Method and apparatus for mapping between cellular bit streams an

Details Method and apparatus for mapping between cellular bit streams an Method and apparatus for mapping between cellular bit streams an

1996-11-26

1999-11-30

Vo, Nguyen

Pulse or digital communications

Pulse code modulation

370401, 455557, 455561, H04B 1404

Patent

active

059955473

ABSTRACT:
A method and apparatus for mapping a cellular bit stream to a wireline modem waveform is disclosed. A received cellular bit stream is applied to convolutional decoder to decode class I speech bits within each bit frame of the cellular bit stream. The decoder speech bits are appended to the bit frame from which the decoded bits came, and a 40 bit frame marker is attached to each bit frame. This modified bit frame is transmitted at 20 mS intervals to a wireline modem to achieve a 19.2 KB/S bit rate. The line modem maps the signal onto a waveform and transmit the signal to a PSTN network.

REFERENCES:
patent: 4479213 (1984-10-01), Galand et al.
patent: 5341401 (1994-08-01), Farjh et al.
patent: 5386590 (1995-01-01), Dolan
patent: 5438700 (1995-08-01), Hashimoto et al.
patent: 5463477 (1995-10-01), Kakizaki
patent: 5465267 (1995-11-01), Todoroki
patent: 5479475 (1995-12-01), Grob et al.
patent: 5479480 (1995-12-01), Scott
patent: 5694428 (1997-12-01), Campana, Jr.
patent: 5722054 (1998-02-01), Mizutani et al.
patent: 5787088 (1998-07-01), Dagdeviren et al.

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