Appeal No. 2000-0672
Application 08/838,027
improved by measuring and pre-storing signal delays associated
with one or more stages of positioning radio receivers. See
Appellants’ Specification Page 8, lines 29-32.
Independent Claim 1 present in the application is reproduced
as follows:
1. An apparatus for locating a mobile unit using a plurality of
positioning radio receivers, comprising:
a detector that detects a received radio signal from the
mobile unit at a corresponding positioning radio receiver;
a timing device that determines a detection time associated
with the received signal;
a storage device that stores a signal delay associated with
one or more receiver stages of the corresponding positioning
radio receiver; and
a processor that determines a time-of-arrival for the
received radio signal based on the detection time and the signal
delay, and
a mobile unit locator that processes time-of-arrivals at the
plurality of positioning radio receivers to determine the
position of the mobile unit.
References
The reference relied on by the Examiner is as follows:
Drebinger et al. 3,848,254 Nov. 12, 1974
2
Page: Previous 1 2 3 4 5 6 7 8 9 Next
Last modified: November 3, 2007