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US5450076A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for reducing power loss in devices for contactless data and energy transmission, and apparatus for performing the method

Assignee: Siemens AG
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Filing: 1994-03-21
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Granted: 1995-09-12
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Expires: 2014-03-21
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Abstract

Abstract Devices for contactless data and energy transfer include a stationary part having at least one coil for data and energy transfer, and a moveable part having at least one coil for data and energy transfer and having at least one memory unit. A method for reducing power loss in the devices includes transferring a test data word from the stationary part to the moveable part at a maximum energy, in an initializing mode, storing the transferred test data word in the memory unit of the moveable part, subsequently reading a test data word out of the memory unit of the moveable part and comparing the transferred test data word and the read-out test data word in the stationary part, reducing an energy supply if the transferred test data word and the read-out test data word match, and raising the energy supply by a defined amount and ending the initializing mode, if the transferred test data word and the read-out test data word do not match. An apparatus for reducing power loss the devices includes a stationary part having a device for contactless data transfer, a device for contactless energy transfer, and a process control connected to the device for contactless data transfer; and a moveable part having a device for receiving transferred energy and for receiving and transferring data, and at least one memory unit; the device for contactless energy transfer being controlled by the process control for adjusting an energy supply to the moveable part.

Inventors

  • 👤 Gunter Donig
  • 👤 Bruno Scheckel
  • 👤 Karl-Reinhard Schoen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 13:54
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10009; G06K7/10316; G06K7/10336; G06K7/0008; G08; G08C; G08C17/00; G08C17/04; H; H04; H04B; H04B5/00; H04B5/20; H04B5/24; H04B5/26; H04B5/263; H04B5/266; H04B5/70; H04B5/77; H04B5/79

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 168 words
A method for reducing power loss in devices for contactless data and energy transfer, including a stationary part having at least one coil for data and energy transfer, and a moveable part having at least one coil for data and energy transfer and having at least one memory unit, which comprises: transferring a test data word from the stationary part to the moveable part at a maximum energy, in an initializing mode, storing the transferred test data word in the memory unit of the moveable part, subsequently reading a test data word out of the memory unit of the moveable part with the stationary part and comparing the transferred test data word and the read-out test data word in the stationary part, reducing an energy supply if the transferred test data word and the read-out test data word match, and raising the energy supply by a defined amount and ending the initializing mode, if the transferred test data word and the read-out test data word do not match.
Claim 2
Independent Claim 168 words
A method for reducing power loss in devices for contactless data and energy transfer, including a stationary part having at least one coil for data and energy transfer, and a moveable part having at least one coil for data and energy transfer and having at least one memory unit, which comprises: transferring a test data word from the stationary part to the moveable part at a maximum energy, in an initializing mode, storing the transferred test data word in the memory unit of the moveable part, subsequently reading a test data word out of the memory unit of the moveable part with the stationary part and comparing the transferred test data word and the read-out test data word in the stationary part, reducing an energy supply if the transferred test data word and the read-out test data word match, and raising the energy supply by a defined amount and ending the initializing mode, if the transferred test data word and the read-out test data word do not match.
Claim 3
Independent Claim 194 words
A method for reducing power loss in devices for contactless data and energy transfer, including a stationary part having at least one coil for data and energy transfer, and a moveable part having at least one coil for data and energy transfer and having at least one memory unit, which comprises: a) transferring a test data word from the stationary part to the moveable part at a maximum energy, in an initializing mode; b) storing the transferred test data word in the memory unit of the moveable part; c) subsequently reading a test data word out of the memory unit of the moveable part with the stationary part; d) comparing the transferred test data word and the read-out test data word in the stationary part; and e) if the transferred test data word and the read-out test data word match, reducing an energy supply, transferring the test data word from the stationary part to the moveable part at the reduced energy, and repeating steps b)-d); f) if the transferred test data word and the read-out test data word do not match, raising the energy supply by a defined amount and ending the initializing mode.
Claim 4
Independent Claim 194 words
A method for reducing power loss in devices for contactless data and energy transfer, including a stationary part having at least one coil for data and energy transfer, and a moveable part having at least one coil for data and energy transfer and having at least one memory unit, which comprises: a) transferring a test data word from the stationary part to the moveable part at a maximum energy, in an initializing mode; b) storing the transferred test data word in the memory unit of the moveable part; c) subsequently reading a test data word out of the memory unit of the moveable part with the stationary part; d) comparing the transferred test data word and the read-out test data word in the stationary part; and e) if the transferred test data word and the read-out test data word match, reducing an energy supply, transferring the test data word from the stationary part to the moveable part at the reduced energy, and repeating steps b)-d); f) if the transferred test data word and the read-out test data word do not match, raising the energy supply by a defined amount and ending the initializing mode.

References Cited (Backward Citations)

GB2037995A Cited
US4354190A Cited
US4697183A Cited
US4924171A Cited
EP0330166A1 Cited
EP0336723A1 Cited
EP0466949A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1998-09-11 1999-03-13 1999-09-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2002-09-11 2003-03-13 2003-09-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2006-09-11 2007-03-13 2007-09-12 $7700.00 Window Closed / Lapsed

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