Wisconsin Alumni Research Foundation

Beijing University of Posts and Telecommunications

Anfu Zhou

Liang Liu

Xinyu Zhang

Huadong Ma

Teng Wei

Huanpu Yin

Shu Wang

Embodiments of the present application provide an acoustic sensing-based text input method, comprising: obtaining audio information corresponding to text to be input; dividing the audio information to obtain an audio segment for each letter to be recognized in the text to be input; sending to the server, a type of the text to be input, the audio segments for letters to be recognized, and arrangement of the audio segment for the letter to be recognized in the audio information; receiving input result returned by the server, and displaying, based on the input result, text information corresponding to the text to be input on the display screen of the mobile terminal. The method allows effective text input without relying on a display screen.

Acoustic sensing-based text input method

A wireless vibrometer employs an antenna array to significantly boost the signal-to-noise ratio of faint received signals twin small objects vibrating at acoustic frequencies. This technique may be used to provide an improved physiological monitor (such as a pulse detector) or for long-range eavesdropping using the emitted power from a cell phone or the like.

Wireless vibrometer with antenna array

Growing community of inventors

Beijing, China

Anfu Zhou