Filter device

Details Filter device Filter device

1997-08-28

1999-09-14

Le, Dinh T.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Unwanted signal suppression

327552, H03K 500

Patent

active

059528761

ABSTRACT:
In a filter device a reference clock generator produces a reference clock signal having the stated frequency; a data signal generator generates a data signal which is asynchronous with the reference clock signal; trigger signal generator produces a trigger signal when a discrepancy which exceeds the interval of one clock of the reference signal occurs between the reference clock signal and the data signal; and a digital circuit re-samples the data signal in accordance with the reference clock signal and changes the magnification ratio of the re-sampling by increasing or reducing the sampling period of re-sampling by one clock interval of the reference signal. By changing the magnification ratio of the re-sampling on only the occasion of such a timing that a temporal discrepancy between the reference signal and the data signal has been detected, it can correct the temporal discrepancy which is due to the fact that the frequencies of the reference signal and the data signal are asynchronous with each other and can prevent spectral distortion of the transmission signal, and also it can utilize the reference signal, which is asynchronous with the data signal, for production of the transmission signal without any trouble.

REFERENCES:
patent: 4961014 (1990-10-01), Kasahara

Affiliated with

Also associated with

Rating

Filter device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Filter device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1513748