Multiple independently positionable recording-reading head disk system
First Claim
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1. A multiple independently positionable recording-reading head optical disk system comprising:
- a rotatable optical disk having an arrangement of data elements on a data reading and recording surface of the disk;
a plurality of recording-reading head means for reading and writing data onto the recording surface of the optical disk, each of the head means having a means for focusing; and
a plurality of transporting means, one associated with each one of the recording-reading head-means for moving its associated head means over one side of the optical disk to selectively position the associated 3 head means relative to said recording surface, each of the transporting means being movable independently of the other transporting means to enable each of the recording-reading head means to be selectively positioned for performing data operations including reading data recorded on the recording surface and writing data onto the recording surface of the optical disk, independently of the other recording-reading head means, and further to enable the recording-reading head means to perform data operations simultaneously.
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Abstract
A multiple independently positionable recording-reading head optical disk system. The system includes at least one optical disk having an arrangement of data elements. A plurality of recording-reading heads read and write data onto the optical disk. An apparatus for transporting the plurality of recording-reading heads over one side of the optical disk enabling each of the recording-reading heads to read data from or write data onto the optical disk independently of the other recording-reading heads.
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Citations
18 Claims
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1. A multiple independently positionable recording-reading head optical disk system comprising:
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a rotatable optical disk having an arrangement of data elements on a data reading and recording surface of the disk; a plurality of recording-reading head means for reading and writing data onto the recording surface of the optical disk, each of the head means having a means for focusing; and a plurality of transporting means, one associated with each one of the recording-reading head-means for moving its associated head means over one side of the optical disk to selectively position the associated 3 head means relative to said recording surface, each of the transporting means being movable independently of the other transporting means to enable each of the recording-reading head means to be selectively positioned for performing data operations including reading data recorded on the recording surface and writing data onto the recording surface of the optical disk, independently of the other recording-reading head means, and further to enable the recording-reading head means to perform data operations simultaneously. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 16, 17)
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10. A multiple independently positionable recording-reading head optical disk system comprising:
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a rotatable optical disk having an arrangement of data elements on a data reading and recording surface of the disk; two recording-reading transducer heads for performing data operations including reading data recorded on the recording surface and writing data onto the recording surface each having a means for focusing; at least two stepper motors; at least two extended rails wherein the rails are in a parallel relationship across the disk and extend beyond the circumference of the disk; and at least two wormscrew drives in parallel relationship to the extended rails wherein each of the wormscrew drives is driven by one of the stepper motors and acts in cooperation with the adjacent rail and associated stepper motor to support and transport one of the recording-reading transducer heads, each of the stepper motors operable independently of the other to selectively position its associated recording-reading head for performing data operations independently of and simultaneously with any other ones of said reading-recording transducer heads. - View Dependent Claims (11, 12, 13, 14, 15)
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18. A multiple independently positionable recording-reading head disk system comprising:
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a rotatable disk having an arrangement of data elements on a data reading and recording surface of the disk; a plurality of recording-reading head means for reading and writing data onto the disk; and means for transporting the plurality of recording-reading head means over one side of the disk so as to enable each of the recording-reading head means to read data from or write data onto the disk independently of the other recording-reading heads.
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Specification