US3698794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sonic page composer for holographic memory
Assignee: RCA Corp
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Filing: 1970-12-02
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Granted: 1972-10-17
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Expires: 1990-12-02
Abstract
Abstract A page composer is disclosed for translating a plurality of serial electrical binary information signals to a pattern of light on an opto-magnetic recording medium. A plurality of radiofrequency oscillators each has a control input coupled to a source of serial binary information signals, and an output coupled to an electro-mechanical transducer at one end of a respective one of a plurality of acousto-optic columns. Sonic information is thus propagated serially through the columns as information cells which contain a sonic burst to represent one binary value, and no burst to represent the other binary value. Incident light from a source is directed through the columns at an angle with the sonic wavefronts therein to cause diffraction of the light. The source of light is pulsed when the columns are filled with serially-supplied sonic information. Cells containing a sonic burst cause a diffraction of the light passing therethrough, and cells not containing a sonic burst permit the light to pass directly therethrough.
Inventors
- 👤 Gerard Argant Alphonse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:55
CPC Classifications
G; G11; G11C; G11C13/00; G11C13/04; G02; G02F; G02F1/00; G02F1/29; G02F1/33
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
123 words
The combination of a plurality of parallel-extending acousto-optic columns each having an electro-mechanical transducer at one end, a plurality of radio-frequency oscillators each having a control input coupled to a source of serial binary information signals and an output coupled to a respective transducer, whereby to propagate binary information serially through all of said columns in unison as sonic information cells which contain a sonic burst to represent one binary value and no burst to represent the other binary value, and means periodically operative whenever said columns are newly filled with serially-supplied sonic information cells to direct light from a source through said columns at an angle with the sonic wavefronts therein to cause diffraction of the light passing through a sonic burst.
Claim 2
Dependent Claim
123 words
The combination of a plurality of parallel-extending acousto-optic columns each having an electro-mechanical transducer at one end, a plurality of radio-frequency oscillators each having a control input coupled to a source of serial binary information signals and an output coupled to a respective transducer, whereby to propagate binary information serially through all of said columns in unison as sonic information cells which contain a sonic burst to represent one binary value and no burst to represent the other binary value, and means periodically operative whenever said columns are newly filled with serially-supplied sonic information cells to direct light from a source through said columns at an angle with the sonic wavefronts therein to cause diffraction of the light passing through a sonic burst.
Claim 3
Dependent Claim
26 words
The combination as defined in claim 1 and, in addition, a mask having apertures spaced an amount equal to the spacing between successive sonic information cells.
Claim 4
Dependent Claim
47 words
The combination as defined in claim 1 and, in addition, a mask having apertures spaced an amount equal to the spacing between successive sonic information cells, and means to pulse said source of light when serial information cells are in registry with the apertures of said mask.
Claim 5
Dependent Claim
212 words
Means for translating a plurality of serial electrical binary information signals to a pattern of light on an opto-magnetic recording medium, comprising a plurality of parallel-extending acousto-optic columns each having an electro-mechanical transducer at one end, and an acoustic termination at the other end, a plurality of radio-frequency oscillators each having a control input coupled to a source of serial binary information signals and an output coupled to a respective transducer, whereby to propagate binary information serially through all of said columns in unison as sonic information cells which contain a sonic burst to represent one binary value and no burst to represent the other binary value, a source of an incident light directed through said columns at an angle with the sonic wavefronts therein to cause diffraction of the light passing through a sonic burst, a mask having apertures spaced an amount equal to the spacing between successive sonic iNformation cells, and means to pulse said source of light whenever said columns are newly filled with serially-supplied sonic information cells and the information cells are in registry with the apertures of said mask, whereby cells containing a sonic burst cause a diffraction of the light passing therethrough, and cells not containing a sonic burst permit the light to pass directly therethrough.
Claim 6
Dependent Claim
212 words
Means for translating a plurality of serial electrical binary information signals to a pattern of light on an opto-magnetic recording medium, comprising a plurality of parallel-extending acousto-optic columns each having an electro-mechanical transducer at one end, and an acoustic termination at the other end, a plurality of radio-frequency oscillators each having a control input coupled to a source of serial binary information signals and an output coupled to a respective transducer, whereby to propagate binary information serially through all of said columns in unison as sonic information cells which contain a sonic burst to represent one binary value and no burst to represent the other binary value, a source of an incident light directed through said columns at an angle with the sonic wavefronts therein to cause diffraction of the light passing through a sonic burst, a mask having apertures spaced an amount equal to the spacing between successive sonic iNformation cells, and means to pulse said source of light whenever said columns are newly filled with serially-supplied sonic information cells and the information cells are in registry with the apertures of said mask, whereby cells containing a sonic burst cause a diffraction of the light passing therethrough, and cells not containing a sonic burst permit the light to pass directly therethrough.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |