Eastman-kodak Company

John S Hayward

Pin S Tschang

Benjamin B Snavely

A hybrid color image sensing array includes: (a) an array of semiconductor image sensing elements, each element having superposed upper and lower light responsive channels for producing first and second photosignals, the intrinsic spectral responses of the channels being different due to the differential absorption of light by a semiconductor material; and (b) an array of color filter elements disposed over the array of image sensing elements, the array of filter elements having: (1) elements of a first relative transmittance type adapted to tailor the spectral responses of an image sensing element such that the photosignals produced by the element possess a component representing the response of the element to light in a first preferred spectral region and a component representing the response of the element to light in a second spectral region, and (2) elements of a second relative transmittance type adapted to tailor the spectral responses of the image sensing element such that the photosignals produced by the element possess a component representing the response of the element to light in the first spectral region and a component representing the response of the element to light in a third spectral region. Known matrixing procedures are employed to separate a relatively high resolution first signal and relatively lower resolution second and third signals from the photosignals produced by the hybrid color image sensing array.

Hybrid color image sensing array

A time base corrector for use in defluttering video signals employs a pair of analog shift registers which functionally sandwich a buffer register. Signals are serially applied to one register, say at a fluttering rate; then parallel shifted to the buffer register; then parallel shifted to the second analog shift register; then serially clocked out of the second analog shift register at a reference rate. With such signal processing, successive signals always follow the same signal path, thereby avoiding the prior art need for complementary circuit components. Components of the time base corrector form parts of a solid state device, means being provided therefor to assure that charge vestiges cannot occur after charge shifting.

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Rochester, NY, United States of America

John S Hayward