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:
Feb. 27, 2007
Filed:
May. 22, 2002
Amod V. Dandawate, Basking Ridge, NJ (US);
Qian C. Xie, Long Branch, NJ (US);
Huaiyu Zeng, Red Bank, NJ (US);
Amod V. Dandawate, Basking Ridge, NJ (US);
Qian C. Xie, Long Branch, NJ (US);
Huaiyu Zeng, Red Bank, NJ (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
Techniques are provided for reducing the magnitude of echo tails in a near-end modem. The invention may use an echo tail canceller to generate a signal that cancels echo tail. One characteristic of the echo tail canceller may be determined during a time when only the near-end modem is scheduled to transmit signals. Another characteristic of the echo tail canceller may be determined at approximately the time that a body echo canceller has reached convergence and may be re-determined periodically thereafter. The near-end modem may subtract from any received signal an echo tail canceller signal generated by the echo tail canceller to cancel echo tail from the received signal.