Appeal No. 1998-2692
Application 08/512,239
on October 17, 1997 and was entered by the examiner.
The disclosed invention pertains to the field of
transferring data between a remote controller and a user
apparatus in a secure manner. The remote controller is
operable in a high output power level and a low output power
level. Operational commands from the remote controller are
sent at the high output power level, whereas secure data from
the remote controller is sent at the low output power level.
Representative claim 19 is reproduced as follows:
19. A method of transferring secure data between a
remote controller and a user apparatus in a secure manner, the
remote controller having means for storing the secure data,
transmitting means, and means for controlling the output power
of the transmitting means to have at least a low output power
level and a high output power level, the user apparatus having
receiving means and means to store secure data received by
said receiving means, wherein the remote controller transmits
operational commands for effecting operation of the user
apparatus across an air interface using a communications link
while said controlling means controls said transmitting means
to transmit at said high output power level, characterized in
that said method comprises the steps:
storing said secure data in said storing means in said
remote controller;
placing the remote controller in a position closer to the
user apparatus than a position used when said remote
controller is transmitting said operational commands; and
transmitting said secure data across said air interface
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