Television sweep system with semiconductor switch and energy storage device for expedting its activation

Claim 1

A HORIZONTAL SCANNING SYSTEM FOR AN IMAGE-REPRODUCING DEVICE IN A TELEVISION RECEIRVER, COMPRISING: A BISTABLE SEMICONDUCTOR SWITCHING DEVICE HAVING FIRST, SECOND AND CONTROL TERMINALS AND RESPONSIVE TO THE TRANSLATION OF TURN-ON CURRENT IN A PREDETERMINED DIRECTION BETWEEN SAID CONTROL AND FIRST TERMINALS TO ESTABLISH SAID DEVICE IN A FIRST STABLE OPERATING CONDITION IN WHICH CURRENT IS TRANSLATED BETWEEN SAID FIRST AND SECOND TERMINALS, AND RESPONSIVE TO A PREDETERMINED REVERSE CURRENT FLOW BETWEEN SAID CONTROL AND FIRST TERMINALS TO ESTABLISH SAID DEVICE IN A SECOND STABLE OPERATING CONDITION IN WHICH SUBSTANTIALLY NO CURRENT IS TRANSLATED BETWEEN SAID FIRST AND SECOND TERMINALS; AN OUTPUT LOAD, INCLUDING A SUBSTANTIALLY INDUCTIVE HORIZONTAL DEFLECTION YOKE, COUPLED TO SAID FIRST AND SECOND TERMINALS OF SAID SWITCHING DEVICE; A PULSE SIGNAL SOURCE FOR DEVELOPING PERIODICALLY RECURRING PULSES OF ALTERNATING POLARITY; MEANS FOR UTILIZING THE PULSES OF ONE POLARITY TO TRANSLATE TURN-ON CURRENT BETWEEN SAID CONTROL AND FIRST TERMINALS TO EFFECT SUBSTANTIALLY LINEARLY INCREASING CURRENT FLOW THROUGH SAID LOAD, AND FOR UTILIZING THE PULSES OF THE OTHER POLARITY TO TRANSLATE TURN-OFF CURRENT BETWEEN SAID CONTROL AND FIRST TERMINALS;