Patent EP0156099A2 successfully refreshed from Google Patents.
EP0156099A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method of and apparatus for data recording
Assignee: Panametrics LLC
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Filing: 1980-05-02
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Granted: —
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Expires: 2000-05-02
Abstract
Abstract This disclosure is concerned with a novel digital multipoint recorder that is microprocessor controlled and enables impact printing from in back of the recorder paper to provide a front visible flat print out of pages of on-line running summary data suited for operating viewing in industrial and similar locations, and providing a record for direct use in reports and logs. The apparatus includes a technique for automatically ensuring a proper zero level of the analog to digital conversion circuit contained therein.
Inventors
- 👤 Robert E. Goldschmidt
- 👤 Charles C. Ku
- 👤 David A. Townzen
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 13:42
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/02; G01K7/10; G01K7/12; G01K7/13; G01D; G01D15/00; G01D15/20; G01D15/28; G01D15/30; G01D18/00; G01D18/002; G01D18/006; G01D3/00; G01D3/028; G01D3/032; G01D3/036; G01D3/0365; G01D9/00; G01D9/28; G01D9/32; G01D9/34; G01K1/00; G01K1/02; G01K1/026
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
202 words
Printing apparatus for use with impact-sensitive paper comprising means for mounting the paper as a continuous longitudinally extending substantially flat sheet to enable direct viewing of one face of the sheet, print head means disposed at a predetermined location on the other face of the sheet, means for causing the print head means to impact against said other face along transverse lines to produce visible printing on said one face, means for moving the paper longitudinally after a transverse line is printed, sensing means for monitoring electrical signals to be recorded and generating digital voltage data corresponding to the same, characterised in that said sensing means is provided with means for correcting for zero offset of the digital data generated from said analog inputs comprising means for periodically connecting the input to one of known zero voltage, means for storing a multiplicity of the resulting digital values, means for averaging the values thus stored to determine an offset value, and means for digitally subtracting the same from all other input voltages from the sensing means when connecting said input, and data acquisition means comprising microprocessor means for receiving said digital voltage data and converting the same into desired engineering data for printing.
Claim 2
Dependent Claim
202 words
Printing apparatus for use with impact-sensitive paper comprising means for mounting the paper as a continuous longitudinally extending substantially flat sheet to enable direct viewing of one face of the sheet, print head means disposed at a predetermined location on the other face of the sheet, means for causing the print head means to impact against said other face along transverse lines to produce visible printing on said one face, means for moving the paper longitudinally after a transverse line is printed, sensing means for monitoring electrical signals to be recorded and generating digital voltage data corresponding to the same, characterised in that said sensing means is provided with means for correcting for zero offset of the digital data generated from said analog inputs comprising means for periodically connecting the input to one of known zero voltage, means for storing a multiplicity of the resulting digital values, means for averaging the values thus stored to determine an offset value, and means for digitally subtracting the same from all other input voltages from the sensing means when connecting said input, and data acquisition means comprising microprocessor means for receiving said digital voltage data and converting the same into desired engineering data for printing.
Claim 3
Dependent Claim
84 words
Apparatus as claimed in claim 1 wherein said microprocessor means further comprises keyboard means for header and other inputs and non-volatile random access memory means for storing user programmed parameters such as type of input, frequency of printing, acceptable limits of data and identifying headers to be printed at what will become the top of a page formed by a sheet of predetermined length of fanfold or similar paper, thereby to provide a data summary page suitable for direct report use and the like.
Claim 4
Dependent Claim
38 words
Apparatus as claimed in claim 2 characterised in that the microprocessor means is further provided with further random access memory means to store real time data being processed from analog inputs from said sensing means to the apparatus.
Claim 5
Dependent Claim
54 words
Apparatus as claimed in any preceding claim characterised in that the said sensing means comprises a plurality of temperature sensing elements such as thermocouples, said elements being connected to a multiplicity of printed circuit board mounted screw terminals which are maintained with substantial equality of temperatures by a central bar of high thermal conductivity.
Claim 6
Dependent Claim
103 words
Printing apparatus as claimed in any preceding claim, characterised by optical sensing means movable with the said print bead means, and cooperative with transverse optical fence means comprising a central portion having alternating transparent and opaque portions for enabling optical sensing of the location of the print head means relative to the position of the sheet to be printed, and end portions respectively comprising a transparent portion, and an opaque portion for enabling optical sensing determination that the print head means is at an end of the printed portion of a transverse line along said sheet and at which margin of the sheet.
Claim 7
Dependent Claim
66 words
Printing apparatus as claimed in claim 5 characterised by stepping motor means for longitudinally advancing the paper sheet one line to the next, and pulse-width modulated drive circuit means for operating the stepping motor means with lower power consumption when the same is stationary than when moving, thereby to permit the same to be operated at higher than rated torque while not exceeding rated time-averaged power.
Claim 8
Dependent Claim
92 words
Printing apparatus as claimed in claim 6 characterised by means for moving the paper substantially vertically upwardly after a transverse line is printed to permit immediate viewing of the data just printed, the data being printed to enable textual reading thereof from said one face from top to bottom of the sheet, and means for thereafter guiding the sheet downwardly and to a receiving tray inclined at an acute angle to the horizontal to enable the automatic folding storage of the paper as it drops a limited vertical distance into the tray.
References Cited (Backward Citations)
No citation records indexed.
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