公开(公告)号：US4807217A

公开(公告)日：1989-02-21

申请号：US86631

申请日：1987-07-22

申请人： Teruhisa Ide

发明人： Teruhisa Ide

IPC分类号： H04S3/02 ,  H04R3/04 ,  H04S3/00 ,  G06K9/48 ,  G06K9/50 ,  H04R5/00

CPC分类号： H04S3/00 ,  H04R3/04

摘要： The present invention provides a multi-channel stereo reproducing apparatus which can reproduce a recording medium such as an audio disc or the like in which in order that users can enjoy screen musics or the like reproduced at, for example, a concert hall and a movie theater. In the de-emphasis circuit is by-passed, whereby, when reproducing a recording medium on which a multi-channel stereo signal in which the high frequency component of the rear signal B is pre-emphasized is recorded, a high frequency component of a delayed difference signal t (L-R) supplied to the rear loudspeaker is de-emphasized so as to make the total frequency characteristic relative to the rear signal B flat, while when reproducing the recording medium on which the 2-channel stereo signal formed of only the left and right front signals L and R in which the center front signal F and the rear signal B are not encoded at all is recorded, the de-emphasis circuit is by-passed so as to prevent the delayed difference signal t (L-R) supplied to the rear loudspeaker from being attenuated to thereby, in either cases, present satisfactory stereo presence.

公开(公告)号：US4736426A

公开(公告)日：1988-04-05

申请号：US928276

申请日：1986-10-17

申请人： Tsutomu Kinoshita ,  Masahiro Ohtsu ,  Teruhisa Ide

发明人： Tsutomu Kinoshita ,  Masahiro Ohtsu ,  Teruhisa Ide

IPC分类号： H03G5/02 ,  H03G5/24 ,  H04S7/00 ,  H04S1/00

CPC分类号： H03G5/24 ,  H04S1/002

摘要： The present invention provides a graphic balancer comprising, in units of bands, level adjusting means (operational amplifiers 1L and 1R, resonators 2L and 2R, and volume controls 3L and 3R) for increasing a level of a sound signal of one of two stereo channels which are divided into a plurality of bands while synchronously decreasing a level of the other, so that localization of a sound image can be shifted in individual bands. As one embodiment of the present invention, a graphic balancer in which a graphic balancer and a graphic equalizer can be switched is disclosed.

摘要翻译： PCT No.PCT / JP86 / 00070 Sec。 371日期1986年10月17日第 102（e）日期1986年10月17日PCT提交1986年2月17日PCT公布。 第WO86 / 05059号公报 日本1986年8月28日。本发明提供了一种图形平衡器，其包括以带为单位的电平调节装置（运算放大器1L和1R，谐振器2L和2R以及音量控制3L和3R），用于增加声音的电平 两个立体声通道中的一个信号被分成多个频带同时降低另一声道的电平，使得声像的定位可以在各个频带中移位。 作为本发明的一个实施例，公开了可以切换图形平衡器和图形均衡器的图形平衡器。