JPH01139657U - - Google Patents
Info
- Publication number
- JPH01139657U JPH01139657U JP3483088U JP3483088U JPH01139657U JP H01139657 U JPH01139657 U JP H01139657U JP 3483088 U JP3483088 U JP 3483088U JP 3483088 U JP3483088 U JP 3483088U JP H01139657 U JPH01139657 U JP H01139657U
- Authority
- JP
- Japan
- Prior art keywords
- loudspeaker
- amplifier
- excessive input
- receiving
- speaker
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 230000005236 sound signal Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は従来例を示す回路図である。
３……直流制御部、４……送受話器、６……電
子化通話回路部、６ａ……受話アンプ、７……ダ
イヤル／受話拡声アンプ制御部、８……ダイヤル
／受話拡声アンプ操作部、９……受話拡声アンプ
、１０……電源スイツチ、１１……拡声ミユート
制御スイツチ、１２……送話ミユート制御スイツ
チ、１３……切替スイツチ、１５……過大入力検
出部、１６……過大入力制御部、１７……スピー
カ。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a circuit diagram showing a conventional example. 3... DC control section, 4... Handset, 6... Computerized telephone circuit section, 6a... Receiving amplifier, 7... Dial/receiving loudspeaker amplifier control section, 8... Dial/receiving loudspeaker amplifier operating section, 9... Receiving loudspeaker amplifier, 10... Power switch, 11... Loudspeaker mute control switch, 12... Transmitting mute control switch, 13... Changeover switch, 15... Excessive input detection unit, 16... Excessive input control Section 17...Speaker.
Claims (1)
を入力とするスピーカとを備え、少なくともオン
フツク時の受話拡声操作部材の操作で前記受話拡
声アンプ及びスピーカを介して受話拡声を行う拡
声機能付電話機において、送受話器外し時に到来
するハウラ音信号を検出する過大入力検出部と、
この過大入力検出部の検出信号を受けて電子化通
話回路部の受話アンプの出力を入力とする前記受
話拡声アンプの電源を投入する過大入力制御部と
を備えてなる拡声機能付電話機。 A telephone with a loudspeaker function, comprising a loudspeaker amplifier and a speaker that receives the output of the loudspeaker amplifier as an input, and that amplifies the loudspeaker through the loudspeaker amplifier and speaker by operating a loudspeaker operation member at least during on-hook, an excessive input detection unit that detects a howler sound signal that arrives when the handset is removed;
A telephone with a loudspeaker function, comprising: an excessive input control section that receives the detection signal of the excessive input detection section and turns on the power of the receiving loudspeaker amplifier which inputs the output of the receiving amplifier of the electronic speech circuit section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3483088U JPH01139657U (en) | 1988-03-16 | 1988-03-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3483088U JPH01139657U (en) | 1988-03-16 | 1988-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01139657U true JPH01139657U (en) | 1989-09-25 |
Family
ID=31261503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3483088U Pending JPH01139657U (en) | 1988-03-16 | 1988-03-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01139657U (en) |
-
1988
- 1988-03-16 JP JP3483088U patent/JPH01139657U/ja active Pending
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