Browse Prior Art Database

Audio Reproduction

IP.com Disclosure Number: IPCOM000091005D
Original Publication Date: 1969-Sep-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 42K

Publishing Venue

IBM

Related People

Diener, HC: AUTHOR

Abstract

An audio response unit for use with disk files for computers provides audio communication to the operator. A disk drive contains a drive shaft 1, access arm 11, and disk 13. A tube 7, with a sound recording on it, is driven by shaft 1 in synchronism with disk 13.

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Audio Reproduction

An audio response unit for use with disk files for computers provides audio communication to the operator. A disk drive contains a drive shaft 1, access arm 11, and disk 13. A tube 7, with a sound recording on it, is driven by shaft 1 in synchronism with disk 13.

Sound is recorded on tube 7 using photographic variable density techniques as in motion picture sound tracks. Each word is recorded at a position on tube 7 corresponding mechanically to an addressable track on disk 13. Audio signals, messages and words can be retrieved by using arm 11 and addressing commands.

The audio unit includes tube 7 rotated by torque from shaft 1 by a speed reducer composed of worm drive 2 and pinion 3. It also includes shaft 5 carried by supports 4. Coupling 6 is attached to shaft 5 which supports and drives optically translucent recording tube 7.

Tubular lamp 8 fits inside tube 7 and is supported and supplied by receptacle 9 carried and supported by slotted assembly 10 which provides for Sliding lamp 8 into and out of tube 7. Mounted on arm 11 is low-mass optical transducer 12 with lens, aperture and photo electric pickup. Light from lamp 8 passes through disk 13 and fluctuates in response to recordings to excite transducer 12. The output of transducer 12 goes to an audio output. Gates under computer control actuate units for reading, amplification and reproduction of signals. To reduce the mass of the optical system, stationary lens 14 in strip form can be mo...