Portable voice encrypter
First Claim
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1. A portable electronic device, comprising:
- a CPU;
a first audio output device coupled to said CPU; and
a first audio input device coupled to said CPU;
said first audio input device receives an audio signal which is digitized and encrypted for transmission to an external device, said encryption occurring in real time.
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Abstract
A portable electronic device (e.g., a PDA) receives voice or other types of audio or even other types of media (e.g., video) and digitize, encrypt and transmit the voice stream to an external device (e.g., another portable electronic device) in real-time so that a real-time, two-way communication can occur. Each portable electronic device preferably includes a CPU executing security software to perform the encryption and decryption functions. The devices may communicate with each other via a standard telephone system or other type of communication media.
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Citations
43 Claims
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1. A portable electronic device, comprising:
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a CPU;
a first audio output device coupled to said CPU; and
a first audio input device coupled to said CPU;
said first audio input device receives an audio signal which is digitized and encrypted for transmission to an external device, said encryption occurring in real time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for a secured, two-way, real-time audio communication between two electronic devices, comprising:
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(a) receiving an unencrypted, analog audio signal;
(b) digitizing said unencrypted, analog audio signal;
(c) encrypting said unencrypted, analog audio signal as said unencrypted, analog audio signal is received to produce an encrypted audio stream; and
(d) transmitting said encrypted audio stream to one of said electronic devices. - View Dependent Claims (18, 19, 20)
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21. A two-way secured communication system, comprising:
- at least two electronic devices, each electronic device including;
a CPU;
a first audio output device coupled to said CPU; and
a first audio input device coupled to said CPU;
said first audio input device receives an audio signal which is digitized and encrypted for transmission to the other electronic device, said encryption occurring in real time;
said electronic devices communicating in real-time with one another over a communication link. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
- at least two electronic devices, each electronic device including;
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38. An electronic device, comprising:
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a CPU;
a microphone coupled to said CPU;
a speaker coupled to said CPU;
an input control device coupled to said CPU; and
an interface to a communication link to an external device;
said input control device being used to initiate a call to said external device over said communication link and said input control device being used to select between an unencrypted communication mode and an encrypted communication mode; and
said microphone receiving an audio signal which is digitized and encrypted for transmission to an external device, said encryption occurring in real time. - View Dependent Claims (39, 40, 41, 42, 43)
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Specification