JPS56152451U - - Google Patents
Info
- Publication number
- JPS56152451U JPS56152451U JP5051280U JP5051280U JPS56152451U JP S56152451 U JPS56152451 U JP S56152451U JP 5051280 U JP5051280 U JP 5051280U JP 5051280 U JP5051280 U JP 5051280U JP S56152451 U JPS56152451 U JP S56152451U
- Authority
- JP
- Japan
- 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
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/02—Telephonic communication systems specially adapted for combination with other electrical systems with bell or annunciator systems
- H04M11/025—Door telephones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
- H04N7/186—Video door telephones
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5051280U JPS56152451U (en) | 1980-04-14 | 1980-04-14 | |
| DE19813113996 DE3113996A1 (en) | 1980-04-14 | 1981-04-07 | REMOTE STATION |
| GB8111612A GB2076252A (en) | 1980-04-14 | 1981-04-13 | Video interphone station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5051280U JPS56152451U (en) | 1980-04-14 | 1980-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56152451U true JPS56152451U (en) | 1981-11-14 |
Family
ID=12861012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5051280U Pending JPS56152451U (en) | 1980-04-14 | 1980-04-14 |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS56152451U (en) |
| DE (1) | DE3113996A1 (en) |
| GB (1) | GB2076252A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2123539B (en) * | 1982-07-09 | 1986-03-05 | Ashraff Allen Umer | Video recording light |
| DE3578294D1 (en) * | 1985-03-09 | 1990-07-19 | Urmet Spa | INTERCOM SYSTEM WITH IMAGE TRANSFER FOR WALL MOUNTING WITH BETTER FASTENING AND WITH SWITCHING ELEMENTS FIXED ON COMPACT PLASTIC UNDERLAYS. |
| GB9921084D0 (en) * | 1999-09-08 | 1999-11-10 | Morris Mark E | Door bell actuator and security system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3116365A (en) * | 1961-12-18 | 1963-12-31 | Bell Telephone Labor Inc | Alignment device |
| DE1295619B (en) * | 1967-03-17 | 1969-05-22 | Siemens Ag | Device for television telephony |
| GB1553525A (en) * | 1976-10-30 | 1979-09-26 | Luknar A | Security system |
-
1980
- 1980-04-14 JP JP5051280U patent/JPS56152451U/ja active Pending
-
1981
- 1981-04-07 DE DE19813113996 patent/DE3113996A1/en not_active Ceased
- 1981-04-13 GB GB8111612A patent/GB2076252A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB2076252A (en) | 1981-11-25 |
| DE3113996A1 (en) | 1982-02-11 |