X-ray or gamma ray systems or devices – Auxiliary data acquisition or recording
Patent
1994-10-11
1995-06-27
Church, Craig E.
X-ray or gamma ray systems or devices
Auxiliary data acquisition or recording
378167, H05G 128
Patent
active
054286590
ABSTRACT:
A device is disclosed for transferring electrical signals and electric energy to a data memory (6) of a cassette (1) for radiation-sensitive recording material (11), the memory being connectable to a signal processing unit (4) and a power source (5) of a cassette identification apparatus (2). Means are provided between cassette (1) and cassette identification apparatus (2) for radio-frequency and galvanically insulated transfer of the signals and the electric energy. Such means feature a coupling device (3) having capacitive, inductive or opto-electric coupling elements that are resistant to corrosion, soiling and wear. Furthermore, the means comprise a signal processing unit (4) having signal transmitter circuits (41, 42, 43) and signal receiver circuits (44, 45, 46) for radio-frequency signals, and a power source (5) having an energy transmitter circuit (52) and an energy receiver circuit (53) for a radio-frequency voltage. The signal processing unit (4) is provided with a microprocessor-controlled CPU (40) for producing and processing the signals, and the energy transmitter circuit (52) features an oscillator circuit (51) for producing the radio-frequency voltage, said oscillator circuit being controllable by means of the signals emitted by the CPU. The energy receiver circuit (53) comprises a signal separating circuit (54) to produce a signal for activating the memory (6).
REFERENCES:
patent: 4796183 (1989-01-01), Ermert et al.
Barthold Ulrich
Renner Meinrad
Church Craig E.
Eastman Kodak Company
Noval William F.
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