GB778883A - Improvements in and relating to non-linear circuits - Google Patents
Improvements in and relating to non-linear circuitsInfo
- Publication number
- GB778883A GB778883A GB14681/53A GB1468153A GB778883A GB 778883 A GB778883 A GB 778883A GB 14681/53 A GB14681/53 A GB 14681/53A GB 1468153 A GB1468153 A GB 1468153A GB 778883 A GB778883 A GB 778883A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency
- phase
- unit
- units
- harmonic
- 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
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
- G11C19/12—Digital stores in which the information is moved stepwise, e.g. shift registers using non-linear reactive devices in resonant circuits, e.g. parametrons; magnetic amplifiers with overcritical feedback
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
- H03K19/16—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using saturable magnetic devices
- H03K19/162—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using saturable magnetic devices using parametrons
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
- H03K19/16—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using saturable magnetic devices
- H03K19/164—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using saturable magnetic devices using ferro-resonant devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/45—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of non-linear magnetic or dielectric devices
- H03K3/47—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of non-linear magnetic or dielectric devices the devices being parametrons
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Ac-Ac Conversion (AREA)
Abstract
778,883. Electric digital-data-storage apparatus. NIPPON TELEGRAPH & TELEPHONE PUBLIC CORPORATION. May 20, 1955 [May 28, 1954], No. 14681/55. Class 106 (1). [Also in Group XXXIX] Binary information is represented by the two possible phases of a sub-harmonic frequency f which is produced from an excitation source of frequency 2f by a non-linear inductive or capacitive reactor forming part of a tuned circuit, the selection of one sub-harmonic phase being determined by a pilot signal of frequency f applied to the tuned circuit directly. The operating conditions are such that the pilot signal by itself cannot establish resonance, but if the excitation frequency 2f is applied at the same time to the non-linear reactor to produce the sub-harmonic frequency f, the tuned circuit is brought into resonance in phase with the pilot signal. Thereafter the pilot signal exercises no further control and may be terminated without affecting the sub-harmonic output. Basically the operation is due to the phenomena that an oscillation is built up in a tuned circuit if a parameter of the circuit, such as a non-linear inductance, is cyclically varied. This effect is known as the " parametric excitation of oscillations " and is discussed in the Specification with reference to the publications " Nonlinear Vibrations " by J. J. Stoker, 1950, and " Ordinary Non-Linear Differential Equations," by N. W. McLachlan, 1950. A complete unit is shown in Fig. 1a, in which a non-linear reactor M formed by two cores has windings L1, L1<SP>1</SP> connected to an excitation source O of frequency 2f and to a D.C. source B which biases the cores in the region where maximum variation of permeability occurs. Further windings L2, L2<SP>1</SP> connected in opposition are associated with a condenser C to form a tuned circuit which is connected over a switch S2 to a pilot signal source 02 of frequency f. When the excitation source 01 is connected to the reactor, the tuned circuit is brought into resonance and provides an amplified output of frequency f at terminals T2, T2<SP>1</SP> the phase of which is determined by switch S2 connecting the pilot signal to the tuned circuit either directly or over a phase-reversing transformer. Once the excitation frequency produces a sub-harmonic condition, the amplified output of selected phase persists independently of 02 or the position of S2, and the arrangement thus functions as a memory. Termination of sub-harmonic oscillation is effected by either disconnecting the excitation source or varying its frequency, or by changing the value of the bias potential. Mention is made of alternative units, Figs. 1b and 1c, which use non-linear barium titanate capacitors C1, C2 with the optional provision of a linear capacitor C. It is suggested that both components in the tuned circuit may be non-linear. The pilot signal source 02 may be a thermionic oscillator, or a similar " parametrically excited " unit, Figs. 3a to 3c. In these Figures Z denotes an impedance coupling of two units, Y an admittance coupling, and L5 a mutual inductance coupling. If unit P1 is brought into resonance of a particular phase and the coupling is resistive, then unit P2 will oscillate in the same phase when excited by frequency 2f. The arrangement constitutes a shift register since P1 can be then taken out of use by terminating its excitation frequency without affecting P2. Information may be transferred in either direction according to the sequence of connecting and interrupting the excitation frequency 2f to the individual units. Where the coupling element is reactive, a similar phase shift of exciting frequency 2f is made so that the particular phase of the voltage transferred from one unit to the other is maintained. On the other hand, a phase-inverting element such as a transformer may be used between two units to deliberately reverse the phase of the transferred voltage. Detection of the transferred binary information represented by phase for the purpose of D.C. polarity control of apparatus such as a thermionic valve circuit may be effected by the use of a ring modulator or frequency modulation detector and a reference frequency of standard phase. Input signals represented by D.C. polarity may be converted into pilot frequency signals by the use of a ring modulator or a second-harmonic type of magnetic amplifier, Fig. 4a, having a synchronized saturating frequency of f/2. Alternatively a magnetic bridge, Fig. 4b, providing a second harmonic output may be used, the output being obtained at terminals t2, t2<SP>1</SP>. Various applications in electrical computing are described as follows: Delay circuit or shifting register. The " parametrically excited " units are represented in Fig. 7a by PA-PE and are linked by coupling impedances Z. Information present at every third unit such as PA, PD is transferred through the delay circuit by repeated operations involving application of the excitation frequency to the adjacent units in the direction of transfer (PB, PE) and subsequently terminating the excitation of the original units (PA, PD). " AND " circuits. Fig. 8a illustrates an AND circuit for two variables applied from unit Px, Py to a single unit Pd. The logical AND operation is determined by a further unit Po which combines an output having a phase representing binary zero with the outputs of Px and Py. All the units produce sub-harmonic voltages of equal magnitudes. A circuit for three variables x, y and z is shown in Fig. 8b. Two reference units Po may be used, or alternatively a single Po unit may be associated with two coupling impedances. " OR " circuits. The logical OR operation may be performed by circuits identical with the AND circuits, Figs. 9a and 9b (not shown), except that the output of the Po unit or units has a phase representing binary one. " NOT " circuits. The output of a unit, Fig. 10, is reversed in phase by a transformer T. Alternatively the other output terminal t2 may be used.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP347227X | 1954-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB778883A true GB778883A (en) | 1957-07-10 |
Family
ID=12422205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14681/53A Expired GB778883A (en) | 1954-05-28 | 1955-05-20 | Improvements in and relating to non-linear circuits |
Country Status (6)
Country | Link |
---|---|
US (1) | US2948818A (en) |
CH (1) | CH347227A (en) |
DE (1) | DE1025176B (en) |
FR (1) | FR1142379A (en) |
GB (1) | GB778883A (en) |
NL (1) | NL197643A (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2950397A (en) * | 1956-09-19 | 1960-08-23 | Kokusai Electric Co Ltd | Resonant circuit element applicable for digital information processing |
US2977482A (en) * | 1958-12-24 | 1961-03-28 | Rca Corp | Microwave amplifier |
US2992398A (en) * | 1959-01-15 | 1961-07-11 | Rca Corp | Parametric oscillator phase switching means |
US2999167A (en) * | 1959-01-20 | 1961-09-05 | Rca Corp | Information handling devices |
US3000564A (en) * | 1954-04-28 | 1961-09-19 | Ibm | Electronic apparatus |
US3002108A (en) * | 1959-02-04 | 1961-09-26 | Rca Corp | Shift circuits |
US3003068A (en) * | 1959-03-18 | 1961-10-03 | Gen Dynamics Corp | Parametrically-excited resonators |
US3040262A (en) * | 1959-06-22 | 1962-06-19 | Bell Telephone Labor Inc | Light sensitive resonant circuit |
US3051844A (en) * | 1958-10-30 | 1962-08-28 | Rca Corp | Parametric oscillator circuit with frequency changing means |
US3056039A (en) * | 1958-10-07 | 1962-09-25 | Rca Corp | Multi-state switching systems |
US3065357A (en) * | 1959-05-29 | 1962-11-20 | Ibm | Constant carrier parametric oscillator logic circuit |
US3069632A (en) * | 1958-10-30 | 1962-12-18 | Rca Corp | Parametric oscillator random number generator |
US3084335A (en) * | 1958-10-16 | 1963-04-02 | Rca Corp | Readout circuit for parametric oscillator |
US3084264A (en) * | 1958-10-30 | 1963-04-02 | Rca Corp | Switching systems |
US3099801A (en) * | 1959-11-09 | 1963-07-30 | Gen Dynamics Corp | Circuitry utilizing parametrically excited harmonic oscillators |
US3109934A (en) * | 1959-06-30 | 1963-11-05 | Hughes Aircraft Co | Bi-stable circuit |
US3121844A (en) * | 1959-08-04 | 1964-02-18 | Itt | Amplifier control system |
US3123717A (en) * | 1959-07-28 | 1964-03-03 | Certificate of correction | |
US3126486A (en) * | 1959-05-29 | 1964-03-24 | Certificate of correction | |
US3134024A (en) * | 1959-05-05 | 1964-05-19 | Rca Corp | Information handling devices |
US3143662A (en) * | 1960-11-02 | 1964-08-04 | Rca Corp | Tunnel diode amplifier employing alternating current bias |
US3175164A (en) * | 1958-06-30 | 1965-03-23 | Ibm | Non-linear resonant apparatus |
US3184601A (en) * | 1958-10-16 | 1965-05-18 | Rca Corp | Switching systems |
US3234526A (en) * | 1959-09-28 | 1966-02-08 | Kokusai Denshin Denwa Co Ltd | Analogue memory circuit |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1150418A (en) * | 1956-05-03 | 1958-01-13 | Electronique & Automatisme Sa | Circuits with saturable magnetic cores |
US3044017A (en) * | 1956-12-31 | 1962-07-10 | Bell Telephone Labor Inc | Microwave carrier logic circuits |
US3075181A (en) * | 1957-02-22 | 1963-01-22 | Nippon Electric Co | Address selection system for magneticore matrix memory apparatus |
NL229873A (en) * | 1957-04-17 | 1900-01-01 | ||
US3071738A (en) * | 1958-06-18 | 1963-01-01 | Ibm | Information-handling apparatus and method |
NL244109A (en) * | 1958-10-07 | |||
US3192484A (en) * | 1959-08-17 | 1965-06-29 | Ibm | Frequency flip-flop |
US3219745A (en) * | 1959-10-24 | 1965-11-23 | Nihon Gakki Seizo Kabushiki Ka | Electronic musical instrument |
NL257639A (en) * | 1959-11-06 | |||
US3143657A (en) * | 1959-12-23 | 1964-08-04 | Ibm | Parametrons |
US3108193A (en) * | 1959-12-28 | 1963-10-22 | Ibm | Storage register |
US3206535A (en) * | 1960-05-07 | 1965-09-14 | Nihon Gakki Seizo Kabushiki Ka | Attenuating sound control system for electronic musical instruments |
US3181002A (en) * | 1960-06-20 | 1965-04-27 | Gen Electric | Parametric subharmonic oscillator utilizing a variable superconductive core inductance |
FR1272092A (en) * | 1960-08-08 | 1961-09-22 | Csf | Improvements to transformer devices for electrical computers and other uses |
US3191053A (en) * | 1960-08-19 | 1965-06-22 | Kokusai Denshin Denwa Co Ltd | Sign detecting system |
US3351771A (en) * | 1960-09-21 | 1967-11-07 | Rca Corp | Parametric subharmonic oscillator |
US3381138A (en) * | 1960-12-20 | 1968-04-30 | Kokusai Denshin Denwa Co Ltd | Parametron element using ferromagnetic thin film |
US3204020A (en) * | 1961-03-24 | 1965-08-31 | Michel Adolf | Apparatus for generating electrical oscillations |
US3239680A (en) * | 1961-06-30 | 1966-03-08 | Sperry Rand Corp | Parametron phase reference |
US3248556A (en) * | 1961-06-30 | 1966-04-26 | Ibm | Microwave phase logic circuits |
US3233230A (en) * | 1962-05-04 | 1966-02-01 | Univ Iowa State Res Found Inc | Magnetic recording device utilizing a variable reluctance head and a parametron |
US3172054A (en) * | 1962-09-04 | 1965-03-02 | Gilbert R Quilici | Electronic control mechanism |
US3398293A (en) * | 1963-02-09 | 1968-08-20 | Yaskawa Denki Seisakusho Kk | Gating control system utilizing electroparametric oscillation |
US3327129A (en) * | 1963-04-08 | 1967-06-20 | Sperry Rand Corp | Parametrically excited oscillator |
US3421017A (en) * | 1964-05-07 | 1969-01-07 | Burroughs Corp | System for the control of parametric oscillations |
WO2016050723A1 (en) * | 2014-09-30 | 2016-04-07 | E-Gen Gmbh | Device having a resonant circuit, use of such a device in a radiation field and method for operating such a device in a radiation field |
CN114078353B (en) * | 2021-11-25 | 2022-08-26 | 北京大学 | Fano resonance experimental instrument realization method based on coupling resonance circuit |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1544381A (en) * | 1925-06-30 | And carl f | ||
US1788533A (en) * | 1927-03-28 | 1931-01-13 | Bell Telephone Labor Inc | Frequency-control system |
US2822480A (en) * | 1950-07-25 | 1958-02-04 | Ncr Co | Bistable state circuit |
US2697178A (en) * | 1952-06-04 | 1954-12-14 | Ncr Co | Ferroresonant ring counter |
BE526537A (en) * | 1953-02-17 | |||
NL95586C (en) * | 1953-08-25 | |||
NL229575A (en) * | 1954-04-28 | |||
US2721947A (en) * | 1954-05-03 | 1955-10-25 | Ncr Co | Counting circuit |
-
1955
- 1955-05-16 US US508668A patent/US2948818A/en not_active Expired - Lifetime
- 1955-05-20 GB GB14681/53A patent/GB778883A/en not_active Expired
- 1955-05-27 CH CH347227D patent/CH347227A/en unknown
- 1955-05-27 FR FR1142379D patent/FR1142379A/en not_active Expired
- 1955-05-27 DE DEN10704A patent/DE1025176B/en active Pending
- 1955-05-28 NL NL197643A patent/NL197643A/en unknown
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3000564A (en) * | 1954-04-28 | 1961-09-19 | Ibm | Electronic apparatus |
US2950397A (en) * | 1956-09-19 | 1960-08-23 | Kokusai Electric Co Ltd | Resonant circuit element applicable for digital information processing |
US3175164A (en) * | 1958-06-30 | 1965-03-23 | Ibm | Non-linear resonant apparatus |
US3056039A (en) * | 1958-10-07 | 1962-09-25 | Rca Corp | Multi-state switching systems |
US3184601A (en) * | 1958-10-16 | 1965-05-18 | Rca Corp | Switching systems |
US3084335A (en) * | 1958-10-16 | 1963-04-02 | Rca Corp | Readout circuit for parametric oscillator |
US3051844A (en) * | 1958-10-30 | 1962-08-28 | Rca Corp | Parametric oscillator circuit with frequency changing means |
US3084264A (en) * | 1958-10-30 | 1963-04-02 | Rca Corp | Switching systems |
US3069632A (en) * | 1958-10-30 | 1962-12-18 | Rca Corp | Parametric oscillator random number generator |
US2977482A (en) * | 1958-12-24 | 1961-03-28 | Rca Corp | Microwave amplifier |
US2992398A (en) * | 1959-01-15 | 1961-07-11 | Rca Corp | Parametric oscillator phase switching means |
US2999167A (en) * | 1959-01-20 | 1961-09-05 | Rca Corp | Information handling devices |
US3002108A (en) * | 1959-02-04 | 1961-09-26 | Rca Corp | Shift circuits |
US3003068A (en) * | 1959-03-18 | 1961-10-03 | Gen Dynamics Corp | Parametrically-excited resonators |
US3134024A (en) * | 1959-05-05 | 1964-05-19 | Rca Corp | Information handling devices |
US3126486A (en) * | 1959-05-29 | 1964-03-24 | Certificate of correction | |
US3065357A (en) * | 1959-05-29 | 1962-11-20 | Ibm | Constant carrier parametric oscillator logic circuit |
US3040262A (en) * | 1959-06-22 | 1962-06-19 | Bell Telephone Labor Inc | Light sensitive resonant circuit |
US3109934A (en) * | 1959-06-30 | 1963-11-05 | Hughes Aircraft Co | Bi-stable circuit |
US3123717A (en) * | 1959-07-28 | 1964-03-03 | Certificate of correction | |
US3121844A (en) * | 1959-08-04 | 1964-02-18 | Itt | Amplifier control system |
US3234526A (en) * | 1959-09-28 | 1966-02-08 | Kokusai Denshin Denwa Co Ltd | Analogue memory circuit |
US3099801A (en) * | 1959-11-09 | 1963-07-30 | Gen Dynamics Corp | Circuitry utilizing parametrically excited harmonic oscillators |
US3143662A (en) * | 1960-11-02 | 1964-08-04 | Rca Corp | Tunnel diode amplifier employing alternating current bias |
Also Published As
Publication number | Publication date |
---|---|
CH347227A (en) | 1960-06-30 |
DE1025176B (en) | 1958-02-27 |
FR1142379A (en) | 1957-09-17 |
US2948818A (en) | 1960-08-09 |
NL197643A (en) | 1964-01-27 |
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