Sampling frequency converter by linear interpolation

Details Sampling frequency converter by linear interpolation Sampling frequency converter by linear interpolation

1993-12-28

1995-09-19

Young, Brian K.

Coded data generation or conversion

Digital code to digital code converters

Data rate conversion

H03M 700

Patent

active

054519446

ABSTRACT:
A data conversion apparatus for a facsimile system converts a first digital data composed of a sequence of primary values sampled at a first frequency, into a second digital data composed of a sequence of secondary values sampled at a second frequency different from the first frequency. The apparatus is provided with a sampling frequency conversion unit operative before and after every sampling point timed by the second frequency for sampling a pair of preceding and succeeding primary values and for counting respective time differences from the sampling point to the preceding and succeeding primary values. The sampling frequency conversion unit further calculates a secondary value at every sampling point by linear interpolation of each pair of the sampled preceding and succeeding primary values according to the counted time differences to thereby produce the second digital data. A gain control unit compensates a level of the second digital data according to a level of the first digital data to thereby shape the second digital data. The second digital data is further compensated for degradation of a frequency characteristic caused by the linear interpolation to thereby further shape the second digital data.

REFERENCES:
patent: 4044306 (1977-08-01), Villeret et al.
patent: 4630034 (1986-12-01), Takahashi

Affiliated with

Also associated with

Rating

Sampling frequency converter by linear interpolation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sampling frequency converter by linear interpolation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sampling frequency converter by linear interpolation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1831061