Digital converter from continuous variable slope delta modulatio

Details Digital converter from continuous variable slope delta modulatio Digital converter from continuous variable slope delta modulatio

1974-05-08

1977-07-12

Sloyan, Thomas J.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

179 15AP, 340347DD, H03K 1324

Patent

active

040357244

ABSTRACT:
The invention relates to a digital converter and to a method for digitally converting a coded signal being at a delta rate into another coded signal flowing at a PCM rate. First, the code of the delta signal is converted into an intermediate code, this intermediate code being at a rate corresponding to the delta rate. Then, the rate of the intermediate coded signal is converted into the rate of the PCM signal. And, finally, the code of the intermediate signal is changed into the code of the PCM signal.

REFERENCES:
patent: B295674 (1975-01-01), McDonald
patent: 3526855 (1970-09-01), McDonald
patent: 3638219 (1972-01-01), Harms
patent: 3683288 (1972-08-01), Curry
patent: 3694639 (1972-09-01), Deschenes et al.
patent: 3703688 (1972-11-01), Flanagan
patent: 3706944 (1972-12-01), Tewksbury
patent: 3707712 (1972-12-01), Deschenes et al.
patent: 3746990 (1973-07-01), LeDiberder et al.
patent: 3750144 (1973-07-01), Bolus et al.
patent: 3766542 (1973-10-01), Tomazawa
patent: 3825831 (1974-07-01), Ishiguro
Cummiskey et al, "Adaptive Quantizing in Differential PCM -," 9/1973, BSTJ vol. 52, No. 7, pp. 1105-1118.
Schindler, "Linear, Nonlinear, and Adaptive Delta Modulation," 11/1974, IEEE Trans. on Commun. vol. COM-22, pp. 1807-1823.

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