Appeal 2007-1464
Application 10/276,285
6. The values ascertained by the brake pedal sensors are transmitted as
sensor signals to at least three arithmetic control units (or CPUs) 18, 19, and 20.
All three arithmetic units calculate the braking demand of the drive from the sensor
signals by the same rules and the same memorized characteristic curves (Zittlau,
col. 4, ll. 9-14).
7. The calculated values are compared with one another in the three
arithmetic units. If they are identical to one another within predetermined, close
tolerances, then they represent the braking moment demanded by the driver
(Zittlau, col. 4, ll. 15-19).
8. The braking moments generated in the form of control signals in the
central controller 10 are transmitted, in the case of normal, unimpeded braking
operations, to the brake actuators 4 via a bus driver 24 and the first data
transmission channel 12 (Zittlau, col. 4, ll. 36-40).
9. Data is exchanged between the CPUs 18 and 19 which makes it
possible for the electronic braking moment demands calculated in the first CPU 18
as well as the state of the CPU 18 to be monitored by the second CPU 19 (Zittlau,
col. 4, ll. 54-59).
PRINCIPLES OF LAW
“A claim is anticipated only if each and every element as set forth in the
claim is found, either expressly or inherently described, in a single prior art
reference.” Verdegaal Bros. v. Union Oil Co. of California, 814 F.2d 628, 631,
2 USPQ2d 1051, 1053 (Fed. Cir. 1987), cert. denied, 484 U.S. 827 (1987).
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