JPS62188850U - - Google Patents
Info
- Publication number
- JPS62188850U JPS62188850U JP7670486U JP7670486U JPS62188850U JP S62188850 U JPS62188850 U JP S62188850U JP 7670486 U JP7670486 U JP 7670486U JP 7670486 U JP7670486 U JP 7670486U JP S62188850 U JPS62188850 U JP S62188850U
- Authority
- JP
- Japan
- Prior art keywords
- microphone
- speaker
- acoustic coupling
- amount
- detecting
- 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
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Description
第１図は従来の拡声通話装置の構成図、第２図
は本考案による一実施例を示すブロツク図である
。
１……マイクロホン、２……スピーカ、３，４
……増幅器、５……送話信号線、６……受話信号
線、７……送話可変損失回路、８……受話可変損
失回路、９……比較回路、１０……防側音回路、
１１……線路端子、１２……受話状態出力信号線
、１３……音響結合検出回路、１４……表示部、
１５……信号線。
FIG. 1 is a block diagram of a conventional loudspeaker telephone system, and FIG. 2 is a block diagram showing an embodiment of the present invention. 1...Microphone, 2...Speaker, 3,4
... Amplifier, 5 ... Transmission signal line, 6 ... Reception signal line, 7 ... Transmission variable loss circuit, 8 ... Receiving variable loss circuit, 9 ... Comparison circuit, 10 ... Side sound prevention circuit,
11... Line terminal, 12... Receiving state output signal line, 13... Acoustic coupling detection circuit, 14... Display unit,
15...Signal line.
補正 昭６１．８．２９
図面の簡単な説明を次のように補正する。
明細書第４頁第１１，１２行目の「図面は、本
考案の……斜視図。」を次のとおり補正する。
「第１図は、本考案の電話機の実施例状態を示
す斜視図。」Amendment August 29, 1981 The brief description of the drawing is amended as follows. "The drawing is a perspective view of the present invention" on page 4, lines 11 and 12 of the specification is amended as follows. ``Figure 1 is a perspective view showing an embodiment of the telephone according to the present invention.''
Claims (1)
できるように構成し、該マイクロホンとスピーカ
とを用いて通話を行う拡声通話装置において、前
記マイクロホンとスピーカとの間の音響結合量を
検出するための検出手段と、前記音響結合量があ
らかじめ定めた値を越えたときに可視表示あるい
は可聴表示を行なう表示手段とを有することを特
徴とした拡声通話装置。 Detecting means for detecting the amount of acoustic coupling between the microphone and the speaker in a loudspeaker communication device configured such that the distance between the microphone and the speaker can be freely changed and for making a call using the microphone and the speaker. and display means for providing a visible or audible display when the amount of acoustic coupling exceeds a predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7670486U JPS62188850U (en) | 1986-05-21 | 1986-05-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7670486U JPS62188850U (en) | 1986-05-21 | 1986-05-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62188850U true JPS62188850U (en) | 1987-12-01 |
Family
ID=30924036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7670486U Pending JPS62188850U (en) | 1986-05-21 | 1986-05-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62188850U (en) |
-
1986
- 1986-05-21 JP JP7670486U patent/JPS62188850U/ja active Pending