Power line carrier system
First Claim
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1. A power line carrier system comprising:
- a power branch device includinga power plug being removably connected to an in-house external power line,a plurality of power outlets, anda built-in power line for connecting the power plug and the power outlets; and
at least one electric device configured to be plugged into one of the power outlets, and perform a power line communication in a first signal mode and a second signal mode, with another electric device, the first signal mode being for a power line communication between electric devices connected to the built-in power line, and the second signal mode being for a power line communication between an electric device connected to the built-in power line and an electric device not connected to the built-in power line via the in-house external power line,wherein the power branch device controls the power line communication to pass a power line carrier signal in the first signal mode only in the built-in power line, and allow a power line carrier signal in the second signal mode to pass in the in-house external power line.
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Abstract
The power line carrier system provides with a filter in a power branch apparatus removable from an external power line. The filter passes a power line carrier signal in a signal mode for the external power line, and interrupts another power line carrier signal which is in a signal mode different from the mode for the external power line.
41 Citations
19 Claims
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1. A power line carrier system comprising:
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a power branch device including a power plug being removably connected to an in-house external power line, a plurality of power outlets, and a built-in power line for connecting the power plug and the power outlets; and at least one electric device configured to be plugged into one of the power outlets, and perform a power line communication in a first signal mode and a second signal mode, with another electric device, the first signal mode being for a power line communication between electric devices connected to the built-in power line, and the second signal mode being for a power line communication between an electric device connected to the built-in power line and an electric device not connected to the built-in power line via the in-house external power line, wherein the power branch device controls the power line communication to pass a power line carrier signal in the first signal mode only in the built-in power line, and allow a power line carrier signal in the second signal mode to pass in the in-house external power line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A power branch apparatus comprising:
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a power plug being removably connected to an in-house external power line; a plurality of power outlets; and a built-in power line for connecting the power plug and the power outlets, each of the power outlets configured to be connected to an electric device configured to perform a power line communication in a first signal mode and a second signal mode, with another electric device, the first signal mode being for a power line communication between electric devices connected to the built-in power line, and the second signal mode being for a power line communication between an electric device connected to the built-in power line and an electric device not connected to the built-in power line via the in-house external power line, wherein the power branch device controls the power line communication to pass a power line carrier signal in the first signal mode only in the built-in power line, and allow a power line carrier signal in the second signal mode to pass in the in-house external power line.
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19. A method for performing a power line communication in a power branch device including a power plug being removably connected to an in-house external power line, a plurality of power outlets, and a built-in power line for connecting the power plug and the power outlets, wherein each of the power outlets is configured to be connected to an electric device configured to perform the power line communication in a first signal mode and a second signal mode, with another electric device, the first signal mode being for a power line communication between electric devices connected to the built-in power line, the second signal mode being for a power line communication between an electric device connected to the built-in power line and an electric device not connected to the built-in power line via the in-house external power line, and the power branch device controls the power line communication to pass a power line carrier signal in the first signal mode only in the built-in power line, and allow a power line carrier signal in the second signal mode to pass in the in-house external power line, said method comprising the steps of:
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deciding to adopt either one of the first signal mode and the second signal mode according to an electric device of destination; and performing the power line communication with the electric device of destination in the decided mode.
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Specification
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Current AssigneeMatsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
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Original AssigneeMatsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
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InventorsIkeda, Hiroshi, Fukumoto, Yukihiro, Hasako, Satoshi
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Primary Examiner(s)TRIEU, VAN THANH
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Application NumberUS10/629,803Publication NumberTime in Patent Office1,028 DaysField of Search340/310.01, 340/310.02, 340/310.03, 340/310.04, 340/310.06, 340/310.07, 340/825.26, 340/825.71, 340/310.11, 340/310.12, 340/310.13, 340/310.16, 340/310.17, 340/310.18, 463/40, 463/42, 463/16US Class Current340/12.39CPC Class CodesH04B 2203/5445 Local networkH04B 2203/5454 Adapter and plugsH04B 3/54 Systems for transmission vi...
