公开(公告)号：US10230411B2

公开(公告)日：2019-03-12

申请号：US15127469

申请日：2014-04-30

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Jian Han ,  Charles H Carter ,  Jesus F Corretjer ,  Meng-Ge Duan ,  Yi Gao ,  Cheah Heng Tan

IPC: H04B1/10 ,  G10L21/0364 ,  H04M9/08 ,  G10L21/02 ,  G10L25/21 ,  G10L25/78 ,  H04B1/00

Abstract: A method and apparatus for distinguishing voice signals that are played together over the same speaker employs spectral reshaping of one or more of the audio signals. The spectral reshaping shifts modifies the timber of the voice signal while not modifying the pitch of the voice signal. Additional techniques can be used to further distinguish voice signals, such as dynamic gain offset and frequency shifting. After processing one or more signals to spectrally reshape them, they can be played over the same speaker. A user hearing the resulting acoustic signal will be more able to distinguish between the multiple voice signals being played.

公开(公告)号：US09654938B2

公开(公告)日：2017-05-16

申请号：US15025582

申请日：2013-11-28

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： Xiao-Ping Tang ,  Mengge Duan ,  Jian Han ,  Liang Xu

IPC: H04W4/10 ,  H04W4/00 ,  H04W76/00 ,  H04W76/02 ,  H04W84/08 ,  H04W88/04 ,  H04B1/3822 ,  H04B1/3827 ,  H04W84/12 ,  H04W84/18

CPC classification number: H04W4/10 ,  H04B1/3822 ,  H04B1/385 ,  H04W4/80 ,  H04W76/14 ,  H04W76/45 ,  H04W84/08 ,  H04W84/12 ,  H04W84/18 ,  H04W88/04

Abstract: A method and apparatus for collaboration among two-way radio devices allows a portable two-way radio device and a mobile two-way radio device to each enter into a collaboration mode while the are paired with each other over a short range wireless radio network. While in the collaboration mode, when the user keys the portable two-way radio device audio is routed from the portable two-way radio device to the mobile two-way radio device over the short range wireless network and the mobile two-way radio device transmits the audio on behalf of the portable two-way radio device.