Digital radio frequency memory

Details Digital radio frequency memory Digital radio frequency memory

2007-04-26

2010-11-16

Puente, Eva Y (Department: 2611)

Pulse or digital communications

Receivers

C375S240000, C375S229000, C341S110000, C341S143000, C341S176000, C341S113000, C455S313000, C455S420000, C455S419000, C455S416000, C455S415000

Reexamination Certificate

active

07835463

ABSTRACT:
A digital radio frequency memory (DFRM) which converts an incoming analog radio frequency signal to a fourteen bit digital signal allowing for digital signal processing and then retransmitted as an analog RF signal. The DFRM provides a time delay for RF signals by storing the signal. The DFRM also changes the signal frequency in the range of plus or minus 100,000 KHz which places a doppler on the signal. The signal phase is changed in a range of 0 to 359 degrees by the DFRM.

REFERENCES:
patent: 4713662 (1987-12-01), Wiegand
patent: 4799189 (1989-01-01), Grover
patent: 6624780 (2003-09-01), Fouts et al.

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