JPH0394865U - - Google Patents
Info
- Publication number
- JPH0394865U JPH0394865U JP340490U JP340490U JPH0394865U JP H0394865 U JPH0394865 U JP H0394865U JP 340490 U JP340490 U JP 340490U JP 340490 U JP340490 U JP 340490U JP H0394865 U JPH0394865 U JP H0394865U
- Authority
- JP
- Japan
- Prior art keywords
- audio signal
- amplifier
- telephone
- loudspeaker
- amplification
- 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
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000005236 sound signal Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の原理図、第２図は本考案の第
１実施例の構成図、第３図は本考案の第２実施例
の構成図である。
図中、１……送話器、２，３……切替スイツチ
、４……メロデイ発信器、５……拡声用アンプ、
６……拡声用スピーカ、７……ＣＰＵ、８……保
留／拡声スイツチである。
FIG. 1 is a diagram showing the principle of the present invention, FIG. 2 is a block diagram of a first embodiment of the present invention, and FIG. 3 is a block diagram of a second embodiment of the present invention. In the figure, 1... Transmitter, 2, 3... Changeover switch, 4... Melody transmitter, 5... Public address amplifier,
6...Speaker for amplification, 7...CPU, 8...Hold/amplifier switch.
Claims (1)
電話用音声信号Ａ１と拡声用音声信号Ａ２のいず
れかに切替える切替スイツチ２と、 該拡声用音声信号Ａ２を増幅する拡声用アンプ
５と、 該アンプの出力で駆動される拡声用スピーカ６
とを備えてなることを特徴とする拡声機能付電話
機。[Scope of Claim for Utility Model Registration] A changeover switch 2 that switches the audio signal A converted into an electrical signal by the transmitter 1 into either the telephone audio signal A1 or the amplification audio signal A2; and the amplification audio signal A2. a loudspeaker amplifier 5 that amplifies the sound, and a loudspeaker 6 driven by the output of the amplifier.
A telephone with a public address function characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP340490U JPH0394865U (en) | 1990-01-18 | 1990-01-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP340490U JPH0394865U (en) | 1990-01-18 | 1990-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0394865U true JPH0394865U (en) | 1991-09-27 |
Family
ID=31507226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP340490U Pending JPH0394865U (en) | 1990-01-18 | 1990-01-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0394865U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009132006A (en) * | 2007-11-29 | 2009-06-18 | Lintec Corp | Adhesive memo sheet and adhesive memo pad |
| WO2012099130A1 (en) * | 2011-01-18 | 2012-07-26 | 株式会社ピーシーエム竹尾 | Adhesive note paper bundle |
-
1990
- 1990-01-18 JP JP340490U patent/JPH0394865U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009132006A (en) * | 2007-11-29 | 2009-06-18 | Lintec Corp | Adhesive memo sheet and adhesive memo pad |
| WO2012099130A1 (en) * | 2011-01-18 | 2012-07-26 | 株式会社ピーシーエム竹尾 | Adhesive note paper bundle |