JPS57194656A - B board system - Google Patents
B board systemInfo
- Publication number
- JPS57194656A JPS57194656A JP7952981A JP7952981A JPS57194656A JP S57194656 A JPS57194656 A JP S57194656A JP 7952981 A JP7952981 A JP 7952981A JP 7952981 A JP7952981 A JP 7952981A JP S57194656 A JPS57194656 A JP S57194656A
- Authority
- JP
- Japan
- Prior art keywords
- incoming call
- board
- receiver
- sound
- lamp
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
- H04M3/64—Arrangements for signalling the number or class of the calling line to the operator
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Abstract
PURPOSE:To constitute a B board so that it can be used by a blind person, too, by inserting a discriminating sound corresponding to a kind of an incoming call to a receiver, converting a flickering state of a lamp on the operating surface of the B board to an audible sound, and inserting it to the receiver. CONSTITUTION:When there is an incoming call on a B board, a corresponding incoming call kind discriminating sound is selected in accordance with incoming call kind information sent from a processor LP, and is sent to a receiver R by a mixing circuit MIX. An operator answers to the incoming call by deciding a kind of a call by a kind of the discriminating sound and pushing a corresponding key. A connecting and advancing state of the incoming call is displayed by a lamp on the operating surface of the B board. A flickering state of this lamp is converted to an electric signal by a photoelectric converting part LS. Subsequently, an audible sound corresponding to this flickering is generated by controlling a photodetecting sound controlling circuit LSCNT by this electric signal, and is sent out to the receiver R from the mixing curcuit MIX.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7952981A JPS57194656A (en) | 1981-05-26 | 1981-05-26 | B board system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7952981A JPS57194656A (en) | 1981-05-26 | 1981-05-26 | B board system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57194656A true JPS57194656A (en) | 1982-11-30 |
Family
ID=13692509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7952981A Pending JPS57194656A (en) | 1981-05-26 | 1981-05-26 | B board system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57194656A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5817760A (en) * | 1981-07-24 | 1983-02-02 | Fujitsu Ltd | Incoming call noticing system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4929904A (en) * | 1972-07-20 | 1974-03-16 | ||
| JPS5317206A (en) * | 1976-07-30 | 1978-02-17 | Inventive Ind Inc | Acoustic detector for monitoring indicator lamp state of multiple channel telephone set and method of monitoring same |
| JPS551733A (en) * | 1978-06-19 | 1980-01-08 | Nec Corp | Call out system for absence transfer telephone |
-
1981
- 1981-05-26 JP JP7952981A patent/JPS57194656A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4929904A (en) * | 1972-07-20 | 1974-03-16 | ||
| JPS5317206A (en) * | 1976-07-30 | 1978-02-17 | Inventive Ind Inc | Acoustic detector for monitoring indicator lamp state of multiple channel telephone set and method of monitoring same |
| JPS551733A (en) * | 1978-06-19 | 1980-01-08 | Nec Corp | Call out system for absence transfer telephone |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5817760A (en) * | 1981-07-24 | 1983-02-02 | Fujitsu Ltd | Incoming call noticing system |
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