[go: up one dir, main page]

GB2199708B - Digital automatic frequency control - Google Patents

Digital automatic frequency control

Info

Publication number
GB2199708B
GB2199708B GB8626167A GB8626167A GB2199708B GB 2199708 B GB2199708 B GB 2199708B GB 8626167 A GB8626167 A GB 8626167A GB 8626167 A GB8626167 A GB 8626167A GB 2199708 B GB2199708 B GB 2199708B
Authority
GB
United Kingdom
Prior art keywords
frequency control
automatic frequency
digital automatic
digital
control
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
GB8626167A
Other versions
GB2199708A (en
GB8626167D0 (en
Inventor
Robert Jensen
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.)
Motorola Solutions Danmark AS
Original Assignee
Storno AS
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 Storno AS filed Critical Storno AS
Priority to GB8626167A priority Critical patent/GB2199708B/en
Publication of GB8626167D0 publication Critical patent/GB8626167D0/en
Publication of GB2199708A publication Critical patent/GB2199708A/en
Application granted granted Critical
Publication of GB2199708B publication Critical patent/GB2199708B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
GB8626167A 1986-11-01 1986-11-01 Digital automatic frequency control Expired - Lifetime GB2199708B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8626167A GB2199708B (en) 1986-11-01 1986-11-01 Digital automatic frequency control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8626167A GB2199708B (en) 1986-11-01 1986-11-01 Digital automatic frequency control

Publications (3)

Publication Number Publication Date
GB8626167D0 GB8626167D0 (en) 1986-12-03
GB2199708A GB2199708A (en) 1988-07-13
GB2199708B true GB2199708B (en) 1991-05-01

Family

ID=10606686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8626167A Expired - Lifetime GB2199708B (en) 1986-11-01 1986-11-01 Digital automatic frequency control

Country Status (1)

Country Link
GB (1) GB2199708B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0500373B1 (en) * 1991-02-22 1998-04-29 Sony Corporation Time division duplex transmitter-receiver
CA2098660C (en) * 1992-06-23 1999-08-03 Gen Suganuma Automatic frequency control circuit
FI923464L (en) * 1992-07-31 1994-02-01 Nokia Mobile Phones Ltd Foerfarande och system Foer alstring av frequencyner i en radiotelefon

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1409670A (en) * 1971-12-22 1975-10-08 Siemens Ag Automatic frequency controlled oscillator circuits
GB1482089A (en) * 1975-04-11 1977-08-03 Post Office Automatic frequency control
GB2041682A (en) * 1979-02-08 1980-09-10 Jerrolds Electronics Corp Digital frequency lock tuning system
US4380742A (en) * 1980-08-04 1983-04-19 Texas Instruments Incorporated Frequency/phase locked loop circuit using digitally controlled oscillator
GB2112236A (en) * 1981-11-03 1983-07-13 Telecommunications Sa Digital device for clock signal synchronization
EP0091200A2 (en) * 1982-04-05 1983-10-12 Laser Magnetic Storage International Company Clock recovery apparatus
GB2122822A (en) * 1982-06-30 1984-01-18 Int Standard Electric Corp Frequency control device to synchronise an oscillator with an external signal of very accurate mean frequency but having a high jitter
US4531102A (en) * 1983-02-28 1985-07-23 Gk Technologies, Incorporated Digital phase lock loop system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1409670A (en) * 1971-12-22 1975-10-08 Siemens Ag Automatic frequency controlled oscillator circuits
GB1482089A (en) * 1975-04-11 1977-08-03 Post Office Automatic frequency control
GB2041682A (en) * 1979-02-08 1980-09-10 Jerrolds Electronics Corp Digital frequency lock tuning system
US4380742A (en) * 1980-08-04 1983-04-19 Texas Instruments Incorporated Frequency/phase locked loop circuit using digitally controlled oscillator
GB2112236A (en) * 1981-11-03 1983-07-13 Telecommunications Sa Digital device for clock signal synchronization
EP0091200A2 (en) * 1982-04-05 1983-10-12 Laser Magnetic Storage International Company Clock recovery apparatus
GB2122822A (en) * 1982-06-30 1984-01-18 Int Standard Electric Corp Frequency control device to synchronise an oscillator with an external signal of very accurate mean frequency but having a high jitter
US4531102A (en) * 1983-02-28 1985-07-23 Gk Technologies, Incorporated Digital phase lock loop system

Also Published As

Publication number Publication date
GB2199708A (en) 1988-07-13
GB8626167D0 (en) 1986-12-03

Similar Documents

Publication Publication Date Title
GB8630661D0 (en) Digital timepiece
GB2158601B (en) Automatic shutter-diaphragm
GB2190774B (en) Digital time delay
GB8717706D0 (en) Control circuit
GB2194165B (en) An automatic egg-beater
EP0254877A3 (en) Automatic drift control circuit
EP0335370A3 (en) Automatic frequency control circuit
GB8602215D0 (en) Automatic control system
EP0249279A3 (en) Digital filter
GB2161987B (en) Automatic sectionaliser
GB8620960D0 (en) Control circuit
EP0302290A3 (en) Automatic frequency control system
GB2199708B (en) Digital automatic frequency control
HUT49766A (en) Videorecorder
GB8515533D0 (en) Automatic frequency control
GB2211039B (en) Digital frequency converter
GB8729611D0 (en) Control circuit
GB8618673D0 (en) Digital timepiece
GB8608588D0 (en) Digital signal control apparatus
GB2195417B (en) Twistgrip control
GB8627851D0 (en) Control circuit
GB8305179D0 (en) Automatic umbrella
KR890009210Y1 (en) Automatic mode changing circuit
GB8621640D0 (en) Digital access control
GB8625559D0 (en) Automatic pet-feeder

Legal Events

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

Effective date: 20011101