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(12) Patent Application: | (11) CA 2469377 |
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(54) English Title: | WIRELESS SCREEN SYSTEMS AND PROTOCOLS |
(54) French Title: | SYSTEMES ET PROTOCOLES DE FILTRAGE SANS FIL |
Status: | Deemed Abandoned and Beyond the Period of Reinstatement - Pending Response to Notice of Disregarded Communication |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | |
(74) Associate agent: | |
(45) Issued: | |
(22) Filed Date: | 2004-05-31 |
(41) Open to Public Inspection: | 2005-11-30 |
Examination requested: | 2009-05-04 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | None |
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Screening systems and protocols are disclosed that are used to screen and
identify objects
with RFID tags. The screening categorization, RF transmitting-receiving
methods and
communication protocols are dynamically programmable. An object screening
system
includes one control centre, one or more broadcast means, one or more tags and
one or
more detectors. The control centre stores registered tag data including tag
IDs and
attached object properties, categorizes all tags based on detection requests,
and
broadcasts commands to tags and detectors, through the broadcast means, in
order to set
tags' status and operating mode, and synchronize detectors' settings. A tag
reports its
status to a detector in its vicinity, and the detector selectively sets up a
two-way
communication with the tag and outputs detected results from the tag.
Communication
protocols are disclosed that cipher and decipher RF signal massages from a
control centre
to tags and detectors, from a tag to a detector, and communications between a
tag and a
detectors, so as to make the object screening system confidential, robust and
reliable.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
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Please note that "Inactive:" events refers to events no longer in use in our new back-office solution.
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Description | Date |
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Application Not Reinstated by Deadline | 2012-05-31 |
Time Limit for Reversal Expired | 2012-05-31 |
Inactive: Adhoc Request Documented | 2012-03-02 |
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice | 2011-05-31 |
Amendment Received - Voluntary Amendment | 2009-07-15 |
Letter Sent | 2009-06-02 |
All Requirements for Examination Determined Compliant | 2009-05-04 |
Request for Examination Requirements Determined Compliant | 2009-05-04 |
Request for Examination Received | 2009-05-04 |
Application Published (Open to Public Inspection) | 2005-11-30 |
Inactive: Cover page published | 2005-11-29 |
Inactive: Correspondence - Formalities | 2005-08-16 |
Amendment Received - Voluntary Amendment | 2005-08-16 |
Inactive: IPC assigned | 2004-07-22 |
Inactive: First IPC assigned | 2004-07-22 |
Application Received - Regular National | 2004-07-07 |
Filing Requirements Determined Compliant | 2004-07-07 |
Inactive: Filing certificate - No RFE (English) | 2004-07-07 |
Small Entity Declaration Determined Compliant | 2004-05-31 |
Abandonment Date | Reason | Reinstatement Date |
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2011-05-31 |
The last payment was received on 2010-03-16
Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following
Please refer to the CIPO Patent Fees web page to see all current fee amounts.
Fee Type | Anniversary Year | Due Date | Paid Date |
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Application fee - small | 2004-05-31 | ||
MF (application, 2nd anniv.) - small | 02 | 2006-05-31 | 2006-03-15 |
MF (application, 3rd anniv.) - small | 03 | 2007-05-31 | 2007-03-12 |
MF (application, 4th anniv.) - small | 04 | 2008-06-02 | 2008-03-17 |
MF (application, 5th anniv.) - small | 05 | 2009-06-01 | 2009-05-04 |
Request for examination - small | 2009-05-04 | ||
MF (application, 6th anniv.) - small | 06 | 2010-05-31 | 2010-03-16 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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CHUNLI DONG |
Past Owners on Record |
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None |