JPH0114757B2 - - Google Patents
Info
- Publication number
- JPH0114757B2 JPH0114757B2 JP55012013A JP1201380A JPH0114757B2 JP H0114757 B2 JPH0114757 B2 JP H0114757B2 JP 55012013 A JP55012013 A JP 55012013A JP 1201380 A JP1201380 A JP 1201380A JP H0114757 B2 JPH0114757 B2 JP H0114757B2
- Authority
- JP
- Japan
- Prior art keywords
- line
- hold
- display
- circuit
- button
- 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.)
- Expired
Links
- 230000004397 blinking Effects 0.000 description 19
- 238000010586 diagram Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
- H04M9/003—Transmission of control signals from or to the key telephone set; signalling equipment at key telephone set, e.g. keyboard or display equipment
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1201380A JPS56110376A (en) | 1980-02-05 | 1980-02-05 | Holding state display system of key telephone set |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1201380A JPS56110376A (en) | 1980-02-05 | 1980-02-05 | Holding state display system of key telephone set |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56110376A JPS56110376A (en) | 1981-09-01 |
JPH0114757B2 true JPH0114757B2 (de) | 1989-03-14 |
Family
ID=11793702
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1201380A Granted JPS56110376A (en) | 1980-02-05 | 1980-02-05 | Holding state display system of key telephone set |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56110376A (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1188831A (en) * | 1982-12-14 | 1985-06-11 | Mitel Corporation | Telephone indicator |
JPH02262794A (ja) * | 1989-04-03 | 1990-10-25 | Canon Inc | ボタン電話装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US26722A (en) * | 1860-01-03 | James tucker | ||
JPS5242062A (en) * | 1975-09-30 | 1977-04-01 | Fujitsu Ltd | Timing circuit |
JPS5394806A (en) * | 1977-01-31 | 1978-08-19 | Nec Corp | Alarm display circuit for long-time holding of key telephone set |
JPS543503A (en) * | 1977-06-10 | 1979-01-11 | Sony Corp | Muting device of record players |
-
1980
- 1980-02-05 JP JP1201380A patent/JPS56110376A/ja active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US26722A (en) * | 1860-01-03 | James tucker | ||
JPS5242062A (en) * | 1975-09-30 | 1977-04-01 | Fujitsu Ltd | Timing circuit |
JPS5394806A (en) * | 1977-01-31 | 1978-08-19 | Nec Corp | Alarm display circuit for long-time holding of key telephone set |
JPS543503A (en) * | 1977-06-10 | 1979-01-11 | Sony Corp | Muting device of record players |
Also Published As
Publication number | Publication date |
---|---|
JPS56110376A (en) | 1981-09-01 |
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