Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1975-07-28
1977-08-09
Miller, Jr., Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307220R, 307225R, 328 46, H03K 2100, H03K 2308
Patent
active
040414035
ABSTRACT:
An arrangement for frequency division of a symmetrical pulse train by N/2 where N is an odd integer greater than 1; this arrangement does not require the use of any one-shot multivibrators or delay elements and employs only log.sub.2 (N+1) flip-flops in its design. In one embodiment a two state gating circuit selectively allows either the input pulse train or its inverse to be fed to a modulo (N+1)/2 counter. The state of the gating circuit is controlled by a flip-flop which toggles whenever the counter reaches its maximum count. In addition, the counter produces an output pulse as it advances through each of its counting sequences. Thus, the counter, which advances in response to falling pulse edges, alternates between counting falling edges of the input pulse train and the inverted input pulse train thereby counting to N+1 in N pulse periods while yielding two equally-spaced output pulses.
REFERENCES:
patent: 3189832 (1965-06-01), Pugh
patent: 3430067 (1969-02-01), Baum
patent: 3446947 (1969-05-01), Overstreet, Jr.
patent: 3571728 (1971-03-01), Andrea et al.
patent: 3818354 (1974-06-01), Tomisawa et al.
patent: 3896387 (1975-07-01), Kokado
Bell Telephone Laboratories Incorporated
Miller, Jr. Stanley D.
Padden Frederick W.
Popper Howard R.
LandOfFree
Divide-by-N/2 frequency division arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Divide-by-N/2 frequency division arrangement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Divide-by-N/2 frequency division arrangement will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1231142