US Patent: 3,439,346
|
| Record Reading System for Simultaneous Control of a Plurality of Devices
|
|
Patentee:
|
|
| John K. McGee (exact or similar names) - Houston, Harris County, TX |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Aug. 17, 1966 |
| Granted: |
Apr. 15, 1969 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
"Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.
|
|
Description: |
| Abstract:
A system for reading an elongated record or tape containing randomly interspersed blocks of two or more types (A or B) of digital data into data processing apparatus so as to continuously control two or more (A and B) utilization devices such as servomechanisms, and wherein different blocks of data are sufficient to keep a utilization device busy for different periods of time. All A data blocks are used in the order of their appearance on the tape without regard to any B data blocks; and all B data blocks are used in their order of appearance on the tape without regard to A data blocks. Apparatus signals when data of either type (A or B) is needed, and means respond thereto for starting the tape reader forwardly. As each block is sensed, means create a signal indicating whether that block contains A or B data. If the block contains the needed type of data, the signals read therefrom are accepted and the tape reader is stopped If the sensed block, or any number of blocks, contains data of the type not needed, means cause the data signals therefrom to be rejected or ignored (the block is skipped) and the reader continues running until a block containing the needed type of data is found, read and accepted. Control means then stop the reader and cause it to run in a reverse direction until the beginning of the first skipped and previously unused block of data is again disposed in the tape reader. Storing and con- trot devices cause any previously accepted block of data to be skipped even though it contains data of the type needed. Other apparatus performs auxiliary functions such as limiting the extent to which the systems will search forwardly on the record. |
|
