Communications: electrical – Continuously variable indicating – With meter reading
Patent
1995-01-31
1997-09-30
Horabik, Michael
Communications: electrical
Continuously variable indicating
With meter reading
34082534, 3403111, 455 382, 39518801, H04Q 718
Patent
active
056730322
ABSTRACT:
A selective calling receiver connectable to a computing device which is capable of reading or writing information particular to the receiver. An external signal transmission device is provided independently of the computing device and sends an optical signal (code) to the receiver. The receiver receives the optical signal with a light-sensitive section thereof and compares it with a code assigned to the receiver. Only if the two codes are identical with each other, the receiver allows the computing device to access it. Therefore, the information particular to the receiver cannot be written to or read out of the receiver without the external signal transmission device.
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Horabik Michael
NEC Corporation
Wilson Jr. William H.
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