Pulse or digital communications – Spread spectrum
Patent
1999-05-13
2000-06-27
Ghebretinsae, Temesghen
Pulse or digital communications
Spread spectrum
H04B 169
Patent
active
060815485
ABSTRACT:
There is provided a radio communication apparatus which is capable of both improving communication quality and reducing power consumption. An integrating clock generated by a clock generating section is supplied to each of integration damp filters contained in each data demodulator. Synchronizing with the integrating clock, each integration damp filter samples a despread receiving signal to integrate values of levels in each sampling timing for one symbol period. Based on an integrating method selecting signal supplied from a main control section, the clock generating section generates the integrating clock having the same frequency with a spread code rate (chip rate) or the integrating clock having the frequency of eight times of the spread code rate (chip rate).
REFERENCES:
patent: 5005169 (1991-04-01), Bronder et al.
Ghebretinsae Temesghen
Kabushiki Kaisha Toshiba
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