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:
Dec. 18, 2007
Filed:
Feb. 24, 2003
Applicant:
Noriyasu Katoh, Shinagawa-ku, JP;
Inventor:
Noriyasu Katoh, Shinagawa-ku, JP;
Assignee:
Allied Telesis K.K., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/66 (2006.01);
U.S. Cl.
CPC ...
Abstract
When there is an arrival of a multicast call at a VoIP terminal on a call reception side, an SLIC sends out a ringing signal to a loudspeaker IF. The loudspeaker IF, after receiving the ringing signal, enters into a state in which voice is outputted from a loudspeaker even if a user does not respond. Compressed voice data is taken out of an IP packet received from a network and extended by a DSP to become voice data. Further, the voice data is converted by a CODEC into a voice signal, which is outputted from the loudspeaker.