GB639981A - Improvements in or relating to electronic oscillator-detector devices for the detection of distant objects - Google Patents
Improvements in or relating to electronic oscillator-detector devices for the detection of distant objectsInfo
- Publication number
- GB639981A GB639981A GB6527/42A GB652742A GB639981A GB 639981 A GB639981 A GB 639981A GB 6527/42 A GB6527/42 A GB 6527/42A GB 652742 A GB652742 A GB 652742A GB 639981 A GB639981 A GB 639981A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oscillation
- relating
- detection
- cause
- detector devices
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
- G01S13/12—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the pulse-recurrence frequency is varied to provide a desired time relationship between the transmission of a pulse and the receipt of the echo of a preceding pulse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
- H01J25/10—Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/26—Demodulation of amplitude-modulated oscillations by means of transit-time tubes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D11/00—Super-regenerative demodulator circuits
- H03D11/02—Super-regenerative demodulator circuits for amplitude-modulated oscillations
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
- Burglar Alarm Systems (AREA)
Abstract
639,981. Locating bodies. STEVENS, A. H. (Leland Stanford Junior University, Board of Trustees of). May 13, 1942, No. 6527. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 14, 1946.] [Class 37] [Also in Groups XXXVIII, XL (a) and XL (c)] An oscillator - detector for detecting moving objects such as burglars has four resonators 76, 77, 78, 79, arranged in cascade as a velocity-modulated electron discharge tube amplifier (see Group XL (a)). The output resonator has a radiating aperture 81, and the input resonator a receiving aperture 82, and the device is mounted in the corner of a room 94 with a screen 83 shutting off the direct path between the apertures. Normally the device is non-oscillating; if regeneration is introduced for greater sensitivity, it is insufficient by itself to cause oscillation. The advent of an object introduces a feed-back path which, owing to the high amplification, is sufficient to cause the device to break into oscillation, operating alarm 96.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US218064A US2406370A (en) | 1938-07-08 | 1938-07-08 | Electronic oscillator-detector |
GB6527/42A GB639981A (en) | 1938-07-08 | 1942-05-13 | Improvements in or relating to electronic oscillator-detector devices for the detection of distant objects |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US218064A US2406370A (en) | 1938-07-08 | 1938-07-08 | Electronic oscillator-detector |
GB6527/42A GB639981A (en) | 1938-07-08 | 1942-05-13 | Improvements in or relating to electronic oscillator-detector devices for the detection of distant objects |
Publications (1)
Publication Number | Publication Date |
---|---|
GB639981A true GB639981A (en) | 1950-07-12 |
Family
ID=26240764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6527/42A Expired GB639981A (en) | 1938-07-08 | 1942-05-13 | Improvements in or relating to electronic oscillator-detector devices for the detection of distant objects |
Country Status (2)
Country | Link |
---|---|
US (1) | US2406370A (en) |
GB (1) | GB639981A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2244173A (en) * | 1990-03-09 | 1991-11-20 | Eev Ltd | Electron beam tube arrangements |
GB2244854A (en) * | 1990-03-09 | 1991-12-11 | Eev Ltd | Electron beam tube arrangements |
GB2245414A (en) * | 1990-03-28 | 1992-01-02 | Eev Ltd | Output cavity for electron beam tube |
Families Citing this family (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2596996A (en) * | 1938-07-08 | 1952-05-20 | Olive D Ross | High-frequency superregenerative apparatus |
BE481452A (en) * | 1939-06-15 | |||
NL80761C (en) * | 1939-08-24 | |||
US2551672A (en) * | 1940-10-08 | 1951-05-08 | M O Valve Co Ltd | High-frequency electrical resonator |
FR972003A (en) * | 1940-12-18 | 1951-01-24 | Csf | Improvements to speed modulated electron tubes |
US2520182A (en) * | 1940-12-24 | 1950-08-29 | Int Standard Electric Corp | Electron discharge apparatus |
US2602137A (en) * | 1941-10-23 | 1952-07-01 | Sperry Corp | High-frequency converter apparatus |
NL65811C (en) * | 1941-11-27 | |||
US2482766A (en) * | 1942-07-01 | 1949-09-27 | Sperry Corp | High-frequency modulating system |
US2500944A (en) * | 1942-07-21 | 1950-03-21 | Sperry Corp | High-frequency tube structure |
US2475652A (en) * | 1942-08-03 | 1949-07-12 | Sperry Corp | High-frequency tube structure |
US2466064A (en) * | 1943-06-28 | 1949-04-05 | Sperry Corp | Velocity modulation apparatus |
US2470802A (en) * | 1943-08-10 | 1949-05-24 | Rca Corp | Microwave device |
US2487619A (en) * | 1943-11-16 | 1949-11-08 | Rca Corp | Electrical cavity resonator |
US2444152A (en) * | 1944-07-15 | 1948-06-29 | Rca Corp | Cavity resonator circuit |
US2695373A (en) * | 1944-11-16 | 1954-11-23 | Rca Corp | Cavity resonator high-frequency apparatus |
US2472038A (en) * | 1945-01-15 | 1949-05-31 | Edward Pious | Ultra high frequency metering device and method |
US2533237A (en) * | 1945-02-12 | 1950-12-12 | Sperry Corp | Superregenerative receiver |
US2586816A (en) * | 1945-03-24 | 1952-02-26 | Sperry Corp | High-frequency modulating system |
NL69080C (en) * | 1945-08-22 | |||
FR961000A (en) * | 1945-09-22 | 1950-04-28 | ||
US2599933A (en) * | 1945-11-05 | 1952-06-10 | Us Navy | Superregenerative microwave receiver |
US2563490A (en) * | 1946-01-28 | 1951-08-07 | Cathode arrangement fob television | |
US2562927A (en) * | 1946-12-28 | 1951-08-07 | Sperry Corp | Ultra high frequency discharge tube |
US2494721A (en) * | 1947-06-18 | 1950-01-17 | Bell Telephone Labor Inc | Electron velocity variation device with noise reducing resonator |
US2667597A (en) * | 1948-06-14 | 1954-01-26 | Int Standard Electric Corp | Velocity modulated electron discharge device |
NL143190B (en) * | 1948-07-15 | Pfeiffer Ohler Eisen Theob | FOELIE MADE LID FOR A FOOD PACKAGING HOLDER. | |
US2652513A (en) * | 1948-12-11 | 1953-09-15 | Bell Telephone Labor Inc | Microwave amplifier |
GB651386A (en) * | 1948-12-14 | 1951-03-14 | Cinema Television Ltd | Improvements in or relating to cathode ray tubes |
US2635206A (en) * | 1949-01-06 | 1953-04-14 | Bell Telephone Labor Inc | Generation of microwaves |
US2782339A (en) * | 1949-01-07 | 1957-02-19 | Rca Corp | Electron beam amplifier device |
US2549499A (en) * | 1949-02-19 | 1951-04-17 | Gen Electric | Tunable cavity resonator |
US2694159A (en) * | 1949-03-22 | 1954-11-09 | Bell Telephone Labor Inc | Microwave amplifier |
US2684453A (en) * | 1949-03-26 | 1954-07-20 | Rca Corp | Growing wave electron discharge device |
FR993102A (en) * | 1949-06-02 | 1951-10-26 | Csf | Traveling wave tube with two electron beams propagating in the opposite direction |
US2730647A (en) * | 1949-06-22 | 1956-01-10 | Bell Telephone Labor Inc | Microwave amplifier |
US2585582A (en) * | 1949-07-07 | 1952-02-12 | Bell Telephone Labor Inc | Electron gun |
US2630547A (en) * | 1949-07-27 | 1953-03-03 | Rca Corp | Plural-beam growing-wave tube |
US2719936A (en) * | 1949-09-14 | 1955-10-04 | Rca Corp | Electron tubes of the traveling wave type |
US2824997A (en) * | 1949-10-14 | 1958-02-25 | Andrew V Haeff | Electron wave tube |
US2727230A (en) * | 1950-09-20 | 1955-12-13 | Westinghouse Electric Corp | Electronically tunable cavity resonator |
BE507255A (en) * | 1950-11-22 | |||
US2652512A (en) * | 1950-12-22 | 1953-09-15 | Bell Telephone Labor Inc | Electron gun |
US2757314A (en) * | 1951-01-19 | 1956-07-31 | Westinghouse Electric Corp | Resnatron |
US2702349A (en) * | 1951-02-15 | 1955-02-15 | Gen Electric | High-frequency electric discharge device and circuits associated therewith |
US2806172A (en) * | 1951-03-19 | 1957-09-10 | Rca Corp | High frequency coupling and modulating apparatus |
BE511689A (en) * | 1951-05-29 | |||
US2800606A (en) * | 1951-10-26 | 1957-07-23 | Univ Leland Stanford Junior | Space charge wave amplifiers |
FR1071367A (en) * | 1952-02-25 | 1954-08-31 | Telefunken Gmbh | Electric discharge tube for very short waves according to the traveling wave principle |
US2800603A (en) * | 1952-04-08 | 1957-07-23 | Itt | Traveling wave electron discharge devices |
NL189770B (en) * | 1953-08-15 | Celanese Corp | PROCESS FOR THE MANUFACTURE OF INDUSTRIAL POLYESTER FILAMENTS. | |
US2849649A (en) * | 1953-12-18 | 1958-08-26 | Raytheon Mfg Co | Electron discharge devices |
US2786979A (en) * | 1954-03-09 | 1957-03-26 | Goneral Prec Lab Inc | Microwave electronic switch |
NL222966A (en) * | 1954-03-25 | |||
US2902615A (en) * | 1954-04-01 | 1959-09-01 | Zenith Radio Corp | Beam internation devices |
US2913619A (en) * | 1954-04-29 | 1959-11-17 | Applied Radiation Corp | Particle accelerators |
US3011087A (en) * | 1955-02-08 | 1961-11-28 | Applied Radiation Corp | Device and method for producing electron beams |
US2892957A (en) * | 1957-05-27 | 1959-06-30 | William E Waters | Microwave detector |
US3080523A (en) * | 1958-04-07 | 1963-03-05 | Westinghouse Electric Corp | Electronically-controlled-scanning directional antenna apparatus utilizing velocity modulation of a traveling wave tube |
DE1298641B (en) * | 1961-02-10 | 1969-07-03 | Telefunken Patent | Microwave tubes for speed modulation |
FR1499442A (en) * | 1966-09-16 | 1967-10-27 | Sfim | Improvements made to Doppler effect radar devices |
GB1223845A (en) * | 1967-06-19 | 1971-03-03 | Mini Of Technology | Improvements in or relating to radio transmitter antennae |
-
1938
- 1938-07-08 US US218064A patent/US2406370A/en not_active Expired - Lifetime
-
1942
- 1942-05-13 GB GB6527/42A patent/GB639981A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2244173A (en) * | 1990-03-09 | 1991-11-20 | Eev Ltd | Electron beam tube arrangements |
GB2244854A (en) * | 1990-03-09 | 1991-12-11 | Eev Ltd | Electron beam tube arrangements |
US5239272A (en) * | 1990-03-09 | 1993-08-24 | Eev Limited | Electron beam tube arrangements having primary and secondary output cavities |
GB2244854B (en) * | 1990-03-09 | 1994-05-04 | Eev Ltd | Electron beam tube arrangements |
GB2244173B (en) * | 1990-03-09 | 1994-06-01 | Eev Ltd | Electron beam tube arrangements |
GB2245414A (en) * | 1990-03-28 | 1992-01-02 | Eev Ltd | Output cavity for electron beam tube |
GB2245414B (en) * | 1990-03-28 | 1994-03-23 | Eev Ltd | Output cavity for electron beam tube |
Also Published As
Publication number | Publication date |
---|---|
US2406370A (en) | 1946-08-27 |
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