GB841571A - A switching system for two signals of different phase relationship - Google Patents

A switching system for two signals of different phase relationship

Info

Publication number
GB841571A
GB841571A GB2721156A GB2721156A GB841571A GB 841571 A GB841571 A GB 841571A GB 2721156 A GB2721156 A GB 2721156A GB 2721156 A GB2721156 A GB 2721156A GB 841571 A GB841571 A GB 841571A
Authority
GB
United Kingdom
Prior art keywords
frequency
output
windings
core
signal
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
Application number
GB2721156A
Inventor
Zen-Iti Kiyasu
Saburo Muroga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to GB2721156A priority Critical patent/GB841571A/en
Publication of GB841571A publication Critical patent/GB841571A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/19—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using non-linear reactive devices in resonant circuits
    • G11C11/20—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using non-linear reactive devices in resonant circuits using parametrons

Abstract

841,571. Controlled non-linear inductors. NIPPON TELEGRAPH & TELEPHONE PUBLIC CORPORATION. Sept. 5, 1956, No. 27211/56. Class 40 (9). An A.C. signal of frequency f, the relative phase 0 or # of which represents a binary value, is gated by a core M, Fig. 1, which is normally biased to saturation by a D.C. voltage E, the core having signal input and output windings 1, 3 and a control winding 4 energized at a frequency 2f by an oscillator Os. Normally the degree of core saturation by E is such that the input signal f is decoupled from the output winding 3, but when a coincidence controlling frequency 2f is applied to winding 4 having maximum values corresponding in time position to those of the signal f, the core is partially desaturated by the flux peaks and produces an output waveform of the fundamental frequency, the phase of the output corresponding to that of the input signal. This wave may be converted into sinusoidal form by a filter, a resonance circuit tuned to frequency f or a parametrically-excited resonator. It is stated that the controlling frequency may be other even multiples of frequency f, such as 4f, 6f, 8f, or ¢f, “f, 1/6f, and that saturable barium titanate capacitors may alternatively be used. An arrangement is described, Fig. 4, in which cores M1, M2 biased by windings 41, 42, have their output windings 31, 32 connected to a parametrically-excited resonator P3. The input windings 1 1 , 1 2 are associated with parametrically-excited resonators P1, P2 having an output frequency of f and respective phases differing by 180 degrees, and a signal from one resonator or the other is coupled by a core to P3 according to the oscillation phase 0 or # of a resonator P0 which produces an output frequency 2f in response to a signal s. The core selection is determined by the interaction of this frequency 2f in windings 2 1 , 2 2 with an output from a resonator PO<SP>1</SP> which is applied to windings 2 1 <SP>1</SP>, 2 2 <SP>1</SP> and has the same frequency and a constant predetermined phase relationship.
GB2721156A 1956-09-05 1956-09-05 A switching system for two signals of different phase relationship Expired GB841571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2721156A GB841571A (en) 1956-09-05 1956-09-05 A switching system for two signals of different phase relationship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2721156A GB841571A (en) 1956-09-05 1956-09-05 A switching system for two signals of different phase relationship

Publications (1)

Publication Number Publication Date
GB841571A true GB841571A (en) 1960-07-20

Family

ID=10255969

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2721156A Expired GB841571A (en) 1956-09-05 1956-09-05 A switching system for two signals of different phase relationship

Country Status (1)

Country Link
GB (1) GB841571A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3234526A (en) * 1959-09-28 1966-02-08 Kokusai Denshin Denwa Co Ltd Analogue memory circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3234526A (en) * 1959-09-28 1966-02-08 Kokusai Denshin Denwa Co Ltd Analogue memory circuit

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