Multi-tap, digital-pulse-driven mixer

Details Multi-tap, digital-pulse-driven mixer Multi-tap, digital-pulse-driven mixer

2005-10-25

2005-10-25

Le, Amanda (Department: 2634)

Pulse or digital communications

Receivers

C375S345000, C455S334000

Reexamination Certificate

active

06959049

ABSTRACT:
A multi-tap, digital-pulse-driven mixer advantageously avoids local oscillator (11) leakage by shifting the local oscillator frequency (FLO) out of the received frequency band. Low noise figures are advantageously realized by the use of digital pulses (51, 52) as mixer drive signals (16).

REFERENCES:
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patent: 5414729 (1995-05-01), Fenton
patent: 5640698 (1997-06-01), Shen et al.
patent: 5801654 (1998-09-01), Traylor
patent: 5982315 (1999-11-01), Bazarjani et al.
patent: 6049706 (2000-04-01), Cook et al.
patent: 6075820 (2000-06-01), Comino et al.
patent: 6337885 (2002-01-01), Hellberg
patent: 6438366 (2002-08-01), Lindfors et al.
patent: 2 616 984 (1988-12-01), None
Copy of copending U.S. Appl. No. 09/850,435 filed on May 7, 2001 (Docket TI-31020).

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