Optical scanning reader system for loading computers

• US 4,550,247 A
• Filed: 01/13/1984
• Issued: 10/29/1985
• Est. Priority Date: 01/13/1984
• Status: Expired due to Fees

• Current Assignee: Databar Corporation
• Original Assignee: Databar Corporation
• Inventors: Larson, Rodney L., Winter, Arthur J.
• Primary Examiner(s): Pitts, Harold I.
• Application Number:
  US06/570,674
• Time in Patent Office: 655 Days
• Field of Search: 235/472
• US Class Current: 235/462.25
• CPC Class Codes: G06F 3/08 from or to individual record carriers, e.g. punched card , memory card, integrated circuit [IC] card or smart card
• CPC Class Codes: G06F 9/445 Program loading or initiating bootstrapping G06F9/4401; security arrangements for program loading or initiating G06F21/57
• CPC Class Codes: G06K 7/10881 constructional details of hand-held scanners

Abstract

Computer programs or other informational data are recorded on one or more sheets in the form of lines of optical bar code. At least one Control Array line containing characters which define the format for the program or other informational data to be transmitted to a specific digital computer is included in the optical bar code in addition to the data lines which contain characters representing the particular program of other information. A bar code scanner scans the lines of optical bar code and converts the scanned marks and spaces of the optical bar code into digital data representative of the characters in the line which is scanned. The digital data from the Control Array line is stored as Control Array data, and the digital data from one or more data lines are stored as program or informational data. After a predetermined amount of program or informational data has been stored, the scanner transmits the stored program or informational data to the digital computer in a format which is based upon the stored Control Array data.

Claims

1. A system for loading prerecorded computer programs into a digital computer, the prerecorded computer program being recorded in the form of a plurality of lines of optical bar code, the plurality of lines including at least one Control Array line containing characters identifying the digital computer for which the program is written and defining a format for program data to be transmitted to the digital computer, and the plurality of lines including at least one data line containing additional characters representing the program data, the system comprising an optical bar code reader for providing an output representative of mark and space bars of the optical bar code as relative movement of the reader with respect to the optical bar code occurs, means for converting the output of the optical bar code reader for each line into digital data representative of the characters in that line, means for storing the digital data from the Control Array line as Control Array data, means for storing the digital data from the data line as program data, and means for transmitting the stored program data to the digital computer in a format based upon the stored Control Array data.

2. The system of claim 1 wherein each line begins with a predetermined start-of-line character.

3. The system of claim 2 wherein the means for converting does not begin converting the output of the optical bar code reader into digital data until the output has changed in a first predetermined manner indicative of the start-of-line character.

4. The system of claim 3 wherein each line ends with a predetermined end-of-line character.

5. The system of claim 4 wherein the means for converting discontinues further converting of the output between a time when the output changes in a second predetermined manner indicative of the end-of-line character and a time when the output changes in the first predetermined manner indicative of another start-of-line character.

6. The system of claim 1 wherein each line includes at least one character for defining a line number for that line, and wherein the system further includes means for checking the line number of each line based upon digital data from the means for converting, and means for providing a warning signal if the line number of the line does not have a predetermined relationship to preceding line numbers.

7. The system of claim 1 wherein each line includes at least one checksum character representing a value which, when summed with values of the other characters of the line, produces a predetermined value, and wherein the system further includes means for summing the digital data from the line to produce a checksum total, and means for providing a warning signal indicating the line was not read correctly if the checksum total does not equal the predetermined value.

8. The system of claim 1 wherein the Control Array data includes a transmit block length, a number of times the block is to be transmitted, a leader length, an Inter-Record Gap length, a gap content, and start, mark, space and end bit waveform times.

9. The system of claim 8 wherein the Control Array information further includes mark, space and Inter-Record Gap marks.

10. The system of claim 1 wherein the Control Array line includes function characters which identify it as a Control Array line, and wherein the data line includes function characters which identify it as a data line.

11. A system for loading information into a digital computer comprising carrier means having thereon at least one Control Array line of optical bar code and at least one data line of optical bar code, said Control Array line containing characters representing Control Array data which define a format for information data to be transmitted to the digital computer and said data line containing characters representing the information data to be transmitted, and bar code scanner means for scanning said lines of optical bar code and loading the information represented by the data line into the digital computer, the bar code scanner means including means for providing an output representative of the mark and space bars of each line, means for converting the output for each line into digital data representative of the characters in that line, means for storing the digital data from the Control Array line as the Control Array data and the digital data from the data line as the information data, and means for transmitting the stored information data to the digital computer in the format defined by the stored Control Array data.

12. The system of claim 11 wherein each of said lines begins with a predetermined start-of-line character.

13. The system of claim 12 wherein the means for converting does not begin converting the output of the optical bar code reader into digital data until the output has changed in a first predetermined manner indicative of the start-of-line character.

14. The system of claim 13 wherein each line ends with a predetermined end-of-line character.

15. The system of claim 14 wherein the means for converting discontinues further converting of the output between a time when the output changes in a second predetermined manner indicative of the end-of-line character and a time when the output changes in the first predetermined manner indicative of another start-of-line character.

16. The system of claim 11 wherein each of said lines includes at least one character for defining a line number for that line, and wherein the bar code scanner means further comprises means for checking the line number of each line based upon digital data from said converting means, and means for providing a warning signal if the line number of the line does not have a predetermined relationship to preceding line numbers.

17. The system of claim 11 wherein each line includes at least one checksum character representing a value which, when summed with values of the other characters of the line, produces a predetermined value, and where the bar code scanner means further includes means for summing the digital data from the line to produce a checksum total, and means for providing a warning signal indicating the line was not read correctly if the checksum total does not equal the predetermined value.

18. The system of claim 11 wherein the Control Array data includes a transmit block length, a number of times the block is to be transmitted, a leader length, an Inter-Record Gap length, a gap content, and start, mark, space and end bit waveform times.

19. A system for loading a computer utilizing a program and Control Array recorded on a carrier in the form of a plurality of lines of optical bar code comprising a Control Array line on the carrier containing a start-of-line character, a function byte which identifies the Control Array line, a machine type byte which identifies a computer for which the program is written, a plurality of bytes which define a format for program data to be transferred to the computers, a checksum byte which, when summed with other bytes of the Control Array line, yields a predetermined value, and an end-of-line character, the carrier further including thereon at least one data line containing a start-of-line character, a line number byte, a function byte which identifies the data line, a plurality of data bytes which represent the program data, a checksum byte which, when summed with other bytes of the data line, yields the predetermined value, and an end-of-line character.