Multi-mode communications transmitter

Details Multi-mode communications transmitter Multi-mode communications transmitter

2007-01-02

2007-01-02

Qureshi, Afsar M. (Department: 2616)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S335000, C370S503000, C375S261000

Reexamination Certificate

active

10045199

ABSTRACT:
The present invention, generally speaking, provides for true multi-mode operation enabling mode switching to be done on-the-fly, in real time. Ramping techniques are provided to fully ramp a communications signal down and then back up inside a guard period while switching from one mode to another so that signal glitches occur only while the signal is ramped down and so can be made negligible. In another aspect of the invention, an advantageous multi-mode communications platform having a polar modulation architecture is provided. Preferably, the platform is based on a multi-mode, predominantly digital, single-chip communications signal processor. A digital, phase-stable, frequency lock loop enables versatile, low-power operation.

REFERENCES:
patent: 5745527 (1998-04-01), Kelton et al.
patent: 5903546 (1999-05-01), Ikeda et al.
patent: 6185259 (2001-02-01), Dent
patent: 6393064 (2002-05-01), Nagai et al.
patent: 6473467 (2002-10-01), Wallace et al.
patent: 2001/0053142 (2001-12-01), Abe et al.
patent: 2002/0122406 (2002-09-01), Chillariga et al.
patent: 2002/0154705 (2002-10-01), Walton et al.
patent: 0 800 267 (1997-10-01), None
patent: 0 800 267 (1997-10-01), None
patent: 0 895 363 (1999-02-01), None
patent: 0 895 363 (1999-02-01), None
patent: 01/26219 (2001-04-01), None
patent: 01/26219 (2001-04-01), None
patent: 02/084897 (2002-10-01), None
patent: 02/084897 (2002-10-01), None
Matsuoka et al., “Adaptive Modulation System with Variable Coding Rate Concatenated Code for High Quality Multi-Media Communications Systems”, 1996, IEEE, pp. 487-491.

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