Spread-spectrum changeable base station

Details Spread-spectrum changeable base station Spread-spectrum changeable base station

2006-05-30

2006-05-30

Pham, Chi (Department: 2668)

Multiplex communications

Special services

Conferencing

C370S342000, C370S343000

Reexamination Certificate

active

07054278

ABSTRACT:
A base subunit receives a signal over a first frequency. A plurality of despread voice signals are produced using the received signal. The despread signals and a voice signal generated at the base subunit are combined. The combined signal is mixed with a chipping sequence. The mixed combined signal is transmitted at a second frequency.

REFERENCES:
patent: 3731198 (1973-05-01), Blasbalg
patent: 4222115 (1980-09-01), Cooper et al.
patent: 4279018 (1981-07-01), Frosch et al.
patent: 4519069 (1985-05-01), Pudsey
patent: 4765753 (1988-08-01), Schmidt
patent: 4799252 (1989-01-01), Eizenhoffer et al.
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 4914651 (1990-04-01), Lusignan
patent: 4979170 (1990-12-01), Gilhousen et al.
patent: 5005183 (1991-04-01), Carey et al.
patent: 5040238 (1991-08-01), Comroe et al.
patent: 5056109 (1991-10-01), Gilhousen et al.
patent: 5073900 (1991-12-01), Mallinckrodt
patent: 5101501 (1992-03-01), Gilhousen et al.
patent: 5109390 (1992-04-01), Gilhousen et al.
patent: 5166951 (1992-11-01), Schilling
patent: 5179572 (1993-01-01), Schilling
patent: 5191593 (1993-03-01), McDonald et al.
patent: 5218618 (1993-06-01), Sagey
patent: 5224094 (1993-06-01), Maher
patent: 5257283 (1993-10-01), Gilhousen et al.
patent: 5263045 (1993-11-01), Schilling
patent: 5265119 (1993-11-01), Gilhousen et al.
patent: 5610906 (1997-03-01), Schilling
patent: 5914949 (1999-06-01), Li
patent: 5926465 (1999-07-01), Schilling
patent: 6132306 (2000-10-01), Trompower
patent: 6141372 (2000-10-01), Chalmers
patent: 6295288 (2001-09-01), Schilling
patent: 6356534 (2002-03-01), Schilling
patent: 0 596 699 (1994-05-01), None

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