Invention Grant
US5828768A Multimedia personal computer with active noise reduction and piezo
speakers
失效
具有主动降噪和压电扬声器的多媒体个人电脑
- Patent Title: Multimedia personal computer with active noise reduction and piezo speakers
- Patent Title (中): 具有主动降噪和压电扬声器的多媒体个人电脑
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Application No.: US241440Application Date: 1994-05-11
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Publication No.: US5828768APublication Date: 1998-10-27
- Inventor: Graham P. Eatwell , Michael P. McLoughlin , Stephen F. Hildebrand , William Kokonaski , James W. Hiney
- Applicant: Graham P. Eatwell , Michael P. McLoughlin , Stephen F. Hildebrand , William Kokonaski , James W. Hiney
- Applicant Address: MD Linthicum
- Assignee: Noise Cancellation Technologies, Inc.
- Current Assignee: Noise Cancellation Technologies, Inc.
- Current Assignee Address: MD Linthicum
- Main IPC: G06F1/16
- IPC: G06F1/16 ; G06F3/16 ; G10K11/178 ; H04R1/40 ; H04R3/00 ; H04R7/04 ; H04R5/02
Abstract:
This invention involves the integration of piezoelectric speaker panels and microphones into a personal computer with a sound card to form a novel multi-media computer. In addition noise cancellation electronics and algorithms are also applied to enhance performance of the voice recognition system.
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