Electric heating – Heating devices – Combined with diverse-type art device
Reexamination Certificate
2001-01-31
2002-08-13
Pelham, Joseph (Department: 3742)
Electric heating
Heating devices
Combined with diverse-type art device
C219S494000, C219S510000, C219S388000, C365S108000, C369S127000, C369S135000
Reexamination Certificate
active
06433310
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to a novel assembly suitable for reading/writing and/or erasing high density data or information on a media based on thermal coupling.
INTRODUCTION TO THE INVENTION
The instant invention builds upon concepts and assemblies disclosed in the cross-referenced applications. In particular, we reference IBM docket YOR920010056, which discloses a novel assembly suitable for reading data based on thermal coupling between the novel assembly and a storage media, and, IBM docket YOR920010062 which discloses a novel assembly suitable for writing and/or erasing high density data on a media. The novel assembly for reading data and the novel assembly for writing/erasing data each severally can provide important and critical advantages by having structural capabilities which enable the assemblies to work at speeds and resolutions which can qualitatively and profoundly transcend the delimitation of diffraction limited focused laser beam technologies. For example, the novel reading assembly can provide capabilities for reading information on a storage media, e.g., a phase-change media at high speed (e.g., greater than 0.01 MHZ, illustratively 100 MHZ) and, at a resolution such that there are storage densities larger than 1 Gbit/in
2
, the novel writing assembly complements these specifications.
SUMMARY OF THE INVENTION
As noted above, the present invention builds upon the just disclosed assemblies severally dedicated to a reading and to a writing/erasing capability, by disclosing a novel thermal assembly comprising at once a reading-writing-erasing capability. The present invention, accordingly, can realize important advantages of providing dual yet independent capabilities or functionalities for manifesting reading-writing-erasing on the nanometer scale.
The present invention advantageously uses the idea of direct thermal coupling between the assembly and a media. In this regard, we note that this direct thermal coupling can subsume far-field and/or near-field effects. In particular, near-field effects may include a continuum that may extend from coupling that subsumes at least one portion of the thermal near-field; ranging, e.g., from partially inclusive, to substantially or even complete coupling in the thermal near-field.
Accordingly, in a first aspect of the present invention, we disclose a reading/writing/ erasing assembly comprising:
i) a thermal heater for writing on a media;
ii) a temperature sensor capable of monitoring thermal coupling between the sensor and a media;
and
iii) a heater element for heating the temperature sensor.
In a second aspect of the present invention, we disclose a reading/writing/erasing assembly comprising:
i) a thermal heater element for writing on a media and/or for heating the temperature sensor;
and
ii) a temperature sensor capable of monitoring thermal coupling between the sensor and the media.
In a third aspect of the present invention, we disclose a reading/writing/erasing assembly comprising:
i) a thermal heater for writing on a media;
and
ii) a device comprising;
a) a temperature sensor capable of monitoring thermal coupling between the sensor and a media; and
b) a heater element for heating the temperature sensor.
In a fourth aspect of the present invention, we disclose a reading/writing/erasing assembly comprising:
a device comprising;
a) a temperature sensor capable of monitoring thermal coupling between the sensor and a media; and
b) a thermal heater element for heating the temperature sensor and for writing on a media.
REFERENCES:
patent: 5444651 (1995-08-01), Yamamoto et al.
patent: 5579199 (1996-11-01), Kawamura et al.
patent: 2002/0017701 (2002-02-01), Klersy et al.
Hamann Hendrik F.
Martin Yves
Wickramasinghe Hemantha Kumar
Kaufman Stephen C.
Pelham Joseph
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