公开(公告)号：US10268648B2

公开(公告)日：2019-04-23

申请号：US15747986

申请日：2016-03-15

申请人： D&M Holdings, Inc.

发明人： Tsuyoshi Kato ,  Masato Fujii

IPC分类号： G06F16/638 ,  G06F16/635 ,  G06F13/00 ,  G11B27/02 ,  G10K15/02 ,  G10K15/04 ,  G10L19/00 ,  G06K9/00 ,  H04R5/02 ,  G06F16/00

摘要： [Problem] To reduce user's workload when preparing a playlist. [Solution] A playlist preparation terminal 2 carries out face recognition processes on the image data of listeners captured for each room from a room A to a room C, and generates listener information including the atmosphere, age group, and a male-to-female ratio of a listener group made up of the listeners captured in the image data. The playlist preparation terminal 2 then prepares a playlist by selecting music data from among music data belonging to the genre information preliminarily associated with the listener information, and multicasts the playlist together with the designation data for the wireless speakers 1-1 to 1-3 from which to output music. As a result, the playlist preparation terminal 2 allows the wireless speakers 1-1 to 1-3 from which to output the music to reproduce the music data according to the playlist and output the music.

公开(公告)号：US20180302716A1

公开(公告)日：2018-10-18

申请号：US15767744

申请日：2016-09-12

申请人： D&M Holdings, Inc

发明人： Yasuo Takasu ,  Tsuyoshi Kato ,  Masato Fujii

IPC分类号： H04R3/12 ,  G06F3/16

摘要： [Problem] To provide a technology whereby power consumption can be reduced by reducing wasteful output of audio signals. [Solution] By comparison of an output volume level Vout of an output audio signal from a wireless speaker 1 with an input volume level Vin of an input audio signal to an audio controller 2, a volume level ratio Vin/Vout between the signals is monitored (S111). Moreover, when the volume level ratio Vin/Vout has dropped by a predetermined amount or more within a predetermined time period (S113, S120), a listener carrying the audio controller 2 is determined as having left a room in which the wireless speaker 1 is installed, whereby the volume value of the wireless speaker 1 is set to zero, and output of the audio signal from the wireless speaker 1 is stopped (S114, S121).

公开(公告)号：US20180225376A1

公开(公告)日：2018-08-09

申请号：US15747986

申请日：2016-03-15

申请人： D&M Holdings, Inc.

发明人： Tsuyoshi Kato ,  Masato Fujii

IPC分类号： G06F17/30 ,  H04R5/02 ,  G06K9/00

CPC分类号： G06F17/30772 ,  G06F13/00 ,  G06F17/30 ,  G06F17/30764 ,  G06K9/00302 ,  G10K15/02 ,  G10K15/04 ,  G10L19/00 ,  G11B27/02 ,  H04R5/02 ,  H04R2420/07

摘要： [Problem] To reduce user's workload when preparing a playlist. [Solution] A playlist preparation terminal 2 carries out face recognition processes on the image data of listeners captured for each room from a room A to a room C, and generates listener information including the atmosphere, age group, and a male-to-female ratio of a listener group made up of the listeners captured in the image data. The playlist preparation terminal 2 then prepares a playlist by selecting music data from among music data belonging to the genre information preliminarily associated with the listener information, and multicasts the playlist together with the designation data for the wireless speakers 1-1 to 1-3 from which to output music. As a result, the playlist preparation terminal 2 allows the wireless speakers 1-1 to 1-3 from which to output the music to reproduce the music data according to the playlist and output the music.