Oscillators – Relaxation oscillators
Patent
1973-05-29
1977-10-11
Heyman, John S.
Oscillators
Relaxation oscillators
328151, 328 14, 328 16, 84 119, 331 58, H03B 1900
Patent
active
040538397
ABSTRACT:
A frequency multiplying system and method in which a time varying analog input signal is sampled and stored in a memory matrix at a predetermined rate. The signal thus stored is read out from the memory matrix at a different rate and reconstructed into a time varying analog signal. The storage rates and readout rates are controlled by a command signal generator including a master run-up generator run up at a first run-up rate and reset by the fundamental input frequency, the highest level at the output of the run-up generator being continually stored in a memory circuit. Slave run-up generators which cycle at frequencies corresponding to the storage and reading-out of the sampled information are reset upon coincidence of their levels with the level in the memory connected to the master run-up generator. The command signal generator may be in either digital or analog form employing either counters or integrators as run-up generators. The analog input signal may be processed by either digital or analog means.
REFERENCES:
patent: 3467783 (1969-09-01), Magnuski
patent: 3784754 (1974-01-01), Hagiwara et al.
patent: 3866127 (1975-02-01), Demos et al.
Fasse Wolfgang G.
Heyman John S.
Roberts Willard W.
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