Cordless phone data transfer
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United States of America Patent
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Jan 15, 2002
Grant Date -
N/A
app pub date -
May 5, 1999
filing date -
May 5, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for transferring identification codes using magnetic coupling. A matching code is established by a microprocessor and is stored in the memories of a communications base unit and a mobile unit. When the mobile unit is placed in the base unit the central processing unit sends pulsed current to a coil in the base unit inducing a magnetic field. A Hall effect transistor in the mobile unit detects the induced changes in the magnetic field and transmits the pulse pattern to the base unit (handset) memory where it is entered as a new identification code.
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