1
Edmond J Helstab, Jeffrey L Fairless, Michael C G Lee, Neal T Cowan, Jonathan Crone, Edward L Pugh, Robert E Bradley: Desktop docking station for use with a wireless telephone handset. Nortel Networks Corporation, Jean Pierre Fortin, Dallas F Smith, June 6, 2000: US06073031 (170 worldwide citation)

A telephone base unit for use with a mobile telephone handset comprises means for interfacing the handset with the base unit for enabling user definable data entry key settings of the handset to be downloaded and emulated at the base unit such that when interfaced with the base unit, the mobile tele ...


2
Michael C G Lee: Multiple mode capable radio receiver device. Northern Telecom, January 2, 2001: US06169733 (106 worldwide citation)

A mobile handset is able to receive and transmit to base stations operating in compliance with different standards, for example CDMA, TDMA or AMPS. The mobile handset converts the received signal down to baseband and digitizes only a single channel at a time rather than the whole band. The channel c ...


3
Michael C G Lee: Firewall for real-time internet applications. Nortel Networks, Withrow & Terranova PLLC, May 16, 2006: US07047561 (67 worldwide citation)

The present invention relates to a firewall for use in association with real-time Internet applications such as Voice over Internet Protocol (VoIP). The firewall applies an application proxy to the signaling and control channels and a packet filter to the bearer channels. One of the features of hybr ...


4
Michael C G Lee, Francis Durufle, Bill Allan: Method and apparatus for digital cellular internet voice communications. Nortel Networks, January 25, 2005: US06847632 (51 worldwide citation)

A digital cellular handset capable of supporting voice communications over the Internet, in addition to the digital cellular handset's usual mode of voice communications over the digital cellular network/public telephony network is disclosed. Internet protocol software such as H.323, Session Initiat ...


5
Michael C G Lee, Arlan J Anderson, Michael J Craven, Henry C Mok: Portable wireless communication device having an extendible section. Nortel Networks, Dennis R Haszko, Smart & Biggar, June 5, 2001: US06243595 (42 worldwide citation)

A portable cellular telephone comprising a main body for housing at least a microcontroller, a display screen, an audio receiver and a microphone. An extendible section that houses a number of function keys such as the standard telephone keys, slides out of the main body to expose the display screen ...


6
Michael C G Lee: Line interface circuit. Northern Telecom, Smart & Biggar, January 12, 1993: US05179586 (28 worldwide citation)

An interface unit for interconnecting a telephone central switch to a personal computer. The interface unit receives power and data from the switch over a two wire twisted pair. The data is in a half duplex T.C.M. format and is transformed into standard digital data with the logic "1" and "0" being ...


7
Brian R Parisien, Michael C G Lee: Encryption key exchange protocol. Nortel Networks, September 21, 2004: US06795555 (11 worldwide citation)

The calculation of encryption keys is a processor intensive undertaking that is not suited for “thin client” terminal devices typically used for session applications in an Internet Protocol network. The present invention provides an encryption scheme for use with such terminal devices for the secure ...


8
Michael C G Lee, Frederic Simard: Method and apparatus for delivering non-obtrusive data services by spread spectrum modulation. Nortel Networks, September 14, 2004: US06792030 (3 worldwide citation)

The invention provides a method and apparatus for establishing a non-obtrusive data channel within a voice communication channel to transmit data during an audio transmission without disruption. This audio transmission can be for example, an audio conversation between a first and a second party. The ...


9
Michael C G Lee: Call features for automatic call distribution system. Mortel Networks, February 8, 2011: US07885400

Call features for an Automatic Call Distribution (ACD) system implemented within a packet-based telephone environment are disclosed. Within a packet-based network, data messages are transferred between the ACD system and customer telephone stations while the customer waits for an attendant to become ...


10
Michael C G Lee, Frederic Simard: Method and apparatus for delivering non-obtrusive data services by spread spectrum modulation. Docket Clerk, May 8, 2003: US20030086478-A1

The invention provides a method and apparatus for establishing a non-obtrusive data channel within a voice communication channel to transmit data during an audio transmission without disruption. This audio transmission can be for example, an audio conversation between a first and a second party. The ...