Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/68411
Title: Audio trigger devices
Authors: Zheng, YP 
Issue Date: 7-Sep-2004
Source: US Patent 6,788,983 B2. Washington, DC: US Patent and Trademark Office, 2004. How to cite?
Abstract: 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.
URI: http://hdl.handle.net/10397/68411
Rights: Assignee: The Hong Kong Polytechnic Univeristy.
Appears in Collections:Patent

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