초록 ▼

A digital system includes apparatus for propagating falling and rising edges of a digital signal through two separate data paths each optimized to maximize propagation of one edge of the signal. The first data path is structured to propagate the first transition (e.g., falling edge) of the digital s

A digital system includes apparatus for propagating falling and rising edges of a digital signal through two separate data paths each optimized to maximize propagation of one edge of the signal. The first data path is structured to propagate the first transition (e.g., falling edge) of the digital signal with a delay less than that experienced by the second transition (rising edge); and the second data path is structured to propagate the second transition with much less delay than that experienced by the first data transitions. The outputs of the two data paths are applied to a combining circuit, and put together to form a final representation of the digital signal to use the first and second state transitions as propagated by the apparatus.

대표청구항 ▼

[ What is claimed is:] [1.] Apparatus for propagating a digital signal of the type having first state transitions from a first digital state to a second digital state, and second state transitions the second digital state to the first digital state, the apparatus comprising:a first data path having

[ What is claimed is:] [1.] Apparatus for propagating a digital signal of the type having first state transitions from a first digital state to a second digital state, and second state transitions the second digital state to the first digital state, the apparatus comprising:a first data path having an input coupled to receive the digital signal, output, the first data path being optimized to propagate the first state transitions from the input to the output with much less delay than the second state transitions;a second data path having an input coupled to receive the digital signal, an output, the second data path being optimized to propagate the second state transitions from the second data path input to the second data path output with much less delay than the first state transitions;a combine circuit coupled to the first data path and the second data path outputs to logically combine the digital signal propagated by the first and the second data paths; anda third data path having an input coupled to receive the digital signal and an output coupled to an output of said combine circuit, the third data path propagating the first stage transitions and the second state transitions with substantially equal delay.