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.)
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.)
Safran Electrical and Power SAS
Precision Mecanique Labinal SA
Original Assignee
Labinal SA
Precision Mecanique Labinal SA
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 Labinal SA, Precision Mecanique Labinal SAfiledCriticalLabinal SA
Publication of ES338308A1publicationCriticalpatent/ES338308A1/en
H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
H03F3/189—High frequency amplifiers, e.g. radio frequency amplifiers
H03F3/19—High frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
H03F3/191—Tuned amplifiers
Abstract
A broadband amplifier device, with limited bandwidth, intended to amplify, in several steps, signals whose frequency spectrum includes components at very high frequency, especially television signals transposed to the intermediate frequency, characterized in that it includes a alternation of aperiodic amplification steps, that is, not tuned, broadband and variable attenuators, in combination with at least one filter or selective circuit, separating the functions of amplification, gain control and amplifier selectivity. (Machine-translation by Google Translate, not legally binding)
ES338308A1966-03-221967-03-21A broadband amplifier device. (Machine-translation by Google Translate, not legally binding)
ExpiredES338308A1
(en)
Conversion of the frequency spectrum of a pulse-position-modulated signal passing through a delay device and an amplifier switched by an input undelayed signal(Conversion of frequency spectrum of pulse- position-modulated signal passing through delay device and amplifier switched by input undelayed signal)
Improvements in the amplifier circuits for very high and ultra-low frequencies, with variable bandwidth. (Machine-translation by Google Translate, not legally binding)
Improvements in intermediate frequency amplifier stages in mixed radio receptors with modulated amplitude and modulated frequency. (Machine-translation by Google Translate, not legally binding)
Sound intermediate frequency amplifier system and relay detector for television receiver. (Machine-translation by Google Translate, not legally binding)