Frame format for PCM speech data in a telephone transmission system and digital telephone apparatus for use with this frame format
A frame format for PCM speech data in a telphone transmission system and a digital telephone apparatus for use with this frame format are disclosed. The frame format includes a superframe formed of 32 data frames, each comprising three 8 bit data words (bytes). The first data word of a frame include...
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Main Authors | , , , |
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Format | Patent |
Language | English |
Published |
19.07.1983
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Subjects | |
Online Access | Get full text |
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Summary: | A frame format for PCM speech data in a telphone transmission system and a digital telephone apparatus for use with this frame format are disclosed. The frame format includes a superframe formed of 32 data frames, each comprising three 8 bit data words (bytes). The first data word of a frame includes a synchronization code and a signalling code; the second and third data words include PCM speech samples or other digital data. A transmission rate of 192 kilobits/second is chosen so as to match the PCM sampling rate of 8 KHz. |
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Bibliography: | Application Number: US19810249395 |