公开(公告)号：US10038947B2

公开(公告)日：2018-07-31

申请号：US14523146

申请日：2014-10-24

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Jong-bae Kim ,  Dae-joung Kim ,  Dong-kyu Park ,  Sung-ha Son ,  Gyeong-tae Lee ,  Joo-yeon Lee ,  Jong-in Jo ,  Sung-joo Kim ,  Dong-hyun Jung ,  Seon-ho Hwang ,  Dae-kyung Ahn ,  Sang-sung Woo ,  Sang-min Hyun

IPC分类号： H04R25/00 ,  H04R1/02 ,  H04R1/26 ,  H04R1/40 ,  H04R5/02 ,  H04R3/12 ,  H04R7/04 ,  H04S7/00

CPC分类号： H04R1/028 ,  H04R1/26 ,  H04R1/403 ,  H04R3/12 ,  H04R5/02 ,  H04R7/045 ,  H04R2499/11 ,  H04R2499/15 ,  H04S7/303

摘要： An apparatus including a first speaker configured to output higher-frequency sound from among sound of a channel via at least one slit, and a second speaker configured to output lower-frequency sound from among the sound of the channel via at least one other slit. The at least one slit may have a thickness that is less than a wavelength of sound emitted.

公开(公告)号：US10410645B2

公开(公告)日：2019-09-10

申请号：US15123897

申请日：2015-03-03

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Ki-hyun Choo ,  Eun-mi Oh ,  Seon-ho Hwang

IPC分类号： G10L19/12 ,  G10L21/038 ,  G10L19/18 ,  G10L19/012 ,  G10L19/16 ,  G10L19/08

摘要： Disclosed are a method and an apparatus for high frequency decoding for bandwidth extension. The method for high frequency decoding for bandwidth extension comprises the steps of: decoding an excitation class; transforming a decoded low frequency spectrum on the basis of the excitation class; and generating a high frequency excitation spectrum on the basis of the transformed low frequency spectrum. The method and apparatus for high frequency decoding for bandwidth extension according to an embodiment can transform a restored low frequency spectrum and generate a high frequency excitation spectrum, thereby improving the restored sound quality without an excessive increase in complexity.

公开(公告)号：US10170127B2

公开(公告)日：2019-01-01

申请号：US15324922

申请日：2015-07-07

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Kyung-hun Jung ,  Eun-mi Oh ,  Jong-hoon Jeong ,  Seon-ho Hwang

IPC分类号： G10L19/022 ,  H04L29/06 ,  G10L19/005

摘要： A method and apparatus for transmitting multimedia data are provided. A first device, which provides an audio signal to a second device, includes: a control unit that divides an audio signal input to the first device into a plurality of audio frames, compares a current audio frame among the plurality of audio frames with the at least one previous audio frame prestored in the memory of the first device, and selects one of the prestored previous audio frames based on similarity of the prestored previous audio frame and the current audio frame; and a communication unit that transmits an identification value of the selected previous audio frame to the second device.

公开(公告)号：US10803878B2

公开(公告)日：2020-10-13

申请号：US16538427

申请日：2019-08-12

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Ki-hyun Choo ,  Eun-mi Oh ,  Seon-ho Hwang

IPC分类号： G10L19/12 ,  G10L21/038 ,  G10L19/18 ,  G10L19/012 ,  G10L19/16 ,  G10L19/08

摘要： Disclosed are a method and an apparatus for high frequency decoding for bandwidth extension. The method for high frequency decoding for bandwidth extension comprises the steps of: decoding an excitation class; transforming a decoded low frequency spectrum on the basis of the excitation class; and generating a high frequency excitation spectrum on the basis of the transformed low frequency spectrum. The method and apparatus for high frequency decoding for bandwidth extension according to an embodiment can transform a restored low frequency spectrum and generate a high frequency excitation spectrum, thereby improving the restored sound quality without an excessive increase in complexity.

公开(公告)号：US11676614B2

公开(公告)日：2023-06-13

申请号：US17030104

申请日：2020-09-23

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Ki-hyun Choo ,  Eun-mi Oh ,  Seon-ho Hwang

IPC分类号： G10L19/12 ,  G10L21/038 ,  G10L19/18 ,  G10L19/012 ,  G10L19/16 ,  G10L19/08

CPC分类号： G10L19/12 ,  G10L19/012 ,  G10L19/167 ,  G10L19/18 ,  G10L21/038 ,  G10L19/08

摘要： Disclosed are a method and an apparatus for high frequency decoding for bandwidth extension. The method for high frequency decoding for bandwidth extension comprises the steps of: decoding an excitation class; transforming a decoded low frequency spectrum on the basis of the excitation class; and generating a high frequency excitation spectrum on the basis of the transformed low frequency spectrum. The method and apparatus for high frequency decoding for bandwidth extension according to an embodiment can transform a restored low frequency spectrum and generate a high frequency excitation spectrum, thereby improving the restored sound quality without an excessive increase in complexity.

公开(公告)号：US10530571B2

公开(公告)日：2020-01-07

申请号：US15104629

申请日：2014-12-15

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Han-gil Moon ,  Hyun-wook Kim ,  Seon-ho Hwang

IPC分类号： H04L9/06 ,  H04W12/00 ,  H04L9/08 ,  H04L29/06

摘要： A secure communication apparatus may include a security module for generating an encrypted bitstream by encrypting at least a portion of data forming a bitstream and inserting at least a portion of key information used in the encryption into the bitstream and for decrypting encrypted data by acquiring at least a portion of key information for the decryption from a received encrypted bitstream, and a communication module for transmitting and receiving the encrypted bitstream.