1
David M Goodman, Jayne Brady, Chris Murton: Semi transparent tributary for synchronous transmission. Nortel Networks, Barnes & Thornburg, October 21, 2003: US06636529 (47 worldwide citation)

An interface for converting a variety of incoming digital signals into SDH/SONET format for transmission on a synchronous digital network, by identifying the line code of the incoming digital signal, without identifying the information for OSI layer 2 or 3 processing, i.e. format of each packet. Hea ...


2
Gareth Dalzell, David M Goodman: Synchronization in a telecommunications network. Nortel Networks, Barnes & Thornburg, August 12, 2003: US06606362 (27 worldwide citation)

A synchronous digital communications network incorporating a number of nodes arranged in path protected rings and has two or more timing reference sources. The reference sources each allocated an artificial ranking of unique quality level values and these quality level values are transmitted as a se ...


3
David M Goodman, Carlo Capaldo: Serial bus system. Northern Telecom, Lee Mann Smith McWilliams Sweeney & Ohlson, December 26, 1995: US05479395 (20 worldwide citation)

A multi-master serial bus system supporting, for example, up to 32 masters, and usable in applications requiring high-speed communications within a shelf. A plurality of nodes (2, 3, 4, 5) are interconnected by a highway (1) over which data is transmitted between the nodes. Each node has access cont ...


4
David M Goodman: Beam-index color television displays. June 29, 1976: US03967315 (10 worldwide citation)

Beam-index line-screen television display systems are disclosed for generating multi-color images throughout the size range from small direct view cathode ray tubes to projection type wall screen configurations. The image in the small screen display is generated by a scanning electron beam whereas t ...


5
John Courtney, David M Goodman, Mark Carson: Hitless protection switching. Nortel Networks, Barnes & Thornburg, January 23, 2007: US07167442 (6 worldwide citation)

The invention provides a method and apparatus for providing hitless protection switching in a synchronous transmission system. A switching apparatus is arranged to receive data signals on at least two transmission paths and to output data from a selected one of said transmission paths. The apparatus ...


6
Mark Carson, David M Goodman: Switch subtending in a synchronous transmission system. Nortel Networks, Barnes & Thornburg, March 14, 2006: US07013348 (5 worldwide citation)

The invention concerns a switching apparatus comprising a low order switch subtended from a high order switch. In order to compensate for delays incurred by passing a data frame through the high order switch to the low order switch and delays incurred by the operation of the low order switch, the ap ...


7
Chris Murton, David M Goodman: Methods and apparatus for transmitting synchronous data. Nortel Networks, Barnes & ThornburgLLP, February 14, 2006: US06999470 (5 worldwide citation)

In order to allow geographically separate SONET/SDH networks to be interconnected transparently without changes in clock content, payload and overhead, it has conventionally necessary to use dark fiber. For relatively low bandwidth operators this is prohibitively expensive. The present invention pro ...


8
David M Goodman 3843 Debra Court: Target screens for cathode ray tubes utilizing index generating materials that emit x-rays. September 12, 1972: US3691424 (5 worldwide citation)

Beam-index cathode ray tubes comprising target screens structured with index generating materials that emit X-rays which are detected to provide index signals indicative of the position of impact of the cathode rays on the screen. The screen is comprised of special X-ray emitting regions, including ...


9
David M Goodman: Full-resolution beam-index multi-color displays. O Brien & Marks, December 15, 1981: US04306248 (4 worldwide citation)

Programmable power supplies are made responsive to beam-index and timing signals in order to automatically control the size and position of the display on a cathode ray tube. The high voltage power supply is also made programmable, responsive to video signal content, to reduce the energy stored in t ...


10
David M Goodman: Message signalling in a synchronous transmission apparatus. Nortel Networks, Barnes & Thornburg, March 22, 2005: US06870829 (1 worldwide citation)

The invention relates to message signalling in a synchronous transmission apparatus using redundant pointer bits as a signalling channel within the apparatus. The preferred embodiment uses one or more of the new data flag (NDF) pointer bits as a signalling channel. The invention has particular, but ...