JPH0174650U - - Google Patents
Info
- Publication number
- JPH0174650U JPH0174650U JP1987169353U JP16935387U JPH0174650U JP H0174650 U JPH0174650 U JP H0174650U JP 1987169353 U JP1987169353 U JP 1987169353U JP 16935387 U JP16935387 U JP 16935387U JP H0174650 U JPH0174650 U JP H0174650U
- Authority
- JP
- Japan
- Prior art keywords
- drive amplifier
- ringer
- telephone
- power
- microprocessor
- 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 2
Landscapes
- Mobile Radio Communication Systems (AREA)
Description
第１図はこの考案による電話機の電源制御回路
の全体構成図、第２図はこの考案による電源制御
を行うマイクロプロセツサのプログラムによる制
御動作を示すフローチヤート、第３図は従来の電
話機に使用されている電源制御回路図である。
図において、２は電話機駆動アンプ、３はリン
ガ駆動アンプ、７はシリアルデータの入力端子、
８はフツクスイツチ、９はスイツチング回路、１
０はマイクロプロセツサ、１１はスイツチング回
路を示す。なお、図中、同一符号は同一、又は相
当部分を示す。
Figure 1 is an overall configuration diagram of the power control circuit of a telephone according to this invention, Figure 2 is a flowchart showing the control operation by the program of the microprocessor that controls the power supply according to this invention, and Figure 3 is used in a conventional telephone. FIG. 2 is a power supply control circuit diagram. In the figure, 2 is a telephone drive amplifier, 3 is a ringer drive amplifier, 7 is a serial data input terminal,
8 is a switch, 9 is a switching circuit, 1
0 represents a microprocessor, and 11 represents a switching circuit. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
話器駆動アンプとリンガ駆動アンプの電源をオン
・オフするトランジスタで構成されたスイツチン
グ回路と、電話機に外部から入力されるシリアル
データと、電話機内のフツクスイツチの情報によ
つて受話器駆動アンプとリンガ駆動アンプの電源
をオン・オフする制御を行うプログラムをもつマ
イクロプロセツサを備え、フツクスイツチがオン
フツクでかつシリアルデータの情報が呼出音送出
中でないときに、受話器駆動アンプとリンガ駆動
アンプの電源をマイクロプロセツサからの制御に
より同時にオフする電話機の電源制御回路。 A switching circuit consisting of a receiver drive amplifier, a ringer drive amplifier, a transistor that turns on and off the power of the receiver drive amplifier and ringer drive amplifier, serial data input to the telephone from the outside, and information on the switch inside the telephone. The handset drive amplifier is equipped with a microprocessor that has a program that controls the handset drive amplifier and the ringer drive amplifier to turn on and off. A telephone power control circuit that simultaneously turns off the power to the ringer drive amplifier and the ringer drive amplifier under control from the microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987169353U JPH0174650U (en) | 1987-11-05 | 1987-11-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987169353U JPH0174650U (en) | 1987-11-05 | 1987-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0174650U true JPH0174650U (en) | 1989-05-19 |
Family
ID=31459332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987169353U Pending JPH0174650U (en) | 1987-11-05 | 1987-11-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0174650U (en) |
-
1987
- 1987-11-05 JP JP1987169353U patent/JPH0174650U/ja active Pending
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