Appeal No. 1999-0301 Application No. 08/156,541 15. A digital display system comprising: a digital display device for receiving a series of binary image data words and displaying an image representative of said data words, each said image data word comprised of at least two bits, each said bit in said image data words displayed sequentially for a display duration representative of the weight of said bit; at least one input image modification signal representing a desired image contrast; and a display system controller, said system controller oppositely altering the display duration of at least two said bits based on said image modification signal. The references relied upon by the examiner are: Popowski et al. (Popowski) 4,709,230 Nov. 24, 1987 Kohgami et al. (Kohgami) 5,187,578 Feb. 16, 1993 Yomiya JP 2-212881 Aug. 24, 1990 Claims 21, 22, 24 and 25 stand rejected under 35 U.S.C. § 112, second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the applicants regard as the invention. Claims 15 and 23 stand rejected under 35 U.S.C. § 103(a) as being unpatentable over Kohgami. Claim 19 stands rejected under 35 U.S.C. § 103(a) as being unpatentable over Kohgami in view of Popowski. 2Page: Previous 1 2 3 4 5 6 NextLast modified: November 3, 2007