Appeal No. 95-3380 Application 08/109,572 DECISION ON APPEAL Appellants have appealed to the Board from the examiner’s final rejection of claims 33 to 46, which are all the claims that remain in the application. Representative claim 33 is reproduced below: 33. A method of displaying objects on a computer graphics system having a display with at least one block of pixels, said block including at least two pixels therein, comprising the steps of: displaying, by the pixels within said block, at least a portion of a first object; storing a maximum depth value for the block of pixels displaying the first object; computing a single depth value for a second object to be displayed by at least one pixel in said block; and determining, in one comparison only between said maximum depth value and said single depth value, whether all the pixels in the block will continue to display the first object. The following reference is relied on by the examiner: Heckel 4,697,178 Sep. 29, 1987 Claims 33 to 46 stand rejected under 35 U.S.C. § 103 as being obvious over Heckel alone. Rather than repeat the positions of the appellants and the examiner, reference is made to the Brief and the Answer for the respective details thereof. 2Page: Previous 1 2 3 4 5 6 7 NextLast modified: November 3, 2007