Display apparatus for a registration control system where movement is represented by encoder pulses

Claim 2

In a system for controlling the cyclical application of work at successive work applying stations to a moving work receiving material at repeat intervals and such that the work applied at the successive stations has a desired registration condition and wherein a reference pulse is generated to mark the beginning of each cycle at a work applying station and a scanner pulse is generated at each work applying station in each cycle to represent the point of application of the work to the work receiving material at such station, apparatus for displaying such scanner pulses to facilitate set up, comprising a display device having a display screen and having first and second deflection means for controlling deflection along respective first and second coordinate axes on said display screen, said second deflection means being connectable to receive said scanner pulses during set up of the system, encoder means for coupling with work receiving material for generating encoder pulses as a function of successive increments of movement thereof to subdivide the repeat intervals, a counter deflection generator having a counter input connected to said encoder means for counting of encoder pulses and having an output connected with said first deflection means for producing uniform deflection along said first coordinate axis of the display screen as a function of movement of said work receiving material, and having a counter cycle control input for initiating a counting cycle of said deflection generator and responsive to a reference pulse marking the beginning of a cycle at a work applying station to initiate a counting cycle of the deflection generator, said deflection generator having a first counting condition wherein a given maximum deflection along the first deflection axis is produced in response to counting of a first number of encoder pulses corresponding to at least a substantial proportion of a repeat interval between successive appLications of work at a work applying station and having a second counting condition wherein such given maximum deflection along said first deflection axis is produced in response to counting of a second number of encoder pulses equal to a fraction of said first number, and switch means connected with said deflection generator and operable to selectively place said deflection generator in said first counting condition to display substantially all of the scanner pulses occurring during successive repeat intervals and thereby to facilitate selection of a desired scanner pulse and in said second counting condition to display a scanner pulse occurring in a selected portion of successive repeat intervals, whereby the system can be adjusted to display a selected scanner pulse on an enlarged scale on said display screen.

Claim 3

In a system according to claim 1, a blanking circuit connected with said display device and operable in response to a blanking signal to prevent the display of scanner pulses supplied to said second deflection means, and a gate circuit having an input connected to said deflection generator and an output connected to said blanking circuit and operable in response to count values attained by said deflection generator in said first and second counting conditions thereof to supply said blanking signal to said display.

Claim 4

In a system according to claim 2, said deflection generator in said first counting condition having a series of counting stages including a first counting stage and second counting stages, and in said second counting condition including said second counting stages but excluding said first counting stage, and said gate circuit being responsive to a common condition of the second counting stages only in the first and second counting conditions of said deflection generator to produce said blanking signal, so as to emit the blanking signal in the second condition of the deflection generator regardless of the count value registered by the first counting stage.

Claim 5

In a system according to claim 1, said display device having first and second separate display areas on said display region and having respective second deflection means for controlling deflection relative to second coordinate axes with respect to the first and second display areas, respectively, and said first deflection means conjointly controlling deflection relative to first coordinate axes of both of said display areas to produce a common scale for both display areas, and first and second scanner means connected with the respective second deflection means to provide for display of first scanner signals from the first scanner means on the first display area and for display of second scanner signals from the second scanner means on the second display area concurrently and on a common scale with respect to the first coordinate axis of said display region.

Claim 6

In a system for controlling the cyclical application of work at successive work applying stations to a moving web at repeat lengths along the web such that the work applied at the successive stations has a desired registration condition and wherein a reference pulse is generated in each cycle of operation at a work applying station, and wherein an inspection zone is defined in relation to such reference pulse and corresponds to the range of permissible registration error, and wherein scanner pulses are generated at each work applying station in each cycle of operation as a function of the instantaneous position of the web relative to such station, apparatus for displaying such scanner pulses to facilitate selection of a scanner pulse to occur within said inspection zone during set up, and comprising a display device having a display screen and having horizontal and vertical deflection means for controlling deflection along respective horizontal and vertical coordinate axes on said display screen, said vertical deflection means being connectable to receive said scanner pulses during set up of the system, ENCODER means for coupling with the movement of the web for generating encoder pulses as a function of successive increments of movement thereof and thus to incrementally subdivide each repeat length of the web, a counter deflection generator having a counter with a counter input connected to said encoder means for counting of encoder pulses, and having an output connected with said horizontal deflection means for producing uniform deflection along said horizontal coordinate axis of the display screen in step with the movement of said web, said deflection generator having a first counting condition wherein a given maximum deflection along the horizontal deflection axis is produced in response to counting of a first number of encoder pulses corresponding to at least a substantial proportion of a repeat length between successive applications of work at a work applying station and having a second counting condition wherein such given maximum deflection along said horizontal deflection axis is produced in response to counting of a second number of encoder pulses equal to a fraction of said first number and substantially corresponding to the extent of said inspection zone, means connected with said deflection generator and operable to selectively place said deflection generator in said first counting condition to display substantially all of the scanner pulses occurring during successive repeat intervals and thereby to facilitate selection of a desired scanner pulse and operable to place said deflection generator in said second counting condition to display scanner pulses occurring in a selected portion of successive repeat intervals substantially corresponding to the extent of said inspection zone, whereby the system can be adjusted to display essentially only those scanner pulses occurring within the inspection zone, and means responsive to the encoder pulses and to the reference pulses and automatically operable in the second counting condition to initiate deflection relative to said horizontal coordinate axis such that the midpoint of the inspection zone essentially coincides with the midpoint along said horizontal coordinate axis.

Claim 7

In a system for controlling the cyclical application of work at successive work applying stations to a moving web at repeat lengths along the web such that the work applied at the successive stations has a desired registration condition and wherein a reference pulse is generated in each cycle of operation at a work applying station, and wherein an inspection zone is defined in relation to such reference pulse and corresponds to the range of permissible registration error, and wherein scanner pulses are generated at each work applying station in each cycle of operation as a function of the instantaneous position of the web relative to such station, apparatus for displaying such scanner pulses to facilitate selection of a scanner pulse to occur within said inspection zone during set up, and comprising a display device having a display screen and having horizontal and vertical deflection means for controlling deflection along respective horizontal and vertical coordinate axes on said display screen, said vertical deflection means being connectable to receive said scanner pulses during set up of the system, ENCODER means for coupling with the movement of the web for generating encoder pulses as a function of successive increments of movement thereof and thus to incrementally subdivide each repeat length of the web, a counter deflection generator having a counter with a counter input connected to said encoder means for counting of encoder pulses, and having an output connected with said horizontal deflection means for producing uniform deflection along said horizontal coordinate axis of the display screen in step with the movement of said web, said deflection generator having a first counting condition wherein a given maximum deflection along the horizontal deflection axis is produced in response to counting of a first number of encoder pulses corresponding to at least a substantial proportion of a repeat length between successive applications of work at a work applying station and having a second counting condition wherein such given maximum deflection along said horizontal deflection axis is produced in response to counting of a second number of encoder pulses equal to a fraction of said first number and substantially corresponding to the extent of said inspection zone, means connected with said deflection generator and operable to selectively place said deflection generator in said first counting condition to display substantially all of the scanner pulses occurring during successive repeat intervals and thereby to facilitate selection of a desired scanner pulse and operable to place said deflection generator in said second counting condition to display scanner pulses occurring in a selected portion of successive repeat intervals substantially corresponding to the extent of said inspection zone, whereby the system can be adjusted to display essentially only those scanner pulses occurring within the inspection zone, and means responsive to the encoder pulses and to the reference pulses and automatically operable in the second counting condition to initiate deflection relative to said horizontal coordinate axis such that the midpoint of the inspection zone essentially coincides with the midpoint along said horizontal coordinate axis.

Claim 8

In a system according to claim 5, a blanking circuit connected with said display device and operable in response to a blanking signal to prevent the display of scanner pulses supplied to said vertical deflection means, and a gate circuit having an input connected to said counter of said deflection generator and having an output connected to said blanking circuit and operable in response to respective first and second predetermined count values attained by said counter of said deflection generator in said first and second counting conditions thereof to control the supply of said blanking signal to said display, said first predetermined count value being less than the number of encoder pulses in a repeat length to insure that said gate circuit resets said counter of said deflection generator to an initial count value in said first counting condition.

Claim 9

In a system according to claim 6, said counter of said deflection generator in said first counting condition having a series of counting stages including a first counting stage and second counting stages, and in said second counting condition including said second counting stages but excluding said first counting stage, and said gate circuit being responsive to a common count condition of the second counting stages in the first and second counting conditions of said counter of said deflection generator to produce said blanking signal, so as to emit the blanking signal in the second counting condition of the deflection generator regardless of the count value registered by the first counting stage, the common count condition of said second counting stages representing a count value corresponding approximately to the number of encoder pulses equal to the inspection zone.

Claim 10

In a system according to claim 5, said display device having first and second separate Display areas on said display region and having respective vertical deflection means for controlling deflection relative to vertical coordinate axes with respect to the first and second display areas, respectively, and said horizontal deflection means conjointly controlling deflection relative to horizontal coordinate axes of both of said display areas to produce a common scale for both display areas, and first and second scanner means connected with the respective vertical deflection means to provide for display of first scanner signals from the first scanner means on the first display area and for display of second scanner signals from the second scanner means on the second display area concurrently and on a common scale with respect to the horizontal coordinate axis of said display region which is keyed to the individual increments of movement of the web.

Claim 11

In a web system where set up is effected by selecting suitable marks applied to the web at successive printing stations and wherein the system is operable to generate a substantial number of uniform encoder pulses in each printing cycle such that each encoder pulse represents a uniform individual increment of movement of the web corresponding to a fraction of a repeat length of the printed web, and to generate a reference pulse to represent a predetermined point in each repeat cycle during continuous movement of the web during a set up operation, and wherein the web system is operable to provide an inspection zone generally representing the range of permissible phase values for a selected scanner pulse and wherein the midpoint of the inspection zone is to occur a predetermined number of encoder pulses after the beginning of an inspection zone, apparatus for displaying such scanner pulses to facilitate selection of a scanner pulse during set up of the system, said apparatus comprising a display device having a display screen and having first and second deflection means for controlling deflection along respective first and second coordinate axes on said display screen, said second deflection means being connectable to receive said scanner pulses during set up of the system, a counter deflection generator responsive to encoder pulses and operable in a first counting condition to control said first deflection means to display at least a substantial proportion of a repeat length of the web, and operable in a second counting condition to control said first deflection means to display essentially only a fraction of the repeat length corresponding to the length of the inspection zone, and delay counter means controlling said display device and responsive to said reference pulse to initiate display of scanner pulses in the second counting condition in each repeat cycle such that the midpoint of the inspection zone will always occur substantially at a predetermined point on said display screen.

Claim 12

In a web system where set up is effected by selecting suitable marks applied to the web at successive printing stations and wherein the system is operable to generate a substantial number of uniform encoder pulses in each printing cycle such that each encoder pulse represents a uniform individual increment of movement of the web corresponding to a fraction of a repeat length of the printed web, and to generate a reference pulse to represent a predetermined point in each repeat cycle during continuous movement of the web during a set up operation, and wherein the web system is operable to provide an inspection zone generally representing the range of permissible phase values for a selected scanner pulse and wherein the midpoint of the inspection zone is to occur a predetermined number of encoder pulses after the beginning of an inspection zone, apparatus for displaying such scanner pulses to facilitate selection of a scanner pulse during set up of the system, said apparatus comprising a display device having a display screen and having first and second deflection means for controlling deflection along respective first and second coordinate axes on said display screen, said second deflection means being connectable to receive said scanner pulses during set up of the system, a counter deflection generator responsive to encoder pulses and operable in a first counting condition to control said first deflection means to display at least a substantial proportion of a repeat length of the web, and operable in a second counting condition to control said first deflection means to display essentially only a fraction of the repeat length corresponding to the length of the inspection zone, and delay counter means controlling said display device and responsive to said reference pulse to initiate display of scanner pulses in the second counting condition in each repeat cycle such that the midpoint of the inspection zone will always occur substantially at a predetermined point on said display screen.

Claim 13

In a system according to claim 9, said delay counter means introducing a delaying count of encoder pulses equal to the total number of encoder pulses in a repeat length less said predetermined number of encoder pulses such that display is initiated in the first and second counting conditions substantially at the beginning of the inspection zone, and such that the midpoint of the inspection zone corresponds substantially to a midpoint with respect to the first coordinate axis in said second counting condition.