GB1262171A - Superheterodyne receiver having automatic frequency control - Google Patents

Superheterodyne receiver having automatic frequency control

Info

Publication number
GB1262171A
GB1262171A GB3941569A GB3941569A GB1262171A GB 1262171 A GB1262171 A GB 1262171A GB 3941569 A GB3941569 A GB 3941569A GB 3941569 A GB3941569 A GB 3941569A GB 1262171 A GB1262171 A GB 1262171A
Authority
GB
United Kingdom
Prior art keywords
capacitor
station
tuning
frequency
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
Application number
GB3941569A
Other languages
English (en)
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1262171A publication Critical patent/GB1262171A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03JTUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02Automatic frequency control
    • H03J7/023Neutralization of the automatic frequency correction during a tuning change

Landscapes

  • Television Receiver Circuits (AREA)
  • Superheterodyne Receivers (AREA)
GB3941569A 1968-08-09 1969-08-06 Superheterodyne receiver having automatic frequency control Expired GB1262171A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6811422A NL6811422A (fr) 1968-08-09 1968-08-09

Publications (1)

Publication Number Publication Date
GB1262171A true GB1262171A (en) 1972-02-02

Family

ID=19804339

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3941569A Expired GB1262171A (en) 1968-08-09 1969-08-06 Superheterodyne receiver having automatic frequency control

Country Status (6)

Country Link
AT (1) AT291348B (fr)
BE (1) BE737225A (fr)
DE (1) DE1939436A1 (fr)
FR (1) FR2015393A1 (fr)
GB (1) GB1262171A (fr)
NL (1) NL6811422A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1588949A (en) * 1977-03-30 1981-05-07 Sony Corp Tuning apparatus
JPS5563118A (en) * 1978-11-02 1980-05-13 Sony Corp Aft circuit

Also Published As

Publication number Publication date
FR2015393A1 (fr) 1970-04-24
AT291348B (de) 1971-07-12
NL6811422A (fr) 1970-02-11
BE737225A (fr) 1970-02-09
DE1939436A1 (de) 1970-02-19

Similar Documents

Publication Publication Date Title
US4135158A (en) Universal automotive electronic radio
US4123724A (en) Communication equipment
US3163823A (en) Digital receiver tuning system
US4379271A (en) Input selection arrangement for applying different local oscillator signals to a prescaler of a phase-lock loop tuning system
GB1395768A (en) Automatic tuning apparatus
US4394778A (en) Tuning control apparatus of receiver
GB1130139A (en) Electronic tuning system
US4422096A (en) Television frequency synthesizer for nonstandard frequency carriers
US2896018A (en) Automatic frequency control apparatus
US4241450A (en) Automatic turn-off apparatus for a radio or television receiver
US2504663A (en) Automatic frequency control for television receivers
US2501591A (en) Multiband superheterodyne radio receiver having a push-button station selector
US4081771A (en) 82 Detent manual varactor tuning system
US2513786A (en) Receiver system
US4426734A (en) Arrangement useful in a phase locked loop tuning control system for selectively applying an aft voltage in a manner to improve loop stability
US3784917A (en) Constant lock-in range automatic frequency control
CA1149978A (fr) Dispositif de syntonisation a exploration
US4011515A (en) Tunable scanning radio receiver
GB1262171A (en) Superheterodyne receiver having automatic frequency control
US4245351A (en) AFT Arrangement for a phase locked loop tuning system
US4110693A (en) Lockup inhibiting arrangement for a phase locked loop tuning system
US3022471A (en) Self-tuning filter circuits for increasing ratio of narrow band variable frequency signal to broad band noise
US2507735A (en) Automatic tuning control apparatus
US2644035A (en) Automatic frequency control
US3205443A (en) Interfering signal resolving system