JPH01167742U - - Google Patents
Info
- Publication number
- JPH01167742U JPH01167742U JP6523988U JP6523988U JPH01167742U JP H01167742 U JPH01167742 U JP H01167742U JP 6523988 U JP6523988 U JP 6523988U JP 6523988 U JP6523988 U JP 6523988U JP H01167742 U JPH01167742 U JP H01167742U
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- speaker device
- speaker
- current supply
- switching means
- 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
- 230000001105 regulatory effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は、本考案の実施例の有線放送電話シス
テム用宅内装置のスピーカ制御装置で、第２図は
第１図に示す装置の動作説明図で、第３図ａは従
来の有線放送電話システムの構成例で、第３図ｂ
は従来の有線放送電話システムの宅内装置の構成
例である。
FIG. 1 shows a speaker control device for a home device for a wired broadcast telephone system according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of the operation of the device shown in FIG. 1, and FIG. An example of the system configuration is shown in Figure 3b.
1 is an example of the configuration of an in-home device in a conventional wired broadcast telephone system.
Claims (1)
と該電話機と並列にかつ極性規制用ダイオードを
介して接続されたスピーカ装置を具備した有線放
送電話システムの宅内装置において、前記電話機
に直列接続され該電話機の作動時に流れる一方の
電流によりオン動作するスイツチング手段と、前
記極性規制用ダイオードと前記スピーカ装置間に
設けられ該スピーカ装置への電流供給手段であつ
て、前記スイツチング手段の出力を受けて該スイ
ツチング手段がオンのときおよびオン・オフの周
期が所定時間以下のとき前記スピーカ装置への電
流供給を遮断する電流供給手段とを具備したこと
を特徴とする有線放送電話システム用宅内装置の
スピーカ制御装置。 In the in-home equipment of a wired broadcasting telephone system, which is equipped with a telephone connected to a subscriber line of a multi-communal system, and a speaker device connected in parallel with the telephone through a polarity regulating diode, a switching means that is turned on by one of the currents flowing when the telephone is operated; and a means for supplying current to the speaker device provided between the polarity regulating diode and the speaker device; Speaker control for a home device for a wired broadcast telephone system, comprising: current supply means for cutting off current supply to the speaker device when the switching means is on and when the on-off cycle is less than a predetermined time. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6523988U JPH01167742U (en) | 1988-05-18 | 1988-05-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6523988U JPH01167742U (en) | 1988-05-18 | 1988-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01167742U true JPH01167742U (en) | 1989-11-27 |
Family
ID=31290677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6523988U Pending JPH01167742U (en) | 1988-05-18 | 1988-05-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01167742U (en) |
-
1988
- 1988-05-18 JP JP6523988U patent/JPH01167742U/ja active Pending