JPS6429946U - - Google Patents
Info
- Publication number
- JPS6429946U JPS6429946U JP12528487U JP12528487U JPS6429946U JP S6429946 U JPS6429946 U JP S6429946U JP 12528487 U JP12528487 U JP 12528487U JP 12528487 U JP12528487 U JP 12528487U JP S6429946 U JPS6429946 U JP S6429946U
- Authority
- JP
- Japan
- Prior art keywords
- dial
- signal
- circuit
- signal generation
- generation circuit
- 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
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 5
Description
図示した回路は、本考案のダイヤル信号送出回
路の一実施例である。
主な図番の説明、６…通話回路、８…ダイヤル
操作釦、９…ダイヤル信号発生回路、１３…ダイ
ヤルモード切換制御回路、１４…ダイヤル切換ス
イツチ、１５…タイマー回路。
The illustrated circuit is one embodiment of the dial signal sending circuit of the present invention. Explanation of main drawing numbers, 6... Call circuit, 8... Dial operation button, 9... Dial signal generation circuit, 13... Dial mode switching control circuit, 14... Dial changeover switch, 15... Timer circuit.
Claims (1)
も発生可能なダイヤル信号発生回路と、該ダイヤ
ル信号発生回路よりダイヤルパルス信号が送出さ
れた後、一定時間以上ダイヤルパルス信号が検出
されないと出力信号を出すタイマー回路と、該タ
イマー回路の出力信号を受けることにより、前記
ダイヤル信号発生回路を多周波信号発生状態にさ
せるダイヤルモード切換制御回路とより構成され
たことを特徴とするダイヤル信号送出回路。 A dial signal generation circuit that can generate either a dial pulse signal or a multi-frequency signal, and a timer circuit that outputs an output signal if a dial pulse signal is not detected for a certain period of time after the dial pulse signal is sent out from the dial signal generation circuit. and a dial mode switching control circuit that causes the dial signal generation circuit to enter a multi-frequency signal generation state by receiving the output signal of the timer circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12528487U JPS6429946U (en) | 1987-08-18 | 1987-08-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12528487U JPS6429946U (en) | 1987-08-18 | 1987-08-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6429946U true JPS6429946U (en) | 1989-02-22 |
Family
ID=31375756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12528487U Pending JPS6429946U (en) | 1987-08-18 | 1987-08-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6429946U (en) |
-
1987
- 1987-08-18 JP JP12528487U patent/JPS6429946U/ja active Pending