Device for protecting data transmitted by a facsimile machine
First Claim
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1. A device for protecting data transmitted by a facsimile machine, comprising:
- a lightweight self-contained detachable, portable housing provided with means for encrypting and decrypting data converted to a binary code;
a means for storing encrypted data for subsequent retrieval upon demand;
a means for selectively storing the transmitted data in a decrypted form for subsequent retrieval upon demand; and
a means mounted in said housing for transmitting program signals to said means for encrypting and decrypting the data, said means comprising a keypad with a plurality of command keys and a visual display operationally connected to the keypad.
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Abstract
The invention relates to a device for protecting data transmitted by a facsimile machine and provides for encrypting and decrypting of data converted to a binary code. The device is detachably connectable to a facsimile machine for receiving the data and for encrypting/decrypting the data in accordance with a pre-selected key. The encrypted data is stored by the device for subsequent retrieval upon demand. A keypad and an associated visual display allow programming of the electronic function of the device.
23 Citations
8 Claims
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1. A device for protecting data transmitted by a facsimile machine, comprising:
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a lightweight self-contained detachable, portable housing provided with means for encrypting and decrypting data converted to a binary code;
a means for storing encrypted data for subsequent retrieval upon demand;
a means for selectively storing the transmitted data in a decrypted form for subsequent retrieval upon demand; and
a means mounted in said housing for transmitting program signals to said means for encrypting and decrypting the data, said means comprising a keypad with a plurality of command keys and a visual display operationally connected to the keypad. - View Dependent Claims (2, 3, 4, 5)
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6. A device for protecting data transmitted by a facsimile machine, comprising:
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a lightweight self-contained detachable portable housing provided with means for receiving data transmitted by a facsimile machine;
a means mounted in said housing for encrypting and decrypting the data converted to a binary code;
a means mounted in said housing for transmitting program signals to said means for encrypting and decrypting the data, said means for transmitting signals comprising a keypad with a plurality of command keys and a visual display associated with said housing;
a means mounted in said housing for storing encrypted data for subsequent retrieval of the data upon demand;
a means for selectively storing the transmitted data in a decrypted form for subsequent retrieval upon demand; and
a means mounted in said housing for connecting the device to a telephone line to allow receipt from and transmission of an encrypted data to a remote facsimile machine. - View Dependent Claims (7, 8)
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Specification