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. 19, 2010
Filed:
Dec. 18, 2003
Ho-sang Sung, Daejeon, KR;
Dae-hwan Hwang, Daejeon, KR;
Dae-hee Youn, Seoul, KR;
Hong-goo Kang, Seoul, KR;
Young-cheol Park, Wonju, KR;
Ki-seung Lee, Seoul, KR;
Sung-kyo Jung, Seoul, KR;
Kyung-tae Kim, Seoul, KR;
Ho-Sang Sung, Daejeon, KR;
Dae-Hwan Hwang, Daejeon, KR;
Dae-Hee Youn, Seoul, KR;
Hong-Goo Kang, Seoul, KR;
Young-Cheol Park, Wonju, KR;
Ki-Seung Lee, Seoul, KR;
Sung-Kyo Jung, Seoul, KR;
Kyung-Tae Kim, Seoul, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
The system for transmitting and receiving a wideband speech signal includes an A/D converter for receiving an analog speech signal to convert it into a digital speech signal, a transmitter analysis filter for receiving the digital speech signal and dividing it into a baseband signal and an enhancement residual band signal, a standard baseband encoder for accepting the baseband signal and coding it using an ITU-T encoder, an additional baseband encoder for reducing standard coding distortion in the baseband signal, an enhancement residual band encoder for coding a signal obtained by removing the coded baseband signal from the original digital speech signal, and an IP network interface for multiplexing the coded standard and additional baseband signals and enhancement residual band signal.