Appeal No. 2002-1866 Page 7 Application No. 09/346,814 From our perspective, the only suggestion to combine the references in the manner proposed by the examiner is found in the hindsight afforded one who first viewed the appellants’ disclosure. It therefore is our conclusion that the combined teachings of Wieder and Shisgal fail to establish a prima facie case of obviousness with regard to the subject matter recited in claim 21, and we will not sustain the rejection of claim 21 or of claims 23-35, which depend therefrom. Independent claim 36 is directed to a device for assisting the driver of a vehicle during reverse travel. It contains all of the limitations recited in claim 21, and also stands rejected as being unpatentable over Wieder and Shisgal. For the reasons set forth above in discussing the rejection of claim 21, we also will not sustain the rejection of independent claim 36 and dependent claims 38, 39, 42-45 and 49-54. Independent apparatus claim 55 also stands rejected as being unpatentable over Wieder and Shisgal. Claim 55 recites a distance sensor, an evaluating device which emits signals based upon signals received from the distance sensor, and a mechanism for influencing the speed of the vehicle in response to the evaluation signals, wherein when the distance between the vehicle and the obstacle is great, the speed of the vehicle is determined from a signal produced by a rotational speed sensor which monitors the rotational speed of a wheel of the vehicle; and wherein when the vehicle is in the immediate vicinity of the obstacle, the speed of the vehicle is determined from the rate of change of the distance signal with respect to time.Page: Previous 1 2 3 4 5 6 7 8 9 10 11 NextLast modified: November 3, 2007