Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Patent
1984-11-13
1986-04-22
Ng, Jin F.
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
455 52, 455141, 455323, H04B 126
Patent
active
045847169
ABSTRACT:
A radio receiver capable of receiving signals on at least two different frequencies at the same time is described. A hetrodyne frequency is selected midway between the frequencies and an intermediate frequency is selected at a frequency equal to one half of the difference of the frequencies to be received.
REFERENCES:
patent: 3540055 (1967-10-01), Takagi
patent: 4223405 (1980-09-01), Hattori et al.
patent: 4539710 (1985-09-01), Dinsmore
Buckingham Stephen W.
Honeywell Inc.
Ng Jin F.
Seidenglanz Elissa
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