Patent US5373494A successfully refreshed from Google Patents.
US5373494A
Expired / Lapsed
US
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Information recording and/or reproducing apparatus
Assignee: Canon Inc
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Filing: 1992-06-10
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Granted: 1994-12-13
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Expires: 2012-06-10
Abstract
Abstract An information recording and/or reproducing apparatus includes a recording medium having a plurality of segmented planar electrodes, a plurality of probe electrodes respectively facing and electrically connected to the plural planar electrodes, and a circuit for independently applying a voltage for recording and/or reproducing between each pair of the planar electrodes and the probe electrodes. The information recording and/or reproducing apparatus includes a circuit for inputting information to be recorded on the recording medium. A memory other than the recording medium is used for temporarily storing the input information, and a control circuit applies the recording voltages between the plurality of probe electrodes and the segmented planar electrodes in correspondence with the information stored in the memory.
Inventors
- 👤 Hideyuki Kawagishi
- 👤 Haruki Kawada
- 👤 Kiyoshi Takimoto
- 👤 Toshimitsu Kawase
- 👤 Yuko Morikawa
- 👤 Katsuhiko Shinjo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:51
CPC Classifications
G; G11; G11C; G11C13/00; G11C13/0002; G11C13/0009; G11C13/0014; B; B82; B82Y; B82Y10/00; G11B; G11B9/00; G11B9/12; G11B9/14; G11B9/1418; G11B9/1427; G01; G01Q; G01Q70/00; G01Q70/06; G01Q80/00; Y; Y10; Y10S; Y10S977/00; Y10S977/902; Y10S977/932; Y10S977/943; Y10S977/947
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
160 words
An information recording/reproducing apparatus for effecting at least one of recording of information and reproducing of information by using a probe electrode, comprising: a recording medium having a plurality of band-like planar electrodes arranged in parallel; a substrate arranged to face said recording medium; a plurality of conductive lines which are formed in parallel on said substrate and which are arranged to cross said band-like planar electrodes; a plurality of probe electrodes each of which is arranged at a position where the respective conductive lines and band-like planar electrodes cross each other, said plurality of probe electrodes being electrically connected to said conductive lines and facing said planar electrodes; selection means for subsequently selecting one of said plurality of conductive lines to be rendered operative; and a voltage applying circuit for independently applying a voltage for recording/reproducing between said respective planar electrodes and said probe electrodes electrically connected to said conductive lines which are rendered operative by said selection means.
Claim 2
Dependent Claim
160 words
An information recording/reproducing apparatus for effecting at least one of recording of information and reproducing of information by using a probe electrode, comprising: a recording medium having a plurality of band-like planar electrodes arranged in parallel; a substrate arranged to face said recording medium; a plurality of conductive lines which are formed in parallel on said substrate and which are arranged to cross said band-like planar electrodes; a plurality of probe electrodes each of which is arranged at a position where the respective conductive lines and band-like planar electrodes cross each other, said plurality of probe electrodes being electrically connected to said conductive lines and facing said planar electrodes; selection means for subsequently selecting one of said plurality of conductive lines to be rendered operative; and a voltage applying circuit for independently applying a voltage for recording/reproducing between said respective planar electrodes and said probe electrodes electrically connected to said conductive lines which are rendered operative by said selection means.
Claim 3
Dependent Claim
141 words
An information recording/reproducing apparatus for effecting at least one of recording of information and reproduction of information by using a probe electrode, comprising: a recording medium having an electrode which is divided into a plurality of sections; a plurality of probe electrodes each of which is grounded and is arranged to face the respective divided sections of said electrode; a plurality of voltage applying means, connected to the respective divided sections of said electrode, for independently applying a voltage for recording/reproduction between the respective divided sections of said electrode and said probe electrodes facing the respective divided sections of said electrode; and a plurality of current detection means each connected to the respective divided sections of said electrode for independently detecting a current flowing through the respective divided sections of said electrode upon applying the voltage by said voltage applying means.
Claim 4
Dependent Claim
141 words
An information recording/reproducing apparatus for effecting at least one of recording of information and reproduction of information by using a probe electrode, comprising: a recording medium having an electrode which is divided into a plurality of sections; a plurality of probe electrodes each of which is grounded and is arranged to face the respective divided sections of said electrode; a plurality of voltage applying means, connected to the respective divided sections of said electrode, for independently applying a voltage for recording/reproduction between the respective divided sections of said electrode and said probe electrodes facing the respective divided sections of said electrode; and a plurality of current detection means each connected to the respective divided sections of said electrode for independently detecting a current flowing through the respective divided sections of said electrode upon applying the voltage by said voltage applying means.
Claim 5
Dependent Claim
36 words
An apparatus according to claim 2, further comprises a silicon substrate for supporting the recording medium wherein said plurality of voltage applying means and said plurality of current detection means are integrated in said silicon substrate.
Claim 6
Dependent Claim
35 words
An apparatus according to claim 2, further comprises displacing means, provided on each of said plurality of probe electrodes, for displacing the respective probe electrodes, and a substrate for supporting said plurality of probe electrodes.
References Cited (Backward Citations)
US3710352A
Cited
US3872445A
Cited
JPS62281138A
Cited
WO1989007256A1
Cited
DE3823010A1
Cited
US5036490A
Cited
FR2637409A1
Cited
EP0381113A2
Cited
EP0382192A1
Cited
EP0397416A1
Cited
DE4022711A1
Cited
US5075548A
Cited
US5132533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-12-12 | 1998-06-13 | 1998-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-12 | 2002-06-13 | 2002-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-12 | 2006-06-13 | 2006-12-13 | $7700.00 | Window Closed / Lapsed |