Signal generator using multi-sampling and edge combining and associated signal generating method
AssigneeMediatek Inc.
InventorsPang-Ning Chen, Yu-Li Hsueh
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Abstract
A signal generator generates an output signal according to an oscillating signal. The signal generator has a plurality of edge sampling circuits and an edge combining circuit. Each of the edge sampling circuits receives the oscillating signal, samples the oscillating signal to obtain at least one of a rising edge and a falling edge in one cycle of the oscillating signal, and outputs a sampled signal using the at least one of the rising edge and the falling edge. The edge combining circuit combines a plurality of sampled signals generated by the edge sampling circuits, respectively, to generate the output signal.
Claims20
A signal generator for generating an output signal according to an oscillating signal, the signal generator comprising:
- a plurality of edge sampling circuits, each configured to receive the oscillating signal, sample the oscillating signal to obtain at least one of a rising edge and a falling edge in one cycle of the oscillating signal, and output a sampled signal using the at least one of the rising edge and the falling edge;
- and
- an edge combining circuit, configured to combine a plurality of sampled signals generated by the edge sampling circuits, respectively, to generate the output signal.
A signal generating method for generating an output signal according to an oscillating signal, the signal generating method comprising:
- performing a plurality of edge sampling operations upon the oscillating signal, respectively, wherein each of the edge sampling operations comprises a step of sampling the oscillating signal to obtain at least one of a rising edge and a falling edge in one cycle of the oscillating signal, and a step of outputting a sampled signal using the at least one of the rising edge and the falling edge;
- and
- combining a plurality of different sampled signals generated by the edge sampling operations, respectively, to generate the output signal.
Dependencies are inferred from the claim text.