GB856018A - Electronic apparatus utilizing a cathode ray tube - Google Patents
Electronic apparatus utilizing a cathode ray tubeInfo
- Publication number
- GB856018A GB856018A GB13550/57A GB1355057A GB856018A GB 856018 A GB856018 A GB 856018A GB 13550/57 A GB13550/57 A GB 13550/57A GB 1355057 A GB1355057 A GB 1355057A GB 856018 A GB856018 A GB 856018A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hnm
- frequency
- electrodes
- plates
- tube
- 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
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000005684 electric field Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/14—Arrangements for performing computing operations, e.g. operational amplifiers for addition or subtraction
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/02—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused
- H01J31/04—Cathode ray tubes; Electron beam tubes having one or more output electrodes which may be impacted selectively by the ray or beam, and onto, from, or over which the ray or beam may be deflected or de-focused with only one or two output electrodes with only two electrically independant groups or electrodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Particle Accelerators (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
856,018. Cathode-ray tubes. RYDBECK, O. E. H., and STENHARDT, C. M. E. April 29, 1957 [May 2, 1956], No. 13550/57. Class 39(1). In a cathode-ray tube apparatus for obtaining frequency addition or subtraction the beam is deflected in a closed preferably circular path at frequency f, and auxiliary radial deflecting fields are superposed on the closed path by electrodes Hnm and an electrode S 8 , the electrodes Hnm being divided into interleaved groups each with n electrodes a source of multiphase energy, such as a second cathode-ray tube, of frequency f 2 and m phases each phase being connected to a different group of deflection electrodes Hnm to produce the auxiliary radial deflecting fields having m phases and n polepairs, the auxiliary deflection field rotating at a frequency of f 2 /n the output frequency being nf 1 # 2 , depending on the relative directions of the beam sweep and rotating field. In Fig. 2 the target comprises a plate S 8 and a plurality of plates Hnm arranged in annular formation which are energised by a six phase supply to produce a rotating electric field which deflects the beam locally on and off the plates S 8 and Hnm. The beam thus oscillates radially, e.g. under the control of 3 volts D.C. and a superposed 3 volts A.C., so that it strikes S 8 or passes through to collector S 10 but does not strike plates Hnm at all. The multiphase waveform applied to plates Hnm is generated by an auxiliary cathode-ray tube 151 in which the beam rotates over target sectors P 1 . . . Pm equal in number to the number of phases to be generated, and is applied to the electrodes Hnm of tube 150 via amplifiers F and condensers C 21 , C 22 , while the D.C. bias is applied to plates Hnm via resistances Rm from source 55-56. A reversing switch Sw enables the direction of rotation of the beam to be reversed. w 2 /2#n = frequency of rotation of multiphase field in tube 150, and the beam rotates at a frequency w 1 /2# in main tube 150, then if w 2 /2#n nequals w 1 /2# and beam and field rotate in same direction there is anly a constant D.C. output. If they are not equal then the output has a frequency n(f 1 f 2 /n) according as to whether the directions of rotation are opposite or the same. The device of Fig. 2 can be regarded as a device for shifting the output carrier frequency nf 1 of a conventional frequency multiplier tube to nf 1 f 2 according to the position of switch Sw.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE856018X | 1956-05-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB856018A true GB856018A (en) | 1960-12-14 |
Family
ID=20362825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13550/57A Expired GB856018A (en) | 1956-05-02 | 1957-04-29 | Electronic apparatus utilizing a cathode ray tube |
Country Status (4)
Country | Link |
---|---|
US (1) | US2974295A (en) |
DE (1) | DE1092136B (en) |
FR (1) | FR1174398A (en) |
GB (1) | GB856018A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1266989B (en) * | 1963-10-30 | 1968-04-25 | Zeiss Carl Fa | Device for interpolation |
US3579013A (en) * | 1969-02-12 | 1971-05-18 | Hughes Aircraft Co | Cathode ray tube having radially directed commutator elements |
GB2196175A (en) * | 1986-10-03 | 1988-04-20 | Trialsite Ltd | Production of pulsed electron beams |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3308381A (en) * | 1961-07-03 | 1967-03-07 | Hammond Res Corp | Communication system utilizing selective sweep pattern |
US3400391A (en) * | 1963-10-30 | 1968-09-03 | Zeiss Carl | Interpolation device |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB328680A (en) * | 1930-07-22 | 1930-05-05 | John Henry Owen Harries | Improvements in and relating to the production and/or modulation of periodic electric currents |
FR809061A (en) * | 1935-11-13 | 1937-02-23 | Improvements to very high frequency current generators | |
US2185684A (en) * | 1938-11-05 | 1940-01-02 | Bell Telephone Labor Inc | Signal wave modulation |
US2290651A (en) * | 1939-09-26 | 1942-07-21 | William H Peck | Television system |
US2507170A (en) * | 1946-10-23 | 1950-05-09 | Rca Corp | Timing modulation |
US2551024A (en) * | 1946-12-20 | 1951-05-01 | Gen Electric Co Ltd | Multiplex arrangement for generating time-modulated pulses |
GB652397A (en) * | 1948-03-16 | 1951-04-25 | Gen Electric Co Ltd | Improvements in and relating to multi-channel pulse signalling systems |
US2547397A (en) * | 1948-12-29 | 1951-04-03 | Bell Telephone Labor Inc | Signal sampling and modulation |
US2533401A (en) * | 1949-09-14 | 1950-12-12 | Nat Union Radio Corp | Coincidence detector of the focused rotary electron beam kind |
NL84032C (en) * | 1953-09-26 |
-
1957
- 1957-04-29 GB GB13550/57A patent/GB856018A/en not_active Expired
- 1957-04-29 US US655788A patent/US2974295A/en not_active Expired - Lifetime
- 1957-04-30 FR FR1174398D patent/FR1174398A/en not_active Expired
- 1957-04-30 DE DER21072A patent/DE1092136B/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1266989B (en) * | 1963-10-30 | 1968-04-25 | Zeiss Carl Fa | Device for interpolation |
US3579013A (en) * | 1969-02-12 | 1971-05-18 | Hughes Aircraft Co | Cathode ray tube having radially directed commutator elements |
GB2196175A (en) * | 1986-10-03 | 1988-04-20 | Trialsite Ltd | Production of pulsed electron beams |
GB2196175B (en) * | 1986-10-03 | 1990-10-17 | Trialsite Ltd | Production of pulsed electron beams |
Also Published As
Publication number | Publication date |
---|---|
FR1174398A (en) | 1959-03-10 |
US2974295A (en) | 1961-03-07 |
DE1092136B (en) | 1960-11-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2408039A (en) | Electronic rotation direction finder | |
US2431591A (en) | Electronic computer | |
US2289319A (en) | Orientation high frequency generator | |
US2411030A (en) | Cathode-ray tube system | |
GB856018A (en) | Electronic apparatus utilizing a cathode ray tube | |
US2570858A (en) | Frequency analyzer | |
US3331985A (en) | Character generating system utilizing a cathode ray tube in which a portion of a plurality of electron beams are selectively defocussed to form the character | |
US2468100A (en) | Pulse generator | |
US2462860A (en) | Pulse translator | |
US2660669A (en) | Electron discharge device | |
US3307066A (en) | Afocal-beam probe system and apparatus | |
US2513947A (en) | Multichannel signaling system | |
US4034363A (en) | Real time data rate quantizer and analog-to-digital converter system | |
US2416200A (en) | Cathode-ray tube with spot intensity proportional to radial deflection | |
US2443958A (en) | Modulation | |
US3164718A (en) | Ion pulse generator comprising deflector means to sweep an ion beam across an apertured member | |
US2408040A (en) | Distorting direction finder receiver | |
GB625530A (en) | Improvements in or relating to phase modulating apparatus | |
US3539932A (en) | Circuits and methods for measuring the amplitude of plural signals | |
US2416199A (en) | Cathode-ray tube with spot intensity proportional to radial deflection | |
US2822493A (en) | Graphechon storage tube | |
US2939128A (en) | Plan position-indicator system | |
US2519443A (en) | Mixing or detector circuit arrangement | |
US3383547A (en) | Collimated color television display tube | |
US2747135A (en) | Apparatus for producing a rotating time base display |