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Patent Agency Ranking
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公开(公告)号：US3449724A
公开(公告)日：1969-06-10
申请号：US3449724D
申请日：1966-09-12
Applicant: IBM
Inventor： BOLAND LAWRENCE J , MIZZI JOHN V , SMITH JOHN W
CPC classification number: G06F13/1631 , G06F13/18
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公开(公告)号：US3449723A
公开(公告)日：1969-06-10
申请号：US3449723D
申请日：1966-09-12
Applicant: IBM
Inventor： ANDERSON DAVID W , MIZZI JOHN V , SPARACIO FRANCIS J
CPC classification number: G06F13/1631 , G06F13/18
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公开(公告)号：CA1232950A
公开(公告)日：1988-02-16
申请号：CA469466
申请日：1984-12-06
Applicant: IBM
Inventor： CURTIS HUNTINGTON W , DODGE FREDERICK A , FRANCIS DAVID B , MIZZI JOHN V
Abstract: SYSTEM FOR PLOTTING A MINIATURE ECG A method of printing an analog waveform having a time variable, such as an ECG by first converting the analog waveform into a time sequence of digitally expressed values, forming predetermined groups of digital data and then determining maximum and minimum amplitude values of the digital data within the groups. These values are stored in a line buffer memory. A recording medium advances past a transversely oriented linear array of discrete recording elements, such as a linear array dot printhead. The serial stored values are read out in parallel to each of the recording elements, with the elements actuated in parallel by the stored values at an initial time and for time durations for each element that is a function of the stored maximum and minimum amplitude values for that element. The waveform is recorded as a series of appropriately placed short parallel longitudinal lines to form in aggregate a transverse waveform display on the recording medium.
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