System for putting an information record onto a magnetic substrate
AssigneeIng. C. Olivetti & C., S.p.A.
InventorsAngelo Subrizi, Ettore Violino
Life of this patent
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Abstract
An information recording system comprises a peripheral control unit for recording bits of a character one at a time coincident with the middle of a record time interval. The peripheral control unit is responsive to a central unit which cyclically transmits microinstructions to the peripheral control unit coincidentally with transfer of bits to said record device from a register storing the bits of a character to be recorded.
Claims9
System for recording an information character onto a magnetic substrate comprising a first memory for storing a microprogram adapted to control said record operation, a second memory for storing said character, a central unit conditioned by said microprogram for reading said character out of said second memory, and a record device for recording said character onto said magnetic substrate, wherein a peripheral control unit responsive to predetermined decoded microinstructions provided by said central unit for providing corresponding record signals to said record device, said central unit comprising means for cyclically transmitting said predetermined microinstructions to said peripheral control unit at fixed time intervals, a register for storing in corresponding cells the bits of the character to be recorded, means for sequentially sensing each of said cells substantially in the middle of said fixed time intervals and means controlled by said sensing means for selectively sending said predetermined microinstructions to said peripheral control unit in coincidence with sending said bits to said record device.
System as in 1 wherin said central unit comprises a second register for storing one at the time the microinstructions of said microprogram read from said first memory, a transmission channel connecting said second register to said peripheral control unit, a decoder unit means for decoding said microinstructions and for generating commands associated with said microinstructions and execution means controlled by said commands for executing the processing operations associated with said microinstructions, each microinstruction being executed in a predetermined time interval, said first memory storing a microinstruction set between said predetermined microinstructions, said execution means executing the microinstructions of said set in a time interval equal to said foced time interval, and said decode unit enabling said channel in coincidence with said predetermined microinstructions.
Dependencies are inferred from the claim text.