Ink injection type writing system using amplitude-modulated electrical signals

An ink ejection system of the invention includes an electrical circuit generating sinusoidal wave pulses and a liquid applying unit operable to discharge the liquid in pulsed jets in response to the sinusoidal wave pulses. The circuit comprises means for generating a sinusoidal signal of constant am...

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Bibliographische Detailangaben
Hauptverfasser:	HAYAMI, HEIJIRO, TSUCHIYA, HIROYOSHI, TSUDA, YUKIFUMI, KANNO, YOSHIMITSU, YOSHIDA, KUNIO
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING CORRECTION OF TYPOGRAPHICAL ERRORS COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY HANDLING RECORD CARRIERS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES PERFORMING OPERATIONS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRESENTATION OF DATA PRINTING RECOGNITION OF DATA RECORD CARRIERS SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	An ink ejection system of the invention includes an electrical circuit generating sinusoidal wave pulses and a liquid applying unit operable to discharge the liquid in pulsed jets in response to the sinusoidal wave pulses. The circuit comprises means for generating a sinusoidal signal of constant amplitude and frequency higher than the highest instantaneous frequency of a video signal, and means for modulating the amplitude of the sinusoidal signal in accordance with the video signal to generate a signal containing no harmonic components.