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Title: Audio trigger devices
Authors: Zheng, Yong-Ping
subject: Audio trigger devices;Audio signals
Year: 7-Sep-2004
Description: An audio trigger device has a number of buttons that can be depressed to create different audio signals with 5 different features. The audio signals are used to remotely control a computer running slide presentation software that has an audio channel to collect sound signals. The features of the audio signals are detected by the computer as commands for controlling the progress of the slide presentation by simulating keystrokes, mouse actions, or their combinations for the control commands of the presentation software.
Inventor name used in this publication: Yong Ping Zheng
US6788983; US6788983 B2; US6788983B2; US6,788,983; US 6,788,983 B2; 6788983; Application No. 09/778,040
Standard no: US Patent 6,788,983 B2. Washington, DC: US Patent and Trademark Office, 2004.
Appears in Collections:Health Technology and Informatics

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