Communications: electrical – Continuously variable indicating – With meter reading
Reexamination Certificate
2007-04-02
2010-11-09
Wong, Albert K (Department: 2612)
Communications: electrical
Continuously variable indicating
With meter reading
C702S060000, C705S412000
Reexamination Certificate
active
07830272
ABSTRACT:
A multi-master serial bus that connects multiple utility monitoring devices with multiple remote electronic display units. The display units include an I2C microprocessor with an integrated LCD controller for controlling an LCD display and a set of buttons for changing what is displayed on the LCD display. They also include an I/O to I2C driver for sending button key presses to the remote monitoring device, which communicates the requested data to be displayed back to the display unit via the multi-master serial bus. Each remote electronic display unit has a unique address assigned to it, and when a user input is detected on the I2C bus by the utility monitoring device, the controller in the utility monitoring device sends monitored data to the detected address for display on the remote electronic display unit.
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patent: 2005/0190074 (2005-09-01), Cumeralto
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Long Avery D.
Thurmond M. Jason
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