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. 15, 2009
Filed:
Dec. 12, 2003
Jaemoon Lee, Songpa-gu, KR;
Jintae Choi, Dongjak-gu, KR;
Beyongsu Kim, Youngsan-gu, KR;
Namgyu Kim, Uiwang-si, KR;
Jaemoon Lee, Songpa-gu, KR;
Jintae Choi, Dongjak-gu, KR;
Beyongsu Kim, Youngsan-gu, KR;
Namgyu Kim, Uiwang-si, KR;
SK Telecom Co., Ltd., Seoul, KR;
Abstract
The present invention relates to a method and system for switching over a call connection of a hybrid access terminal to a 1X system if a 1XEV-DO system has a problem when the hybrid access terminal requests a call connection to the 1xEV-DO system. The system in accordance with the present invention includes the hybrid access terminal, a 1X transceiver subsystem, a 1X controller, a mobile switching center, an access network transceiver subsystem, an access network controller, a packet data serving node and an IP network.