公开(公告)号：EP3189680A4

公开(公告)日：2017-08-23

申请号：EP14901214

申请日：2014-09-05

Applicant: PANASONIC IP CORP AMERICA

Inventor： WANG LI ,  SUZUKI HIDETOSHI ,  BASU MALLICK PRATEEK ,  WANG LILEI ,  BACHMANN JENS ,  HORI TAKAKO ,  HOSHINO MASAYUKI ,  GAO CHI ,  EINHAUS MICHAEL

IPC: H04W4/24 ,  H04L12/14 ,  H04L12/26 ,  H04M15/00 ,  H04W8/08

CPC classification number: H04W4/24 ,  H04L12/1407 ,  H04L12/1435 ,  H04L12/1467 ,  H04L43/065 ,  H04L43/0894 ,  H04M15/00 ,  H04M15/58 ,  H04M15/66 ,  H04W24/10 ,  H04W84/042

公开(公告)号：EP3113468A4

公开(公告)日：2017-03-22

申请号：EP15755416

申请日：2015-02-12

Applicant: PANASONIC IP CORP AMERICA

Inventor： HORI TAKAKO

IPC: H04M11/00 ,  H04L12/70 ,  H04L12/853 ,  H04L29/06 ,  H04W36/00 ,  H04W36/14 ,  H04W80/10

CPC classification number: H04L65/1069 ,  H04L47/2416 ,  H04L65/1006 ,  H04L65/1016 ,  H04L65/1033 ,  H04L65/403 ,  H04L65/608 ,  H04L65/80 ,  H04W36/0022

Abstract: In a connection method between speech communication terminals, a first speech communication terminal (100) states a first category including multiple speech codec modes in an SDP offer and transmits to a second communication speech terminal (200). The second communication speech terminal selects, and states in an SDP answer as a second category, multiple modes from among the first category stated in the SDP offer, and transmits to the first speech communication terminal. At least one of the SDP offer and the SDP answer states a request for a maximum bandwidth or a bandwidth of a mode of highest priority from among the speech codec modes included in the second category.

Abstract translation: 在语音通信终端之间的连接方法中，第一语音通信终端（100）在SDP提供中陈述包括多个语音编解码器模式的第一类别并且发送到第二通信语音终端（200）。 第二通信通话终端在SDP回答中选择SDP回答作为第二类别，从SDP提供中所述的第一类别中选择多个模式，并发送给第一语音通信终端。 SDP offer和SDP answer中的至少一个从第二类别中包括的语音编解码器模式中请求最高带宽或者具有最高优先级的模式的带宽。

公开(公告)号：EP3038104A4

公开(公告)日：2016-08-10

申请号：EP14837528

申请日：2014-07-07

Applicant: PANASONIC IP CORP AMERICA

Inventor： EHARA HIROYUKI ,  HORI TAKAKO

IPC: G10L19/12

CPC classification number: G10L19/12 ,  G10L19/005 ,  G10L19/038 ,  G10L19/125 ,  G10L2019/0002 ,  G10L2019/001 ,  G10L2019/0013 ,  G10L2019/0016

Abstract: In a CELP-type speech coding apparatus, switching between an orthogonal search of a fixed codebook and a non-orthogonal search is performed in a practical and effective manner. The CELP-type speech coding apparatus (100) includes a parameter quantization unit (108) that selects an adaptive codebook vector and a fixed codebook vector so as to minimize an error between a synthesized speech signal and an input speech signal. The parameter quantization unit (108) includes a fixed codebook search unit (300) that switches between the orthogonal fixed codebook search and the non-orthogonal fixed codebook search based on a correlation value between a target vector for the fixed codebook search and the adaptive codebook vector obtained as a result of a synthesis filtering process.

Abstract translation: 在CELP型语音编码装置中，以实际有效的方式进行固定码本的正交搜索与非正交搜索之间的切换。 CELP型语音编码装置（100）包括参数量化单元（108），其选择自适应码本矢量和固定码本矢量，以使合成语音信号和输入语音信号之间的误差最小化。 参数量化单元（108）包括固定码本搜索单元（300），其基于固定码本搜索的目标矢量和自适应码本之间的相关值在正交固定码本搜索和非正交固定码本搜索之间进行切换 作为合成滤波处理的结果获得的载体。