Cathode ray tube system with strip chart recorder display format

Claim 3

The method recited in claim 1 wherein a plurality of measured variables are displayed in moving strip chart format on said cathode ray tube system by modulating the intensity of said electron beam in each scan line at a plurality of positions each representing the magnitude of one of said measured variables at a given time.

Claim 4

The method recited in claim 1 further comprising: modulating the intensity of said electron beam at the same scale line positions on each scan line to produce scale lines along said strip chart format, said electron beam being modulated at said scale line positions to a different intensity than the modulation at positions representing said measured variable so that the scale lines are readily distinguishable from said trend line.

Claim 5

The method recited in claim 1 further comprising: modulating the intensity of said electron beam in scan lines associated with particular samples to produce time lines across said strip chart format, said time lines being distinguished from said trend line by a different intensity of modulation of said electron beam. .[.5. The method recited in claim 1 further comprising the intensity of said electron beam in each scan line between a reference position and the position representing the magnitude of said measured variable to produce a display

Claim 6

which is brightened between a reference line and said trend line..]. 6. The method of graphically displaying a moving strip chart format on a cathode ray tube system having an electron beam which traverses the face of the tube along successive scan lines, said strip chart format representing successive values of an independent variable, and a plurality of stored, digitally encoded data signals representing measurements of a dependent variable, comprising: a first step of receiving data signals corresponding to the independent variable, a second step of storing said data signals, a third step of counting clock pulses beginning at the time when the electron beam is at a reference position, a fourth step of producing for each scan line a first output signal when said clock pulse count corresponds to said data signal for that scan line, a fifth step of modulating said electron beam to a first intensity as the electron beam is scanned from said reference position to a position corresponding to said output signal, a sixth step of modulating said electron beam to a second intensity at the occurrence of each of said first output signals, repeating the foregoing steps for the remaining raster scan lines, and repeating said third through sixth steps for a later raster frame, the intensity of said electron beam being modulated in the scan lines of said later raster frame at positions corresponding to the output signal at times later than the times of the output signal for the preceding raster frame, the occurrence times of said output signal being displaced with respect to the scan line on which it is displayed on said later raster frame, one extreme value of said output signal being deleted and one value

Claim 7

which is brightened between a reference line and said trend line..]. 6. The method of graphically displaying a moving strip chart format on a cathode ray tube system having an electron beam which traverses the face of the tube along successive scan lines, said strip chart format representing successive values of an independent variable, and a plurality of stored, digitally encoded data signals representing measurements of a dependent variable, comprising: a first step of receiving data signals corresponding to the independent variable, a second step of storing said data signals, a third step of counting clock pulses beginning at the time when the electron beam is at a reference position, a fourth step of producing for each scan line a first output signal when said clock pulse count corresponds to said data signal for that scan line, a fifth step of modulating said electron beam to a first intensity as the electron beam is scanned from said reference position to a position corresponding to said output signal, a sixth step of modulating said electron beam to a second intensity at the occurrence of each of said first output signals, repeating the foregoing steps for the remaining raster scan lines, and repeating said third through sixth steps for a later raster frame, the intensity of said electron beam being modulated in the scan lines of said later raster frame at positions corresponding to the output signal at times later than the times of the output signal for the preceding raster frame, the occurrence times of said output signal being displaced with respect to the scan line on which it is displayed on said later raster frame, one extreme value of said output signal being deleted and one value

Claim 8

being added at the other extreme. 7. The method recited in claim 6 wherein said system includes a color reproducing cathode ray tube and wherein each of said different intensities is represented by a different color on the

Claim 9

face of said cathode ray tube. 8. The method recited in claim 6 further comprising: a seventh step of producing a plurality of second output signals at predetermined clock count intervals, and an eighth step of modulating the electron beam to a preselected intensity at the occurrence of each of said second output signals to produce

Claim 10

vertical scale lines along said strip chart format. 9. The method recited in claim 8 further comprising: a ninth step of producing a third output signal at preselected intervals of said independent variable, a tenth step of storing said signal produced in the ninth step in proper sequence with said data for said dependent variable, and an eleventh step of modulating the electron beam to another preselected intensity to produce horizontal time lines on said strip chart format.

Claim 11

A graphic cathode ray tube display system for displaying stored digital data of a plurality of measured variables, said system having a raster scan line type electron beam positioning circuit and intensity modulating control circuit comprising: a source of clock pulses dividing said scan line into equal time increments, counter means for receiving said clock pulses including means for resetting said counter once during each scan line, a digital data storage device for storing data for each of said measured variables, the number of data for each variable corresponding to the number of displayed scan lines of said cathode ray tube display, means for selecting from storage a particular digital data prior to the beginning of each scan line, means for producing from said counter a first output when said counter reaches a count corresponding to said particular digital data, means responsive to said first output to modulate the intensity of the electron beam during each scan line thereby producing a trend line representing said measured variable, .[.and.]. means for updating said data storage device after the scanning of all of said scan lines, said data being displaced with respect to the scan line on which it is displayed on a subsequent scanning of said scan lines, one extreme data value being deleted and one data value being added at the other extreme.[...]..Iadd., means for producing from said counter a second output at the occurrence of a preselected reference count, a bistable device being set to one of its states upon the earlier occurrence of said first or second outputs and reset to the other of its states upon the later occurrence of said first or second outputs respectively, and means responsive to the output of said bistable device to modulate said beam with a different intensity corresponding to said reference digital

Claim 12

A graphic cathode ray tube display system for displaying stored digital data of a plurality of measured variables, said system having a raster scan line type electron beam positioning circuit and intensity modulating control circuit comprising: a source of clock pulses dividing said scan line into equal time increments, counter means for receiving said clock pulses including means for resetting said counter once during each scan line, a digital data storage device for storing data for each of said measured variables, the number of data for each variable corresponding to the number of displayed scan lines of said cathode ray tube display, means for selecting from storage a particular digital data prior to the beginning of each scan line, means for producing from said counter a first output when said counter reaches a count corresponding to said particular digital data, means responsive to said first output to modulate the intensity of the electron beam during each scan line thereby producing a trend line representing said measured variable, .[.and.]. means for updating said data storage device after the scanning of all of said scan lines, said data being displaced with respect to the scan line on which it is displayed on a subsequent scanning of said scan lines, one extreme data value being deleted and one data value being added at the other extreme.[...]..Iadd., means for producing from said counter a second output at the occurrence of a preselected reference count, a bistable device being set to one of its states upon the earlier occurrence of said first or second outputs and reset to the other of its states upon the later occurrence of said first or second outputs respectively, and means responsive to the output of said bistable device to modulate said beam with a different intensity corresponding to said reference digital

Claim 13

data. .Iaddend. 11. The system recited in claim 10 further comprising: means for producing from said counter a .[.second.]. .Iadd.third .Iaddend.output at predetermined count intervals for scaling each scan line, and means responsive to said .[.second.]. .Iadd.third .Iaddend.output for modulating the intensity of said electron beam at a different intensity level to produce scale lines readily distinguishable from said trend line.

Claim 14

The system recited in claim 10 further comprising: means for producing a .[.third.]. .Iadd.fourth .Iaddend.output during scanning of scan lines corresponding to particular data, and means responsive to said .[.third.]. .Iadd.fourth .Iaddend.output for modulating the intensity of said electron beam at a different intensity level to produce time lines readily distinguishable from said trend lines.

Claim 15

.[.13. The system recited in claim 10 further comprising: means for producing from said counter a fourth output at the occurrence of a preselected reference count, a bistable device being set to one of its states upon the earlier occurrence of said first or fourth outputs and reset to the other of its states upon the later occurrence of said first or fourth outputs respectively, and means responsive to the output of said bistable device to modulate said electron beam with a different intensity between said reference count and

Claim 16

said count corresponding to said particular digital data..]. 14. A graphic cathode ray tube display system for displaying stored digital data of a plurality of measured variables, said system having a raster scan line type electron beam positioning circuit and intensity modulating control circuit comprising: a source of clock pulses dividing said scan line into equal time increments, a first counter for receiving said clock pulses including means for resetting said counter once during each scan line, a digital data storage device for storing data for each of said measured variables, the number of data for each variable corresponding to the number of displayed scan lines of said cathode ray tube display, means for selecting from storage a particular digital data prior to the beginning of each scan line, a second counter for producing a first output when said second counter reaches a count corresponding to said particular digital data, means responsive to said first output to modulate the intensity of the electron beam during each scan line thereby producing a trend line representing said measured variable, .[.and.]. means for updating said data storage device after the scanning of all of said scan lines, said data being displaced with respect to the scan line on which it is displayed on a subsequent scanning of said scan lines, one extreme data value being deleted and one data value being added at the other extreme.[...]..Iadd., means for producing from said first counter a second output at the occurrence of a preselected reference count, a bistable device being set to one of its states upon the earlier occurrence of said first or second outputs and reset to the other of its states upon the latter occurrence of said first or second outputs respectively, and means responsive to the output of said bistable device to modulate said electron beam with a different intensity between said reference count and

Claim 17

said count corresponding to said particular digital data..]. 14. A graphic cathode ray tube display system for displaying stored digital data of a plurality of measured variables, said system having a raster scan line type electron beam positioning circuit and intensity modulating control circuit comprising: a source of clock pulses dividing said scan line into equal time increments, a first counter for receiving said clock pulses including means for resetting said counter once during each scan line, a digital data storage device for storing data for each of said measured variables, the number of data for each variable corresponding to the number of displayed scan lines of said cathode ray tube display, means for selecting from storage a particular digital data prior to the beginning of each scan line, a second counter for producing a first output when said second counter reaches a count corresponding to said particular digital data, means responsive to said first output to modulate the intensity of the electron beam during each scan line thereby producing a trend line representing said measured variable, .[.and.]. means for updating said data storage device after the scanning of all of said scan lines, said data being displaced with respect to the scan line on which it is displayed on a subsequent scanning of said scan lines, one extreme data value being deleted and one data value being added at the other extreme.[...]..Iadd., means for producing from said first counter a second output at the occurrence of a preselected reference count, a bistable device being set to one of its states upon the earlier occurrence of said first or second outputs and reset to the other of its states upon the latter occurrence of said first or second outputs respectively, and means responsive to the output of said bistable device to modulate said electron beam with a different intensity between said reference count and

Claim 18

said count corresponding to said particular digital data. .Iaddend. 15. The system recited in claim 14 further comprising: means for producing from said first counter a .[.second.]. .Iadd.third .Iaddend.output at predetermined count intervals for scaling each scan line, and means responsive to .[.second.]. .Iadd.third .Iaddend.output for modulating the intensity of said electron beam at a different intensity level to

Claim 19

produce scale lines readily distinguishable from said trend line. 16. The system recited in claim 14 further comprising: means for producing a .[.third.]. .Iadd.fourth .Iaddend.output during scanning of scan lines corresponding to particular data, and means responsive to said .[.third.]. .Iadd.fourth .Iaddend.output for modulating the intensity of said electron beam at a different intensity level to produce time lines readily distinguishable from said trend lines. .[.17. The system recited in claim 14 further comprising: means for producing from said counter a fourth output at the occurrence of a preselected reference count, a bistable device being set to one of its states upon the earlier occurrence of said first or fourth outputs and reset to the other of its states upon the later occurrence of said first or fourth outputs, respectively, and means responsive to the output of said bistable device to modulate said electron beam with a different intensity between reference count and said count corresponding to said particular digital data..].