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:
Sep. 06, 2011
Filed:
Nov. 25, 2008
Marcelo Oliveira, San Jose, CA (US);
Alex Urquizo, Boxborough, MA (US);
Wentao Fan, Goleta, CA (US);
Marcelo Oliveira, San Jose, CA (US);
Alex Urquizo, Boxborough, MA (US);
Wentao Fan, Goleta, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In an example embodiment, there is disclosed an apparatus comprising a first communication interface, a second communication interface and tone control logic coupled to the first interface and the second interface. The tone control logic is operable to continuously transmit a guard tone on the second communication interface responsive to receiving data on the first communication interface, comprising data representative of a guard tone. The tone control logic is operable to discontinue transmitting the guard tone in response to a predefined event.