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Judge Sleet: Claim Construction Order

In Mark IV Industries Corp. v. Transcore Holdings, Inc., et al., C.A. No. 09-418-GMS (D. Del. March 28, 2011), Judge Sleet recently construed the following terms relating to U.S. Patent Nos. 5,164,732; 5,196,846; 5,192,954; and 6,219,613:

The ‘732 Patent
“a [] triggering electromagnetic field”
“a [] transponder capture regiion limited to a first lane of the multi-lane roadway”
“second monitoring a frequency of a second return information signal during a second information interval, different from said first information”
“determining that said one lane travelled by said vehicle is said first lane, when said first monitoring step receives said first return signal during said first information interval”
The ‘846 Patent
“data signal processing means”
“means at said interrogator for periodically transmitting trigger pulses”
“trigger pulse[]”
“means, comprising storage means at said transponder, responsive to a first received one of said trigger pulses for transmitting a first data message derivevd from data contained by said storage means at the time that said first trigger pulse is received”
“means at said interrogator for receiving said first data message and
responsive to the receipt thereof for generating and transmitting a second data
message”
“means at said transponder for receiving said second data message and for
storing data derived from said second data message in said storage means”
“means at said interrogator for transmitting a second trigger pulse a
predetermined period of time after said first trigger pulse, the predetermined period of
time being of sufficient length to permit the storage in said storage means of data
derived from said second message”
“a predetermined period of time after said first trigger pulse”
“a predetermined period of time after the transmission of said
second data message”
“the predetermined period of time being of sufficient length to permit the
storage in said storage means of data derived from said second message”
“means at said transponder for transmitting a third data message responsive
to said trigger pulse”
“means for analyzing said third data message to determine the proper
operation by said transponder in response to the said second data message”
“determining proper operation”
“means for deriving said second data message from said first data message”
“means for deriving said second data message from said first data message
and data relating to roadway use tolls”
“storage means” is a means-plus-function term. The disclosed function is
“storing data”
“antenna means for transmitting and receiving signals conveyed by
electromagnetic radiation”
“means for receiving a first data message from said transponder and
responsive to the receipt thereof for generating and transmitting a second data
message via said antenna means”
“means for transmitting a second trigger pulse via said antenna means a
predetermined period of time after the transmission of said second data message”
“means for receiving a third data message via said antenna means and for
determining from the content of said third data message the proper operation by said
transponder in response to said second data message”
The ‘954 Patent
“transponder generated electromagnetic signals”
“a lane”
“an antenna array generally extending over said roadway”
“means electrically coupling said interrogator and array for transmitting
radio frequency signals therebetween”
“means mounting said radiating elements over and above said roadway”
“means configuring said elements, said configuration generating a radiation
field, said field defining a transponder capture zone over and above said roadway and extending across said roadway width”
“linear microstrip patch elements”
The ‘613 Patent
“second predetermined coverage zone that partially overlaps the first
coverage zone”
“processing means responsive to the antennas to count the number of
periodic data signals received by each of the antennas from the transponder during a
time period and determine based on the count a probable location of the vehicle”
“a time period”
“processing means is configured to commence the time period when at least
one of the antennas first receives a data signal from the transponder”


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