Jerry Allen Martinson

US Patent:

7696836, Apr 13, 2010

Filed:

Oct 30, 2007

Appl. No.:

11/929679

Inventors:

Thomas Nguyen - Fremont CA, US
Jerry Martinson - San Jose CA, US

Assignee:

Aruba Networks, Inc. - Sunnyvale CA

International Classification:

H01P 5/00
H03H 7/00

US Classification:

333 24R, 333177

Abstract:

Improved coupler for Ethernet over twisted pair. An improved coupler has a first common mode choke for connecting an Ethernet PHY to the primary winding of a transformer. The secondary winding of the transformer connects through a second common mode choke for connection to a twisted pair line. In one embodiment, the first common mode choke, transformer, and second common mode choke are placed in the same package. In a second environment, a plurality of choke-transformer-choke units are placed in the same package. In a third embodiment, the plurality of choke-transformer-choke units may be integrated into a connector. Pairs of the second common mode chokes may share cores.

US Patent:

8284007, Oct 9, 2012

Filed:

Oct 22, 2009

Appl. No.:

12/604343

Inventors:

Paul Langner - Fremont CA, US
Ramin Shirani - Morgan Hill CA, US
Jerry A. Martinson - Campbell CA, US
Thomas Wayne Gandy - Mountain View CA, US

Assignee:

Aquantia Corporation - Milpitas CA

International Classification:

H01F 21/02
H01F 27/28
H04M 9/08
H04B 3/28
H04B 3/00
H04B 1/00
H03H 7/00
G01R 15/18
G01R 19/22

US Classification:

336145, 336182, 37940601, 333 12, 333177, 324117 R, 324118, 375258, 375346

Abstract:

A magnetic package for a communication system is disclosed the package comprises a plurality of transformers, wherein each transformer comprises a differential transformer. Each differential transformer comprises at least 2 sets of three pins. Each transformer is coupled to a twisted pair channel and a transceiver. The magnetic package includes at least one common mode transformer coupled to at least one of the transformers, wherein the at least one common mode transformer includes at least three pins. The at least three pins for the at least one common mode transformer are in a position relative to the other pins such that the package size is minimized.

US Patent:

20050185640, Aug 25, 2005

Filed:

Feb 19, 2004

Appl. No.:

10/782612

Inventors:

Joel Adam - Cupertino CA, US
Jerry Martinson - San Jose CA, US

International Classification:

H04L012/50

US Classification:

370366000, 370537000

Abstract:

In one embodiment, the invention relates to a serial line circuit that comprises a serial information (SI) bus and at most two isolators interposed between a pair of programmable devices. In the TRANSMIT direction, a first programmable device is configured to multiplex serial data received from a plurality of serial UARTs and to route such data to the second programmable device over the SI bus and through a first isolator. In the RECEIVE direction, the second programmable device is configured to sample data from a plurality of serial interconnects and to route the sampled data to the first programmable device. The sampled data is routed over the SI bus and through a second isolator. The data transmission over the SI bus is in accordance with a proprietary serial transmission protocol described below.