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Igor Kajetan Czajkowski
Researcher at Nortel
Publications - 10
Citations - 259
Igor Kajetan Czajkowski is an academic researcher from Nortel. The author has contributed to research in topics: Digital subscriber line & Customer-premises equipment. The author has an hindex of 7, co-authored 10 publications receiving 259 citations.
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Patent
Communication system architecture and operating methodology providing a virtual neighborhood network
TL;DR: In this paper, the authors propose an end-to-end encryption algorithm between an originating gateway and an access multiplexor (30) in a virtual neighborhood network (VN) comprising several gateways.
Patent
Voice over digital subscriber line call redirection for lifeline service
Christopher Tate,Jonathan Beattie,Roger James Williamson,Igor Kajetan Czajkowski,Mark Bridger +4 more
TL;DR: In this article, customer premises equipment for a telecommunications DSL subscriber is adapted to provide a lifeline voice service under a fault condition, e.g. a power failure at the subscriber station.
Patent
Wireline communication system and method of frequency allocation therein
TL;DR: In this article, the authors proposed to partition the frequency spectrum based on an estimate of the loop length of a subscriber unit (CPE) modem from an exchange (LTE) modem.
Patent
Wireline modem, communication system and method of setting-up such
TL;DR: In this article, the authors propose a line balance assessment for each sub-channel carrier within the system to avoid spurious energy radiation from a wireline communication resource supporting data over voice, such as in xDSL.
Patent
ENHANCED PERFORMANCE VoDSL
TL;DR: In this paper, a Digital Access System (DAS) Customer Premises Equipment (CPE) consisting of an internal packet switched network comprising a switch; a DAS modem connected to said internal network and arranged such that in use the internal network is coupled to an external packet switched networks by a link over an access network; a controller arranged to control said switch in order to establish packet transfer paths between said modem and one or more internal network interfaces to customer appliances connected to the CPE in order for complete calls between said appliances and entities on the external network.