Serial linked interconnect for summation of multiple waveforms o

Details Serial linked interconnect for summation of multiple waveforms o Serial linked interconnect for summation of multiple waveforms o

1994-09-30

1998-03-03

Bocure, Tesfaldet

Pulse or digital communications

Transceivers

Modems

375206, H04B 138

Patent

active

057243859

ABSTRACT:
A modulator for a spread spectrum telecommunication system not only receives local data and processes it, but also receives input data from one or more other modulators, sums the input data with the local data, and provides the sum as data for a subsequent modulator or as final output for a transmit power amplifier. The modulator includes an input block and an output block and, depending on a control data signal, input data will be summed with the internally generated local data of the modulator before being provided to the output block. The output data can include parity data. The parity data can be used to check for faults such as might be introduced, for example, by a faulty connection or broken hard-wired interconnect. If an error is detected, the summation function of the transmit modulator can be automatically disabled.

REFERENCES:
patent: 5016255 (1991-05-01), Dixon et al.
patent: 5103459 (1992-04-01), Gilhousen et al.
patent: 5319672 (1994-06-01), Sumiya et al.
patent: 5347537 (1994-09-01), Mori et al.
Richard Kerr et al., "The CDMA Digital Cellular System an Asic Overview", IEEE Custom Integrated Circuits Conference, May 3-6, 1992, pp. 10.1.1-10.1.7.
Valy Lev et al., "Development of Mobile Communications Systems in a World of Standards: A Case Study", MRC Mobile Radio Conference, Valbonne, France, Nov. 13-15, 1991, pp. 145-150.
Behague et al., "Modularity and Flexibility: The Keys to Base Station System Configuration for the GSM Network", MRC Mobile Radio Conference Valbonne, France, Nice France,Nov. 13-15, 1991, pp. 160-168.

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