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 (enExample) | 1987-05-29 | 1987-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8283187U JPH0418304Y2 (enExample) | 1987-05-29 | 1987-05-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63192787U true JPS63192787U (enExample) | 1988-12-12 |
| JPH0418304Y2 JPH0418304Y2 (enExample) | 1992-04-23 |
Family
ID=30935844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8283187U Expired JPH0418304Y2 (enExample) | 1987-05-29 | 1987-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0418304Y2 (enExample) |
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 (enExample) | 1992-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1126286A (en) | Communication systems | |
| JPH1127655A (ja) | カラーテレビドアホン装置 | |
| JPS63192787U (enExample) | ||
| JPS6069996A (ja) | テレビドアホン装置 | |
| JPS63131473U (enExample) | ||
| JPS63165976U (enExample) | ||
| JPH033019Y2 (enExample) | ||
| JPH01277090A (ja) | 静止画テレビ電話装置 | |
| JPS5946057U (ja) | モニタテレビ付インタ−ホン装置 | |
| JPH0846955A (ja) | テレビ通話装置 | |
| JPH04315351A (ja) | 交番支援システム | |
| JPS61182388A (ja) | テレビ通話装置 | |
| KR950001569B1 (ko) | 텔레비전 도어폰 | |
| JPS63181077U (enExample) | ||
| JPH02298156A (ja) | テレビドアホン装置 | |
| JP2863327B2 (ja) | ホームテレホンシステム | |
| JPH0420752U (enExample) | ||
| JPS61124173U (enExample) | ||
| JPS61170192A (ja) | インタ−ホン装置 | |
| JPS6338448U (enExample) | ||
| JP2001103181A (ja) | 遠隔制御システム | |
| JPH03121755U (enExample) | ||
| JPS6091789A (ja) | テレビ付インタ−ホン装置 | |
| JPH01146653U (enExample) | ||
| JPS58190157A (ja) | インタ−ホン |