Station finder circuit for two directions

Details Station finder circuit for two directions Station finder circuit for two directions

1974-12-11

1976-09-07

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307216, 307218, 307246, 334 18, H03K 1716, H03K 1932

Patent

active

039796094

ABSTRACT:
A search tuning circuit for two search directions which includes a starting signal memory having a starting signal input. A search direction signal memory having first and second operating signal inputs is coupled to the starting signal input of the starting signal memory and to first and second search direction signal inputs of the search direction signal memory. The circuit is responsive to an operating signal at an operating signal input to write a search direction signal for a certain search direction at a starting in the corresponding memories. This circuit further include a gating circuit which in the event of simultaneous operating signals at the first and second operating signal inputs a starting signal will occur only at the starting signal input of the starting signal memory without a search direction signal being generated.

REFERENCES:
patent: 3591858 (1971-07-01), Boyd et al.
patent: 3654560 (1972-04-01), Cath et al.
patent: 3736528 (1973-05-01), Acker et al.
patent: 3743951 (1973-07-01), Carroll

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