COMMUNICATION METHODS AND DEVICES
First Claim
Patent Images
1. A power lines communication device comprising a communications unit having a first channel unit and a second channel unit wherein the channel units are adapted, in a first mode of operation, to receive simultaneously and/or transmit simultaneously.
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Abstract
In one arrangements there is provided a communications method (10). The method (10) includes sending data (14) in a phase shift keyed form (16) over a power line carrier (22) and sending the same data (14) in a frequency shift keyed form (20) over the same power line carrier (22).
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Citations
42 Claims
- 1. A power lines communication device comprising a communications unit having a first channel unit and a second channel unit wherein the channel units are adapted, in a first mode of operation, to receive simultaneously and/or transmit simultaneously.
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8-26. -26. (canceled)
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27. A method of querying a plurality of utility meters comprising:
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maintaining a record of divisions of the utility meters; querying a first division of the divisions in accordance a first signalling method; and querying a second division of the divisions in accordance with a second signalling method. - View Dependent Claims (28, 29, 30, 31, 33)
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32. (canceled)
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34. (canceled)
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35. A device for querying a plurality of utility meters comprising:
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a store for maintaining a record of divisions of the utility meters; and a query unit having a first facility for querying a first division of the divisions in accordance a first signalling method and a second facility for querying a second division of the divisions in accordance with a second signalling method. - View Dependent Claims (36, 37, 38, 39, 40, 41)
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42-50. -50. (canceled)
Specification