DE3856045T2 - Hochauflösungsumwandlung von phase zur sinusamplitude - Google Patents

Hochauflösungsumwandlung von phase zur sinusamplitude

Info

Publication number
DE3856045T2
DE3856045T2 DE3856045T DE3856045T DE3856045T2 DE 3856045 T2 DE3856045 T2 DE 3856045T2 DE 3856045 T DE3856045 T DE 3856045T DE 3856045 T DE3856045 T DE 3856045T DE 3856045 T2 DE3856045 T2 DE 3856045T2
Authority
DE
Germany
Prior art keywords
amplitude
series
term
data
phase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE3856045T
Other languages
English (en)
Other versions
DE3856045D1 (de
Inventor
Lindsay Weaver
Richard Kerr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of DE3856045D1 publication Critical patent/DE3856045D1/de
Application granted granted Critical
Publication of DE3856045T2 publication Critical patent/DE3856045T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/02—Digital function generators
    • G06F1/03—Digital function generators working, at least partly, by table look-up
    • G06F1/035—Reduction of table size
    • G06F1/0356—Reduction of table size by using two or more smaller tables, e.g. addressed by parts of the argument
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2101/00—Indexing scheme relating to the type of digital function generated
    • G06F2101/04—Trigonometric functions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2101/00—Indexing scheme relating to the type of digital function generated
    • G06F2101/08—Powers or roots
DE3856045T 1988-01-19 1988-12-21 Hochauflösungsumwandlung von phase zur sinusamplitude Expired - Lifetime DE3856045T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/145,789 US4905177A (en) 1988-01-19 1988-01-19 High resolution phase to sine amplitude conversion
PCT/US1988/004622 WO1989006838A1 (en) 1988-01-19 1988-12-21 High resolution phase to sine amplitude conversion

Publications (2)

Publication Number Publication Date
DE3856045D1 DE3856045D1 (de) 1997-11-20
DE3856045T2 true DE3856045T2 (de) 1998-05-07

Family

ID=22514559

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3856045T Expired - Lifetime DE3856045T2 (de) 1988-01-19 1988-12-21 Hochauflösungsumwandlung von phase zur sinusamplitude

Country Status (7)

Country Link
US (1) US4905177A (de)
EP (1) EP0398910B1 (de)
JP (1) JP2768778B2 (de)
AT (1) ATE159357T1 (de)
DE (1) DE3856045T2 (de)
HK (1) HK1015180A1 (de)
WO (1) WO1989006838A1 (de)

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US20020051434A1 (en) * 1997-10-23 2002-05-02 Ozluturk Fatih M. Method for using rapid acquisition spreading codes for spread-spectrum communications
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US7324598B2 (en) * 2002-07-15 2008-01-29 Intel Corporation Apparatus and method to reduce quantization error
US7457838B2 (en) * 2003-12-03 2008-11-25 Marvell World Trade Ltd. Methods and apparatus for performing calculations using reduced-width data
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WO2004082146A2 (en) * 2004-02-10 2004-09-23 Raytheon Company Digital-phase to digital amplitude translator with first bit off priority coded output for input to unit weighed digital to analog converter
US7129753B2 (en) * 2004-05-26 2006-10-31 Infineon Technologies Ag Chip to chip interface
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WO2006039550A2 (en) * 2004-09-30 2006-04-13 Efficient Channel Coding, Inc. Frame-based carrier frequency and phase recovery system and method
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US7657589B2 (en) * 2005-08-17 2010-02-02 Maxim Integrated Products System and method for generating a fixed point approximation to nonlinear functions
US7984091B1 (en) * 2005-10-14 2011-07-19 Xilinx, Inc. Quadratic approximation for fast fourier transformation
WO2012025796A1 (en) 2010-08-27 2012-03-01 M.S. Ramaiah School Of Advanced Studies Method and apparatus for direct digital synthesis of signals using taylor series expansion
US8659331B2 (en) * 2012-01-18 2014-02-25 Qualcomm Incorporated High accuracy sin-cos wave and frequency generators, and related systems and methods
US9021002B2 (en) 2013-02-05 2015-04-28 Hong Kong Applied Science & Technology Research Institute Company, Limited Phase-to-amplitude converter for direct digital synthesizer (DDS) with reduced AND and reconstructed ADD logic arrays
US8884664B1 (en) * 2013-03-15 2014-11-11 Anritsu Company Systems and methods for generating low band frequency sine waves
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Also Published As

Publication number Publication date
WO1989006838A1 (en) 1989-07-27
US4905177A (en) 1990-02-27
DE3856045D1 (de) 1997-11-20
EP0398910A4 (en) 1992-03-11
JPH04501025A (ja) 1992-02-20
EP0398910B1 (de) 1997-10-15
ATE159357T1 (de) 1997-11-15
EP0398910A1 (de) 1990-11-28
JP2768778B2 (ja) 1998-06-25
HK1015180A1 (en) 1999-10-08

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