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Quarterhill Inc T.QTRH

Alternate Symbol(s):  QTRHF | T.QTRH.DB

Technology Electronic Components
Quarterhill Inc. is a Canada-based company, which is engaged in providing of tolling and enforcement solutions in the intelligent transportation system (ITS) industry. The Company is focused on the acquisition, management and growth of companies that provide integrated, tolling and mobility systems and solutions to the ITS industry as well as its adjacent markets. The Company’s solutions include congestion charging, performance management, insights & analytics, analytics, toll interoperability, mobility marketplace, maintenance, e-screening, tire anomaly detection, multi-modal data, intersection management, and others. Its tolling includes roadside technologies, commerce and mobility platforms, audit and enforcement, and tolling services. Its safety and enforcement comprise commercial vehicles, automated enforcement, freight mobility, smart transportation, and data solutions. The Company’s wholly owned subsidiary is International Road Dynamics Inc.


TSX:QTRH - Post by User

Quarterhill Inc
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Post by GreatLakes1on May 01, 2013 9:04pm
106 Views
Post# 21326771

Patent App

Patent App

 

20130103684 TV WHITE SPACE DEVICES USING STRUCTURED DATABASES - A two-level database structure for use by unlicensed TVBD devices operating in TV white space comprises a central database and local databases. The central database comprises two sub-database: the central licensed database which maintains information about all licensed TV devices and the central unlicensed database which maintains information about unlicensed wireless devices operating in TV spectrum. The local database is created by each TVBD device or TVBD network when it initiates and it stores information related to all transmitters in the local area including location, power transmission levels, operating schedule, sensing results, backup channel information. The local databases communicate with central database to query it about licensed usage of TV spectrum and register with central database. The local databases communicate with each other to exchange information about channel usage, sensing results, transmission patterns and other information that will allow the local databases to negotiate coexistence without central coordinator. The locally implemented negotiation prevents the overloading of the central database.

 

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