The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 1978
Filed:
Apr. 02, 1976
Applicant:
Inventors:
Heijiro Hayami, Kawasaki, JA;
Hiroyoshi Tsuchiya, Kawasaki, JA;
Kunio Yoshida, Kawasaki, JA;
Yukifumi Tsuda, Kawasaki, JA;
Yoshimitsu Kanno, Kawasaki, JA;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G01G / ;
U.S. Cl.
CPC ...
3461 / ; 358280 ; 358296 ;
Abstract
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.