Soft quantizer for FM radio binary digital signaling

Details Soft quantizer for FM radio binary digital signaling Soft quantizer for FM radio binary digital signaling

1980-01-24

1982-01-05

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

340347AD, 375 94, 375104, 364724, 455312, H03K 604

Patent

active

043097723

ABSTRACT:
A soft quantizer for assigning numerical weights to hard quantized output bits of a binary digital detector in a digital receiver based on the noise energy level of the received baseband data. An analog signal, derived from the discriminator noise level, is digitized by an analog to digital converter for use as an address to look up predetermined numerical weights for soft quantized values in a memory table. The addressed numerical weights are combined with the hard quantized output bits of the digital detector to generate soft quantized data values.

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patent: 3868678 (1975-02-01), Michael
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patent: 3980873 (1976-09-01), Mattei
patent: 4003001 (1977-01-01), Jones, Jr.
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patent: 4057797 (1977-11-01), Jorgensen
patent: 4087677 (1978-05-01), Dunn et al.
patent: 4130806 (1978-12-01), Van Gerwen et al.

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