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:
Aug. 21, 1979
Filed:
Jan. 03, 1978
Patrick A Vachon, Arvada, CO (US);
Storage Technology Corporation, Louisville, CO (US);
Abstract
Disclosed is an echo suppressor circuit which provides a variable loss in a speaker's transmit path, which loss is a function of the relative speaker volumes. The loss provided in the path of a particular speaker is relative to the volume of the speech emanating from each speaker. In one embodiment, the amplitude of the incoming signal is reduced by an amount which is a function of the ratio of the amplitude of the incoming signal to the amplitude of the outgoing signal. Because loss is introduced into a distant speaker's transmit path rather than into his return path, it is possible for a near speaker to break into a conversation before the distant speaker has concluded. Further, since the loss provided is a function of the relative volumes of both speakers with respect to one another, the total loss introduced into the system is minimized.