Frequency divider using a charged coupled device

Details Frequency divider using a charged coupled device Frequency divider using a charged coupled device

1974-10-03

1977-07-26

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307221D, H03K 2136

Patent

active

040385655

ABSTRACT:
A CCD with N bits is clocked at a frequency f, which may be either constant or variable over a wide range. Meanwhile, a charge introduced into the first bit at t = 0 reaches the nth bit, n clock periods later, namely, at t = n/f. If this charge is sensed to give an output signal and the signal is fed back to introduce a charge again into the first bit, then a periodic output is obtained with pulses spaced every n/f seconds; the output frequency is therefore, 1
times the input clock frequency. Output frequencies f, f/2, f/3, . . . f/N can be obtained by selecting n. The system includes the following structure:

REFERENCES:
patent: 3258696 (1966-06-01), Heymann
patent: 3322974 (1967-05-01), Ahrons et al.
patent: 3614632 (1971-10-01), Leibowitz
patent: 3657658 (1972-04-01), Kubo
patent: 3675144 (1972-09-01), Zuk
patent: 3700932 (1972-10-01), Kahng
patent: 3725791 (1973-04-01), Moreau et al.
patent: 3746883 (1973-07-01), Kovac
patent: 3792322 (1974-02-01), Boyle et al.
patent: 3811055 (1974-05-01), Weimer
patent: 3868516 (1975-02-01), Buss

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