Patent classifications
G
PHYSICS
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G11
INFORMATION STORAGE
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G11B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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9/00
Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
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G11B9/12
using near-field interactions; Record carriers therefor
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G11B9/14
using microscopic probe means; , i.e. recording or reproducing by means directly associated with the tip of a microscopic electrical probe as used in Scanning Tunneling Microscopy [STM] or Atomic Force Microscopy [AFM] for inducing physical or electrical perturbations in a recording medium; Record carriers or media specially adapted for such transducing of information
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G11B9/1418
Disposition or mounting of heads or record carriers
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G11B9/1427
with provision for moving the heads or record carriers relatively to each other or for access to indexed parts without effectively imparting a relative movement
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G11B9/1436
with provision for moving the heads or record carriers relatively to each other
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G11B9/1445
switching at least one head in operating function; Controlling the relative spacing to keep the head operative, e.g. for allowing a tunnel current flow
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G11B9/1445

Multiple probe detection and actuation
09739798 · 2017-08-22 · ·

A method of detecting the positions of a plurality of probes. An input beam is directed into an optical device and transformed into a plurality of output beamlets which are not parallel with each other. Each output beamlet is split into a sensing beamlet and an associated reference beamlet. Each of the sensing beamlets is directed onto an associated one of the probes with an objective lens to generate a reflected beamlet which is combined with its associated reference beamlet to generate an interferogram. Each interferogram is measured to determine the position of an associated one of the probes. A similar method is used to actuate a plurality of probes. A scanning motion is generated between the probes and the sample. An input beam is directed into an optical device and transformed into a plurality of actuation beamlets which are not parallel with each other.