Appeal No. 2005-0261 Application No. 09/682,473 reason why the artisan would have turned to Matsumoto to modify the clock signals of Wissell. Finally, Wissell specifically discloses the generation of clock signals which are quadrature related, yet the examiner proposes to modify Wissell so that the clock signals are 180 degrees out of phase instead of 90 degrees out of phase. The examiner has offered no logical basis for changing this key feature of the Wissell clock signal generator. 7Page: Previous 1 2 3 4 5 6 7 8 9 NextLast modified: November 3, 2007