Near ultrasonic directional data transfer for modern smartphones

Arentz, Will Archer; Bandara, Udana

doi:10.1145/2030112.2030181

Cited by 12 publications

(7 citation statements)

References 2 publications

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“…Other combinations such as audio speaker and microphone [16] can be short-range communication method for smart devices. However, combination of audio speaker and microphone increases errors in noisy environment.…”

Section: A Conceptmentioning

confidence: 99%

Vinteraction: Vibration-based information transfer for smart devices

Yonezawa

Nakazawa

Tokuda

2015

2015 Eighth International Conference on Mobile Computing and Ubiquitous Networking (ICMU)

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According to the spread of smart devices such as smartphones and smart tablets, opportunities to communicate between them will be more increased. Though we usually use WiFi and Bluetooth, it is still burden task for end-users. Many previous techniques to collaborate devices easily has been also proposed, they are not always best solution in some situations. This paper proposes a new interaction method called Vinteracion, which leverages combination of vibrator and accelerometer to send information from smart device to the other smart device. Vinteraction enables users to use touch interaction like Near Field Communication, which provides easy and intuitive way. We present an algorithm and implementation of vibrationbased communication that can be adapted to any combination of smart devices. We also present several applications which leverages Vinteraction effectively. Through an evaluation by using popular six products, we confirmed that Vinteraction is easy to use transfer method with current products with reasonable performance.

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Section: A Conceptmentioning

confidence: 99%

Vinteraction: Vibration-based information transfer for smart devices

Yonezawa

Nakazawa

Tokuda

2015

2015 Eighth International Conference on Mobile Computing and Ubiquitous Networking (ICMU)

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“…However, laptop and mobile phone hardware are optimized for working at audible frequencies (well below 20 kHz) but are capable of producing inaudible frequencies up to 22 kHz [22], [23].…”

Section: Practical Design Considerations 1) Modulationmentioning

confidence: 99%

“…At the occupant side, there is a user device capable of producing ultrasonic transmissions. For instance, a commercial audio speaker of a laptop or smartphone may be used; most speakers may be used at ultrasonic frequencies in the range of 18-22 kHz [22], [23]. We use 5 bits to encode user requests (e.g.…”

mentioning

confidence: 99%

Indoor Granular Presence Sensing and Control Messaging With an Ultrasonic Circular Array Sensor

et al. 2015

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Abstract-Providing automated granular control of lighting, along with user-driven control, results in an energy-efficient smart lighting system design while catering to personal occupant preferences. Two functional ingredients in such a system are: 1) sensing that provides granular information on occupant location and 2) a communication system to transmit control messages from a user. In this paper, we consider an ultrasonic circular array sensor that provides the dual functionality of granular occupant sensing and a communication receiver for user control transmissions. A ceiling-mounted sensor configuration with a colocated ultrasonic transmitter and array receiver is considered. To perform presence sensing, this transmitter sends periodic bursts of sinusoidal pulses that, upon reflection from the environment, are received at the array sensor. The echoes are processed to obtain estimates of range, azimuth, and elevation angles corresponding to possible occupant movements. A Kalman filter based on a near constant velocity model is used for target tracking. The resulting occupant location is used for energy-efficient lighting control. A user may in addition control lamps in its vicinity by sending messages at ultrasonic frequency, which are processed by the receiver array, and used to further adapt requested parameters of the lighting system. The proposed sensing and messaging solution is tested in an indoor office space with an eight-element receiver array sensor prototype.

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“…Ultrasonic tones have been used for data transfer [1] and proximity detection [31] as well; however, these have never been used for relative arrangement detection. We use an 18 kHz sine wave for the left speaker and 18.5 kHz for the right speaker.…”

Section: Detecting Device Arrangementmentioning

confidence: 99%

SurfaceLink

Goel

Lee

Aumi

et al. 2014

Proceedings of the SIGCHI Conference on Human Factors in Computing Systems

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We present SurfaceLink, a system where users can make natural surface gestures to control association and information transfer among a set of devices placed on a mutually shared surface (e.g., a table). SurfaceLink uses a combination of on-device accelerometers, vibration motors, speakers, and microphones (and, optionally, an off-device contact microphone for greater sensitivity) to sense gestures performed on the shared surface. In a controlled evaluation with 10 participants, SurfaceLink detected the presence of devices on the same surface with 97.7% accuracy, their relative arrangement with 89.4% accuracy, and a set of single-and multi-touch surface gestures with an average accuracy of 90.3%. A usability analysis showed that SurfaceLink has advantages over current multi-device interaction techniques in a number of situations.

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Near ultrasonic directional data transfer for modern smartphones

Cited by 12 publications

References 2 publications

Vinteraction: Vibration-based information transfer for smart devices

Vinteraction: Vibration-based information transfer for smart devices

Indoor Granular Presence Sensing and Control Messaging With an Ultrasonic Circular Array Sensor

SurfaceLink

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