Communication breaking device and method thereof

Details Communication breaking device and method thereof Communication breaking device and method thereof

2005-03-22

2005-03-22

Ghayour, Mohammad H. (Department: 2631)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S371000, C375S149000, C375S141000, C375S137000, C455S001000

Reexamination Certificate

active

06870889

ABSTRACT:
An inverted-code generator41inverts the PN code sequence into an inverted code sequence. The inverted code sequence is transmitted. The inverted code sequence, which is transmitted as a communication breaking wave, is formed into a code sequence in the form if inversion of a pilot signal conforming to CDMA system. Moreover, the phase of the inverted code sequence has been advanced. Therefore, the pilot signal, which is being propagated, can appropriately be compensated with the advanced inverted code sequence. Thus, a fact can be recognized by a portable telephone that the portable telephone is deviated from a communication area for the base station.

REFERENCES:
patent: 3760417 (1973-09-01), Haeff et al.
patent: 4317214 (1982-02-01), Attinello
patent: 4395734 (1983-07-01), Rypkema
patent: 4876545 (1989-10-01), Carlson et al.
patent: 5260707 (1993-11-01), Goldman
patent: 5742417 (1998-04-01), Whitney
Patent Abstract of Japan : Kawazoe 05284074 A, Oct. 29, 1993.

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