Processing of video image signals
Patent 4918530 Issued on April 17, 1990. Estimated Expiration Date: 
August 25, 2009. 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.
August 25, 2009. 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 ReferencesVideo apparatus and method for producing the illusion of motion from a sequence of still images Picture transformation memory Patent #: 4743970 InventorsAssigneeApplicationNo. 398540 filed on 08/25/1989US Classes:348/579, Strobe (e.g., ball tracker)348/578Special effectsExaminersPrimary: Chin, Tommy P.Attorney, Agent or FirmInternational ClassH04N 005/272AbstractA video image processing system for generating so-called "multi-freeze" digital video effects comprises a frame store (14) within which an image signal can be stored for application to a combining circuit (4) together with a background image signal (1) providing a background against which a trail of frozen images is to be displayed. The trail of images is derived by recycling images stored in the memory (14) through a further combining circuit (19) wherein the stored image is combined with incoming image signals applied to both combining means (4,19). Decay and patterning of the frozen images can be effected by circuits (24,25) for attenuating and profiling the key signals accompanying the image signals. | |
