Personal identification and signaling system
First Claim
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1. A portable identification system comprising, in combination:
- a housing;
a primary signal generator in said housing, for generating a primary frequency signal;
means to generate a plurality of secondary signals from said primary signal;
first switching means on said housing for transmitting said secondary signals in a predetermined sequence to generate an identification signal; and
means energizeable to alter the sequence said secondary signals are transmitted thereby to change the characteristics of said identification signal.
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Abstract
A personal identifier comprising a portable device for generating a signal identifying the user. This identifier may be reprogrammed periodically by the user for protecting against unauthorized use or for sending special information. In addition the identifier can be energized to radiate a uniquely coded high energy signal to indicate the user needs emergency assistance and also includes a loudspeaker for transmitting the signal to a telephone receiver to allow communicating through the telephone system.
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Citations
26 Claims
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1. A portable identification system comprising, in combination:
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a housing; a primary signal generator in said housing, for generating a primary frequency signal; means to generate a plurality of secondary signals from said primary signal; first switching means on said housing for transmitting said secondary signals in a predetermined sequence to generate an identification signal; and means energizeable to alter the sequence said secondary signals are transmitted thereby to change the characteristics of said identification signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An identification system comprising, in combination:
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a portable identifier for generating a primary signal; means to generate a plurality of secondary signals from said primary signal; first switching means for transmitting said secondary signals in a predetermined sequence to generate an identification signal; means energizeable to alter the sequence said secondary signals are transmitted thereby to change the characteristics of said identification signal; a receiving station including means to receive said identification signal; and means including an internal memory with prerecorded signals to identify said identification signal. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification