1
Ephraim Arnon: Customer premises ADSL signal distribution arrangement. Northern Telecom, R John Haley, April 18, 1995: US05408260 (175 worldwide citation)

A plurality of ADSL (asymmetric digital subscriber line) terminals are coupled to the coaxial cable of a cable television distribution arrangement. Each ADSL terminal is coupled to a respective ADSL path and a respective customer premises telephone line for coupling of telephone signals. Each ADSL t ...


2
Tapio H Murto, Stephen D Alvey: Interface circuits for connection to non-dedicated telephone lines. Northern Telecom, R John Haley, March 29, 1983: US04378470 (166 worldwide citation)

Receive and transmit paths, for example for frequency shift keyed signals, are coupled to an interface circuit including a line transformer which is permanently connected to the telephone line via a high impedance. The effect of this high impedance on received signals is counteracted by an amplifier ...


3
Timothy John Wood, John C Anderson, Shirley Ann Milaknis: Methods of and apparatus for providing telephone call control and information. Nortel Networks Corporation, R John Haley, July 18, 2000: US06091808 (148 worldwide citation)

Telephone call management is provided via a computer network (web) facility which can be remotely accessed by subscribers using web browsers. The web facility includes an information database for storing personal telephone directories and call logs, and a telephone call control system coupled to a t ...


4
Yehuda J Aminetzah: Method of controlling scrambling and unscrambling in a pay TV system. Northern Telecom, R John Haley, June 14, 1983: US04388643 (144 worldwide citation)

Scrambling of a video signal in a pay TV system is effected in dependence upon a first variable which is changed recurrently, e.g. monthly, and a second variable which changes from field to field. For each field the second variable and other data are transmitted simultaneously with the video signal ...


5
David S Drynan, David M Baker: Transmitting sequence numbers of information in a packet data transmission system. Northern Telecom, R John Haley, October 14, 1986: US04617657 (142 worldwide citation)

In a packet data transmission system, correctly received information packets are acknowledged by piggybacking their sequence numbers onto information packets being transmitted. The control field of each information packet includes a bit which indicates whether or not there is a piggybacked acknowled ...


6
Alan F Graves, Robert C Dittburner, Barry B Hagglund: Video signal distribution system. Northern Telecom, R John Haley, Dallas F Smith, February 19, 1991: US04994909 (127 worldwide citation)

A signal distribution system is disclosed for distributing television program signals from a central location to a plurality of subscriber locations via respective optical fibers. At the central location, 4 of 64 signals are selected and multiplexed for delivery to each subscriber location. At each ...


7
Adnan Abu Dayya: Diversity path co-channel interference reduction. Northern Telecom, R John Haley, November 17, 1998: US05838742 (116 worldwide citation)

Diversity path signals, each comprising time division multiplexed symbols in a time slot including known symbols, are combined with respective weights to reduce co-channel interference. Initial weights are determined, using a window on the known symbols, to optimize signal to interference plus noise ...


8
Adnan Abu Dayya: Determining SINR in a communications system. Nortel Networks Corporation, R John Haley, November 23, 1999: US05991273 (109 worldwide citation)

Diversity path signals, each comprising time division multiplexed symbols in a time slot including known symbols constituting a reference signal, are combined with respective weights to reduce co-channel interference. The weights are determined, from a correlation matrix and a reference signal corre ...


9
Wayne D Grover: Terminal address assignment in a broadcast transmission system. Northern Telecom, R John Haley, July 14, 1987: US04680583 (107 worldwide citation)

In a broadcast transmission system, in which in normal operation messages and terminal addresses are transmitted between a master station and a plurality of terminals each having an assigned address, the master station initially assigns the addresses to the terminals. In order to isolate each termin ...


10
Gordon G Rabjohn: Balanced planar transformers. Northern Telecom, R John Haley, March 28, 1989: US04816784 (105 worldwide citation)

A monolithic transformer comprises two windings arranged in a plane with conductors of the windings interleaved with and crossing one another, whereby each winding is symmetrical with respect to a center point of the winding, to which a center tap connection can be made. The conductors of the windin ...