JPH01124799U - - Google Patents
Info
- Publication number
- JPH01124799U JPH01124799U JP2049888U JP2049888U JPH01124799U JP H01124799 U JPH01124799 U JP H01124799U JP 2049888 U JP2049888 U JP 2049888U JP 2049888 U JP2049888 U JP 2049888U JP H01124799 U JPH01124799 U JP H01124799U
- Authority
- JP
- Japan
- Prior art keywords
- group
- microphone units
- input signal
- microphone
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の一実施例の音声会議システム
のマイクロホン・スピーカを示す斜視図、第２図
は第１図のマイクロホンの一配置例を示す上面図
、第３図は第１図のマイクロホンの他の配置例を
示す上面図、第４図は第１図のマイクロホン・ス
ピーカを使用した会議システムのブロツク図であ
る。
１……スピーカ、２……マイクロホン、３……
スピーカボツクス、２ａ……正相出力型マイクロ
ホン、２ｂ……逆相出力型マイクロホン、２１…
…マイクロホンユニツト、２２……正相増幅回路
、２３……逆相増幅回路、４……加算回路、５…
…マイク付スピーカシステム、６……送受信回路
、７……電話回線。
FIG. 1 is a perspective view showing a microphone and speaker of an audio conference system according to an embodiment of the present invention, FIG. 2 is a top view showing an example of the arrangement of the microphone in FIG. 1, and FIG. FIG. 4 is a block diagram of a conference system using the microphone and speaker of FIG. 1. 1...Speaker, 2...Microphone, 3...
Speaker box, 2a... Positive phase output type microphone, 2b... Negative phase output type microphone, 21...
...Microphone unit, 22... Positive phase amplifier circuit, 23... Negative phase amplifier circuit, 4... Addition circuit, 5...
...Speaker system with microphone, 6...Transmitting/receiving circuit, 7...Telephone line.
Claims (1)
用いて会議を行なう音声会議システムにおいて、
入力される信号と同位相で出力する第一群のマイ
クロホンユニツトと、前記入力される信号と逆位
相で出力する第二群のマイクロホンユニツトと、
前記第一群のマイクロホンユニツトからの出力信
号と前記第二群のマイクロホンユニツトからの出
力信号とを加算する加算回路とを備え、前記スピ
ーカから再生される音声が同位相で入力されるよ
うな同心円上の位置に、前記第一群のマイクロホ
ンユニツトと前記第二群のマイクロホンユニツト
とを配置したことを特徴とする音声会議システム
。 In an audio conference system that conducts conferences using multiple groups of microphone units and speakers,
a first group of microphone units that output the input signal in the same phase as the input signal; a second group of microphone units that output the input signal in the opposite phase;
an adder circuit for adding the output signals from the first group of microphone units and the output signals from the second group of microphone units, and concentric circles such that the sounds reproduced from the speakers are input in the same phase. An audio conference system characterized in that the first group of microphone units and the second group of microphone units are arranged at upper positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2049888U JPH01124799U (en) | 1988-02-17 | 1988-02-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2049888U JPH01124799U (en) | 1988-02-17 | 1988-02-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01124799U true JPH01124799U (en) | 1989-08-24 |
Family
ID=31236918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2049888U Pending JPH01124799U (en) | 1988-02-17 | 1988-02-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01124799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006025351A (en) * | 2004-07-09 | 2006-01-26 | Yamaha Corp | Acoustic apparatus and teleconferencing system |
-
1988
- 1988-02-17 JP JP2049888U patent/JPH01124799U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006025351A (en) * | 2004-07-09 | 2006-01-26 | Yamaha Corp | Acoustic apparatus and teleconferencing system |
| JP4501563B2 (en) * | 2004-07-09 | 2010-07-14 | ヤマハ株式会社 | Audio apparatus and remote conference system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5577295A (en) | Acoustic reproducing device | |
| JPH01124799U (en) | ||
| JPS5976160U (en) | Loud conference telephone equipment | |
| JPH01163000U (en) | ||
| JPS6341994U (en) | ||
| JPH02112098U (en) | ||
| JPS62121897U (en) | ||
| JPH0334400U (en) | ||
| JPS59169187U (en) | headphone audio system | |
| JPS6440991U (en) | ||
| JPS63171091U (en) | ||
| JPH0239363U (en) | ||
| JPS6423066U (en) | ||
| JPH0253700U (en) | ||
| JPH02106720U (en) | ||
| JPS611980U (en) | conference phone equipment | |
| JPS58135172U (en) | audio multiplex television receiver | |
| JPS62152598U (en) | ||
| JPS6440992U (en) | ||
| JPS593686U (en) | Howling prevention device | |
| JPS5840968U (en) | Communication device using listening device | |
| JPS63171092U (en) | ||
| JPH0375695U (en) | ||
| JPS6150366U (en) | ||
| JPS6344600U (en) |