GB535905A - Improvements in or relating to time base circuits for television receivers - Google Patents
Improvements in or relating to time base circuits for television receiversInfo
- Publication number
- GB535905A GB535905A GB28597/39A GB2859739A GB535905A GB 535905 A GB535905 A GB 535905A GB 28597/39 A GB28597/39 A GB 28597/39A GB 2859739 A GB2859739 A GB 2859739A GB 535905 A GB535905 A GB 535905A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- television
- inductance
- relating
- tuned
- 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
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/30—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical otherwise than with constant velocity or otherwise than in pattern formed by unidirectional, straight, substantially horizontal or vertical lines
- H04N3/34—Elemental scanning area oscillated rapidly in direction transverse to main scanning direction
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K6/00—Manipulating pulses having a finite slope and not covered by one of the other main groups of this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Mechanical Optical Scanning Systems (AREA)
Abstract
535,905. Valve generating circuits ; television. STANDARD TELEPHONES & CABLES, Ltd., SHANNON, D. S. B., and CHATTERJEA, P. K. Oct. 24, 1939, No. 28597. [Classes 40 (iii) and 40 (v)] For imposing an oscillation, Fig. 7, on the charging stroke of a time-base circuit for line scanning in television, a resonant circuit tuned to a high frequency is shock-excited by the fundamental frequency. The condenser C1, charged through R2 and discharged through a gas-filled or hard valve VI, has in series therewith an inductance L, which may be tuned by a series or parallel capacitor. The inductance L may be coupled to a coil in the grid circuit, Figs. 5 and 6 (not shown). A scanning beam, controlled by such a circuit, follows a slightly zig-zag or sinusoidal course, thus compensating for any space uncovered by the light spot.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB259971X | 1939-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB535905A true GB535905A (en) | 1941-04-25 |
Family
ID=10236684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28597/39A Expired GB535905A (en) | 1939-10-24 | 1939-10-24 | Improvements in or relating to time base circuits for television receivers |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH259971A (en) |
| GB (1) | GB535905A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2628313A (en) * | 1948-10-01 | 1953-02-10 | Motorola Inc | Synchronization system |
-
1939
- 1939-10-24 GB GB28597/39A patent/GB535905A/en not_active Expired
-
1947
- 1947-03-13 CH CH259971D patent/CH259971A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2628313A (en) * | 1948-10-01 | 1953-02-10 | Motorola Inc | Synchronization system |
Also Published As
| Publication number | Publication date |
|---|---|
| CH259971A (en) | 1949-02-15 |
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