GB2265511B - Direct frequency synthesiser - Google Patents

Direct frequency synthesiser

Info

Publication number
GB2265511B
GB2265511B GB9311017A GB9311017A GB2265511B GB 2265511 B GB2265511 B GB 2265511B GB 9311017 A GB9311017 A GB 9311017A GB 9311017 A GB9311017 A GB 9311017A GB 2265511 B GB2265511 B GB 2265511B
Authority
GB
United Kingdom
Prior art keywords
direct frequency
frequency synthesiser
synthesiser
direct
frequency
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 - Fee Related
Application number
GB9311017A
Other versions
GB2265511A (en
GB9311017D0 (en
Inventor
Peter Henry Saul
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.)
Plessey Semiconductors Ltd
Original Assignee
Plessey Semiconductors 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
Priority claimed from GB9000317A external-priority patent/GB2239748B/en
Application filed by Plessey Semiconductors Ltd filed Critical Plessey Semiconductors Ltd
Priority to GB9311017A priority Critical patent/GB2265511B/en
Publication of GB9311017D0 publication Critical patent/GB9311017D0/en
Publication of GB2265511A publication Critical patent/GB2265511A/en
Application granted granted Critical
Publication of GB2265511B publication Critical patent/GB2265511B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/544—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices for evaluating functions by calculation
    • G06F7/548—Trigonometric functions; Co-ordinate transformations
    • 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
    • G06F1/022—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06J—HYBRID COMPUTING ARRANGEMENTS
    • G06J1/00—Hybrid computing arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computational Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Automation & Control Theory (AREA)
  • Software Systems (AREA)
  • Fuzzy Systems (AREA)
  • Evolutionary Computation (AREA)
  • Computing Systems (AREA)
  • Computer Hardware Design (AREA)
  • Analogue/Digital Conversion (AREA)
GB9311017A 1990-01-06 1993-05-28 Direct frequency synthesiser Expired - Fee Related GB2265511B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9311017A GB2265511B (en) 1990-01-06 1993-05-28 Direct frequency synthesiser

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9000317A GB2239748B (en) 1990-01-06 1990-01-06 Direct frequency synthesiser
GB9311017A GB2265511B (en) 1990-01-06 1993-05-28 Direct frequency synthesiser

Publications (3)

Publication Number Publication Date
GB9311017D0 GB9311017D0 (en) 1993-07-14
GB2265511A GB2265511A (en) 1993-09-29
GB2265511B true GB2265511B (en) 1994-01-26

Family

ID=26296466

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9311017A Expired - Fee Related GB2265511B (en) 1990-01-06 1993-05-28 Direct frequency synthesiser

Country Status (1)

Country Link
GB (1) GB2265511B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0152324B1 (en) * 1994-12-06 1998-12-01 양승택 Semiconductor wafer carrier apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217127A (en) * 1988-04-07 1989-10-18 Plessey Co Plc Direct frequency synthesiser

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217127A (en) * 1988-04-07 1989-10-18 Plessey Co Plc Direct frequency synthesiser

Also Published As

Publication number Publication date
GB2265511A (en) 1993-09-29
GB9311017D0 (en) 1993-07-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040106