SE7907483L - Digital process och metod med begagnande av frekvensforflyttningsteknik, speciellt for metningar av lagfrekvenser - Google Patents
Digital process och metod med begagnande av frekvensforflyttningsteknik, speciellt for metningar av lagfrekvenserInfo
- Publication number
- SE7907483L SE7907483L SE7907483A SE7907483A SE7907483L SE 7907483 L SE7907483 L SE 7907483L SE 7907483 A SE7907483 A SE 7907483A SE 7907483 A SE7907483 A SE 7907483A SE 7907483 L SE7907483 L SE 7907483L
- Authority
- SE
- Sweden
- Prior art keywords
- frequency
- beginning
- specifically
- transfer technology
- digital process
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
- G06F7/62—Performing operations exclusively by counting total number of pulses ; Multiplication, division or derived operations using combined denominational and incremental processing by counters, i.e. without column shift
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/60—Analogue/digital converters with intermediate conversion to frequency of pulses
Landscapes
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Computing Systems (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Computational Mathematics (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
- Manipulation Of Pulses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/941,495 US4230991A (en) | 1978-09-11 | 1978-09-11 | Digital frequency process and method using frequency shifting techniques, especially for low frequency measurements |
Publications (1)
Publication Number | Publication Date |
---|---|
SE7907483L true SE7907483L (sv) | 1980-03-12 |
Family
ID=25476578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7907483A SE7907483L (sv) | 1978-09-11 | 1979-09-10 | Digital process och metod med begagnande av frekvensforflyttningsteknik, speciellt for metningar av lagfrekvenser |
Country Status (5)
Country | Link |
---|---|
US (1) | US4230991A (sv) |
JP (1) | JPS5598369A (sv) |
BR (1) | BR7905777A (sv) |
GB (1) | GB2031672A (sv) |
SE (1) | SE7907483L (sv) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE430554B (sv) * | 1982-04-06 | 1983-11-21 | Ericsson Telefon Ab L M | Anordning for att identifiera digitala flerfrekvenssignaler |
WO1986007156A1 (en) * | 1985-05-28 | 1986-12-04 | Emkay Manufacturing Company | High speed digital frequency counter |
US5027046A (en) * | 1990-05-29 | 1991-06-25 | Westinghouse Electric Corp. | Circuit and method for monitoring voltage pulse widths |
US5463655A (en) * | 1993-02-17 | 1995-10-31 | National Semiconductor Corporation | Single-ended pulse gating circuit |
CN1330969C (zh) * | 2004-08-25 | 2007-08-08 | 江苏省电力公司南京供电公司 | 高压输电线路工频参数测试仪及测试方法 |
DE102010038573B4 (de) * | 2010-07-28 | 2023-08-31 | Endress+Hauser SE+Co. KG | Messverfahren für eine von Hilfsmessgrößen abhängige Messgröße |
GB202015555D0 (en) * | 2020-10-01 | 2020-11-18 | Thermo Fisher Scient Bremen Gmbh | Determining the average frequency of a series of pulses |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4107600A (en) * | 1976-12-13 | 1978-08-15 | General Electric Company | Adaptive frequency to digital converter system |
-
1978
- 1978-09-11 US US05/941,495 patent/US4230991A/en not_active Expired - Lifetime
-
1979
- 1979-09-04 GB GB7930590A patent/GB2031672A/en not_active Withdrawn
- 1979-09-10 SE SE7907483A patent/SE7907483L/sv not_active Application Discontinuation
- 1979-09-10 BR BR7905777A patent/BR7905777A/pt unknown
- 1979-09-11 JP JP11662879A patent/JPS5598369A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
GB2031672A (en) | 1980-04-23 |
US4230991A (en) | 1980-10-28 |
JPS5598369A (en) | 1980-07-26 |
BR7905777A (pt) | 1980-05-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
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