JPS5482904A - Call out circuit - Google Patents
Call out circuitInfo
- Publication number
- JPS5482904A JPS5482904A JP15125677A JP15125677A JPS5482904A JP S5482904 A JPS5482904 A JP S5482904A JP 15125677 A JP15125677 A JP 15125677A JP 15125677 A JP15125677 A JP 15125677A JP S5482904 A JPS5482904 A JP S5482904A
- Authority
- JP
- Japan
- Prior art keywords
- call out
- out circuit
- oscillator
- transistor
- turning
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15125677A JPS5482904A (en) | 1977-12-15 | 1977-12-15 | Call out circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15125677A JPS5482904A (en) | 1977-12-15 | 1977-12-15 | Call out circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5482904A true JPS5482904A (en) | 1979-07-02 |
JPS5631784B2 JPS5631784B2 (ja) | 1981-07-23 |
Family
ID=15514678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15125677A Granted JPS5482904A (en) | 1977-12-15 | 1977-12-15 | Call out circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5482904A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5843064U (ja) * | 1981-09-16 | 1983-03-23 | 明星電気株式会社 | 音源回路 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50127310U (ja) * | 1974-04-04 | 1975-10-18 |
-
1977
- 1977-12-15 JP JP15125677A patent/JPS5482904A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50127310U (ja) * | 1974-04-04 | 1975-10-18 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5843064U (ja) * | 1981-09-16 | 1983-03-23 | 明星電気株式会社 | 音源回路 |
Also Published As
Publication number | Publication date |
---|---|
JPS5631784B2 (ja) | 1981-07-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5482904A (en) | Call out circuit | |
JPS54161868A (en) | Automatic sound volume controller | |
JPS55106380A (en) | Watch with radio | |
JPS55114063A (en) | Telephone set system | |
JPS5445525A (en) | Selection circuit for white balance | |
JPS5494230A (en) | Input unit | |
JPS53105962A (en) | Voltage amplifier | |
JPS5474601A (en) | Hysteresis circuit of current control | |
JPS56160118A (en) | Afc and agc circuit in common | |
JPS5397756A (en) | Amplifier circuit | |
JPS544309A (en) | Driving circuit of direct current motor | |
JPS5578642A (en) | Squelch circuit | |
JPS5579725A (en) | Alarm device for automobile | |
JPS5549044A (en) | Sound muting control circuit | |
JPS53107650A (en) | Switching regulator having two power source output | |
JPS56107638A (en) | Current switch circuit | |
JPS5576718A (en) | Automotive alarm device | |
JPS53149715A (en) | Correcting device for contour | |
JPS6436320A (en) | Information input device | |
JPS5676686A (en) | Horizontal oscillation circuit | |
JPS5490906A (en) | Telephone set | |
JPS54916A (en) | Frequency conversion circuit | |
JPS5375747A (en) | Amplifying circuit | |
JPS5773537A (en) | Cordless telephone set | |
GB906872A (en) | An improved alarm clock radio |