Display device including roll and crawl capabilities

Claim 2

In a continuous data display system of the type wherein a memory stores data in the form of characters in predetermined lines of characters and there is a means for addressing said memory for reading characters out of said memory at a time so that they are displayed at locations on the face of a continuously scanned display system corresponding to the locations in said memory, means for providing a continuously moving effect to the data being displayed comprising: means for periodically generating an address-incrementing signal in synchronism with said continuously scanning display system, and means for applying said address-incrementing signal to said means for addressing said memory for Reading a character out of said memory at a time to be displayed by said continuously scanning display system at a location displaced from the location of the character in said memory.

Claim 3

In a continuous display system as recited in claim 1 wherein there is provided a means for blanking the first and last display line locations of said continuously scanning display system and the characters read out of said memory by said means for addressing said memory are displaced to line locations which are different than the line locations in memory from which they are read out.

Claim 4

In a continuous display system as recited in claim 1 wherein there is provided a means for blanking the first and last character position of each display line of said continuously scanning display system and the characters read out of said memory by said means for addressing said memory are displaced to locations along a line which are different than the line locations in memory from which they are read out.

Claim 5

In a continuous data display system as recited in claim 2 wherein there is included means for recurrently and successively delaying a display of lines of data on said display device face by varying intervals of time until a predetermined interval has been reached.

Claim 6

In a continuous data display system as recited in claim 3 wherein there is included means for recurrently and successively delaying a display of characters of data on each line of data on said display device face by decreasing intervals of time until a predetermined interval has been reached.

Claim 7

In a continuous data display system of the type wherein a memory stores data in the form of characters and there is provided means for displaying said characters on the face of a continuously scanned display tube at address locations corresponding to those in memory, said means for displaying including line counter means for indicating the line address of a character, a character counter means for indicating the address of a character along a line, first means for altering the count in said line counter means in synchronism with the display of lines of data by said display device, second means for altering the count of said character counter in synchronism with the display of characters along a line by said display device, and read means responsive to the counts of said line counter means and said character counter means for addressing said memory for reading characters out of said memory for display at locations on the face of said display device corresponding to locations in said memory, means for providing a continuously moving effect to the data being displayed comprising: means for periodically generating an address-incrementing signal in synchronism with said continuously scanning display system, and means for applying said address-incrementing signal to one of said line and character counter means to cause the readout of characters from said memory by said read means at a time to be displayed at a location by said continuously scanning display system which is displaced from the location in said memory.

Claim 8

In a continuous data display system of the type wherein a memory stores data in the form of characters and there is provided means for displaying said characters on the face of a continuously scanned display tube at address locations corresponding to those in memory, said means for displaying including line counter means for indicating the line address of a character, a character counter means for indicating the address of a character along a line, first means for altering the count in said line counter means in synchronism with the display of lines of data by said display device, second means for altering the count of said character counter in synchronism with the display of characters along a line by said display device, and read means responsive to the counts of said line counter means and said character counter means for addressing said memory for reading characters out of said memory for display at locations on the face of said display device corresponding to locations in said memory, means for providing a continuously moving effect to the data being displayed comprising: means for periodically generating an address-incrementing signal in synchronism with said continuously scanning display system, and means for applying said address-incrementing signal to one of said line and character counter means to cause the readout of characters from said memory by said read means at a time to be displayed at a location by said continuously scanning display system which is displaced from the location in said memory.

Claim 9

In a continuous data display system as recited in claim 6 wherein there is provided a delay means for recurrently and successively delaying the initiation of operation of one of said first and second means for altering the count for decreasing intervals of time until a predetermined minimum interval has been attained for delaying the display by said display device and thereby preventing a jumpy display appearance.

Claim 10

In a continuous data display system as recited in claim 6 wherein there is provided a means for blanking the first and last display line locations of said continuously scanning display system and the characters read out of said memory are displayed by said display system on line locations which are displaced from the line locations of readout from memory.

Claim 11

In a continuous data display system as recited in claim 6 wherein there is provided a means for blanking The first and last character position of each display line of said continuously scanning display system and the characters read out of said memory are displayed at locations along a line which are different than the line locations in memory from which they are read.

Claim 12

In a continuous display system as recited in claim 6 wherein said means for periodically generating an address-incrementing signal in synchronism with said continuously scanning display system includes delay reference counter means, means for periodically incrementing the count of said delay reference counter means by a predetermined amount in synchronism with said continuously scanning display, and means responsive to said delay reference counter means recycling from a full count to an initial count for generating an address-incrementing signal.

Claim 13

In a continuous display system as recited in claim 7 wherein said delay means includes a delay reference counter means, means for periodically incrementing the count of said delay reference counter means by a predetermined amount in synchronism with said continuously scanning display, a delay counter means, means for continuously advancing the count of said delay counter means in synchronism with said continuously scanning display, means for entering the count in said delay reference counter means as an initial count into said delay counter means in synchronism with said continuously scanning display, and means for initiating the operation of one of said first and second counter means responsive to output from said delay counter means when it has a full count.

Claim 14

In a continuous display system as recited in claim 6 wherein there is included a means for generating repetitively, recurrently and in synchronism with said display, delay signals having delay intervals varying from a predetermined maximum to a minimum value, and means for delaying the start of operation of said second means for altering the count of said character counter means in response to each of said delay signals to thereby prevent a jumpy display.

Claim 15

In a continuous display system as recited in claim 6 wherein there is included a means for generating repetitively, recurrently and in synchronism with said display, delay signals having delay intervals varying from a predetermined maximum to a minimum value, and said first means for altering the count of said line counter means in response to each of said delay signals to thereby prevent a jumpy display.

Claim 16

In a continuous data display system of the type which operates to provide a scanning raster on the face of a display device in response to horizontal sync signals being provided for each line of a scanning raster and vertical sync signals for each frame of a scanning raster, a memory stores data in the form of characters at address locations corresponding to address locations on the face of said display device on which they are displayed in the form of lines of data, and there is provided a means synchronized by said vertical and horizontal sync signals for reading characters out of said memory to be displayed on the face of said display device, said means for reading including line counter means for indicating the line address of a character, a character counter means for indicating the address of a character along a line, first means for applying pulses altering the count in said line counter means synchronized by said horizontal sync signals, second means for applying pulses for altering the count in said character counter means synchronized by said horizontal sync signals, display delay counter means responsive to the occurrence of a vertical sync signal and horizontal sync signals for delaying the application of pulses by said first and second means to said respective line and character counter means until it has reached its full count capacity, and read means responsive to the counts of said line counter means and said character counter means for readiNg characters out of said memory for display at locations on the face of said display device corresponding to locations in said memory, means for providing a continuously moving effect to the data being displayed comprising: delay reference counter means, means for periodically incrementing the count of said delay reference counter means by a predetermined amount for each vertical sync signal, means responsive to said delay reference counter means attaining a full count for generating an address-incrementing signal, and means for applying said address-incrementing signal to said line counter means to increment its address to cause readout of characters from said memory at a time to be displayed on a line location which is different from the line location in memory.

Claim 17

In a continuous data display system of the type which operates to provide a scanning raster on the face of a display device in response to horizontal sync signals being provided for each line of a scanning raster and vertical sync signals for each frame of a scanning raster, a memory stores data in the form of characters at address locations corresponding to address locations on the face of said display device on which they are displayed in the form of lines of data, and there is provided a means synchronized by said vertical and horizontal sync signals for reading characters out of said memory to be displayed on the face of said display device, said means for reading including line counter means for indicating the line address of a character, a character counter means for indicating the address of a character along a line, first means for applying pulses altering the count in said line counter means synchronized by said horizontal sync signals, second means for applying pulses for altering the count in said character counter means synchronized by said horizontal sync signals, display delay counter means responsive to the occurrence of a vertical sync signal and horizontal sync signals for delaying the application of pulses by said first and second means to said respective line and character counter means until it has reached its full count capacity, and read means responsive to the counts of said line counter means and said character counter means for readiNg characters out of said memory for display at locations on the face of said display device corresponding to locations in said memory, means for providing a continuously moving effect to the data being displayed comprising: delay reference counter means, means for periodically incrementing the count of said delay reference counter means by a predetermined amount for each vertical sync signal, means responsive to said delay reference counter means attaining a full count for generating an address-incrementing signal, and means for applying said address-incrementing signal to said line counter means to increment its address to cause readout of characters from said memory at a time to be displayed on a line location which is different from the line location in memory.

Claim 18

In a continuous data display system as recited in claim 14 wherein said means for periodically incrementing the count of said delay reference counter means includes a programmable counter means, means for establishing the count capacity of said programmable counter means, means for applying pulses to be counted to both said programmable counter means and said delay reference counter means in response to a vertical sync pulse, and means for terminating the application of pulses by said means for applying pulses responsive to said programmable counter means attaining a full count.

Claim 19

In a continuous data display system as recited in claim 14 wherein there is included means for delaying the application of pulses by said first means for applying pulses for altering the count in said line counter means, said means comprising a delay counter means, means for transferring the count of said delay reference counter means into said delay counter means in response to each vertical sync pulse, means for applying pulses responsive to horizontal sync pulses to said delay counter to cause it to increase its count, and means responsive to said delay counter means attaining a full count for enabling the application of pulses by said first means for applying pulses to said line counter means.

Claim 20

In a continuous data display system as recited in claim 14 wherein there is included a means for blanking the first and last line positions of said display device including: a blanking counter means having the same count capacity as said delay counter means, means for applying pulses responsive to horizontal sync pulses to said blanking counter to advance its count, flip-flop means having a first state during which it produces a blanking signal output and a second state during which it does not produce an output, means responsive to said blanking counter means attaining its full count for driving said flip-flop means to its second state, substitute row-column counter means for indicating a count of the number of lines of data which are being displayed on said display device face, and means responsive to said substitute row-column counter means indicating the count of the last display line of data on said display device face for driving said flip-flop means to its first state.

Claim 21

In a continuous display system as recited in claim 17 wherein there is included means for alternately writing data from a data source into memory during the blanking of the last line of data on said display device face or writing null signals into said memory during said blanking of the last line.

Claim 22

In a continuous display system as recited in claim 17 wherein there is included means for sensing an insufficient data flow into said memory and producing a pause signal, and means responsive to said pause signal to hold further operation of said delay reference counter and delay counter until said pause signal terminates.

Claim 23

In a continuous data display system of the type which operates to provide a scanning raster on the face of a display device in response to horizontal sync signals being provided for each line of a scanning raster and vertical Sync signals for each frame of a scanning raster, a memory stores data in the form of characters at address locations corresponding to address locations on the face of said display device on which they are displayed in the form of lines of data, and there is provided a means synchronized by said vertical and horizontal sync signals for reading characters out of said memory to be displayed on the face of said display device, said means for reading including line counter means for indicating the line address of a character, a character counter means for indicating the address of a character along a line, first means for applying pulses altering the count in said line counter means synchronized by said horizontal sync signals, second means for applying pulses for altering the count in said character counter means synchronized by said horizontal sync signals, display delay counter means responsive to the occurrence of a vertical sync signal and horizontal sync signals for delaying the application of pulses by said first and second means to said respective line and character counter means until it has reached its full count capacity, and read means responsive to the counts of said line counter means and said character counter means for reading characters out of said memory for display at locations on the face of said display device corresponding to locations in said memory, means for providing a continuously moving effect to the data being displayed comprising: delay reference counter means, means for periodically incrementing the count of said delay reference counter means by a predetermined amount for each horizontal sync signal, means responsive to said delay reference counter means attaining a full count for generating an address-incrementing signal, and means for applying said address-incrementing signal to said character counter means to increment its address to cause readout of characters from said memory at a time to be displayed on a line location which is different from the line location in memory.

Claim 24

In a continuous data display system of the type which operates to provide a scanning raster on the face of a display device in response to horizontal sync signals being provided for each line of a scanning raster and vertical Sync signals for each frame of a scanning raster, a memory stores data in the form of characters at address locations corresponding to address locations on the face of said display device on which they are displayed in the form of lines of data, and there is provided a means synchronized by said vertical and horizontal sync signals for reading characters out of said memory to be displayed on the face of said display device, said means for reading including line counter means for indicating the line address of a character, a character counter means for indicating the address of a character along a line, first means for applying pulses altering the count in said line counter means synchronized by said horizontal sync signals, second means for applying pulses for altering the count in said character counter means synchronized by said horizontal sync signals, display delay counter means responsive to the occurrence of a vertical sync signal and horizontal sync signals for delaying the application of pulses by said first and second means to said respective line and character counter means until it has reached its full count capacity, and read means responsive to the counts of said line counter means and said character counter means for reading characters out of said memory for display at locations on the face of said display device corresponding to locations in said memory, means for providing a continuously moving effect to the data being displayed comprising: delay reference counter means, means for periodically incrementing the count of said delay reference counter means by a predetermined amount for each horizontal sync signal, means responsive to said delay reference counter means attaining a full count for generating an address-incrementing signal, and means for applying said address-incrementing signal to said character counter means to increment its address to cause readout of characters from said memory at a time to be displayed on a line location which is different from the line location in memory.

Claim 25

In a continuous data display system as recited in claim 20 where said means for periodically incrementing the count of said delay reference counter means includes a programmable counter means, means for establishing the count capacity of said programable counter means, means for generating clock pulse signals in response to horizontal and vertical sync signals, means for applying said clock pulses to be counted to both said programmable counter means and said delay reference counter means, and means for terminating the application of pulses by said means for generating clock pulses responsive to said programmable counter means attaining a full count.

Claim 26

In a continuous data display system as recited in claim 20 wherein there is included means for delaying the application of pulses by said first means for applying pulses for altering the count in said character counter means, said means comprising a delay counter means, means for transferring the count of said delay reference counter means into said delay counter means in response to each horizontal sync pulse, means for applying said clock pulses to said delay counter to cause it to increase its count, and means responsive to said delay counter means attaining a full count for enabling the application of pulses by said first means for applying pulses to said character counter means.

Claim 27

In a continuous data display system as recited in claim 20 wherein there is included a means for blanking the first and last character positions on each line displayed by said display device including: a blanking counter means having the same count capacity as said delay counter means, means for applying clock pulses to said blanking counter to advance its count, flip-flop means having a first state during which it produces a blanking signal output and a second state during which it does not produce an output, means responsive to said blanking counter means attaining its full count for driving said flip-flop means to its second state, substitute row-column counter means for indicating a count of the number of characters of data which are being displayed on each line on said display device face, and means responsive to said substitute row-column counter means indicating the count of the last character on a line of data on said display device face for driving said flip-flop means to its first state.

Claim 28

In a continuous data display system of the type which operates to provide a scanning raster on the face of a display device in response to horizontal sync signals being provided for each line of a scanning raster and vertical sync signals for each frame of a scanning raster, a memory stores data in the form of characters at address locations corresponding to address locations on the face of said display device on which they are displayed in the form of lines of data, and there is provided a means synchronized by said vertical and horizontal sync signals for reading characters out of said memory to be displayed on the face of said display device, said means for reading including line counter means for indicating the line address of a character, a character counter means for indicating the address of a character along a line, first means for applying pulses altering the count in said line counter means synchronized by said horizontal sync signals, second means for applying pulses for altering the count in said character counter means synchronized by said horizontal sync signals, display delay counter means responsive to the occurrence of a vertical sync signal and horizontal sync signals for delaying the application of pulses by said first and second means to said respective line and character counter means until it has reached its full count capacity, and read means responsive to the counts of said line counter means and said character counter means for reading characters out of said memory for display at locations on the face of said display device corresponding to locations in said memory, means for providing a continuously moving effect to the data being displayed comprising: counter means, means responsive to a vertical sync signal to enable the application of horizontal sync signals to said counter means, to be counted thereby, means responsive to a predetermined count of said counter means to generate an extra count signal, and means for applying said extra count signal to said line counter means to thereby cause the readout of a character from said memory at a time to be displayed on a line location different than the location in memory.

Claim 29

In a continuous data display system of the type which operates to provide a scanning raster on the face of a display device in response to horizontal sync signals being provided for each line of a scanning raster and vertical sync signals for each frame of a scanning raster, a memory stores data in the form of characters at address locations corresponding to address locations on the face of said display device on which they are displayed in the form of lines of data, and there is provided a means synchronized by said vertical and horizontal sync signals for reading characters out of said memory to be displayed on the face of said display device, said means for reading including line counter means for indicating the line address of a character, a character counter means for indicating the address of a character along a line, first means for applying pulses altering the count in said line counter means synchronized by said horizontal sync signals, second means for applying pulses for altering the count in said character counter means synchronized by said horizontal sync signals, display delay counter means responsive to the occurrence of a vertical sync signal and horizontal sync signals for delaying the application of pulses by said first and second means to said respective line and character counter means until it has reached its full count capacity, and read means responsive to the counts of said line counter means and said character counter means for reading characters out of said memory for display at locations on the face of said display device corresponding to locations in said memory, means for providing a continuously moving effect to the data being displayed comprising: counter means, means responsive to a vertical sync signal to enable the application of horizontal sync signals to said counter means, to be counted thereby, means responsive to a predetermined count of said counter means to generate an extra count signal, and means for applying said extra count signal to said line counter means to thereby cause the readout of a character from said memory at a time to be displayed on a line location different than the location in memory.

Claim 30

In a continuous data display as recited in claim 24 including means responsive to said vertical sync signals for generating successive delay signals cyclically varying from predetermined minimum to maximum delay intervals, a source of high-frequency pulses at a frequency higher than said horizontal sync frequency, gate means responsive to said successive delay signals for applying high-frequency pulses from said source to said display delay counter means over the interval of each said delay signal to alter the time of commencement of each display to thereby prevent a jumpy display.

Claim 31

In a continuous data display system of the type which operates to provide a scanning raster on the face of a display device in response to horizontal sync signals being provided for each line of a scanning raster and vertical sync signals for each frame of a scanning raster, a memory stores data in the form of characters at address locations corresponding to address locations on the face of said display device on which they are displayed in the form of lines of data, and there is provided a means synchronized by said vertical and horizontal sync signals for reading characters out of said memory to be displayed on the face of said display device, said means for reading including line coUnter means for indicating the line address of a character, a character counter means for indicating the address of a character along a line, first means for applying pulses altering the count in said line counter means synchronized by said horizontal sync signals, second means for applying pulses for altering the count in said character counter means synchronized by said horizontal sync signals, display delay counter means responsive to the occurrence of a vertical sync signal and horizontal sync signals for delaying the application of pulses by said first and second means to said respective line and character counter means until it has reached its full count capacity, and read means responsive to the counts of said line counter means and said character counter means for reading characters out of said memory for display at locations on the face of said display device corresponding to locations in said memory, means for providing a continuously moving effect to the data being displayed comprising means responsive to said horizontal sync signals for generating successive delay signals cyclically varying from predetermined maximum to predetermined minimum delay intervals, means responsive to a delay signal for generating an extra count pulse, and means for applying said extra count pulse to said character counter means to thereby cause readout of a character from said memory at a time to be displayed at a different location along a line than the one in memory.

Claim 32

In a continuous data display system of the type which operates to provide a scanning raster on the face of a display device in response to horizontal sync signals being provided for each line of a scanning raster and vertical sync signals for each frame of a scanning raster, a memory stores data in the form of characters at address locations corresponding to address locations on the face of said display device on which they are displayed in the form of lines of data, and there is provided a means synchronized by said vertical and horizontal sync signals for reading characters out of said memory to be displayed on the face of said display device, said means for reading including line coUnter means for indicating the line address of a character, a character counter means for indicating the address of a character along a line, first means for applying pulses altering the count in said line counter means synchronized by said horizontal sync signals, second means for applying pulses for altering the count in said character counter means synchronized by said horizontal sync signals, display delay counter means responsive to the occurrence of a vertical sync signal and horizontal sync signals for delaying the application of pulses by said first and second means to said respective line and character counter means until it has reached its full count capacity, and read means responsive to the counts of said line counter means and said character counter means for reading characters out of said memory for display at locations on the face of said display device corresponding to locations in said memory, means for providing a continuously moving effect to the data being displayed comprising means responsive to said horizontal sync signals for generating successive delay signals cyclically varying from predetermined maximum to predetermined minimum delay intervals, means responsive to a delay signal for generating an extra count pulse, and means for applying said extra count pulse to said character counter means to thereby cause readout of a character from said memory at a time to be displayed at a different location along a line than the one in memory.

Claim 33

In a continuous data display as recited in claim 26 including means responsive to a delay signal to delay operation of said second means for applying pulses for the interval of said delay signal, to thereby alter the time of commencement of the display of a line of characters to avoid a jumpy display.