Audio teleconference equipment with acoustic echo canceller

- NEC Corporation
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Description

FIG. 1 is a front, top and right side perspective view of an audio teleconference equipment with acoustic echo canceller, showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
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Other references
  • Brochure: Shure ST6000 Type 2, Oct., 1987. Brochure: Bota Conference 21-L System (date of publication unknown). Brochure: TIS Conference (date of publication unknown). Brochure: RYKOS VIC (date of publication unknown).
Patent History
Patent number: D307274
Type: Grant
Filed: Oct 27, 1988
Date of Patent: Apr 17, 1990
Assignee: NEC Corporation (Tokyo)
Inventors: Kiyoshi Sasaki (Tokyo), Keigo Kawasaki (Tokyo)
Primary Examiner: Horace B. Fay, Jr.
Law Firm: Sughrue, Mion, Zinn, Macpeak & Seas
Application Number: 7/263,491