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Magnetic Tape Spooler with Data Discrimination

IP.com Disclosure Number: IPCOM000091101D
Original Publication Date: 1969-Oct-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 58K

Publishing Venue

IBM

Related People

Cobb, RO: AUTHOR [+4]

Abstract

This magnetic tape spooler reads previously recorded magnetic tape and, dependent on the recording format, stops and indicates one or more conditions. A specific application is the spooling of previously recorded tape reels which contain a number of programs as segments of data which are to be individually wound on separate reels. The spooler utilizes unrecorded or blank areas of the tape in controlled lengths to indicate the specific function to be performed. The coding is accomplished by varying the lengths of the areas in some predetermined discipline. These specific segments of no data are read as control or identification for tape marking, cutting, etc., in the spooling operation. Identification of functions in this system is gap length dependent, therefore, any sequence or functions can be selected.

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Magnetic Tape Spooler with Data Discrimination

This magnetic tape spooler reads previously recorded magnetic tape and, dependent on the recording format, stops and indicates one or more conditions. A specific application is the spooling of previously recorded tape reels which contain a number of programs as segments of data which are to be individually wound on separate reels. The spooler utilizes unrecorded or blank areas of the tape in controlled lengths to indicate the specific function to be performed. The coding is accomplished by varying the lengths of the areas in some predetermined discipline. These specific segments of no data are read as control or identification for tape marking, cutting, etc., in the spooling operation. Identification of functions in this system is gap length dependent, therefore, any sequence or functions can be selected. The sensing of unrecorded lengths of tape has the advantage over other methods in that there are no modifications required to the tape writing units which prepare the initial tape.

Supply reel 10 and take-up reel 12 are at opposite ends of the device. The reel of tape to be segmented is mounted on the supply reel and threaded onto the take-up reel. At the start signal, the tape is wound from supply reel 10 until a gap of predetermined minimum length is sensed by tape reading head 14. This scans the entire width of the tape sensing only the presence or absence of data without out regard to the tracks. The unit then s...