FR1544994A - Variable band filter circuit - Google Patents

Variable band filter circuit

Info

Publication number
FR1544994A
FR1544994A FR128712A FR128712A FR1544994A FR 1544994 A FR1544994 A FR 1544994A FR 128712 A FR128712 A FR 128712A FR 128712 A FR128712 A FR 128712A FR 1544994 A FR1544994 A FR 1544994A
Authority
FR
France
Prior art keywords
filter circuit
band filter
variable band
variable
circuit
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
FR128712A
Other languages
French (fr)
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 Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Priority to FR128712A priority Critical patent/FR1544994A/en
Application granted granted Critical
Publication of FR1544994A publication Critical patent/FR1544994A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/24—Automatic control in frequency-selective amplifiers
    • H03G5/28—Automatic control in frequency-selective amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/0052—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1213—Frequency selective two-port networks using amplifiers with feedback using transistor amplifiers
FR128712A 1966-12-14 1967-11-17 Variable band filter circuit Expired FR1544994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR128712A FR1544994A (en) 1966-12-14 1967-11-17 Variable band filter circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US60173266A 1966-12-14 1966-12-14
FR128712A FR1544994A (en) 1966-12-14 1967-11-17 Variable band filter circuit

Publications (1)

Publication Number Publication Date
FR1544994A true FR1544994A (en) 1968-11-08

Family

ID=26180929

Family Applications (1)

Application Number Title Priority Date Filing Date
FR128712A Expired FR1544994A (en) 1966-12-14 1967-11-17 Variable band filter circuit

Country Status (1)

Country Link
FR (1) FR1544994A (en)

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