Pulse or digital communications – Spread spectrum – Direct sequence
Patent
1989-08-29
1991-11-12
Safourek, Benedict V.
Pulse or digital communications
Spread spectrum
Direct sequence
375101, H03D 324
Patent
active
050654128
ABSTRACT:
For conversion of digital signals received in analog form, scanning samples of these digital signals are sent to a digital signal receiving unit at intervals fixed by the occurrence of the scanning clock pulses after an analog-digital conversion. The respective digital signal receiving unit then supplies the phase control signals derived from the received digital signals. After filtering, these phase control signals are sent at given intervals to a clock generator for delivering the scanning clock pulses. The phase control signals are filtered in the form
REFERENCES:
patent: 4389616 (1983-06-01), Gockler et al.
patent: 4775851 (1988-10-01), Borth
Telcom Report, vol. 8 (1985), Special Issue, "Integrated Services Digital Network ISDN", pp. 22-27.
Unterrichtsblaetter derDeutschen Bundespost, vol. 34, 1981, No. 2, pp. 75-83.
Ahmed Adel A.
Bocure Tesfaldet
Safourek Benedict V.
Siemens Aktiengesellschaft
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