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:
Dec. 25, 1979
Filed:
Jun. 28, 1977
Hitachi, Ltd., , JP;
Abstract
The data processing apparatus according to this invention comprises a microprocessor and a dot printer. The printer is of such a type that the printing paper is stepwise advanced each time a line of characters are printed. The analog signal from the detector of a chromatograph is converted to a corresponding digital signal. A block of data values to be printed on one line, separated from the digital signal corresponding to the waveform pattern varying with time, is stored in a print buffer memory. The stored data values are printed out in dot matrix form. The emptied buffer memory then stores another block of data values to be plotted on the next line. Thereafter, the plotting and storing operations are repeated until a chromatogram is completed. The concentrations of the components corresponding to the peaks of the chromatogram are also calculated by processing the digital signal and the result of the calculation is printed out in the form of characters each composed of plural dots by the same printer. Thus, the chromatogram consisting of the respective component peaks and the annotating characters representing the calculated concentrations of the components can be printed on the same paper by the same printing means.