Symmetricom, Inc.

Et Water Systems, Inc.

Mark Elliot

Patrick B Halahan

Peter Bice

Embodiments of the present disclosure include systems and methods for downloading and installing software updates upon an irrigation control unit (ICU). Some of the disclosed embodiments include error checking and integrity verification procedures which help ensure that the new software is properly installed. In some embodiments the update is coordinated in conjunction with the ICU's regular contact with a control server.

Irrigation smart controllers with programming and firmware updating

The invention comprises a method and apparatus for reducing uncertainty in timing on the network. The uncertainty in receive buffers is removed by time stamping the arriving packets before sending the packets to the receive buffer. The uncertainty in the transmission buffer is removed by giving the packets a timestamp in the future, and holding the packets until precisely that time. Time precision is ensured by only releasing time packets at the host physical layer to network boundary at the time specified within the packet.

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Santa Rosa, CA, United States of America

Mark Elliot