, and a pump member associated with the reservoir and toxel portions may pump the fluid from the reservoir to selected toxel portions to display a tactile image. The pump member may include an electro-osmotic pump configured to pump the fluid electro-osmotically in response to an applied voltage, and may be configured to selectively pump the fluid to generally activate the toxels independently from each other. The toxel layer may include the plurality of toxels as well as an elastomeric membrane that may have a pattern of the toxels, and may be configured such that the toxels may be expandable generally independently of each other in response to increased pressure of the fluid pumped into association therewith.

Abstract: The invention provides an optical touch device, including a main body, a keyboard and a light emitting member. The keyboard, placed on the main body and having a first end portion and a second end portion, includes a supporting frame, a keycap and a stopping member. The keycap is connected to the supporting frame and moves between a first position and a second position. The stopping member is connected to the keycap and moves simultaneously with the keycap. The light emitting member generates a light beam to the keyboard. When the keycap is in the first position, the light beam passes through the first end portion to the second end portion, and when the keycap is in the second position, the light beam is terminated by the stopping member, such that the light does not reach the second end portion.

Abstract: A wireless keyboard base includes a base, a wireless keyboard and a plurality of magnets. The base has a groove to accommodate an edge of an electronic device. The wireless keyboard is disposed on the base and has a wireless communication module to exchange information data with the electronic device. The plurality of magnets are disposed within the groove to magnetically attract the edge of the electronic device.

Abstract: A system for controlling a computer by thoughts in the user's brain. The system applies stimuli of the brain via magnetic source imaging (MSI) for controlling the computer. Patterns of brain stimuli are recorded along with the particular thoughts that produced them and these thoughts are interpreted as functions for controlling the computer in much the same way as inputs from a keyboard or mouse. Criteria of acceptance of thought stimuli are generated by the system. Body stimuli, in addition to the brain stimuli, are monitored and used by the system. A user profile is maintained and displayed along with selected pictures for assisting with stimuli/thought pattern utilization. Artificial intelligence is used to enhance stimuli selection, human factors and reliability, as well as analyzing past errors, adverse occurrences and performance.

Abstract: A device to facilitate a user interface of a computer system utilizing breath includes a body, a user side inlet defined by the body to receive a fluid flow generated by a user, an exhaust opening defined by the body, a conduit positioned between the user side inlet and the one exhaust opening, at least one segment positioned inside the body and one or more contactors positioned to be intermittently in contact with the at least one segment. The contact may occur responsive to the fluid flow generated by the user. The device may include a sensor to react to a movement of the at least one segment.