Michael Joseph Greene

US Patent:

20160044390, Feb 11, 2016

Filed:

Aug 6, 2014

Appl. No.:

14/453504

Inventors:

- Thousand Oaks CA, US
Huijiang Xi - Maitland FL, US
Michael C. Greene - Palm Bay FL, US

International Classification:

H04Q 9/00

Abstract:

A subsea data collection and communication system is installed at a subsea interconnect point or subsea connector used for communication between subsea electrical, optical or hybrid electro-optical cables. The data collection and communication system is configured to collect system performance data such as voltage, current, optical pressure and the like from signals carried by the wires or fibers in cables connected to the connector unit, and may also collect data on environmental conditions from sensors installed in or on the connector unit, such as temperature, pressure, or sea water salinity sensors, and the like. The collected data is transmitted to a remote monitoring station or local hub for further processing to detect potential faults or performance degradation either at periodic intervals or on demand, using bi-directional Ethernet, CANBUS, a carrier frequency system over the cable power lines, optical signal over optical fiber, or wireless communication links over short distances.

US Patent:

20140376599, Dec 25, 2014

Filed:

Jun 3, 2014

Appl. No.:

14/294575

Inventors:

Huijiang XI - Maitland FL, US
Michael C. Greene - Palm Bay FL, US
Alan McCleary - St Augustine FL, US

International Classification:

H04L 12/40

US Classification:

375211

Abstract:

Messages on controller area network (CAN) buses are communicated over subsea links. Repeaters couple CAN buses to each end of a subsea link. The subsea link may be, for example, a twisted pair or a single wire with a sea ground. The repeater detects a direction of transmission, that is, whether a signal began on the CAN bus coupled to the repeater or on the subsea link coupled to the repeater. Signals from the CAN bus are conditionally transmitted to the subsea link depending on the detected direction of transmission. Signals from the subsea link are conditionally transmitted to the CAN bus depending on the detected direction of transmission. The repeater can operate at the physical layer without analyzing contents of the CAN bus communications.