Circuit for producing a periodic parabolic signal

Details Circuit for producing a periodic parabolic signal Circuit for producing a periodic parabolic signal

1978-04-03

1980-08-05

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307230, 307246, 307261, 328187, H03K 404

Patent

active

042163927

ABSTRACT:
A circuit for producing a periodic parabolic signal by means of squaring a sawtooth-shaped signal, for example for controlling an east-west modulator in color television receivers, a parabolic disturbance occurring during the retrace period being reduced by means of a transistor amplifier operating as an emitter follower during the trace period and as a switch during the retrace period.

REFERENCES:
patent: 3181079 (1965-04-01), Bregman
patent: 3258609 (1966-06-01), Verstraelen
patent: 3394266 (1968-07-01), Marten et al.
patent: 3684896 (1972-08-01), Bolinger

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