Element for a noise cancellation device

- Umevoice, Inc.
Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view as seen from the upper front of an element for a noise cancellation device showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof; and,

FIG. 4 is a front elevational view wherein the right side, left side and rear are substantially identical.

Referenced Cited
U.S. Patent Documents
D29707 November 1898 Mulconroy
D135303 March 1943 Scher
D216802 March 1970 Kliewer
D320798 October 15, 1991 Holt
D396235 July 21, 1998 Tate et al.
2851544 September 1958 Wisdom
3231688 January 1966 Ugartechea
3632902 January 1972 Wahler
4001893 January 1977 Yamamoto
4672666 June 9, 1987 Khufus
4773091 September 20, 1988 Busche et al.
4823384 April 18, 1989 Lindsay
4850016 July 18, 1989 Groves et al.
5117461 May 26, 1992 Moseley
5182774 January 26, 1993 Bourk
5239578 August 24, 1993 Regen et al.
5268965 December 7, 1993 Badie et al.
5282245 January 25, 1994 Anderson
5329593 July 12, 1994 Lazzeroni et al.
5341420 August 23, 1994 Hollier et al.
5343523 August 30, 1994 Bartlett et al.
5394467 February 28, 1995 Kepley, III et al.
5448637 September 5, 1995 Yamaguchi et al.
5491747 February 13, 1996 Bartlett et al.
5524058 June 4, 1996 Moseley
5858848 January 12, 1999 Tate et al.
Foreign Patent Documents
0 455 160 November 1991 EPX
Other references
  • Wickstrom, Timothy K., "Microphones for Multimedia Speech Applications," Knowles Electronics, Inc., Itasca, IL.
Patent History
Patent number: D427999
Type: Grant
Filed: Jul 20, 1999
Date of Patent: Jul 11, 2000
Assignee: Umevoice, Inc. (Novato, CA)
Inventors: Joseph B. Tate (Sausalito, CA), Steven B. Wolff (Woodacre, CA), Vidya Sagar Rao (San Ramon, CA)
Primary Examiner: Brian N. Vinson
Law Firm: Burns Doane Swecker & Mathis L.L.P.
Application Number: 0/108,106
Classifications
Current U.S. Class: Telephone Equipment (D14/240); Mouthpiece Or Earpiece (24) (D14/249)
International Classification: 1403;