Telecommunications – Transmitter and receiver at separate stations – With control signal
Patent
1990-08-20
1992-03-10
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at separate stations
With control signal
333 14, 381106, A03G 700
Patent
active
050955390
ABSTRACT:
A linked compressor-expander (Lincompex) system and method varies the power of the control tone signal to maintain the power of the signal supplied to the transmitter substantially constant. The system measures a parameter related to the power level of the compressed information signal output from the compressor and varies the power of the control tone such that the sum of compressed information signal power and control tone power is substantially constant. When the input information signal drops below the compression range of the compressor, the control tone amplitude is thereby boosted to maintain the combined information signal and control tone signal power more nearly constant, and thus improve performance during low input information signal power levels. During these low input information signal power levels, the power of the control tone S/N is boosted so as to maintain higher control tone at the receive, thereby improving demodulator performance.
REFERENCES:
patent: 4271499 (1981-06-01), Leveque
patent: 4539707 (1985-09-01), Jacobs et al.
patent: 4701953 (1987-10-01), White
patent: 4907218 (1990-03-01), Leveque
AMAF Industries, Inc.
Charouel Lisa
Eisenzopf Reinhard J.
LandOfFree
System and method of control tone amplitude modulation in a link does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method of control tone amplitude modulation in a link, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method of control tone amplitude modulation in a link will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2290671