Abstract: A wearable display apparatus for viewing video images of scenes and/or objects illuminated with infrared light, the display apparatus including a transparent display that is positioned in a user's field of vision when the display apparatus is worn, a stereoscopic video camera device including at least two cameras that each capture reflected infrared light images of a surrounding environment and a projection system that receives the infrared light images from the stereoscopic camera device, and simultaneously projects (i) a first infrared-illuminated video image in real-time onto a left eye viewport portion of the transparent display that overlaps a user's left eye field of vision and (ii) a second infrared-illuminated video image in real-time onto a right eye viewport portion of the transparent display that overlaps a user's right eye field of vision.

Abstract: A personal protective device is combined with a cellular telephone. Activation of either device causes activation of the other device. Activation is achieved by a switch or voice command. Upon activation, a message asking for assistance at the present location is sent to a previously agreed upon emergency contact. The smartphone also starts both audio and video recording, which are also part of the data sent to the emergency contact person or service. Additionally, the personal protective devices are integrated into a unit that may combine such items as a protective spray, Taser, strobe light, dye pack, siren and other deterrent technologies to ward off would-be attackers. These devices are integrated into a hand held unit that can be unobtrusively worn or carried in a purse or pocket or in the user's hand. An optical safety device is included to protect the user from a potential assailant approaching from rearward.

Abstract: A portable video and imaging system includes a camera for capturing video of an event, and a video recording device for recording the captured video of the event. The camera is housed in a first housing, the recording device is housed in a second housing, and the first and second housings are physically separate. Various embodiments provide for the system to be mounted to a user's body, an article of clothing, such as a shirt or a hat, to a vehicle, or to an ancillary component carried by the user, such as a firearm.

Abstract: A user of a computing system gazes at an image of visible objects in the user's field of view. The computing system determines the direction of the user's eye gaze into the field of view, and augments the image seen by the user with a computer-generated gaze direction indicator. The computing system may also determine the direction of an auxiliary pointer into the field of view, and may further augment the image seen by the user with a computer-generated auxiliary pointer direction indicator. The gaze direction indicator may be adjusted based on the user's eye movement and the auxiliary pointer direction indicator may be adjusted based on manipulation of the auxiliary pointer. The direction indicators may intersect over an object in the user's field of view, and may be displayed on a transparent display screen positioned between the user and the object.

Abstract: Across the planet, the fear of physical attacks is experienced daily by millions of men and women, especially those walking or running alone in secluded areas. In many instances, attacks start from behind, exploiting a weakness in our forward-facing vision system. To address this, the present inventor devised, among other things, a rear-facing clip-on sensor that attaches to the back of a user, detecting rear-approaching objects or persons, and vibrating or beeping to alert the user. In some embodiments, the clip-on sensor includes a digital camera and a wireless transceiver to communicate with a smartphone or smartwatch, not only allowing the smartphone or smartwatch to alert the user via audible, visible, and/or tactile (haptic) alarms, but also to send SOS signals and real-time audio and/or video signals to designated persons or security services.

Abstract: Systems and methods for presenting social content on a map are provided. In some aspects, a method includes receiving a new content item. The new content item is not associated with a social network group comprising a set of subject members and a set of viewing members. The method also includes determining that the new content item is related to the social network group. The method also includes storing the new content item in association with the social network group. The method also includes associating the new content item with a geographic location. The method also includes providing for display a map and an indication of the social network group. The map includes a representation of the new content item. The representation of the new content item is positioned on the map proximate to the geographic location on the map.

Abstract: A capture, a storage that stores data of a video image captured by the capture, an attribute information assigning switch that inputs an operation of assigning attribute information related to the data of a video image, and an attribute selecting switch that inputs an operation of selecting the attribute information are included. When there is an input from the attribute information assigning switch, the attribute information associated with a setting state of the attribute selecting switch is stored in the storage by being assigned to data of a video image.

Abstract: Systems and methods are provided for providing access to secure-access facilities based on pairing of the secure-access facilities with a user device such as a wearable device. A pairable secure-access facility may be a public storage facility or device such as a locker that includes communications circuitry for pairing with the user device. Once paired with the user device, the locker may operate a locking mechanism to lock the locker when the user device is away from the locker and to unlock the locker when the user device is in the vicinity of the locker. The locker may include a beacon for detecting and pairing with the user devices. Pairing the user device and the locker may include entering a locker identifier into the user device to ensure that the intended user device is paired with the intended locker.

Abstract: Methods for determining a property of a trajectory of a ball with a mobile computer device are described, which include: (a) capturing a sequence of video frames of the ball with a camera of the mobile computer device; (b) determining a first picture coordinate of the ball in a first video frame of the sequence; (c) determining a second picture coordinate of the ball in a second video frame of the sequence; and (d) computing a property of the trajectory of the ball based on a difference of the first and second picture coordinates, a time difference between the first and second video picture and a reference quantity, which may be determined based on a form and/or dimension of the ball in a picture taken with the camera.

Abstract: A personal protective device is combined with a cellular telephone. Activation of either device causes activation of the other device. Activation is achieved by a switch or voice command. Upon activation, a message asking for assistance at the present location is sent to a previously agreed upon emergency contact. The smartphone also starts both audio and video recording, which are also part of the data sent to the emergency contact person or service. Additionally, the personal protective devices are integrated into a unit that may combine such items as a protective spray, Taser, strobe light, dye pack, siren and other deterrent technologies to ward off would-be attackers. These devices are integrated into a hand held unit that can be unobtrusively worn or carried in a purse or pocket. An optical safety device is included to protect the user from a potential assailant approaching from rearward.

Abstract: A system for determining a life threatening condition of a human may include at least one mobility sensor couplable to a human body and configured to measure mobility parameters of said human body; at least one physiological sensor couplable to a human body and configured to measure physiological parameters of said human body; at least one environmental sensor configured to measure environmental parameters indicative of an environment of said human body; and a computer processor configured to apply a decision function configured to determine a predefined life endangering condition of said human body, based on said measured mobility, physiological, and environmental parameters, and statistical relationship therebetween.

Abstract: Embodiments related to storing and utilizing information of a sink device for establishing communication. A source device retrieves the information of a previously connected sink device stored in the source device to reduce data exchanged during a handshaking operation. Information of the sink device not stored in the source device may be stored in the source device for future usage. The source device receives identification information of the sink device via a medium. The source device also searches for capabilities information associated with the identification information in the source device. In addition, the source device encodes the content for transmission to the sink device via the medium in a format compliant with capabilities of the sink device according to the capabilities information.

Abstract: A method and a system determine track availability. The system is configured to be fitted to a guided vehicle liable to move downstream on a track. The system contains at least one camera able to capture images of a downstream section of track. The downstream section being a track portion extending from a first point of the track located downstream of the guided vehicle to a second point of the track located downstream of the guided vehicle. The distance separating the camera from the second point is being greater than the distance separating it from the first point. At least one image processing and analysis device is provided and is able to analyze each image taken by each camera, to locate the downstream section therein, to determine first a downstream safety distance, and second an availability state of the track between the first point and the second point.

Abstract: In a monitoring system, a master device stores setting information indicating a predetermined state for detecting a target by using a sensor in a storage unit, and transmits the setting information to a camera (a baby monitoring camera or a monitoring camera) having a sensor built thereinto or correlated with a sensor so as to set a detection parameter therein. When the predetermined state set by the detection parameter is detected, the camera transmits a detection notification to the master device. When the detection notification is received from the camera, the master device transmits detection notification information to a smartphone, and the smartphone displays a detection information screen based on the detection notification information transmitted from the master device on a display/input unit.

Abstract: A method of reducing data transfer while increasing image information over an 802.15.4 network includes obtaining an image with a sensor, modulating a representation of the image using a first 802.15.4 modem, sending the representation of the image to a coordinator, demodulating the representation of the image using a second 802.15.4 modem, and digitally enhancing at least one of the representation of the image and the image. A system for communication over an 802.15.4 network includes a sensor for obtaining data, the size of the data being at least an order of magnitude greater than the size of an 802.15.4 packet, a first 802.15.4 modem coupled to the sensor, a buffer for temporarily storing the data to allow transmission of portions of the data; the buffer being coupled to the sensor, a coordinator coupled to the sensor, the coordinator being capable of communicating with a computer, and a second 802.15.4 modem coupled to the coordinator.

Abstract: An intelligent video/audio observation and identification database system may define a security zone or group of zones. The system may identify vehicles and individuals entering or exiting the zone through image recognition of the vehicle or individual as compared to prerecorded information stored in a database. The system may alert security personnel as to warrants or other information discovered pertaining to the recognized vehicle or individual resulting from a database search. The system may compare images of a suspect vehicle, such as an undercarriage image, to standard vehicle images stored in the database and alert security personnel as to potential vehicle overloading or foreign objects detected, such as potential bombs. The system may further learn the standard times and locations of vehicles or individuals tracked by the system and alert security personnel upon deviation from standard activity.

Abstract: An information processing apparatus includes a decision unit configured to determine whether the existence of the plurality of content data pieces is to be displayed using individual information corresponding to each piece of the content data or using representative information that combines the content data pieces into one based on the display position of the information indicating existence of each piece of the content data, and a display control unit configured to control a display unit to display the information indicating existence of the content data based on the display position based on a determined result of the decision unit. The display control unit controls the display unit to change a display form of the representative information according to whether at least one of the plurality of content data pieces of which existence is displayed by being combined into the representative information satisfies a predetermined condition.

Abstract: A method and use are described for disabling certain wireless communication device functionalities based on input from the device's user-facing camera. More particularly, image data of the user is collected, image analysis is used to extract certain metrics about the user, and if those metrics are in violation of one or more thresholds one or more device functionalities are disabled. The functionality may be disabled for a period of time or until the user's image metrics fall below one or more thresholds. The disabled device functionalities may also be extended to connected peripheral devices. Finally, records of threshold violations resulting in disabled device functionality may be stored on the device or a database and made available to third parties.

Abstract: A system, method, and computer product for reducing volume of transmissions of measurements of affective response are described herein. In one embodiment, an interaction analyzer receives a description of an interaction of a user with a media controller that controls presentation of content to the user. The interaction analyzer identifies from the description an action that causes a deviation from a progression of presentation of the content that would have occurred had the action not taken place. A transmitter sends a request to transmit measurements of affective response, taken by a sensor, during a window during which the user likely expressed an affective response related to the action. In some embodiments, the request is received by a transceiver coupled to the sensor with memory sufficient to store measurements of affective response of the user taken since the start of the window, which precedes the time the request is sent.

Abstract: The present invention provides a display apparatus and a display method for realizing control for display operations by a user precisely reflecting the user's status, i.e., the user's intentions, visual state and physical conditions. Worn as an eyeglass-like or head-mount wearable unit for example, the display apparatus of the present invention enables the user to recognize visibly various images on the display unit positioned in front of the user's eyes thereby providing the picked up images, reproduced images, and received images. As control for various display operations such as switching between the display state and the see-through state, display operation mode and selecting sources, the display apparatus of the present invention acquires information about either behavior or physical status of the user, and determines either intention or status of the user in accordance with the acquired information, thereby controlling the display operation appropriately on the basis of the determination result.

Abstract: According to various embodiments, a position capture input system uses a camera to capture an image of a displayed graphical user interface that may be partially obstructed by an object, such as a user's hand or other body part. The position capture input system also includes a software component that causes a computing device to compare the captured image with a displayed image to determine which portion, if any, of the graphical user interface is obstructed. The computing device can then identify any user interface elements with which the user is attempting to interact. The position capture input system may also include an accelerometer or accelerometers for detecting gestures performed by the user to, for example, select or otherwise interact with a user interface element. The position capture input system may also include a haptic feedback module to provide confirmation, for example, that a user interface element has been selected.

Abstract: A system for Virtual Navigation in real and Virtual Spaces. Such navigation in Virtual spaces may be applied particularly in 3D computer games and 3D programming of motion pictures. Such navigation in real spaces creates a new paradigm in communication and media particularly with unique 3 D video interface devices disclosed in this invention.

Abstract: A portable radiation imaging system (10) includes a radiation source (11), a radiation detector (7), a remote trigger unit (17) that activates the radiation source (11) and the radiation detector (7) to initiate an imaging operation, a computing device (13) that receives and processes image data generated by the radiation detector (7), and a universal power box (UPB) (1) operatively connected to the radiation source, the radiation detector, the trigger unit and the computing device. A first wireless link (50) is established between the UPB (1) and the computing device (13), and a second wireless link (60) is established between the trigger unit (17) and the UPB (1). Under the control of the UPB (1), the trigger unit uses the second wireless link (50) to send a control signal to the radiation source (11) to initiate the radiation operation, and the computing device (13) uses the first wireless link (50) to receive image data from the radiation detector (7).

Abstract: This invention is a wearable, automatic, and tamper-resistant device and method for monitoring and measuring food consumption and caloric intake. It can help people to manage their energy balance and weight. It can be embodied as: (a) one or more automatic-imaging members that are worn on a person from which these members collectively and automatically take pictures of the person's mouth and pictures of a reachable food source when the person eats; (b) a tamper-resisting mechanism which detects and responds if the operation of the one or more automatic-imaging members is impaired; and (c) an image-analyzing member which automatically analyzes pictures of the person's mouth and pictures of the reachable food source in order to estimate the types and quantities of food that are consumed by the person.

Abstract: A smart helmet includes a helmet shell, a visor, and a projector mounted on the helmet shell. The helmet shell defines an internal cavity and a passage communicating with the internal cavity. The internal cavity is configured to receive an user's head. The visor is rotatably coupled to the helmet shell, and is configured to expose or cover the passage. The projector is configured to introduce content for display onto the visor.

Abstract: There is provided an information processing apparatus including an action recognition unit configured to recognize an action state of a user based on a measurement result obtained by a sensor carried by the user, and a photographing control unit configured to control timing at which a photographing unit carried by the user is allowed to perform photographing based on the recognized action state of the user.

Abstract: The invention discloses technological improvements to acoustic devices, particularly the headphone, previously functioning as an audio device but now being configured as a smart, acoustic multimedia device comprising, but not restricted to, a headband and two earpieces, which may be worn on, over, around the head/ear, or handheld. Either of the earpieces or headband houses a smart mobile telephone base system (consisting of an internal circuit board fitted with Internal/flash/Micro-USB/SD card and/or cloud-integrated memory, a full duplex transceiver/transmitter-receiver unit which is functional at different frequencies and capable of modulation/demodulation) thus possessing the ability for use as a UE (user equipment/smart mobile device); a smart alert response/surveillance/security camera; and micro-speakers which provide loudspeaker functions when remotely connected to an external audio source. All features are operable through a control interface and/or a smart remote controller unit.

Abstract: Improvements in a video system are presented that uses one or more camera(s) with a display system. The camera and display system operate together to allow a person to view the back or side of their head as they apply makeup or style their hair. The use of multiple cameras allows the person to view their hair, face or profile from different angles without requiring a single camera to be re-positioned or requiring the person to turn their head to view a particular area. The video system can blend the image from multiple cameras to achieve a view that is not from a single camera. The blending or morphing of the image allows the user the ability to obtain a view from nearly any angle without requiring them to move their head or adjust the camera angle.

Abstract: A head bracket for providing multiple horizontal panoramic pictures simultaneously comprises a video camera, a longitudinally rotating motor, a transversally rotating motor, sliding rings, a connection interface, and a support. A supporting pipe is arranged at center of head bracket and provided with multiple coaxial heads. Sliding rings are arranged at center of coaxial heads and fixed on supporting pipe. The video camera is mounted on fixing bracket of outer case of sliding rings. A longitudinally rotating belt pulley on video camera is connected to longitudinally rotating motor through a belt, and a transversely rotating belt pulley on sliding ring is connected to the transversely rotating motor through a belt; wherein the transversely rotating motor is fixed on a bottom plate fixed on the supporting pipe. The supporting pipe is internally provided with cables and cable connectors. The connection interface is arranged at the tail end where cables gather.

Abstract: In general, embodiments of the present invention provide methods, apparatus, systems, computing devices, computing entities, and/or the like for detecting possible traffic violations of vehicles. For example, in one embodiment, this may include receiving an indication that a school bus has entered or is entering a stopped position. After receiving an indication that the school bus has entered or is entering the stopped position, an area proximate the school bus can be monitored to detect possible traffic violations.

Abstract: A scout system having a wearable article with a camera coupled to a remote handset device such that captured video data is compressed prior to transmission to the remotely coupled handset device. Having a wired transmission channel between a wearable article with a camera allows a user to wear the video capture device, such as sunglasses, on the user's head, while the remote handset device, which may be better suited for transmitting captured video data to a remote computer via a wireless communication channel, can be stored in a pocket or the like. Further, the wearable article includes a video compression block such that the bandwidth of video data transmitted to the remote handset is kept to a manageable level. Further, both the wearable article and the handset may have separate batteries, processors, and processing blocks so as to more evenly distribute the time-consuming and power-consuming aspects of recording and transmitting video data in real time.

Abstract: An optical relay system including a remote telescopic image capture device for mounting on a telescopic sight that splits off the image viewed through said sight. A camera sensor converts the split off viewed image into a corresponding electrical signal. An image processor conditions the electrical signal for the transmission via RF, and a RF transceiver transmits the signal wirelessly to a remote hand-held device including a display for receiving the transmitted signal, processing and reconstructing the viewed image and displaying it to show what is being viewed through the telescopic sight.

Abstract: Techniques for determining brand information and refining a position of a mobile device are described herein. An example of a method for displaying branding information on a mobile device includes receiving a reference image feature data table based on a rough location of the mobile device, such that the reference image feature data table includes a collection of entity records and wherein each entity record includes a plurality of logo image feature fields, obtaining an image including a displayed logo, utilizing an image recognition process and the reference image feature data table on the image to determine a recognized logo, and displaying brand information based on the recognized logo.

Abstract: A telepresence robot uses a series of connectible modules and preferably includes a head module adapted to receive and cooperate with a third party telecommunication device that includes a display screen. The module design provides cost advantages with respect to shipping and storage while also allowing flexibility in robot configuration and specialized applications.

Abstract: In one embodiment, a device includes a device body that includes a touch-sensitive display and a processor. The device also includes a band coupled to the device body and an optical sensor in or on the band. The optical sensor faces outward from the band and captures images. The processor communicates with the optical sensor to process captured images.

Abstract: A small wearable recall device is provided to capture images triggered by a combination of a detection of a capture condition (e.g., changes in motion, temperature or light level) followed by a relatively stable period, as detected by an accelerometer. By triggering on the combination of a detected capture condition followed by a detected stability condition, a clearer image of the environment of an interesting event is expected to be captured. The small size of the recall device makes it possible to integrate it into common portable consumer products, such as MP3 players, purses, clothing, hats, backpacks, necklaces, collars, and other human-wearable products.

Abstract: Enabling a passenger of a vehicle to enter or board the vehicle without necessarily having previously purchased a ticket or fare, and then to perfect a ticket purchase using their handheld device while on-board the vehicle.

Abstract: Methods and systems for determining states of environments and modifying the environments according to the states are disclosed. In one aspect, the method includes a robot device determining for an environment a state comprising a plurality of state attributes for the environment. The method further includes receiving a request for the state and, in response to receiving the request, modifying the environment to comprise at least some of state attributes. The robot device may determine the state by receiving indications of at least some of the state attributes from some or all of a user, a server, another robot device, and another device. The attributes may be user attributes for a particular user, or may be event attributes for a particular type of event. The request may take the form of a request from a user, a calendar event, or a user arrival.

Abstract: A camera system and method capture image data with a camera, a data storage device electrically connected to the camera and configured to store the video data and/or a communication device electrically connected to the camera and configured to communicate the image data to a system receiver located remote from the camera. The system receiver may be located onboard a vehicle such that an operator can carry the camera off board the vehicle and communicate the image data back to the vehicle, when performing, for example, work on the vehicle or inspecting the vehicle or the environs of the vehicle.

Abstract: An aiming system for portable weapons comprising pairs of inertial sensors of gyroscopic, accelerometer and magnetometric type arranged respectively on a weapon and on an helmet with Head Up Display, so as to determine both the relative orientation and the relative position in space of the weapon and of the helmet, with consequent display of the line of fire on the Head Up Display.

Abstract: A real time system to both televise and stream sporting events from sports paraphernalia that are ordinarily used by the players on soccer playing fields, ice hockey rinks, tennis courts, baseball playing fields and football playing fields are disclosed. The sports paraphernalia are instrumented with a variety of TV cameras, microphones, and bi-directional communication electronics. Instrumented sports paraphernalia such as ice hockey goals, ice hockey pucks, soccer goals, tennis nets, tennis posts, baseball bases, baseball home plates, baseball pitcher's rubbers and footballs are disclosed. Instrumentation is built into and contained internally within some of the instrumented sports paraphernalia. Instrumentation is mounted and attached onto some of the sports paraphernalia. The instrumented sports paraphernalia can both televise signals to a TV viewing audience, and simultaneously stream onto the internet.

Abstract: A method includes displaying content on a television, detecting a personal display device in proximity of the television, detecting a selection of content displayed on the television, detecting an instruction associated with the selection, displaying, based on the instruction, information associated with the selection on the personal display device and displaying on the television an alert indicating that the information associated with the selection is on the personal display device.

Abstract: An embodiment of an eye-view image recording apparatus includes an eyeglass frame, at least one first optical unit disposed on the eyeglass frame for capturing an image corresponding to a field of view of a user, and at least one second optical unit disposed on the eyeglass frame for tracking movement of at least one eye of the user to determine a direction within the field of view to which the at least one eye is directed. The eye-view image recording apparatus further includes at least one processor for receiving the determination of the direction within the field of view to which the at least one eye is directed, and generating a subset of the captured image based on the determination.

Abstract: Systems and methods are disclosed that include a video-based analysis system that detects, tracks and archives vehicles in video stream data at multiple resolutions. The system includes an image capturing device that captures video stream data having video at a first high resolution. A vehicle detection module detects at least one vehicle within the video. A vehicle analysis module is configured to analyze the video and to extract one or more key vehicle features from the video to enable identification of a vehicle of interest (VOI) according to a set of predetermined criteria. A subsampling module creates a reduced resolution video stream in a second subsampled resolution that is lower than the first high resolution while maintaining the one or more extracted key features within the reduced resolution video stream in the first high resolution, and archives the reduced resolution video stream into a video database.

Abstract: Zoom illumination system for use with closed circuit TV cameras in applications requiring long distance illumination, such as surveillance and night vision. The system includes multiple strings of LEDs, which may have additional lenses, with each LED string capable of providing illumination for a predetermined viewing angle. The LED strings can be switched on and off to provide illumination as desired.

Abstract: An apparatus includes an image recorder configured to record video images. The apparatus also includes a display screen configured to present the video images to a user and to create notations overlying one or more of the video images based on user input. The apparatus further includes a transceiver configured to stream the video images over a wireless mesh network and to transmit data associated with the notations over the wireless mesh network. The apparatus could also include components for providing cryptographic keys to wireless nodes joining the wireless mesh network, a sensor for detecting or measuring one or more characteristics, and/or an asset tracker for transmitting or receive signals for identifying a location of the apparatus. The apparatus could further include at least one voice unit supporting bidirectional voice communications and/or a site survey unit for identifying signal strengths associated with detected wireless nodes.

Abstract: Video recording where an input image signal is received with one or more optical sensor disposed in a hands-free video recorder. The input image signal is processed into an encoded video data stream with one or more processor disposed in the hands-free video recorder. First frames of the video data stream are relayed over a wireless communication link to a cellular-enabled wireless telephony handset and presented on a display screen of the handset along with a graphical user video control interface. Video control commands are wirelessly sent to the recorder in response to receiving a first input through the video control interface. Second frames of the video data stream are directed by the video control commands to at least one of a plurality of destinations.

Abstract: An omnidirectional camera comprises two or more camera units, a camera assembly in which the two or more camera units are mounted, a heat shield cover to accommodate the camera assembly, a heat insulating member interposed between the camera assembly and the heat shield cover, a space formed between the camera assembly and the heat shield cover, a required number of slits formed in the heat shield cover and extending in up-and-down direction, and in the omnidirectional camera, the space communicates with an outside through the slit.

Abstract: Disclosed are methods and apparatus for experience sharing for emergency situations. A wearable computing device can receive an indication of an emergency situation. In response to the indication, the wearable computing device can initiate an experience sharing session with one or more emergency contacts. During the experience sharing session, the wearable computing device can capture video data, add text to the captured video data, and transmit the captured video data and added text to the one or more emergency contacts.

Abstract: Methods and systems associated with a mobile device for venue-oriented communications are presented. An example mobile communication device may include a wireless transceiver, a user interface, and control logic. The wireless transceiver may receive a plurality of digital audio streams from an access device located at a venue. The user interface may receive a selection of one of the digital audio streams from a user of the mobile communication device. The control logic includes a channel selection module that may generate an audio signal representing the selected one of the digital audio streams. The user interface may provide the generated audio signal for presentation to the user.