Adjustable attenuation member for a digital telecommunications s

Details Adjustable attenuation member for a digital telecommunications s Adjustable attenuation member for a digital telecommunications s

1979-05-21

1984-06-12

Miller, C. D.

Communications: electrical

Audible indication

Percussion-type sound producer

364715, H03K 1300

Patent

active

044544987

ABSTRACT:
A digital telecommunications system having an adjustable attenuation member incorporates first and second memories for altering the values of different pulse code modulated words, representing different amplitude values of transmitted waves, such as tone frequencies. One of the memories alters the first three amplitude bit values of a special pulse code modulated word to alter the values for example in six-dB steps. The other memory defines the values of smaller steps. The change of the output code from the first memory and the determination of the characteristic to be output by the second memory is dependent upon control signals from a control unit.

REFERENCES:
patent: 3863248 (1975-01-01), Deschenes et al.
Degryse, "IEEE Transactions on Computers", vol. C-21, No. 11, Nov. 1972, pp. 1165-1168.

Affiliated with

Also associated with

Rating

Adjustable attenuation member for a digital telecommunications s does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adjustable attenuation member for a digital telecommunications s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable attenuation member for a digital telecommunications s will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-124179