JPS63192787U - - Google Patents
Info
- Publication number
- JPS63192787U JPS63192787U JP8283187U JP8283187U JPS63192787U JP S63192787 U JPS63192787 U JP S63192787U JP 8283187 U JP8283187 U JP 8283187U JP 8283187 U JP8283187 U JP 8283187U JP S63192787 U JPS63192787 U JP S63192787U
- Authority
- JP
- Japan
- Prior art keywords
- control circuit
- video
- electric lock
- signal line
- detection circuit
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Closed-Circuit Television Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8283187U JPH0418304Y2 (US20080094685A1-20080424-C00004.png) | 1987-05-29 | 1987-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8283187U JPH0418304Y2 (US20080094685A1-20080424-C00004.png) | 1987-05-29 | 1987-05-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63192787U true JPS63192787U (US20080094685A1-20080424-C00004.png) | 1988-12-12 |
| JPH0418304Y2 JPH0418304Y2 (US20080094685A1-20080424-C00004.png) | 1992-04-23 |
Family
ID=30935844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8283187U Expired JPH0418304Y2 (US20080094685A1-20080424-C00004.png) | 1987-05-29 | 1987-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0418304Y2 (US20080094685A1-20080424-C00004.png) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0329584A (ja) * | 1989-06-27 | 1991-02-07 | Matsushita Electric Works Ltd | ２線式テレビインターホンシステム |
| JPH0329583A (ja) * | 1989-06-27 | 1991-02-07 | Matsushita Electric Works Ltd | ２線式ｔｖインターホンシステム |
-
1987
- 1987-05-29 JP JP8283187U patent/JPH0418304Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0329584A (ja) * | 1989-06-27 | 1991-02-07 | Matsushita Electric Works Ltd | ２線式テレビインターホンシステム |
| JPH0329583A (ja) * | 1989-06-27 | 1991-02-07 | Matsushita Electric Works Ltd | ２線式ｔｖインターホンシステム |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0418304Y2 (US20080094685A1-20080424-C00004.png) | 1992-04-23 |
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