Pulse or digital communications – Receivers
Reexamination Certificate
2008-05-01
2010-11-16
Ghayour, Mohammad H (Department: 2611)
Pulse or digital communications
Receivers
C375S324000, C375S342000, C375S347000, C375S350000, C375S354000, C375S377000
Reexamination Certificate
active
07835465
ABSTRACT:
A simplified architecture is disclosed for use in wireless receiver applications, particularly for ADC conversion of received in-phase I and quadrature Q signals. Circuit area is substantially reduced by sharing a single ADC to convert both signals, switching the ADC input alternately between the i and q signals. In an embodiment, the ADC is clocked at an increased sample rate, and the digital output signals are aligned to compensate for the phase difference resulting from the implementation of a single ADC.
REFERENCES:
patent: 4878029 (1989-10-01), Saulnier et al.
patent: 5142553 (1992-08-01), Rosenkranz
patent: 5229771 (1993-07-01), Hanlon
patent: 5381446 (1995-01-01), McIntosh
patent: 5508695 (1996-04-01), Nelson et al.
patent: 5510737 (1996-04-01), Arvidsson
patent: 5550869 (1996-08-01), Gurantz et al.
patent: 5594445 (1997-01-01), Ginetti
patent: 5625359 (1997-04-01), Wilson et al.
patent: 5641931 (1997-06-01), Ogai et al.
patent: 5786782 (1998-07-01), Ostman et al.
patent: 5912921 (1999-06-01), Warren et al.
patent: 5982807 (1999-11-01), Snell
patent: 6032028 (2000-02-01), Dickey et al.
patent: 6166675 (2000-12-01), Bright
patent: 6169504 (2001-01-01), Park
patent: 6192026 (2001-02-01), Pollack et al.
patent: 6282248 (2001-08-01), Farrow et al.
patent: 6310571 (2001-10-01), Yang et al.
patent: 6313882 (2001-11-01), Limberg et al.
patent: 6545626 (2003-04-01), Nakada
patent: 6735422 (2004-05-01), Baldwin et al.
patent: 6765623 (2004-07-01), Parker
patent: 7313198 (2007-12-01), Rahman et al.
patent: 7596189 (2009-09-01), Yu et al.
patent: 2001/0030619 (2001-10-01), Jonsson et al.
patent: 2003/0009772 (2003-01-01), Karr
patent: 2003/0215027 (2003-11-01), Yu et al.
Understanding Pipelined ADCs Maxim Dallas Semiconductors, Mar. 1, 2001.
ANSI/IEEE Std 802.11, 1999 Edition, Sponsor LAN MAN Standards Committee of IEEE Computer Society, “Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications,”Ch. 12 (pp. 138-146), Ch. 13 (pp. 147), Ch. 15 (pp. 195-223).
IEEE Std 802.11b-1999, Sponsor LAN MAN Standards Committee of IEEE Computer Society, “Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, Higher-Speed Physical Layer Extension in 2.4 GHz Band,” Ch. 18 (pp. 11-58).
IEEE Std 802.11a-1999, Sponsor LAN MAN Standards Committee of IEEE Computer Society, “Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, High-Speed Physical Layer in the 5 GHz Band”.
Hu Yungping
Yu Mao
Ghayour Mohammad H
Marvell International Ltd.
Vlahos Sophia
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