The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2011
Filed:
Apr. 27, 2006
Richard Hodges, Oakland, CA (US);
Gordon S. Simmons, Scotts Valley, CA (US);
Richard Hodges, Oakland, CA (US);
Gordon S. Simmons, Scotts Valley, CA (US);
Plantronics, Inc., Santa Cruz, CA (US);
Abstract
A speakerphone having improved echo cancellation and sound output includes at least one directional microphone having at least one axis of sensitivity and at least one zone of insensitivity, and a speaker disposed in the zone of insensitivity of the microphone to radiate sound away from the microphone and towards a reflective surface, such as a desktop or wall, against which the speakerphone is disposed. A baseplate disposed adjacent to the speaker outlet can combine with the housing of the phone to form a flaring, right-angled horn having an inlet coupled to the outlet of the speaker and an outlet terminating at a periphery of the housing. A wall-mounting embodiment incorporates a unidirectional microphone with an axis of sensitivity oriented perpendicular to the wall, and a desktop-mounting embodiment includes an array of at least two bi-directional microphones having respective axes of sensitivity oriented parallel to the desktop.