Multicolor display for the visual-aesthetic portrayal of electric signals
Patent 3940789 Issued on February 24, 1976. Estimated Expiration Date: 
February 24, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 24, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3193838 3604852 3627912 3697688 3723652 3806648 InventorsAssigneeApplicationNo. 378964 filed on 07/13/1973US Classes:381/56, MONITORING OF SOUND381/1, BINAURAL AND STEREOPHONIC704/276Pattern displayExaminersPrimary: Griffin, Robert L.Assistant: Saffian, Mitchell Attorney, Agent or FirmAbstractA multicolor visual display apparatus for stereophonic sound signals is disclosed. The display apparatus includes a conventional three gun color cathode ray tube, having a screen with a plurality of colored phosphor dot triads. Stereophonic signals are coupled to a deflection yoke located on the neck of the tube for producing a pattern on the screen in sympathy with the information content of the channels. The convergence coils and purity rings normally located at the rear of the yoke on a three gun color tube neck are not used. Their absence permits the location of the deflection yoke behind its normal position whereby electrons from any of the guns strike phosphor dots of different colors in different regions of the screen, producing a pleasing multicoloration of the pattern. A coil in the nature of a standard degaussing coil is activated while the pattern is displayed to further enhance this multicoloration.Other References
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