HK1015180A1 - High resolution phase to sine amplitude conversion - Google Patents

High resolution phase to sine amplitude conversion

Info

Publication number
HK1015180A1
HK1015180A1 HK98119126A HK98119126A HK1015180A1 HK 1015180 A1 HK1015180 A1 HK 1015180A1 HK 98119126 A HK98119126 A HK 98119126A HK 98119126 A HK98119126 A HK 98119126A HK 1015180 A1 HK1015180 A1 HK 1015180A1
Authority
HK
Hong Kong
Prior art keywords
amplitude
series
term
data
lower phase
Prior art date
Application number
HK98119126A
Other languages
English (en)
Inventor
Lindsay A Weaver
Richard J Kerr
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 HK1015180A1 publication Critical patent/HK1015180A1/xx

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Analogue/Digital Conversion (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Networks Using Active Elements (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measuring Phase Differences (AREA)
HK98119126A 1988-01-19 1998-12-28 High resolution phase to sine amplitude conversion HK1015180A1 (en)

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 (fr) 1988-01-19 1988-12-21 Conversion de haute resolution de valeur de phase en valeur d'amplitude sinusoidale

Publications (1)

Publication Number Publication Date
HK1015180A1 true HK1015180A1 (en) 1999-10-08

Family

ID=22514559

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98119126A HK1015180A1 (en) 1988-01-19 1998-12-28 High resolution phase to sine amplitude conversion

Country Status (7)

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

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WO2004082146A2 (fr) * 2004-02-10 2004-09-23 Raytheon Company Translateur de phase numerique a amplitude numerique avec sortie codee a priorite premier bit dans un convertisseur numerique-analogique a ponderation unitaire
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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
DE3856045T2 (de) 1998-05-07
JPH04501025A (ja) 1992-02-20
ATE159357T1 (de) 1997-11-15
EP0398910A4 (en) 1992-03-11
JP2768778B2 (ja) 1998-06-25
US4905177A (en) 1990-02-27
WO1989006838A1 (fr) 1989-07-27
EP0398910B1 (fr) 1997-10-15
EP0398910A1 (fr) 1990-11-28
DE3856045D1 (de) 1997-11-20

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Legal Events

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PE Patent expired

Effective date: 20081220