GB530378A - Improvements in and relating to synchronizing systems and methods - Google Patents
Improvements in and relating to synchronizing systems and methodsInfo
- Publication number
- GB530378A GB530378A GB16438/39A GB1643839A GB530378A GB 530378 A GB530378 A GB 530378A GB 16438/39 A GB16438/39 A GB 16438/39A GB 1643839 A GB1643839 A GB 1643839A GB 530378 A GB530378 A GB 530378A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- discharge tube
- condenser
- synchronizing
- resistance
- 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
- H04N5/04—Synchronising
- H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
- H04N5/123—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal directly commands a frequency generator
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
530,378. Thermionic valve circuits for generating synchronized oscillations. THORNTON, A. A. (Philco Radio & Television Corporation). June 5, 1939, No. 16438. [Class 40 (v)] Relates to gas-discharge tube oscillators especially intended for synchronizing television receivers. According to the invention, a resistance 8 wth a parallel condenser 9, Fig. 1, or an inductance 13 with a parallel condenser 14, Fig. 2, is inserted in the cathode circuit of the gas discharge tube 2 which periodically discharges the condenser 3 periodically recharged through the resistance 5, these inserted impedances in the cathode circuit being such as to develop a voltage which persists throughout a substantial portion of the interval between the synchronizing pulses supplied to the grid of the gas-discharge tube, whereby this gas-discharge tube is unaffected by undesired intermediate pulses.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB16438/39A GB530378A (en) | 1939-06-05 | 1939-06-05 | Improvements in and relating to synchronizing systems and methods |
US337059A US2288554A (en) | 1939-06-05 | 1940-05-24 | Synchronizing system and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB16438/39A GB530378A (en) | 1939-06-05 | 1939-06-05 | Improvements in and relating to synchronizing systems and methods |
Publications (1)
Publication Number | Publication Date |
---|---|
GB530378A true GB530378A (en) | 1940-12-11 |
Family
ID=10077323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16438/39A Expired GB530378A (en) | 1939-06-05 | 1939-06-05 | Improvements in and relating to synchronizing systems and methods |
Country Status (2)
Country | Link |
---|---|
US (1) | US2288554A (en) |
GB (1) | GB530378A (en) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2493517A (en) * | 1942-07-24 | 1950-01-03 | Jr Alexander R Applegarth | Blocking oscillator |
US2457176A (en) * | 1943-01-23 | 1948-12-28 | Standard Telephones Cables Ltd | Wave generating system |
US2807712A (en) * | 1943-09-02 | 1957-09-24 | Bell Telephone Labor Inc | Electronic systems |
US2422205A (en) * | 1943-10-05 | 1947-06-17 | Bell Telephone Labor Inc | Range indicator |
US2464259A (en) * | 1944-05-11 | 1949-03-15 | Sperry Corp | Pulse circuits |
US2533285A (en) * | 1944-07-06 | 1950-12-12 | Sager Irving | Line pulse modulator |
BE475385A (en) * | 1944-07-17 | |||
US2462078A (en) * | 1944-09-15 | 1949-02-22 | Int Standard Electric Corp | Oscillation generator |
US2417070A (en) * | 1945-01-04 | 1947-03-11 | Oliver T Francis | Electronic time indicating device |
US2459667A (en) * | 1945-01-13 | 1949-01-18 | Westinghouse Electric Corp | Control circuits |
US2443619A (en) * | 1945-02-08 | 1948-06-22 | Bell Telephone Labor Inc | Pulse generator of the shockexcited type |
US2595301A (en) * | 1945-08-10 | 1952-05-06 | Us Sec War | Line pulse modulator |
US2589851A (en) * | 1946-01-03 | 1952-03-18 | Us Sec War | Pulse length discriminator |
US2700101A (en) * | 1946-04-19 | 1955-01-18 | Wallace | Panoramic device |
US2499613A (en) * | 1946-05-16 | 1950-03-07 | Stewart Warner Corp | Electronic pulse time interval discriminator with maximum interval gate |
US2544531A (en) * | 1946-09-20 | 1951-03-06 | Hazeltine Research Inc | Relaxation type of electrical measuring system |
US2604516A (en) * | 1946-10-17 | 1952-07-22 | Bendix Aviat Corp | Electrical circuit analyzing apparatus |
CA470359A (en) * | 1947-06-24 | 1950-12-26 | Mcintyre Ferguson John | Electric circuits comprising electric discharge devices |
US2656465A (en) * | 1948-05-12 | 1953-10-20 | Zenith Radio Corp | Synchronizing system |
US2980905A (en) * | 1948-12-16 | 1961-04-18 | Joseph W Gratian | Radio ranging device |
US2549058A (en) * | 1949-01-07 | 1951-04-17 | James M Constable | Portable radiation detector |
US2704812A (en) * | 1949-05-26 | 1955-03-22 | Gen Electric | Synchronizing system |
US2832915A (en) * | 1950-02-03 | 1958-04-29 | Bendix Aviat Corp | Alarm system responsive to sonic vibrations |
US2819392A (en) * | 1952-11-22 | 1958-01-07 | Itt | Sweep wave generator |
DE1006369B (en) * | 1953-10-28 | 1957-04-18 | Salzgitter Maschinen Ag | Device for influencing the feed rate of the drill in a rock drilling machine |
US2798950A (en) * | 1955-07-05 | 1957-07-09 | Del Pro Corp | Pulse detecting network |
US2847573A (en) * | 1956-08-17 | 1958-08-12 | Ibm | Thyratron circuit |
-
1939
- 1939-06-05 GB GB16438/39A patent/GB530378A/en not_active Expired
-
1940
- 1940-05-24 US US337059A patent/US2288554A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2288554A (en) | 1942-06-30 |
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