1
Michael Anthony Gell, Michael Robert Wistow Manning, Jose Luis Fernandez Villacanas Martin: System for selective communication connection based on transaction pricing signals. British Telecommunications public company, Nixon & Vanderhye P C, September 1, 1998: US05802502 (507 worldwide citation)

A communications network in which user equipment is provided with a selecting device which communicates with a pricing device in service provider equipment. When communications or other services are required, the selection circuit polls a plurality of service providers, and the pricing circuit of ea ...


2
John Stuart Bladen, Alan Patrick Anderson: Position location system. British Telecommunications public company, Nixon & Vanderhye P C, June 22, 1999: US05913820 (360 worldwide citation)

Methods and apparatus are provided for locating the position, preferably in three dimensions, of a sensor by generating magnetic fields which are detected at the sensor. The magnetic fields are generated from a plurality of locations and, in one embodiment of the invention, enable both the orientati ...


3
Hilary Lyndsay Williams: Portable computers. British Telecommunications public company, Nixon & Vanderhye P C, October 18, 2005: US06956564 (274 worldwide citation)

A portable computer arranged to rest comfortably in the hand has a small display screen. Accelerometers capable of detecting movement of the pen with respect to gravity provide input to a microcontroller which selects a response from a number of viewing modes. The pen may be held in either hand and ...


4
John W Ballance: Optical communications network. British Telecommunications, Nixon & Vanderhye, December 11, 1990: US04977593 (257 worldwide citation)

A passive, all optical communications network is provided in which a single optical source in a central station serves many outstations (e.g. telephones in customers' premises). Time division multiplexed optical signals from a laser source are transmitted along a single optical fibre (14) from a cen ...


5
Si T S Chia: Location determination and handover in mobile radio systems. British Telecommunications public company, Nixon & Vanderhye, February 28, 1995: US05394158 (256 worldwide citation)

A handover initiation system for a cellular radio network comprises means for determining both the distance of a mobile user from a cell base station based on propagation delay techniques and means for measuring the signal strength to determine the path taken by the mobile user. In a busy area micro ...


6
John R Fox, Edwin J Powter, William K Ritchie: Wideband cable network. British Telecommunications public company, Nixon & Vanderhye, November 24, 1987: US04709418 (251 worldwide citation)

In an interactive wideband cable network in which several wideband services, such as television or video signals, can be provided simultaneously from a central service position to a remote wideband switch to which several customers are connected, the central service position is connected to the wide ...


7
Michael Graham Burt: Optical fibre with quantum dots. British Telecommunications public company, Nixon & Vanderhye P C, March 9, 1999: US05881200 (248 worldwide citation)

An optical fiber includes a tubular glass cladding with a central opening filled with a colloidal solution of quantum dots in a support medium. The quantum dots may be caused to produce luminescence in response to input optical radiation, for example to produce optical amplification or laser radiati ...


8
Andrew James Motley, Anthony Gerard Chadney: Communications system. British Telecommunications Public Company, Nixon & Vanderhye P C, October 28, 1997: US05682256 (246 worldwide citation)

A communications system has a base center with radio transceivers for providing a number of radio frequency (RF) communications links and a plurality of fixed radio ports through which RF signals can be transmitted and received over the air. A fiber optic network interconnects the RF transceivers an ...


9
Alan E Owen, Anthony J Snell, Janos Hajto, Peter G Lecomber, Mervyn J Rose: Amorphous silicon memory. British Telecommunications public company, Nixon & Vanderhye, November 1, 1994: US05360981 (246 worldwide citation)

An analogue memory device comprises a layer of doped amorphous silicon located between a first conducting layer metal contact layer of V, Co, Ni, Pd, Fe or Mn. It has been found that the selection of one of these metals as the contact exerts a significant effect on the properties of the device, e.g. ...


10
Paul Astiz, Fil Feit, Wai Tim B Chau: World wide web navigational mapping system and method. British Telecommunications, Nixon & Vanderhye P C, March 7, 2000: US06035330 (242 worldwide citation)

An Internet navigational mapping system and method provides a user, browsing through various informational resources provided at various World Wide Web site locations supported by the Internet, with a graphical representation of the structure of the web site to permit the user to navigate through th ...



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