JPH0255754U - - Google Patents
Info
- Publication number
- JPH0255754U JPH0255754U JP1988135179U JP13517988U JPH0255754U JP H0255754 U JPH0255754 U JP H0255754U JP 1988135179 U JP1988135179 U JP 1988135179U JP 13517988 U JP13517988 U JP 13517988U JP H0255754 U JPH0255754 U JP H0255754U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- photocoupler
- operating state
- holding
- scanned
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Dc Digital Transmission (AREA)
- Communication Control (AREA)
- Optical Communication System (AREA)
Description
第１図はこの考案の一実施例のブロツク図、第
２図は従来例のブロツク図である。
１，４……フオトカプラ、２，５……発光ダイ
オード、３，６……フオトトランジスタ、１０〜
１７……接点、２０〜２７，５０〜５７……入力
回路、３０〜３７，６０……レジスタ、４０，７
０……制御回路。
FIG. 1 is a block diagram of one embodiment of this invention, and FIG. 2 is a block diagram of a conventional example. 1, 4...Photocoupler, 2,5...Light emitting diode, 3,6...Phototransistor, 10~
17...Contact, 20-27, 50-57...Input circuit, 30-37, 60...Register, 40,7
0...Control circuit.
Claims (1)
トカプラ手段と、該フオトカプラ手段を順次動作
状態とするスキヤン手段と、スキヤンされて動作
状態となつたフオトカプラ手段の出力信号を一時
的に保持する信号保持手段とからなる信号入力装
置。 A photocoupler means provided for each channel of an input signal, a scanning means for sequentially putting the photocoupler means into an operating state, and a signal holding means for temporarily holding an output signal of the photocoupler means that has been scanned and put into an operating state. A signal input device consisting of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988135179U JPH079468Y2 (en) | 1988-10-17 | 1988-10-17 | Signal input device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988135179U JPH079468Y2 (en) | 1988-10-17 | 1988-10-17 | Signal input device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0255754U true JPH0255754U (en) | 1990-04-23 |
| JPH079468Y2 JPH079468Y2 (en) | 1995-03-06 |
Family
ID=31394578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988135179U Expired - Lifetime JPH079468Y2 (en) | 1988-10-17 | 1988-10-17 | Signal input device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH079468Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56166657A (en) * | 1980-05-27 | 1981-12-21 | Mitsubishi Electric Corp | Data transmission system |
-
1988
- 1988-10-17 JP JP1988135179U patent/JPH079468Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56166657A (en) * | 1980-05-27 | 1981-12-21 | Mitsubishi Electric Corp | Data transmission system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH079468Y2 (en) | 1995-03-06 |