Browse Prior Art Database

Data Handling System

IP.com Disclosure Number: IPCOM000096163D
Original Publication Date: 1963-Jan-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 42K

Publishing Venue

IBM

Related People

Pingry, CO: AUTHOR

Abstract

This device reads information from and records it on a magnetizable tape as a serializer-deserializer unit. The device can also be used independently of the tape. It eliminates the necessity of precise recording on a magnetic tape and the precise synchronization between the read magnetic pulse and the commutator pulses.

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 89% of the total text.

Page 1 of 2

Data Handling System

This device reads information from and records it on a magnetizable tape as a serializer-deserializer unit. The device can also be used independently of the tape. It eliminates the necessity of precise recording on a magnetic tape and the precise synchronization between the read magnetic pulse and the commutator pulses.

Single magnetic head 1 is reciprocally moved in a direction perpendicular to tape 2. Head 1 applies the read signals to amplifier-shaper unit 3 and to the Set input of set-reset trigger 4. Head 1 also records information bits on tape 2 through record-erase driver 5. Trigger 4 is reset prior to the occurrence of a read pulse by commutator 6. This has windings 7... 11 and a rotating permanent magnet 12. In the windings, a series of pulses is generated. The pulses pass through shaper circuit 13 and are applied to the Reset input of trigger 4. The movement of head 1 and magnet 12 are synchronized so that Set and Reset pulses appear alternately. The setting of trigger 4 in response to a read pulse produces a trigger during a period of time prior to the occurrence of the setting pulse.

Thus, critical time is obviated.

Connections are provided between commutator 6 and clamp-And's 14... 17. These are responsive, when conditioned by closure of switch 22, or alternatively switches 18... 21, to produce the reset pulses for trigger 4 along common line 23 and, at the same time, to produce pulses along lines 24, 25, etc. These later pulses...