Cryptography – Key management – Having particular key generator
Patent
1994-11-01
1997-04-15
Cangialosi, Salvatore
Cryptography
Key management
Having particular key generator
364131, 364134, H04L 900
Patent
active
056218001
ABSTRACT:
An integrated circuit that provides multiple communication functions is accomplished by providing an integrated circuit (24) that includes memory (70) which stores an audio code algorithm, echo cancellation information, a modem processing algorithm, and audio data. The memory (70) is coupled via a data bus (50) to a signal converter (56), a central processing unit (58), and a first co-processor (72). The signal converter (56) provides an analog-to-digital input port (78) and a digital-to-analog output port (80) for the integrated circuit (24), wherein the audio data is received via the analog-to-digital input port (78). The central processing unit (58) executes at least a first portion of the audio coding algorithm upon the audio data and executes a first portion of the modem processing algorithm, while the first co-processor (72) executes an echo cancellation algorithm.
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Anderson Donald C.
Astrachan Paul M.
Corleto Jose G.
Curtis Peter C.
Kuenast Walter U.
Cangialosi Salvatore
Motorola Inc.
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