The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2004
Filed:
Apr. 14, 2000
Susan D. Hill, Rochester, NY (US);
Vicky Sinn, Rochester, NY (US);
Jean-Fabien Dupont, Chalon sur Saone, FR;
Eastman Kodak Company, Rochester, NY (US);
Abstract
A black and white silver halide motion picture sound recording film is disclosed comprising a transparent support bearing at least one silver halide emulsion layer and an antihalation layer comprising filter dye which is incorporated in the form of a solid particle dispersion which is readily solubilized and removed or decolorized upon standard processing in the D-97 process as specified in Kodak publication H-24, so as to result in a minimum density of 0.07 or less. A method for printing an optical analog sound track in a motion picture color print film which comprises a support bearing light sensitive yellow, magenta, and cyan dye forming layers sensitized respectively to the blue, green, and red regions of the electromagnetic spectrum is disclosed, said process comprising: exposing an analog sound track in a black and white silver halide motion picture sound recording film in accordance with the invention and processing the exposed recording film to form a sound track negative image having a minimum density of 0.07 or less; printing the sound track negative image on the color motion picture print film by exposing the green sensitive layer while not substantially exposing the red sensitive layer; and processing the exposed color print film to form a silver plus magenta dye sound track image which may be read effectively with both an IR sensitive sound track reader and a red light sensitive sound track reader. Sound recording films which provide low Dmins in accordance with the invention require fewer lumens of light to print both analog and digital sound tracks. Films in accordance with the invention are magenta dye plus silver sound track enabling and provide a step toward the elimination of sound developer in the print processing operation. An unexpected performance feature of films in accordance with the invention is improved latitude in attaining excellent Dolby Digital Stereo sound performance by better matching the image spread between the sound negative and the print film.