Browse Prior Art Database

Transducer Arrangement for Audio and Digital Signals

IP.com Disclosure Number: IPCOM000090822D
Original Publication Date: 1969-Jul-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Beattie, HS: AUTHOR [+3]

Abstract

This transducer has an audio gap and a program gap for sensing the corresponding kinds of signals in preassigned areas on a magnetic record media. Transducer 1 with audio gap 2 and program gap 3 is arranged for scanning action indicated by arrow 4 and stepping action indicated by arrow 5 to scan audio and program information in record media 6. The scanning and stepping action produces a back and forth signal path 7 with track portions 7a, 7b, and 7c. Signal path 7 lies within the limits defined by turnaround strips 8 and 9 in a central portion 6a of media 6. Edge portion 6b has program information for controlling modes of operation or determining other functions in apparatus not shown. Program gap 3 is located a distance D apart from audio gap 2 corresponding to area 6b.

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Transducer Arrangement for Audio and Digital Signals

This transducer has an audio gap and a program gap for sensing the corresponding kinds of signals in preassigned areas on a magnetic record media. Transducer 1 with audio gap 2 and program gap 3 is arranged for scanning action indicated by arrow 4 and stepping action indicated by arrow 5 to scan audio and program information in record media 6. The scanning and stepping action produces a back and forth signal path 7 with track portions 7a, 7b, and 7c. Signal path 7 lies within the limits defined by turnaround strips 8 and 9 in a central portion 6a of media 6. Edge portion 6b has program information for controlling modes of operation or determining other functions in apparatus not shown. Program gap 3 is located a distance D apart from audio gap 2 corresponding to area 6b. As transducer 1 traces track portion 7a, it encounters a limit switch or printed circuit element 10 near turnaround strip 9 that gates program gap 3 to sense the program information related to track portion 7a. Program information related to track portion 7b is sensed during movement to the left after stepping. A separate independent head can be provided for sensing either the audio or program information. The operation can be such that a change in mode occurs when the program code for any individual line differs from the program code associated with the preceding line. Also, a first line having the audio portion blank but with program informat...