Cryptography – Communication system using cryptography – Speech scrambler detail
Reexamination Certificate
2003-06-19
2008-12-02
Zand, Kambiz (Department: 2134)
Cryptography
Communication system using cryptography
Speech scrambler detail
C380S255000, C380S277000, C709S227000
Reexamination Certificate
active
07460671
ABSTRACT:
In one aspect, a device includes an encoder configured to receive a speech sample and generate an encoded voice packet from the speech sample, the encoded voice packet having a packet size and a plurality of bytes. The device also includes an encryption unit configured to receive a voice block and generate an encrypted voice block, the voice block having a block size, wherein the packet size is not divisible by the block size and yields a remainder. The device further includes a packet block manager configured to divide the encoded voice packet into a plurality of the voice blocks and provide the plurality of the voice blocks to the encryption unit, the packet block manager further configured to create a remainder voice block including remainder bytes of the encoded voice packet and additional bytes from the encrypted voice block and provide the remainder voice block to the encryption unit.
REFERENCES:
patent: 6918034 (2005-07-01), Sengodan et al.
patent: 6934756 (2005-08-01), Maes
patent: 2003/0128696 (2003-07-01), Wengrovitz et al.
patent: 2003/0219128 (2003-11-01), Luby
Klein Fabien
Rossello Norbert
Farjami & Farjami LLP
Mindspeed Technologies Inc.
Tolentino Roderick
Zand Kambiz
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