Appeal No. 95-3175
Application 08/124,361
processor responsive to said mileage sensor and manual input, having a microcomputer, a real time clock,
and random access memory," as recited in claim 15. Whitaker discloses (column 7, lines 64, to column
8, line 8):
The calculated odometer reading may, however, vary somewhat from the reading of the mechanical
odometer within the vehicle. Therefore, to prevent loss of confidence by the operator in the data
stored by the apparatus, microprocessor 60 is programmed to compare the next odometer reading
entered through keypad 12 with that stored in data file 112, and to calculate therefrom a correction
factor that is applied to all calculated updates of vehicle mileage until the next odometer reading is
manually entered. In this manner, the calculated values will more closely correspond with values
indicated by the mechanical odometer.
Therefore, Whitaker teaches a calibration system.
Gulas shows a device for recording distances traveled on personal and business use including a
vehicle speed sensor. A mileage sensor attached to the vehicle is connected to the device for recording
miles driven (column 3, lines 27-45). The device in Gulas "can include input keys for inputting details of
gas purchase and amount to keep an accurate record of the total costs for later division into the separate
characteristics" (column 2, lines 32-35); see also column 4, lines 35-41. Thus, Gulas provides for
recording "vehicle travel mileage and vehicle operating expenses." The mileage and expenses can be
characterized as business or non-business for tax purposes (e.g., column 3, lines 9-11; column 4, lines
26-34).
Differences between the prior art
and the claimed invention
- 10 -
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: November 3, 2007