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:
Oct. 29, 2013
Filed:
Oct. 13, 2009
Chang-yong Son, Seoul, KR;
Ho-chong Park, Gyeonggi-do, KR;
Yong-beom Lee, Gyeonggi-do, KR;
Woo-suk Lee, Seoul, KR;
Chang-yong Son, Seoul, KR;
Ho-chong Park, Gyeonggi-do, KR;
Yong-beom Lee, Gyeonggi-do, KR;
Woo-suk Lee, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A speech compression apparatus including: a first band-transform unit transforming a wideband speech signal to a narrowband low-band speech signal; a narrowband speech compressor compressing the narrowband low-band speech signal and outputting a result of the compressing as a low-band speech packet; a decompression unit decompressing the low-band speech packet and obtaining a decompressed wideband low-band speech signal; an error detection unit detecting an error signal that corresponds to a difference between the wideband speech signal and the decompressed wideband low-band speech signal; and a high-band speech compression unit compressing the error signal and a high-band speech signal of the wideband speech signal and outputting the result of the compressing as a high-band speech packet.