Title of Invention

A VEHICLE LOCATING UNIT WITH IMPROVED POWER MANAGEMENT METHOD

Abstract A vehicle locating unit with improved power management. A receiver receives a signal from a network of communication sources. A signal strength monitoring subsystem determines which of the communication sources are transmitting the strongest signals. A power management subsystem is responsive to the signal strength monitoring subsystem and is configured to alternatively enter sleep and wake-up modes, synchronize the wake-up mode to the communication source transmitting the strongest signal, and test the signal strength of at least one additional communication source according to a predefined sequence.
Full Text WO 2006/124925 PCT/US2006/018963
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A VEHICLE LOCATING UNIT WITH IMPROVED
POWER MANAGEMENT METHOD
FIELD OF THE INVENTION
This invention relates to vehicle recovery systems and, in particular, a vehicle
locating unit of such a system with improved power management techniques.
BACKGROUND OF THE INVENTION
The applicant's successful and popular vehicle recovery system sold under the
trademark LoJack® includes a small electronic vehicle locating unit (VLU) with a
transponder hidden within a vehicle, a private network of communication towers each
with a remote transmitting unit (RTU), one or more law enforcement vehicles
equipped with a vehicle tracking unit (VTU), and a network center with a database of
customers who have purchased a VLU. The network center interfaces with the
National Criminal Information Center. The entries of that database comprise the VTN
number of the customer's vehicle and an identification code assigned to the
customer's VLU.
When a LoJack® product customer reports that her vehicle has been stolen, the
VIN number of the vehicle is reported to a law enforcement center for entry into a
database of stolen vehicles. The network center includes software that interfaces with
the database of the law enforcement center to compare the VIN number of the stolen
vehicle with the database of the network center which includes VIN numbers
corresponding to VLU identification codes. When there is a match between a VIN
number of a stolen vehicle and a VLU identification code, as would be the case when
the stolen vehicle is equipped with a VLU, and when the center has acknowledged the

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vehicle has been stolen, the network center communicates with the RTUs of the
various communication towers (currently there are 130 nationwide) and each tower
transmits a message to activate the transponder of the particular VLU bearing the
identification code.
The transponder of the VLU in the stolen vehicle is thus activated and begins
transmitting the unique VLU identification code. The VTU of any law enforcement
vehicles proximate the stolen vehicle receive this VLU transponder code and, based
on signal strength and directional information, the appropriate law enforcement
vehicle can take active steps to recover the stolen vehicle. See, for example, US
Patent Nos. 4,177,466; 4,818,988; 4,908,609; 5,704,008; 5,917,423; 6,229,988;
6,522,698; and 6,665,613 all incorporated herein by this reference.
Since the VLU unit is powered by the vehicle's battery, power management
techniques must be enfployed in the VLU to ensure the VLU does not drain the
vehicle's battery. One prior technique employed by the applicant includes
programming the VLU to "wake up" and check for messages from the communication
towers only periodically, e.g., every 8 seconds for .2 seconds. The timing of the sleep
and wake-up modes was synchronized to the transmission schedule of one
communication tower. See US Patent No. 6,229,988.
But, if the vehicle equipped with the VLU so programmed moves out of the
transmission range of that tower, when the VLU wakes up, no signal will be received
from that tower. According to prior methods, the VLU must wake up for a longer
time in order to be sure to receive a tower transmission since the VLU has no memory
of which time slot the tower is likely to transmit. This results in increased power
consumption.

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BRIEF SUMMARY OF THE INVENTION
It is therefore an object of this invention to provide a vehicle locating unit with
improved power management technique.
It is a further object of this invention to provide such a vehicle locating unit
whose wake-up and sleep modes are synchronized to the communication source
transmitting the strongest signal.
It is a further object of this invention to provide such a vehicle locating unit
which continuously updates its memory to store the identity of one or more
communication towers with the strongest signals.
The subject invention results from the realization that a more effective power
management subsystem for a VLU is configured to alternately enter sleep and wake-
up modes, to synchronize the wake-up mode to the communication source (e.g.,
tower) transmitting the strongest signal, and to test the signal strength of at least one
additional communication source in sequence.
The subject invention, however, in other embodiments, need not achieve all
these objectives and the claims hereof should not be limited to structures or methods
capable of achieving these objectives.
The subject invention features a vehicle locating unit with improved power
management. A receiver receives a signal from a network of communication sources
and a signal strength monitoring subsystem determines which of the communication
sources are transmitting the strongest signals. The power management subsystem is
responsive to the signal strength monitoring subsystem and is configured to:
alternatively enter sleep and wake-up modes, synchronize the wake-up mode to the

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communication source transmitting the strongest signal, and test the signal strength of
at least one additional communication source according to a predefined sequence.
Typically, the power management subsystem is configured to test and store the
identity of two communication sources with the two strongest signals, switch to
synchronization with any communication source having a signal stronger than the
strongest signal of the two stored communication sources, and store the identity of
any communication source with a signal stronger than the signal of any previously
stored communication source.
In one embodiment, there are n (e.g., eight) communication sources each
transmitting a signal at a different time every n seconds. Preferably, the power
management system is configured to include a start-up mode wherein all
communication sources are tested. In one preferred embodiment, the power
management subsystem is implemented in a microcontroller which is configured to
power down the receiver during the sleep mode and to power up the receiver during
the wake-up mode. One example of a signal strength monitoring subsystem includes
a demodulation circuit embodied in a transceiver.
A method of checking messages from a network of communication sources in
accordance with this invention includes initially testing the signal strength of a
plurality of communication sources, storing the identity of the communication sources
with the two strongest signals, alternatively entering a sleep mode and a wake-up
mode, the wake-up mode synchronized to the communication source with the
strongest signal, testing the signal strength of one additional communication source,
switching synchronization to the additional communication source if said source
presents a signal stronger than the signal of the stored communication source with the

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strongest signal, and replacing the identity of any stored communication source if an
additional communication source tested in sequence presents a signal stronger than
the signal of said stored communication source.
For VLUs and other electronic receivers which receive a signal from a
network of communication sources, a signal strength monitoring subsystem
determines which of the communication sources are transmitting the strongest signals.
A power management subsystem is responsive to the signal strength monitoring
subsystem and is configured to: alternatively enter sleep and wake-up modes,
synchronize the wake-up mode to the communication source transmitting the
strongest signal, and test the signal strength of at least one additional communication
source to ensure the wake-up mode is synchronized to the communication source
transmitting the strongest signal.
One embodiment features a vehicle locating unit power management system
comprising a memory, and a controller configured to alternatively output sleep and
wake-up mode signals, store in said memory the identity of at least a first
communication source presenting the strongest signal, test the signal strength of at
least one different communication source during the wake-up mode, synchronize the
wake-up mode to the communication source identified in said memory, and update
the memory to store the identity of a different communication source presenting a
signal stronger than the first communication source.
BRIEF DESCRIPTION OF THE DRAWINGS
Other objects, features and advantages will occur to those skilled in the art
from the following description of a preferred embodiment and the accompanying

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drawings, in which:
Fig. 1 is a schematic block diagram showing the primary components,
associated with a vehicle recovery system in accordance with the subject invention;
Fig. 2 is a block diagram showing the primary components associated with a
vehicle locating unit in accordance with the subject invention;
Fig. 3 is a flow chart depicting the primary steps associated with one example
of the programming of the microcontroller of the vehicle locating unit shown in Fig. 2
as it relates to power management; and
Fig. 4 is a schematic timing diagram showing a time slot synchronization
pattern for an example of a communication network including eight communication
towers.
DISCLOSURE OF THE PREFERRED EMBODIMENT
Aside from the preferred embodiment or embodiments disclosed below, this
invention is capable of other embodiments and of being practiced or being carried out
in various ways. Thus, it is to be understood that the invention is not limited in its
application to the details of construction and the arrangements of components set forth
in the following description or illustrated in the drawings. If only one embodiment is
described herein, the claims hereof are not to be limited to that embodiment.
Moreover, the claims hereof are not to be read restrictively unless there is clear and
convincing evidence manifesting a certain exclusion, restriction, or disclaimer.
As discussed in the background section above, the applicant's successful and
popular vehicle recovery system sold under the trademark LoJack® includes a small
electronic vehicle locating unit (VLU) 10, Fig. 1, with a transponder 12 hidden within

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a vehicle 14, a private network of communication lowers 16 each with a remote
transmitting unit (RTU) 18, one or more law enforcement vehicles 20 equipped with a
vehicle tracking unit (VTU) 22, and network center 24.
When a LoJack® product customer reports that her vehicle has been stolen, the
VIN number of the vehicle is reported to law enforcement center 26 for entry into
database 28 of stolen vehicles. Network center 24 includes software that interfaces
with database 28 of law enforcement center 26 to compare the VIN number of the
stolen vehicle with database 30 of network center 24 which includes VIN numbers
corresponding to VLU identification codes. When there is a match between a VIN
number of a stolen vehicle and a VLU identification code, as would be the case when
stolen vehicle 14 is equipped with VLU 10, network center 24 communicates with the
RTUs 18 of the various communication towers 16 and each tower transmits a message
to activate transponder 12 of VLU 10 bearing the particular identification code.
Transponder 12 of VLU 10 in stolen vehicle 14, once activated, begins
transmitting a unique VLU identification code. VTU 22 of law enforcement vehicle
20 proximate stolen vehicle 14 receives this VLU transponder code and, based on
signal strength and directional information, the appropriate law enforcement vehicle
can take active steps to recover stolen vehicle 14.
VLU 10', Fig. 2, in accordance with the subject invention includes transceiver
40 or, in another example, a receiver without transmission capabilities. Signal
strength monitoring subsystem 42, in one embodiment, is a demodulator circuit on a
chip within transceiver 40 and outputs a signal identifying and characterizing the
signal strength of all signals received by transceiver 40 via antenna 44 from the
communication network and one or more communication towers 16, Fig. 1.

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Microcontroller 46, Fig. 2, (e.g., a Texas Instrument microcontroller model
No. MSP430) receives the output of subsystem 42, is programmed to evaluate the
signal strength of all signals received by transceiver 40, and is also programmed to
alternatively cause transceiver 40 to enter sleep and wake-up modes to save battery
power by outputting a signal to power supply unit circuitry 48 in accordance with the
flow-chart of Fig. 3. Memory 47, Fig. 2, is shown separate from controller 47 but
many microcontrollers, as is known by those skilled in the art, have internal memories
including the controller example above.
In the following example, there are eight communication sources or LoJack
towers A-H, Fig. 4, transmitting signals to VLU 10', Fig. 2. Each transmits a
synchronization signal at a different time t0-t7 each eight seconds and possibly a
message (in the case of a reportedly stolen vehicle) in which instance microcontroller
46, Fig. 2 would activate transponder 12.
But, transceiver 40, if continuously left on to check for such a message, would
more quickly drain the battery of the vehicle. According to the subject invention,
microcontroller 46 at start-up, step 60, Fig. 3, tests the signal strength of towers A-H
by analyzing the output of signal strength monitoring subsystem 42. In this test mode,
the signal strength of each tower is noted and if any signal carries a message, the
message is acted upon.
The identity of the two strongest tower signals is stored in memory 47, Fig. 2,
step 62, Fig. 3, and the wake-up mode is then synchronized, step 64, to the strongest
of these two signals. Next, the sleep mode is entered and when the wake-up mode is
activated in synchronization with the communication tower presenting the strongest
signal, the signal strength of the two previously stored towers is tested as is the signal

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strength of one additional communication tower, in sequence.
As an example, suppose towers A and B, Fig. 4, are transmitting the strongest
signals by virtue of their proximity to VLU 10, Fig. 2. If tower A's signal is assumed
to be stronger than tower B's signal, the wake-up mode synchronization is in
accordance with tower A's signal. Thus, in each cycle, (typical wake up times are 8
sec. apart), controller 46 would power up transceiver 40 by signaling power supply
unit circuit 48 at time t0, Fig. 4, and sleep between times t0-t7, steps 66-68. At the
next wake-up time, the signal strength of the two previously slored towers (A and B)
is tested for strength as is the signal strength of the next tower according to a
predefined sequence which, in this example, is tower C, step 70. In this way, if at any
time due to movement of the vehicle a different tower in the sequence A-H presents a
stronger signal than a) the tower upon which controller 46 synchronizes the wake-up
mode or b) the stored identity of the tower with the second strongest signal, the
identity of the new tower is stored in memory 47, Fig. 2, steps 72-74, Fig. 3, and
synchronization to the tower with the strongest signal is ensured at step 64.
Suppose, however, that tower C does not present a stronger signal than either
towers A or B and that the wake up and sleep modes are still synchronized to tower A
in step 66. At steps 68 and 70 towers A, B, and now D are tested and if tower D's
signal strength is not stronger than either tower A or B and once again the sleep mode
is entered, step 66. Upon entering the wake-up mode at step 68, still synchronized to
tower A, the signal strength of towers A, B, and now E is checked, step 70.
Now, if the signal strength of tower E is stronger than the signal strength of
tower B, but not tower A, the identity of tower E is stored in memory 47, Fig. 2 at
step 74, Fig. 3, replacing tower B. But at step 64 the wake-up mode is still

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synchronized to the strongest tower, namely tower A at steps 64-68.
So, next, the signal strengths of towers A, E, and F are tested, step 70; and
suppose at step 72 the signal strength of tower F is stronger than tower A and E but
tower A is still stronger than tower E. Now, synchronization will be according to
tower F at step 64 and at step 70, towers F, A, and G are tested, and so on.
In another example, imagine towers C and D initially present the strongest
first and second signals to the VLU. The wake up mode is initially synchronized to
tower C and the identity of towers C and D are stored in memory. After the first sleep
mode, the signal strength of towers C, D, and E are tested, and next towers C, D, and
F, and then towers C, D, and G, and then towers C, D, and H, and so on - one
additional tower during each subsequent wake-up mode. If during this wake-up/sleep
mode cycle, towers C and D remain the strongest two towers, synchronization
remains with tower C and the memory continues to store the identity of towers C and
D. If during the next cycle, when tower A is tested and is found to present a signal
stronger than tower D but not C, the memory is. updated to store the identity of towers
C and A, synchronization continues according to tower C's transmission schedule,
and during each subsequent wake-up mode the signal strength of towers C, A, and B;
C, A, and D; C, A, and E; C, A, and F... and so on is tested.
In this way, the identity of the towers which transmit the two strongest signals
is always stored and controller 46, Fig. 2 in sequence checks another tower in the
wake-up mode to maintain in storage 47, Fig. 2, the identity of the two towers
emitting the strongest signals. Also, controller 46 ensures the wake-up mode is
synchronized to only the tower emitting the strongest signal. Power is conserved but
now in a way which ensures no communication message from any tower in the

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network is missed. To enter the sleep mode, microcontroller 46 sends a signal to
power supply unit 48 which then powers down transceiver 40. To enter the wake-up
mode, microcontroller 46 sends a signal to power supply unit 48 which then again
provides power to transceiver 40 so that it can receive signals via antenna 44.
The example presented above in reference to Figs. 3-4 assumes eight towers in
a given region, continuous storage of the two strongest tower signals, and testing of an
additional tower in a specific sequence, hut this is an example only and not a
limitation of the subject invention: any number and combination of towers and storage
of tower combinations can be used. The example above also assumes that the power
management method of the subject invention applies to a VLU of a vehicle recovery
system but the invention hereof may find applicability to battery powered electronic
devices other than VLUs.
Thus, although specific features of the invention are shown in some drawings
and not in others, this is for convenience only as each feature may be combined with
any or all of the other features in accordance with the invention. Moreover, the words
"including", "comprising", "having", and "with" as used herein are to be interpreted
broadly and comprehensively and are not limited to any physical interconnection.
Also, any embodiments disclosed in the subject application are not to be taken as the
only possible embodiments. Other embodiments will occur to those skilled in the art
and are within the following claims.
In addition, any amendment presented during the prosecution of the patent
application for this patent is not a disclaimer of any claim element presented in the
application as filed: those skilled in the art cannot reasonably be expected to draft a
claim that would literally encompass all possible equivalents, many equivalents will

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be unforeseeable at the time of the amendment and are beyond a fair interpretation of
what is to be surrendered (if anything), the rationale underlying the amendment may
bear no more than a tangential relation to many equivalents, and/or there are many
other reasons the applicant can not be expected to describe certain insubstantial
substitutes for any claim element amended.
What is claimed is:

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CLAIMS
1. A vehicle locating unit with improved power management, the vehicle
locating unit comprising:
a receiver which receives a signal from a network of communication
sources;
a signal strength monitoring subsystem for determining which of the
communication sources are transmitting the strongest signals; and
a power management subsystem responsive to the signal strength
monitoring subsystem and configured to:
alternatively enter sleep and wake-up modes,
synchronize the wake-up mode to the communication source
transmitting the strongest signal, and
test the signal strength of at least one additional communication
source according to a predefined sequence.
2. The vehicle locating unit of claim 1 in which the power management
subsystem is configured to:
test and store the identity of two communication sources with the two
strongest signals,
switch to synchronization with any communication source having a
signal stronger than the strongest signal of the two stored communication sources, and
store the identity of any communication source with a signal stronger
than the signal of any previously stored communication source.

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3. The vehicle locating unit of claim 1 in which there are n
communication sources each transmitting a signal at a different time every n seconds.
4. The vehicle locating unit of claim 3 in which n is 8.
5. The vehicle locating unit of claim 1 in which the power management
system is configured to include a start-up mode wherein all communication sources
are tested.
6. The vehicle locating unit of claim 1 in which the power management
suhsystem is implemented in a microcontroller.
7. The vehicle locating unit of claim 1 in which the power management
subsystem is configured to power down the receiver during the sleep mode and to
power up the receiver during the wake-up mode.
8. The vehicle locating unit of claim 1 in which the signal strength
monitoring subsystem includes a demodulation circuit.
9. The vehicle locating unit of claim 8 in which the demodulation circuit
is a component of the receiver.
10. A method of checking messages from a network of communication
sources, the method comprising:

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initially testing the signal strength of a plurality of communication
sources;
storing the identity of the communication sources with the two
strongest signals;
alternatively entering a sleep mode and a wake-up mode, the wake-up
mode synchronized to the communication source with the strongest signal;
testing the signal strength of one additional communication source;
switching synchronization to the additional communication source if
said source presents a signal stronger than the signal of a stored communication
source with the strongest signal; and
replacing the identity of any stored communication source if an
additional communication source tested in sequence presents a signal stronger than
the signal of said stored communication source.
11, A system comprising:
a receiver which receives a signal from a network of communication
sources;
a signal strength monitoring subsystem for determining which of the
communication sources are transmitting the strongest signals; and
a power management subsystem responsive to the signal strength
monitoring subsystem and configured to:
alternatively enter sleep and wake-up modes,
synclrronizc the wake-up mode to the communication source
transmitting the strongest signal, and

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test the signal strength of at least one additional communication
source to ensure the wake-up mode is synchronized to the communication
source transmitting the strongest signal.
12. A vehicle locating unit with improved power management, the vehicle
locating unit comprising:
a receiver which receives a signal from a network of communication
sources;
a signal strength monitoring subsystem for determining which of the
communication sources are transmitting the strongest signals; and
a power management subsystem responsive to the signal strength
monitoring subsystem and configured to:
test and store the identity of two communication sources with
the two strongest signals,
alternatively enter sleep and wake-up modes, the wake-up
mode synchronized with the communication source transmitting the strongest
signal,
test the signal strength of at least one additional communication
source according to a predefined sequence,
switch to synchronization with any communication source
having a signal stronger than the strongest signal of the two stored
communication sources, and
store the identity of any communication source with a signal
stronger than the signal of any previously stored communication source.

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13. A vehicle locating unit power management system comprising:
a memory; and
a controller configured to:
alternatively output sleep and wake-up mode signals,
store in said memory the identity of at least a first
communication source presenting the strongest signal,
test the signal strength of at least one different communication
source during the wake-up mode,
synchronize the wake-up mode to the communication source
identified in said memory, and
update the memory to store the identity of a different
communication source presenting a signal stronger than the frrst
communication source.


A vehicle locating unit with improved power management. A receiver receives a signal from a network of communication
sources. A signal strength monitoring subsystem determines which of the communication sources are transmitting the
strongest signals. A power management subsystem is responsive to the signal strength monitoring subsystem and is configured to
alternatively enter sleep and wake-up modes, synchronize the wake-up mode to the communication source transmitting the strongest
signal, and test the signal strength of at least one additional communication source according to a predefined sequence.

Documents:

04400-kolnp-2007-abstract.pdf

04400-kolnp-2007-claims.pdf

04400-kolnp-2007-correspondence others.pdf

04400-kolnp-2007-description complete.pdf

04400-kolnp-2007-drawings.pdf

04400-kolnp-2007-form 1.pdf

04400-kolnp-2007-form 2.pdf

04400-kolnp-2007-form 3.pdf

04400-kolnp-2007-form 5.pdf

04400-kolnp-2007-international publication.pdf

04400-kolnp-2007-pct request form.pdf

4400-KOLNP-2007-(19-12-2011)-CORRESPONDENCE.pdf

4400-KOLNP-2007-ABSTRACT.pdf

4400-KOLNP-2007-AMANDED CLAIMS.pdf

4400-KOLNP-2007-ASSIGNMENT-1.1.pdf

4400-KOLNP-2007-ASSIGNMENT.pdf

4400-KOLNP-2007-CANCELLED PAGES.pdf

4400-KOLNP-2007-CORRESPONDENCE OTHERS 1.1.pdf

4400-KOLNP-2007-CORRESPONDENCE OTHERS 1.2.pdf

4400-KOLNP-2007-CORRESPONDENCE OTHERS-1.3.pdf

4400-KOLNP-2007-CORRESPONDENCE OTHERS-1.4.pdf

4400-KOLNP-2007-CORRESPONDENCE-1.5.pdf

4400-KOLNP-2007-CORRESPONDENCE-1.6.pdf

4400-KOLNP-2007-CORRESPONDENCE-1.7.pdf

4400-KOLNP-2007-CORRESPONDENCE.pdf

4400-KOLNP-2007-DESCRIPTION (COMPLETE).pdf

4400-KOLNP-2007-DRAWINGS.pdf

4400-KOLNP-2007-EXAMINATION REPORT REPLY RECIEVED.pdf

4400-KOLNP-2007-EXAMINATION REPORT.pdf

4400-KOLNP-2007-FORM 1.pdf

4400-KOLNP-2007-FORM 18-1.1.pdf

4400-KOLNP-2007-FORM 18.pdf

4400-KOLNP-2007-FORM 2.pdf

4400-KOLNP-2007-FORM 26-1.1.pdf

4400-KOLNP-2007-FORM 26.pdf

4400-KOLNP-2007-FORM 3-1.1.pdf

4400-KOLNP-2007-FORM 3.pdf

4400-KOLNP-2007-GRANTED-ABSTRACT.pdf

4400-KOLNP-2007-GRANTED-CLAIMS.pdf

4400-KOLNP-2007-GRANTED-DESCRIPTION (COMPLETE).pdf

4400-KOLNP-2007-GRANTED-DRAWINGS.pdf

4400-KOLNP-2007-GRANTED-FORM 1.pdf

4400-KOLNP-2007-GRANTED-FORM 2.pdf

4400-KOLNP-2007-GRANTED-FORM 3.pdf

4400-KOLNP-2007-GRANTED-FORM 5.pdf

4400-KOLNP-2007-GRANTED-SPECIFICATION-COMPLETE.pdf

4400-KOLNP-2007-INTERNATIONAL PUBLICATION.pdf

4400-KOLNP-2007-INTERNATIONAL SEARCH REPORT & OTHERS.pdf

4400-KOLNP-2007-INTERNATIONAL SEARCH REPORT.pdf

4400-KOLNP-2007-OTHERS-1.1.pdf

4400-KOLNP-2007-OTHERS.pdf

4400-KOLNP-2007-PA.pdf

4400-KOLNP-2007-PCT REQUEST 1.1.pdf

4400-KOLNP-2007-PETITION UNDER RULE 137-1.1.pdf

4400-KOLNP-2007-PETITION UNDER RULR 137.pdf

4400-KOLNP-2007-REPLY TO EXAMINATION REPORT.pdf

abstract-04400-kolnp-2007.jpg


Patent Number 255866
Indian Patent Application Number 4400/KOLNP/2007
PG Journal Number 13/2013
Publication Date 29-Mar-2013
Grant Date 26-Mar-2013
Date of Filing 16-Nov-2007
Name of Patentee LOJACK OPERATING COMPANY, LP
Applicant Address 200 LOWDER BROOK DRIVE, WESTWOOD, MA
Inventors:
# Inventor's Name Inventor's Address
1 FRANK ROMANO 6 JASPER STREET WESTBOROUGH, MA 01581
2 SON NGUYEN 44 PEMBROKE STREET MARLBOROUGH, MA 01752
3 JESSE RHODES 291 PROSPECT STREET FRANKLIN, MA 02038
4 PHILIP GRAHAME CREWE 3 GRANTA VALE LINTON, CAMBRIDGESHIRE CB1 6LB
5 DANIEL JOHNATHAN FINCHLEY CLETHEROE FLAT 4 GRANTHAMS COURT, DE FREVILLE ROAD GREAT SHELFORD, CAMBRIDGE GB2 5LH
6 MARK MARSDEN 38 LAMBERT CROSS SAFFRON WALDON, ESSEX CB10 2DP
7 STEVEN WALTER GREENDALE 15 BOSWORTH ROAD CAMBRIDGE CB1 8RG
8 NIGEL JAMES WATSON 14 MILL LANE WHITTLESFORD, CAMBRIDGE CB2 4NE
9 IAN CHRISTOPHER STROUD "KNOTTY OAK," FRAMBURY LAND NEWPORT, ESSEX CB11 3PY
10 TIMOTHY DAVID HOWE 76 BIRCH TREES ROAD GREAT SHELFORD, CAMBRIDGESHIRE CB2 5AW
11 GERARD EDWARD SMITH 21 STANDRUMS GREAT DUMMOW, ESSEX CM6 1TY
12 SAMPATH KRISHNA 115 MAIN STREET WINCHESTER, MA 01890
PCT International Classification Number H04B 1/16
PCT International Application Number PCT/US2006/018963
PCT International Filing date 2006-05-17
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 11/131,847 2005-05-18 U.S.A.