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:
Apr. 20, 2010
Filed:
Jan. 06, 2006
Andrey Sergeevich Petuhov, Moscow, RU;
Vladimir Aleksandrovich Sviridenko, Moscow, RU;
Tatiana Mikhailivna Yudina, Zelenograd, RU;
Seung-hun Jeon, Seoul, KR;
Andrey Sergeevich Petuhov, Moscow, RU;
Vladimir Aleksandrovich Sviridenko, Moscow, RU;
Tatiana Mikhailivna Yudina, Zelenograd, RU;
Seung-hun Jeon, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A method and apparatus to reconstruct high-frequency components of an input audio signal. The apparatus includes a frequency inverter to invert the frequency spectrum of the input audio signal, a band pass filter which filters out the higher frequency components of the input audio signal, a converter which shifts the frequency spectrum of the filtered signal to create a correction signal, and an adder which adds the correction signal to the input audio signal to obtain a reconstructed audio signal.