Method and apparatus for converting the resolution of dot matrix display data

Claim 3

The method of claim 1, wherein said additional data is inserted by inserting the same number of blank commands between each data until all of said additional data is inserted to generate a plurality of data partitions with said original data.

Claim 4

The method of claim 2 further comprising distributing any data following said plurality of partitions by rearranging each partition identified by the integer of , where SNAF is the number of remaining data, to include the next original data.

Claim 5

The method of claim 3 where additional data are inserted in every partition corresponding to the integer , the remaining SNAF data being inserted additional data.

Claim 10

The method of claim 7 further comprising forming intermediate resolution data from said serial data of resolution N, said intermediate data having a resolution of X"S.

Claim 11

The method of claim 8 where X is selected as (integer ((N-1)/S)) + 1 .

Claim 12

The method of claim 8 or 9, wherein the intermediate resolution data are formed in accordance with the method of one of the claims 1 -6.

Claim 13

In a system for displaying dot matrix data, apparatus for converting serial data comprising a plurality of binary data slices comprising blank commands and a dot command of one resolution N to data of a second resolution M corresponding to the resolution of a display device comprising: a serial data input port (14) connected to receive individual graphic data slices along with data header transmitted from a host processor (11); and a microprocessor (15) connected to receive original serial data from said data input port and to deliver an output data stream to said display device, said microprocessor programmed to decode each received header to determine the resolution N of the data from said host device; determine a minimum ratio of input data resolution to output data resolution M as N1/M1; determine a number of extra data positions M1-N1 in said output data stream; and inserting new data between each of said original serial graphic data until M1-N1 data are inserted, said inserted data being a blank command when one of the preceding and following original data are blank commands, and a dot command when both of said preceding and following original data is a dot command.

Claim 14

In a system for displaying dot matrix data, apparatus for converting serial data comprising a plurality of binary data slices comprising blank commands and a dot command of one resolution N to data of a second resolution M corresponding to the resolution of a display device comprising: a serial data input port (14) connected to receive individual graphic data slices along with data header transmitted from a host processor (11); and a microprocessor (15) connected to receive original serial data from said data input port and to deliver an output data stream to said display device, said microprocessor programmed to decode each received header to determine the resolution N of the data from said host device; determine a minimum ratio of input data resolution to output data resolution M as N1/M1; determine a number of extra data positions M1-N1 in said output data stream; and inserting new data between each of said original serial graphic data until M1-N1 data are inserted, said inserted data being a blank command when one of the preceding and following original data are blank commands, and a dot command when both of said preceding and following original data is a dot command.

Claim 15

The apparatus of claim 11, wherein said microprocessor is further programmed to perform the steps of: determining whether N1 is greater than B where B= M1-N1; inserting each new single new data slice between original data slices at an interval corresponding to the whole number integer of N1/B; and if any remainder data slices SNAF occur following the inserted data, redistributing said original and new data slices by including more than one original data slices at intervals defined by the whole number integer B/SNAF.

Claim 16

The apparatus of claim 12, wherein said microprocessor is further programmed to perform the steps of: determining whether N1 is less than or equal to B, where B = M1-N1; inserting between each original data slice a number of inserted data slices corresponding to the whole number integer of the fraction B and if any remainder data slices SNAF need to be inserted to derive N1-M1 data positions, inserting an additional inserted data slice every integer of N1/SNAF.