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Machine translation
1. (WO1981000942) TRANSMITTER HAVING A PHASE-LOCKED LOOP
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000942    International Application No.:    PCT/JP1980/000224
Publication Date: 02.04.1981 International Filing Date: 26.09.1980
IPC:
H03C 3/09 (2006.01), H04B 1/04 (2006.01)
Applicants:
Inventors:
Priority Data:
79/123196 27.09.1979 JP
Title (EN) TRANSMITTER HAVING A PHASE-LOCKED LOOP
(FR) EMETTEUR AYANT UNE BOUCLE A PHASE VERROUILLEE
Abstract: front page image
(EN)In a multi-channel FM radio communication system for simultaneous communication in both directions used in the VHF and UHF bands, the transmitter is provided with a phase-locked loop (30) between a band pass filter (9) and a pre-amplifier (10) in the transmitter channel The reference frequency of the phase-locked loop utilizes the output signal (35) of the band pass filter (9), thereby to reduce noise and suppress undesirable waves over a wide band.
(FR)Dans un systeme de communication radio a plusieurs canaux FM pour la communication simultanee dans les deux directions utilisees dans les bandes VHF et UHF, l"emetteur est pourvu d"une boucle a phase verrouillee (30) entre un filtre a bande passante (9) et un preamplificateur (10) dans le canal emetteur. La frequence de reference de la boucle a phase verrouillee utilise le signal de sortie (35) du filtre a bande passante (9), reduisant ainsi le bruit et supprimant les ondes indesirables sur une large bande.
Designated States:
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)