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:
Nov. 20, 2001
Filed:
Apr. 21, 1999
Yun Keun Lee, Seoul, KR;
Jong Seok Lee, Seoul, KR;
Gi Bak Kim, Seoul, KR;
Byoung Soo Lee, Kyungki-do, KR;
LG Electronics Inc., Seoul, KR;
Abstract
The present invention relates to an automated dialing method for mobile telephones. According to the method, a user enters a telephone number via the keypad of the mobile phone, followed by speaking a corresponding codeword into the handset. The voice signal is encoded using the CODEC and vocoder already on board the mobile phone. The speech is divided into frames and each frame analyzed to ascertain its primary spectral features. These features are stored in memory as associated with the numeric keypad sequence. In recognition mode, the user speaks the codeword into the handset, which is analyzed in a like fashion as in training mode. The primary spectral features are compared with those stored in memory. When a match is declared according to preset criteria, the telephone number is automatically dialed by the mobile phone. Time warping techniques may be applied in the analysis to reduce timing variations.