Abstract: At a receiver associated with a transmitter-receiver pair, a propagating signal transmitted by a transmitter associated with the pair is received. A detected disturbance to a signal property of the propagating signal is analyzed with respect to reference data associated with the pair to detect whether a touch input has been provided. If the detected disturbance meets a criteria then the reference data associated with the pair is updated using the received propagating signal.

Abstract: A haptic feedback system is disclosed. The system includes a plurality of remote transmitters that are remote from a location of interest on a surface of the system. The system includes a signal generator that generates a signal for each of the remote transmitters. The remote transmitters propagate the signals through a medium of the surface and the signals interfere at the location of interest such that a localized disturbance is generated at the location of interest.

Abstract: A propagating signal transmitted through a propagating medium is received where a detected disturbance to a signal property of the propagating signal is analyzed to detect whether a touch input has been provided. It is determined whether the detected disturbance matches a signature and in the event it is determined that the detected disturbance matches the signature, it is determined that the detected disturbance does not correspond to the touch input.

Abstract: Controlling an audio volume is disclosed. An indicator identifying a force intensity of a touch input provided on a touch input surface is received. It is determined that the touch input is associated with an audio volume control. The audio volume is controlled based at least in part on the indicator identifying the force intensity of the touch input.

Abstract: A touch input provided by a touch input indicator device is received on a propagating medium of a receiving device. The touch input indicator device includes a transmitter that transmits a signal to the propagating medium when the touch input indicator device contacts the propagating medium. The signal encodes a digital binary data identifying the signal. The signal that has been propagated through the propagating medium is received at a receiver of the receiving device. The receiver is coupled to the propagating medium. The digital binary data is detected in the received signal. Based at least in part on the detection of the digital binary data, the touch input provided by the touch input indicator device is detected.

Abstract: A first transmitter transmits a first propagating signal to a receiver through a first region of a touch input medium corresponding. A second transmitter transmits a second propagating signal to the receiver through a second region where the second region is a subset of the first region. At least the first propagating signal and the second propagating signal are analyzed to identify, based on a determination that the first signal path was disturbed by a touch input while the second signal path was not disturbed by the touch input, the touch input on a part of the first region that is not part of the second region.

Abstract: Providing a virtual keyboard interaction is disclosed. An indicator identifying a force intensity of a touch input provided on a touch input surface is received. It is determined that the touch input is associated with a virtual keyboard. A virtual keyboard interaction is provided based at least in part on the indicator identifying the force intensity of the touch input.

Abstract: A touch input is detected. From a plurality of transmitters coupled to a propagating medium, propagating signals are emitted through the propagating medium. At a plurality of receivers coupled to the propagating medium, one or more of the propagating signals that have been disturbed by the touch input are received. The plurality of transmitters and the plurality of receivers are coupled to the propagating medium on an internal side of a device sidewall. One or more detected propagating signals that have been disturbed by the touch input are analyzed to identify the touch input on an external surface of the device sidewall.

Abstract: A touch input detector is disclosed. The touch input detector includes an acoustic transmitter for transmitting an acoustic wave across a touch input medium. The touch input detector also includes an acoustic receiver for receiving the transmitted acoustic wave, wherein the timing of the incidence of the acoustic wave on the acoustic receiver indicates at least a portion of a touch input location on a surface of the touch input medium. The touch input detector further includes an acoustic dampening material coupled to the touch input medium to dampen reflections of the transmitted acoustic wave.

Abstract: A source audio signal to be rendered by a touch input medium is received. A transmitted signal to be propagated through the touch input medium is sent. The transmitted signal includes the source audio signal and a touch location detection signal. An event is indicated, where the touch input medium has been contacted at a location on the touch input medium by a touch contact such that rendering of the source audio signal by the touch input medium is affected by the touch contact. The location of the touch contact on the touch input medium is determined by analyzing a disturbance by the touch contact on the rendered touch location detection signal. At least a portion of the source audio signal is modified based on an expected effect of the contact on the touch input medium determined using the indication of the detector.

Abstract: Controlling an audio volume is disclosed. An indicator identifying a force intensity of a touch input provided on a touch input surface is received. It is determined that the touch input is associated with an audio volume control. The audio volume is controlled based at least in part on the indicator identifying the force intensity of the touch input.

Abstract: A touch input provided by a touch input indicator device is received on a propagating medium of a receiving device. The touch input indicator device includes a transmitter that transmits a signal to the propagating medium when the touch input indicator device contacts the propagating medium. The signal encodes a digital binary data identifying the signal. The signal that has been propagated through the propagating medium is received at a receiver of the receiving device. The receiver is coupled to the propagating medium. The digital binary data is detected in the received signal. Based at least in part on the detection of the digital binary data, the touch input provided by the touch input indicator device is detected.

Abstract: Controlling an audio volume is disclosed. An indicator identifying a force intensity of a touch input provided on a touch input surface is received. It is determined that the touch input is associated with an audio volume control. The audio volume is controlled based at least in part on the indicator identifying the force intensity of the touch input.

Abstract: Providing a virtual keyboard interaction is disclosed. An indicator identifying a force intensity of a touch input provided on a touch input surface is received. It is determined that the touch input is associated with a virtual keyboard. A virtual keyboard interaction is provided based at least in part on the indicator identifying the force intensity of the touch input.

Abstract: Processing an audio signal is disclosed. The audio signal is received from a sensor coupled to a touch input medium. An indication of an event where the touch input medium has been contacted at a location on the touch input medium is received. The event has been captured as an audio signal component of the received audio signal. At least a portion of the audio signal component is reduced from the audio signal.

Abstract: A haptic feedback system is disclosed. The system includes a plurality of remote transmitters that are remote from a location of interest on a surface of the system. The system includes a signal generator that generates a signal for each of the remote transmitters. The remote transmitters propagate the signals through a medium of the surface and the signals interfere at the location of interest such that a localized disturbance is generated at the location of interest.

Abstract: A haptic feedback system is disclosed. The system includes a plurality of remote transmitters that are remote from a location of interest on a surface of the system. The system includes a signal generator that generates a signal for each of the remote transmitters. The remote transmitters propagate the signals through a medium of the surface and the signals interfere at the location of interest such that a localized disturbance is generated at the location of interest.

Abstract: A source audio signal to be rendered by a touch input medium is received. A transmitted signal to be propagated through the touch input medium is sent. The transmitted signal includes the source audio signal and a touch location detection signal. An event is indicated, where the touch input medium has been contacted at a location on the touch input medium by a touch contact such that rendering of the source audio signal by the touch input medium is affected by the touch contact. The location of the touch contact on the touch input medium is determined by analyzing a disturbance by the touch contact on the rendered touch location detection signal. At least a portion of the source audio signal is modified based on an expected effect of the contact on the touch input medium determined using the indication of the detector.

Abstract: Providing a virtual keyboard interaction is disclosed. An indicator identifying a force intensity of a touch input provided on a touch input surface is received. It is determined that the touch input is associated with a virtual keyboard. A virtual keyboard interaction is provided based at least in part on the indicator identifying the force intensity of the touch input.

Abstract: Providing a virtual keyboard interaction is disclosed. An indicator identifying a force intensity of a touch input provided on a touch input surface is received. It is determined that the touch input is associated with a virtual keyboard. A virtual keyboard interaction is provided based at least in part on the indicator identifying the force intensity of the touch input.