DK117576C - Frequency components with variable frequency ratio. - Google Patents

Frequency components with variable frequency ratio.

Info

Publication number
DK117576C
DK117576C DK411966A DK411966A DK117576C DK 117576 C DK117576 C DK 117576C DK 411966 A DK411966 A DK 411966A DK 411966 A DK411966 A DK 411966A DK 117576 C DK117576 C DK 117576C
Authority
DK
Denmark
Prior art keywords
frequency
ratio
variable
components
frequency components
Prior art date
Application number
DK411966A
Other languages
Danish (da)
Other versions
DK117576B (en
Inventor
David John Martin
Richard David Young
Original Assignee
Plessey Co 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Publication of DK117576B publication Critical patent/DK117576B/da
Application granted granted Critical
Publication of DK117576C publication Critical patent/DK117576C/en

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K23/00Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/64Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
    • H03K23/66Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses
    • H03K23/662Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses by adding or suppressing pulses
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60Methods 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
    • G06F7/68Methods 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 using pulse rate multipliers or dividers pulse rate multipliers or dividers per se
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00Automatic control of frequency or phase; Synchronisation
    • H03L7/06Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/197Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
    • H03L7/1974Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division

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)
  • Complex Calculations (AREA)
  • Manipulation Of Pulses (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
DK411966A 1965-08-13 1966-08-10 Frequency components with variable frequency ratio. DK117576C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3477465A GB1151505A (en) 1965-08-13 1965-08-13 Improvements relating to Variable Ratio Frequency Divider Circuit Arrangements

Publications (2)

Publication Number Publication Date
DK117576B DK117576B (en) 1970-05-11
DK117576C true DK117576C (en) 1970-10-05

Family

ID=10369785

Family Applications (1)

Application Number Title Priority Date Filing Date
DK411966A DK117576C (en) 1965-08-13 1966-08-10 Frequency components with variable frequency ratio.

Country Status (5)

Country Link
DE (1) DE1298557B (en)
DK (1) DK117576C (en)
GB (1) GB1151505A (en)
NL (1) NL6610964A (en)
NO (1) NO120431B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT354620B (en) * 1977-12-27 1980-01-25 Rodler Ing Hans ARRANGEMENT FOR TREATMENT WITH INTERFERENCE CURRENTS
DE2900612C2 (en) * 1979-01-09 1983-02-24 Hans 8228 Freilassing Rodler Device for interference current therapy
CA1260563A (en) * 1985-09-03 1989-09-26 Nec Corporation Frequency synthesizer of a phase-locked type with a sampling circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL263301A (en) * 1960-04-12
DE1167074B (en) * 1960-10-11 1964-04-02 Licentia Gmbh Decadal counter with presetting or preselection
NL293848A (en) * 1962-06-15

Also Published As

Publication number Publication date
DK117576B (en) 1970-05-11
NL6610964A (en) 1967-02-14
DE1298557B (en) 1969-07-03
NO120431B (en) 1970-10-19
GB1151505A (en) 1969-05-07

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