[go: up one dir, main page]

GB849394A - Improvements in or relating to radio apparatus - Google Patents

Improvements in or relating to radio apparatus

Info

Publication number
GB849394A
GB849394A GB1362/59A GB136259A GB849394A GB 849394 A GB849394 A GB 849394A GB 1362/59 A GB1362/59 A GB 1362/59A GB 136259 A GB136259 A GB 136259A GB 849394 A GB849394 A GB 849394A
Authority
GB
United Kingdom
Prior art keywords
discriminator
transistor
resistor
stepping
magnetization
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
GB1362/59A
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.)
Motors Liquidation Co
Original Assignee
General Motors Corp
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 General Motors Corp filed Critical General Motors Corp
Publication of GB849394A publication Critical patent/GB849394A/en
Expired 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
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/22—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element in which an automatic frequency control circuit is brought into action after the scanning action has been stopped

Landscapes

  • Magnetic Resonance Imaging Apparatus (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
GB1362/59A 1958-01-23 1959-01-14 Improvements in or relating to radio apparatus Expired GB849394A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US849394XA 1958-01-23 1958-01-23

Publications (1)

Publication Number Publication Date
GB849394A true GB849394A (en) 1960-09-28

Family

ID=22188165

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1362/59A Expired GB849394A (en) 1958-01-23 1959-01-14 Improvements in or relating to radio apparatus

Country Status (3)

Country Link
DE (1) DE1261562B (de)
FR (1) FR1222795A (de)
GB (1) GB849394A (de)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB473384A (en) * 1936-02-07 1937-10-12 Leon Ladislas De Kramolin Method of regulating radio sets and the like
DE885425C (de) * 1941-10-21 1953-08-06 Lorenz C Ag Anordnung zur spektralen Zerlegung und bildlichen Darstellung eines Schwingungsgemisches, insbesondere zur Funkueberwachung
NL150254B (nl) * 1948-12-02 Burroughs Corp Schijfgeheugen.
DE806795C (de) * 1948-12-21 1951-06-18 Telefunken Gmbh Pruefgeraet
DE951819C (de) * 1953-03-29 1956-11-08 Siemens Ag Mehrfachmagnetvariometer
DE1042044B (de) 1954-09-07 1958-10-30 Gen Motors Corp Einrichtung zur Impedanzabstimmung in Rundfunkgeraeten
DE1018117B (de) * 1955-03-15 1957-10-24 Siemens Ag Vorrichtung zur Regelung der Induktivitaet einer Hochfrequenzspule
DE1076759B (de) 1957-10-11 1960-03-03 Telefunken Gmbh Panoramaempfangsanlage fuer einen breiten Frequenzbereich

Also Published As

Publication number Publication date
DE1261562B (de) 1968-02-22
FR1222795A (fr) 1960-06-13

Similar Documents

Publication Publication Date Title
US2174566A (en) Automatic tuning arrangement
GB1395768A (en) Automatic tuning apparatus
US4100497A (en) Selective rescan delay for multi-channel scanning radio receiver
US2601384A (en) Electronic signal seeking receiver
US2939040A (en) Scanning generator
US3304501A (en) Time delay circuit for briefly holding a selective call transmitter energized
US3794925A (en) Frequency-skipping system for a signal-seeking receiver
US3968441A (en) Receiver tuning circuit with automatic search and AFC using common capacitor
US2890274A (en) Signal seeking tuners for television
GB849394A (en) Improvements in or relating to radio apparatus
US3388215A (en) Search tune system for television receivers
US2622202A (en) Signal tuned radio apparatus
US3714580A (en) Electronic search tuning system
US3584307A (en) Automatic motor shutoff networks for signal seeking receivers
US2584578A (en) Variable delay control circuit for motor-driven signal seeking receivers
US3890592A (en) Contactless control system for volume control and power on-off control
US2146769A (en) Separately controlled relaxation oscillator
US4348770A (en) Manual channel selection apparatus
US3528015A (en) Automatic motor turn-on networks for signal seeking receivers
US3090013A (en) L-c transistor oscillator having transformer feedback
US3890574A (en) Time-sharing scanning receiver
US2882391A (en) Electric radio tuner
GB1173642A (en) Improved Signal-Seeking Tuning System for Radio and Television Receivers.
US3789262A (en) Sawtooth scan circuit with hold feature
GB451223A (en) Improvements in and relating to wireless and like receivers, and tuning control apparatus for use therewith