Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Converting – per se – of an ac input to corresponding dc at an...
Patent
1996-05-14
1997-08-19
Heckler, Thomas M.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Converting, per se, of an ac input to corresponding dc at an...
327153, G06F 112
Patent
active
056597193
ABSTRACT:
A data multiplex circuit possessing a short delay for generating a signal which is synchronous with the phase of the data from the data generation circuit, and for generating a multiplex clock corresponding to this signal. A data generation circuit generates a reference signal which is adjusted to match the output of the data. This reference signal is compared to a multiplex clock by a comparison circuit. The output of the comparison circuit is then converted by a control circuit into a reset signal which, based on the phase difference, resets a dividing circuit for multiplexing. The dividing circuit resets continuously until the phase of its output signal matches that of the data output of the data generation circuit. By resetting the dividing circuit, the phase of the multiplex clock signal to be input into multiplex circuit is correlatively synchronized with regard to the delay of the data generation circuit. Consequently, the multiplex clock and the retiming clock do not need to be synchronous with the phase of the data generation circuit, and multiplexing can be performed on arbitrary frequencies.
REFERENCES:
patent: 4694472 (1987-09-01), Torok et al.
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patent: 4965797 (1990-10-01), Yamane et al.
patent: 5175544 (1992-12-01), McKeen
patent: 5239546 (1993-08-01), Hayashi
Ando Electric Co. Ltd.
Heckler Thomas M.
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