Browse Prior Art Database

Channelized Recording and Playback System

IP.com Disclosure Number: IPCOM000089893D
Original Publication Date: 1968-Dec-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 3 page(s) / 55K

Publishing Venue

IBM

Related People

Morrison, RE: AUTHOR

Abstract

The system provides for the recording and playback of dictated material in a large number of individual sound channels and with completely random selection and accessing of channels. Two arrangements are shown at A and B with a flow chart at C.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 53% of the total text.

Page 1 of 3

Channelized Recording and Playback System

The system provides for the recording and playback of dictated material in a large number of individual sound channels and with completely random selection and accessing of channels. Two arrangements are shown at A and B with a flow chart at C.

The A arrangement includes a dictation machine 1 with microphone 2 connected with control logic 3 and including selection keyboard 4. Machine 1 uses a magnetic belt media 5 with, as an example, 100 tracks, each accommodating approximately twelve seconds of dictated material. Machine 1 includes a transducer for recording and playback of signals, the relative position of which is indicated by index selector knob 6. A typical application for the system is for individuals to sign in and out by dictating their whereabouts on respectively assigned channels for playback by an attendant. Chart 7 displays the individuals assigned to each of the 100 tracks. Selection of an assigned channel for recording and playback is by an individually associated switch in keyboard 4.

In the B arrangement, the dictating unit is incorporated in the lower section of housing 10. Index knob 6a corresponds to knob 6. The equipment includes microphone 2a and necessary control logic to step the transducer forwardly and reversely with respect to the magnetic belt record media. Names of individuals and their assigned channels are displayed at 11. Selection of each of the 100 tracks is by two rows of selector buttons 12 with row 12b selecting the units digit and row 12a selecting the tens digit in the track number.

The chart in drawing C illustrates the operation. An individual selects an assigned channel by depression of the proper push buttons. Latches in the machine store the track location last addressed. Upon depression of the push buttons for channel selection, the logic determine...