GB292546A - Improvements in television systems - Google Patents
Improvements in television systemsInfo
- Publication number
- GB292546A GB292546A GB8503/28A GB850328A GB292546A GB 292546 A GB292546 A GB 292546A GB 8503/28 A GB8503/28 A GB 8503/28A GB 850328 A GB850328 A GB 850328A GB 292546 A GB292546 A GB 292546A
- Authority
- GB
- United Kingdom
- Prior art keywords
- scanned
- transmission
- holes
- screen
- signal current
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
292,546. Electrical Research Products, Inc., (Assignees of Ives, H. E., and Horton, J. W.). June 22, 1927, [Convention date]. Television.-To facilitate supervision of a television transmitter, part of the outgoing signal current is diverted to the control of a local receiving lamp which is scanned by the scanning disc 22 which is also employed for transmission. In the arrangement illustrated the object is scanned for the purpose of transmission by a thin lightpencil (Fig. 1, not shown) which is moved within the area 31 by holes extending from a to e in the scanning disc 22, the holes from e to f being masked by the screen 30 so far as transmission is concerned. Part of the outgoing signal current is applied to a glow lamp which is scanned by the holes from b to f, a picture being thus reconstituted in the area 121 marked off by the screen 30. The picture reproduced at 121 is not upright, but it may be erected by optical means. The areas 31, 121 may be separated by 90 or 180‹, the spiral a - - f having a corresponding overlap.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US292546XA | 1927-06-22 | 1927-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB292546A true GB292546A (en) | 1929-06-20 |
Family
ID=21848071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8503/28A Expired GB292546A (en) | 1927-06-22 | 1928-03-20 | Improvements in television systems |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE521782C (en) |
| FR (1) | FR652125A (en) |
| GB (1) | GB292546A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE765637C (en) * | 1937-08-14 | 1952-10-13 | Fernseh Gmbh | Television recording device with image catcher tube and control image generator |
| DE892911C (en) * | 1939-03-29 | 1953-10-12 | Telefunken Gmbh | TV camera with a picture tube for observing the scanned image field |
-
1928
- 1928-03-20 GB GB8503/28A patent/GB292546A/en not_active Expired
- 1928-03-29 DE DEE37205D patent/DE521782C/en not_active Expired
- 1928-04-03 FR FR652125D patent/FR652125A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR652125A (en) | 1929-03-05 |
| DE521782C (en) | 1931-03-26 |
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