Wireless modem

Details Wireless modem Wireless modem

2003-11-26

2008-08-05

Tran, Tuan A (Department: 2618)

Telecommunications

Transmitter

Power control, power supply, or bias voltage supply

C455S041200, C455S063100, C455S074000, C455S074100, C455S557000, C455S558000, C455S127100, C455S522000, C375S222000, C379S390030, C379S390040, C379S395000

Reexamination Certificate

active

07409195

ABSTRACT:
A modem includes a base unit for transmitting a data signal, and a communication card which receives the data signal from the base unit over a wireless medium and which performs echo canceling on the data signal. The base unit is in communication with a telephone line and receives an original signal from the telephone line. The base unit generates an RF modulated signal based on the original signal. The base unit includes a transmitter for transmitting the data signal. Circuitry in the base unit receives the original signal from the telephone line and generates a combined data signal from the original signal and echo signals and maintains a peak voltage of the combined signal which is within the linear amplification region of the transmitter.

REFERENCES:
patent: 4003006 (1977-01-01), Mandeville et al.
patent: 4171469 (1979-10-01), Brooks
patent: 4523155 (1985-06-01), Walczak et al.
patent: 4727535 (1988-02-01), Brandt
patent: 4813073 (1989-03-01), Ling
patent: 4835765 (1989-05-01), Bergmans et al.
patent: 4970715 (1990-11-01), McMahan
patent: 5267310 (1993-11-01), Yoshiba
patent: 5297203 (1994-03-01), Rose et al.
patent: 5367563 (1994-11-01), Sainton
patent: 5553318 (1996-09-01), Ohmagari et al.
patent: 5587998 (1996-12-01), Velardo, Jr. et al.
patent: 5627857 (1997-05-01), Wilson
patent: 5711012 (1998-01-01), Bottoms et al.
patent: 5812537 (1998-09-01), Betts et al.
patent: 5819165 (1998-10-01), Hulkko et al.
patent: 5873039 (1999-02-01), Najafi
patent: 5926756 (1999-07-01), Piosenka et al.
patent: 5930719 (1999-07-01), Babitch et al.
patent: 5955921 (1999-09-01), Ide et al.
patent: 5978689 (1999-11-01), Tuoriniemi et al.
patent: 6070058 (2000-05-01), Waldroup et al.
patent: 6072998 (2000-06-01), Kaku
patent: 6147979 (2000-11-01), Michel et al.
patent: 6172985 (2001-01-01), Gilbert
patent: 6289213 (2001-09-01), Flint et al.
patent: 6477250 (2002-11-01), Sheets
patent: 6505222 (2003-01-01), Davis et al.
patent: 6522640 (2003-02-01), Liebenow
patent: 6591090 (2003-07-01), Vuorio et al.
patent: 6611681 (2003-08-01), Henderson
patent: 6711391 (2004-03-01), Walker et al.
patent: 6745055 (2004-06-01), Iyengar et al.
patent: 6751474 (2004-06-01), Lin et al.
patent: 6763228 (2004-07-01), Prentice et al.
patent: 2002/0049036 (2002-04-01), Bullock et al.
patent: 405095412 (1993-04-01), None
International Search Report for Application PCT/US03/35527.

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