GB452715A - Television receiver - Google Patents
Television receiverInfo
- Publication number
- GB452715A GB452715A GB2349/35A GB234935A GB452715A GB 452715 A GB452715 A GB 452715A GB 2349/35 A GB2349/35 A GB 2349/35A GB 234935 A GB234935 A GB 234935A GB 452715 A GB452715 A GB 452715A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diode
- synchronizing
- impulses
- transformers
- jan
- 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
- H04N5/08—Separation of synchronising signals from picture signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/08—Separation of synchronising signals from picture signals
- H04N5/10—Separation of line synchronising signal from frame synchronising signal or vice versa
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Picture Signal Circuits (AREA)
- Television Systems (AREA)
- Noise Elimination (AREA)
Abstract
452,715. Television. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. Jan. 24, 1935, No. 2349. Convention date, Jan. 25, 1934. Addition to 445,428. [Classes 40 (iii) and 40 (v)] In the parent Specification, a diode 30 is used to isolate the synchronizing signals which are fed to transformers 34, 35, one of which has an iron core, to separate line synchronizing impulses from the frame impulses. According to the present invention, the secondaries of these two transformers are connected to the deflection generators over chokes 44, 45 so that the heterodyne frequency, used in a superheterodyne stage in the receiver, cannot affect the generators by entering from the chassis which is a common earth. The diode is preferably gas filled with a hot cathode. According to the Specification as open to inspection under Sect. 91, the diode 30, Fig. 2 (Cancelled), may be connected to the detector 22 over two tuned circuits 38, 39, in parallel, tuned to the line and frame synchronizing frequencies respectively. The synchronizing impulses may also be applied to a resistancecapacity combination 46, 47, Fig. 1, to be used as automatic volume control potentials. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE452715X | 1934-01-25 | ||
DE2226994X | 1934-04-28 | ||
US2631A US2173495A (en) | 1934-01-25 | 1935-01-21 | Television receiver |
US46124A US2226999A (en) | 1934-01-25 | 1935-10-22 | Television receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
GB452715A true GB452715A (en) | 1936-08-24 |
Family
ID=32074462
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2349/35A Expired GB452715A (en) | 1934-01-25 | 1935-01-24 | Television receiver |
GB12616/35A Expired GB444049A (en) | 1934-01-25 | 1935-04-27 | Amplitude filter particularly for television |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12616/35A Expired GB444049A (en) | 1934-01-25 | 1935-04-27 | Amplitude filter particularly for television |
Country Status (4)
Country | Link |
---|---|
US (2) | US2226994A (en) |
BE (2) | BE409174A (en) |
FR (2) | FR46154E (en) |
GB (2) | GB452715A (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE917130C (en) * | 1936-08-05 | 1954-08-26 | Telefunken Gmbh | Device for damping disruptive, pericodic alternating voltage superimposed surge voltages |
GB515427A (en) * | 1938-05-31 | 1939-12-05 | Charles Leslie Faudell | Improvements in or relating to television and like systems |
US2240507A (en) * | 1938-10-05 | 1941-05-06 | Hazeltine Corp | Television synchronizing and control system |
DE929973C (en) * | 1939-05-31 | 1955-07-07 | Hazeltine Corp | Television receiving device |
DE975765C (en) * | 1941-12-13 | 1962-08-23 | Philips Nv | Device for receiving signals transmitted with the aid of pulses of constant amplitude |
US2432151A (en) * | 1943-01-18 | 1947-12-09 | Hammond Laurens | Amplifying system |
US2585883A (en) * | 1946-08-10 | 1952-02-12 | Rca Corp | Combination second detector, noise limiter, and gain control circuit |
US2498839A (en) * | 1947-10-25 | 1950-02-28 | Philco Corp | Double time constant automatic volume control circuit |
US2652450A (en) * | 1948-05-29 | 1953-09-15 | Rca Corp | Sync separation and automatic gain control |
US2605350A (en) * | 1948-10-23 | 1952-07-29 | Rca Corp | Synchronizing signal separator circuit |
US2572179A (en) * | 1949-05-24 | 1951-10-23 | Philco Corp | Peak leveling circuit |
US2688712A (en) * | 1950-10-28 | 1954-09-07 | Samuel A Procter | Television receiver |
US2698358A (en) * | 1950-11-30 | 1954-12-28 | Rca Corp | Video amplifier control by combined a. g. c. and d. c. voltages |
-
0
- FR FR786901D patent/FR786901A/fr not_active Expired
- BE BE407481D patent/BE407481A/xx unknown
- BE BE409174D patent/BE409174A/xx unknown
-
1935
- 1935-01-24 GB GB2349/35A patent/GB452715A/en not_active Expired
- 1935-04-24 US US17960A patent/US2226994A/en not_active Expired - Lifetime
- 1935-04-26 FR FR46154D patent/FR46154E/en not_active Expired
- 1935-04-27 GB GB12616/35A patent/GB444049A/en not_active Expired
- 1935-10-22 US US46124A patent/US2226999A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB444049A (en) | 1936-03-12 |
FR786901A (en) | 1935-09-12 |
BE407481A (en) | |
BE409174A (en) | |
FR46154E (en) | 1936-03-05 |
US2226999A (en) | 1940-12-31 |
US2226994A (en) | 1940-12-31 |
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