Circuit for producing sequentially spaced pulses

Claim 1

A circuit for generating two consecutive, non-overlapping pulses, comprising: first, second, and third bistable circuit elements, each bistable element having a set input for setting the element to one stable state, a reset input for setting the element to another stable state, and true and false outputs; each bistable element being of the type which is set to said one stable state when the signal at its set input makes a transition from a first binary value to a second binary value subsequent to the signal at its reset input having made a transition to said second binary value; each bistable circuit being initially in a stable state; means for applying an input signal of one binary value to said set input of said first bistable element for setting it to its second stable state, other than its initial state; means, responsive to said input signal representing a bit of the other than said one binary value and to said first bistable circuit being in its second stable state, coupled to the set input of said second bistable circuit, for setting it to its second, other than initial, stable state; means, responsive to said input signal representing a bit of said one binary value and to said second bistable circuit being in its second stable state, coupled to the set input of said third bistable circuit for setting it to its second other than initial, stable state; means for combining outputs of said first and second bistable circuits for producing a first pulse; and means for combining outputs of said second and third bistable circuits for producing a second pulse consecutive to, and non-overlapping with, said first pulse.