Stereo multiplex encoder (MPX) for FM transmission

Pulse or digital communications – Transmitters – Amplitude modulation

Reexamination Certificate

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C332S167000

Reexamination Certificate

active

10227593

ABSTRACT:
A stereo multiplex encoder (MPX) for FM transmission with a digital signal processor utilizes residual sideband modulation in stereo transmission instead of the conventional double sideband modulation. The adjustment of the sampling frequency to the modulation frequency (fmod=fs/2) is carried out, so that the antialiasing filter of the DAC can be used which produces the residual sideband modulated signal.

REFERENCES:
patent: 4565440 (1986-01-01), Bloechl et al.
patent: 4771464 (1988-09-01), Kadin et al.
patent: 4835791 (1989-05-01), Daoud
patent: 4974236 (1990-11-01), Gurcan et al.
patent: 4994769 (1991-02-01), Kishi
patent: 5047705 (1991-09-01), Kishi
patent: 5115468 (1992-05-01), Asahi et al.
patent: 6272226 (2001-08-01), Khan et al.
patent: 6724832 (2004-04-01), Hershberger
patent: 6810090 (2004-10-01), Perlow
patent: 4210069 (1993-09-01), None
Tseng, Specifications of Ideal Prototype Filters for Designing Linear Phase FIR Filters, Nov. 3-6, 1996-1997, vol. 1, pp. 29-33 vol. 1; 1997 IEEE.

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