Method and apparatus to emulate a filter using digital elements

Details Method and apparatus to emulate a filter using digital elements Method and apparatus to emulate a filter using digital elements

2005-07-20

2008-10-14

Young, Brian (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

Reexamination Certificate

active

07436339

ABSTRACT:
A system, apparatus, method and article to emulate a filter using digital elements are described. The apparatus may include a digital-to-analog converter having an impulse response emulator, the impulse response emulator to receive multiple digital signals each having a predetermined waveform, and convert a sequence of bits from each digital signal to a predetermined analog waveform corresponding to the sequence of bits using a lookup table or digital filter. Other embodiments are described and claimed.

REFERENCES:
patent: 5012245 (1991-04-01), Scott et al.
patent: 5369606 (1994-11-01), Hessel
patent: 5371242 (1994-12-01), Weyer et al.
patent: 5524286 (1996-06-01), Chiesa et al.
patent: 5598436 (1997-01-01), Brajal et al.
patent: 5905760 (1999-05-01), Schnabl et al.
patent: 6043707 (2000-03-01), Budnik
patent: 6125266 (2000-09-01), Matero et al.
patent: 6147553 (2000-11-01), Kolanek
patent: 6320912 (2001-11-01), Baba
patent: 6449465 (2002-09-01), Gailus et al.
patent: 6512417 (2003-01-01), Booth et al.
patent: 6515605 (2003-02-01), Panasik et al.
patent: 6621340 (2003-09-01), Perthold et al.
patent: 6646581 (2003-11-01), Huang
patent: 6834084 (2004-12-01), Hietala
patent: 2002/0098812 (2002-07-01), Sourour et al.
patent: 2002/0186783 (2002-12-01), Opas et al.
patent: 2002/0193085 (2002-12-01), Mathe et al.
patent: 2003/0095608 (2003-05-01), Duperray
patent: 2003/0215025 (2003-11-01), Hietala
patent: 2003/0215026 (2003-11-01), Hietala
patent: 2003/0235253 (2003-12-01), Dally
patent: 2004/0021517 (2004-02-01), Irvine et al.
patent: 2004/0047432 (2004-03-01), Iwasaki
patent: 2004/0179629 (2004-09-01), Song et al.
patent: 2005/0017801 (2005-01-01), Bachman, II et al.
patent: 2005/0122164 (2005-06-01), Brandt et al.
patent: 1 257 062 (2002-11-01), None
patent: 2 219 158 (1989-11-01), None
patent: 1679478 (1991-09-01), None
Kim Myung-Soon et al: “Look-up table based pulse-shaping filter design” Electronics Letters, IEE Stevenage, GB, vol. 36, No. 17, Aug. 17, 2000 (Aug. 17, 2000), pp. 1505-1506, XP006015586 ISSN: 0013-5194.

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