JPS59134963U - Outpulse phone memory retention circuit - Google Patents
Outpulse phone memory retention circuitInfo
- Publication number
- JPS59134963U JPS59134963U JP2774283U JP2774283U JPS59134963U JP S59134963 U JPS59134963 U JP S59134963U JP 2774283 U JP2774283 U JP 2774283U JP 2774283 U JP2774283 U JP 2774283U JP S59134963 U JPS59134963 U JP S59134963U
- Authority
- JP
- Japan
- Prior art keywords
- outpulse
- power
- memory
- telephone
- supplied
- 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
Landscapes
- Static Random-Access Memory (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は本考案の一実施例を示す回路図、−第2図はフ
ックスイッチの動作状態を示すタイムチャートである。
1・・・・・・アウトパルス電話機、2・・・・・・ア
ウトパルスダイヤル、3・・・・・・電話機回路網、R
Q、R1・・・・・・抵抗、DO〜D5・・・・・・ダ
イオード、ZDQ・・・・・・定電圧グイ・オード、C
RDO・・・・・・定電流ダイオード、CO・・・・・
・コンデンサ、BAT・・・・・・tt池、ICO・・
・・・・集積回路、H3l、R32・・・・・・フック
スイッチの接点、Ll、 L2・・・・・・端子。FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is a time chart showing the operating state of the hook switch. 1... Outpulse telephone, 2... Outpulse dial, 3... Telephone circuit network, R
Q, R1...Resistance, DO~D5...Diode, ZDQ...Constant voltage guide ode, C
RDO... Constant current diode, CO...
・Capacitor, BAT...tt pond, ICO...
...Integrated circuit, H3l, R32...Hook switch contact, Ll, L2...Terminal.
Claims (1)
を行い、かつ、短縮ダイヤル発信の際指定のダイヤルボ
タン押しにより集積回路のメモリに入力されている電話
番号を自動的に送出できるアウトパルス電話機において
、前記集積回路のメモリへの電源供給をオフフック状態
では局線の電源により供給し、オンフック状態では電話
機内の電源により供給し、オフフック時は集積回路のメ
−モリへの電源供給を電池が切断された後、局線か□
ら電源供給され、オンフック時は局線の電源が切断
された孝、電池から供給することを特徴とするアウトパ
ルス電話機のメモリ保持回路。In an outpulse telephone that transmits a dial pulse using push-button dialing of the telephone and is capable of automatically transmitting a telephone number input in the memory of an integrated circuit by pressing a specified dial button when making a speed dial call, Power is supplied to the memory of the circuit by the central office line power supply in the off-hook state, from the power supply inside the phone in the on-hook state, and power is supplied to the memory of the integrated circuit in the off-hook state after the battery is disconnected. , central line?□
A memory holding circuit for an outpulse telephone characterized in that power is supplied from the battery, and when on-hook, the central office line power is cut off.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2774283U JPS59134963U (en) | 1983-02-26 | 1983-02-26 | Outpulse phone memory retention circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2774283U JPS59134963U (en) | 1983-02-26 | 1983-02-26 | Outpulse phone memory retention circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS59134963U true JPS59134963U (en) | 1984-09-08 |
Family
ID=30158623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2774283U Pending JPS59134963U (en) | 1983-02-26 | 1983-02-26 | Outpulse phone memory retention circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59134963U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61283264A (en) * | 1985-06-10 | 1986-12-13 | Tamura Electric Works Ltd | Memory dial telephone set |
-
1983
- 1983-02-26 JP JP2774283U patent/JPS59134963U/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61283264A (en) * | 1985-06-10 | 1986-12-13 | Tamura Electric Works Ltd | Memory dial telephone set |
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