Method and apparatus for enhanced communication capability while

Details Method and apparatus for enhanced communication capability while Method and apparatus for enhanced communication capability while

1996-11-08

1999-11-16

Le, Amanda

Pulse or digital communications

Systems using alternating or pulsating current

Angle modulation

375283, 375285, 375308, 375331, 455501, 455102, 455132, 455143, 329316, 329348, 332108, 332119, 332151, H04L 2732

Patent

active

059870680

ABSTRACT:
In a radio communication system (100), enhanced communication capability is provided while maintaining standard channel modulation compatibility. At a transmitter (110, 200, 600), a first information signal is generated from data according to a predefined standard modulation scheme (212, 613). A second information signal is generated from data that provides supplemental information to the standard modulated data (213, 616). For transmission, the first and second information signals are combined into a composite signal (214, 619) that represents the first information signal when interpreted according to the predefined standard modulation scheme.

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patent: 5157693 (1992-10-01), Lemersal, Jr. et al.
patent: 5222103 (1993-06-01), Gross
patent: 5233630 (1993-08-01), Wolf

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