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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Priority to ES0268933ApriorityCriticalpatent/ES268933A1/en
Publication of ES268933A1publicationCriticalpatent/ES268933A1/en
Method of magnetic recording of an audio signal frequency on a magnetic carrier, in which the signal is divided into at least two parts, one of which contains the lower frequencies and the other contains the highest frequencies, the two parts being recorded in the same side of the magnetic carrier, on the same track by means of two recording air gaps located one after the other, while the recording air gap for the lower frequencies is first passed by the carrier, with an auxiliary field of high frequency being added. so that the amplitude of the auxiliary field for the signal part with the lower frequencies is greater than for the part of the signal with the higher frequencies, characterized by the fact that the part with the highest frequencies is supplied through a device of delay to the windings of the corresponding recording circuit, the delay time being equal to the time that the carrier requires to cover the distance between the first and the second air gap. (Machine-translation by Google Translate, not legally binding)
ES0268933A1961-07-081961-07-08Method and magnetic recording device (Machine-translation by Google Translate, not legally binding)
ExpiredES268933A1
(en)