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| Number | Title | Issue Date |
| 4562403 | Symmetrical discriminator and demodulator A symmetrical discriminator and demodulator having two radio wave tuned circuits disposed parallel. The discriminator and demodulator has a common grounding connection for one end of each radio wave tuned circuit. The opposite end of each tuned circuit is... | 12/31/1985 |
| 4554509 | Frequency shift keyed demodulation system A demodulator for continuous phase frequency shift keyed signals is implemented through the medium of computer software and processes incoming signals which are initially passed through an interference reduction filter. The disclosed demodulation algorith... | 11/19/1985 |
