Communications: electrical – Continuously variable indicating – With supply voltage regulation or compensation
Patent
1994-03-21
1995-09-12
Horabik, Michael
Communications: electrical
Continuously variable indicating
With supply voltage regulation or compensation
34087031, 323356, G08L 1906
Patent
active
054500761
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.
REFERENCES:
patent: 4354190 (1982-10-01), Reschovsky
patent: 4697183 (1987-09-01), Jenning et al.
patent: 4924171 (1990-05-01), Baba et al.
IBM Technical Disclosure Bulletin, vol. 19, No. 3 Aug. 1976 (Shulman et al.) New York, pp. 1005-1006 "Power level control in TDMA sattelite communication system".
Donig Gunter
Scheckel Bruno
Schoen Karl-Reinhard
Greenberg Laurence A.
Horabik Michael
Lerner Herbert L.
Siemens Aktiengesellschaft
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