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:
Jan. 24, 2006
Filed:
Jul. 09, 2001
Applicants:
Toshiyuki Tamura, Tokyo, JP;
Masahiro Sawada, Kanagawa, JP;
Inventors:
Toshiyuki Tamura, Tokyo, JP;
Masahiro Sawada, Kanagawa, JP;
Assignees:
NEC Corporation, Tokyo, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/00 (2006.01); H04B 1/38 (2006.01); H04Q 7/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A transcoder of a switching node MSC of a core network is inserted into a connection call of a transcoder-free-operation on the basis of an answer from a switching node RNC of a radio access network against an inquiry about a setting information of transcoder performed by the switching node MSC in a user layer of a Iu interface to insert a tone signal, etc., into the connection call of transcoder-free-operation. The insertion of transcoder into a connection call of a transcoder-free-operation can be executed without performing a re-initializing procedure.