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.)
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AT&T Corp
Original Assignee
Western Electric Co Inc
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Filing date
Publication date
Application filed by Western Electric Co IncfiledCriticalWestern Electric Co Inc
Publication of ES357159A1publicationCriticalpatent/ES357159A1/en
Control Of Motors That Do Not Use Commutators
(AREA)
Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits
(AREA)
Abstract
Discriminator circuit, characterized by a glass body; a first electrode system mounted on the body, with which it forms an input resonator to respond to a frequency modulated input signal; second and third electrode systems also mounted on the glass body, to form with it two first and second output resonators connected to the input resonator; said input resonator being tuned to a particular frequency, and the output resonators tuned to frequencies respectively greater and less than said particular frequency and forming respective pitch bands with the input resonator; and circuit elements to subtractively combine the output of the output resonators and thereby form a demodulated output. (Machine-translation by Google Translate, not legally binding)
ES357159A1967-08-041968-07-31Discriminator circuit. (Machine-translation by Google Translate, not legally binding)
ExpiredES357159A1
(en)
Circuit system oscillator vertical frequency, vertical linearity and amplification of image (lupa vision) for television receivers. (Machine-translation by Google Translate, not legally binding)
Improvements in the systems of wave switching and selection of frequencies in radio and television receivers. (Machine-translation by Google Translate, not legally binding)