GB2352346B - Direct digital synthesis of variable frequency waveforms - Google Patents

Direct digital synthesis of variable frequency waveforms

Info

Publication number
GB2352346B
GB2352346B GB9917076A GB9917076A GB2352346B GB 2352346 B GB2352346 B GB 2352346B GB 9917076 A GB9917076 A GB 9917076A GB 9917076 A GB9917076 A GB 9917076A GB 2352346 B GB2352346 B GB 2352346B
Authority
GB
United Kingdom
Prior art keywords
variable frequency
direct digital
digital synthesis
frequency waveforms
waveforms
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
GB9917076A
Other versions
GB9917076D0 (en
GB2352346A (en
Inventor
Alastair Fields
Phillip James Harbord
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.)
Fluke Precision Measurement Ltd
Original Assignee
Fluke Precision Measurement Ltd
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 Fluke Precision Measurement Ltd filed Critical Fluke Precision Measurement Ltd
Priority to GB9917076A priority Critical patent/GB2352346B/en
Publication of GB9917076D0 publication Critical patent/GB9917076D0/en
Publication of GB2352346A publication Critical patent/GB2352346A/en
Application granted granted Critical
Publication of GB2352346B publication Critical patent/GB2352346B/en
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
    • G06F1/0321—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
    • G06F1/0328—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers in which the phase increment is adjustable, e.g. by using an adder-accumulator
    • 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
    • G06F1/0321—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
    • G06F1/0342—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers for generating simultaneously two or more related waveforms, e.g. with different phase angles only
GB9917076A 1999-07-22 1999-07-22 Direct digital synthesis of variable frequency waveforms Expired - Lifetime GB2352346B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9917076A GB2352346B (en) 1999-07-22 1999-07-22 Direct digital synthesis of variable frequency waveforms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9917076A GB2352346B (en) 1999-07-22 1999-07-22 Direct digital synthesis of variable frequency waveforms

Publications (3)

Publication Number Publication Date
GB9917076D0 GB9917076D0 (en) 1999-09-22
GB2352346A GB2352346A (en) 2001-01-24
GB2352346B true GB2352346B (en) 2003-09-03

Family

ID=10857637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9917076A Expired - Lifetime GB2352346B (en) 1999-07-22 1999-07-22 Direct digital synthesis of variable frequency waveforms

Country Status (1)

Country Link
GB (1) GB2352346B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020205949A1 (en) * 2019-04-03 2020-10-08 Butterfly Network, Inc. Methods and apparatuses for elevational beamforming of ultrasound data

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2276053A (en) * 1993-02-24 1994-09-14 Nec Corp Direct digital synthesizer
US5598440A (en) * 1994-11-08 1997-01-28 Mpb Technologies Inc. DDS driven DDS synthesizer for generating sinewave waveforms with reduced spurious signal levels

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2276053A (en) * 1993-02-24 1994-09-14 Nec Corp Direct digital synthesizer
US5598440A (en) * 1994-11-08 1997-01-28 Mpb Technologies Inc. DDS driven DDS synthesizer for generating sinewave waveforms with reduced spurious signal levels

Also Published As

Publication number Publication date
GB9917076D0 (en) 1999-09-22
GB2352346A (en) 2001-01-24

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20190721