Patent
1977-05-03
1980-01-29
Safourek, Benedict V.
325 20, 325433, H04B 138
Patent
active
041863437
ABSTRACT:
A synchronous frequency synthesis method for a radio transmitter-receiver, having the steps of applying the reference frequency of a fixed-frequency oscillator to a fixed frequency divider and to a second mixer for converting the reference frequency into a second intermediate frequency of the receiving stage, dividing the controlled frequency of a voltage-controlled oscillator by a variable frequency divider, multiplying the controlled frequency to produce a transmitting carrier frequency, applying the controlled frequency to the first mixer of the receiving stage, applying the divided frequency of the fixed frequency divider to a phase detector so as to produce comparison frequencies, inputting either one of the two frequency division step numbers, obtained from the controlled frequencies for transmission and reception and the comparison frequencies, to a shift-applying code converter adapted to convert the difference between the two frequency division step numbers into the sum of or difference between itself and either one of the two frequency division step numbers thereby generating a command code for the variable frequency divider.
REFERENCES:
patent: 3983484 (1976-09-01), Hodama
patent: 4021752 (1977-05-01), Sato
patent: 4027242 (1977-05-01), Yamanaka
patent: 4061980 (1977-12-01), Sato
patent: 4070626 (1978-01-01), Binder et al.
"Synthesizer Aims at CB Market", Electronics, vol. 49, #19, pp. 162-163, Sep. 16, 1976.
Cybernet Electronic Corp.
Masinick Michael A.
Safourek Benedict V.
LandOfFree
Synchronous frequency synthesis method for a radio trnsmitter-re does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Synchronous frequency synthesis method for a radio trnsmitter-re, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synchronous frequency synthesis method for a radio trnsmitter-re will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-882930