Roelof N Dutoit

20090204723, Aug 13, 2009

Aug 23, 2006

12/064585

Johann Heinrich Tonsing - Zwartkop, ZA
Roelof Nico DuToit - Portersville PA, US
Gysbert Floris van Beek Van Leeuwen - Erasmuckloof, ZA
Jan Niel Viljoen - Cambridge, GB
David Wells - Cambridgeshire, GB
Leon Johannes Brits - Pretoria, ZA
Jan Christoffel DuToit - Highveld, ZA

NETRONOME SYSTEMS INC. - Cambridge

H04L 12/56

709238

A system and method for handling a digital electronic flow between a first and second entity in which a flow policy is determined that is to be applied to the flow and the flow is then directed along a path in accordance with the policy. An ID is supplied for each flow and a tag associated with each flow which indicates the policy to be applied to its associated flow. Flows are also associated with one another, with associated flows having associated policies. In particular the flow may be processed or forwarded. The path may include a graph structure and virtual applications.

20120131330, May 24, 2012

Jan 30, 2012

13/361559

Johann Heinrich Tönsing - Zwartkop, ZA
Roelof Nico DuToit - Portersville PA, US
Gysbert Floris van Beek Van Leeuwen - Erasmuckloof, ZA

Netronome Systems, Inc. - Santa Clara CA

H04L 9/00

713153

Secured transmissions between a client and a server are detected, a policy formulated whether encrypted material needs to be decrypted, and if content is to be decrypted it is, using decrypting information obtained from the client and server. Resulting plain test is then deployed to an entity such as a processor, store or interface. The plain text can be checked or modified. The transmission between client and server could be blocked, delivered without being decrypted, decrypted and then re-encrypted with or without modification. Each transmission is given an ID and a policy tag.

20090201978, Aug 13, 2009

Aug 23, 2006

12/064560

Johann Heinrich Tönsing - Zwartkop, ZA
Roelof Nico DuToit - Portersville PA, US
Gysbert Floris van Beek Van Leeuwen - Erasmuskloof, ZA

NETRONOME SYSTEMS INC. - Cambridge

H04B 17/00
H04K 1/10

375224, 375260

A method and apparatus for improving channel estimation within an OFDM communication system. Channel estimation in OFDM is usually performed with the aid of pilot symbols. The pilot symbols are typically spaced in time and frequency. The set of frequencies and times at which pilot symbols are inserted is referred to as a pilot pattern. In some cases, the pilot pattern is a diagonal-shaped lattice, either regular or irregular. The method first interpolates in the direction of larger coherence (time or frequency). Using these measurements, the density of pilot symbols in the direction of faster change will be increased thereby improving channel estimation without increasing overhead. As such, the results of the first interpolating step can then be used to assist the interpolation in the dimension of smaller coherence (time or frequency).