JPS5956860U

JPS5956860U - Duplex synthesizer device

Info

Publication number: JPS5956860U
Application number: JP14829882U
Authority: JP
Inventors: 政治内野
Original assignee: アンリツ株式会社
Priority date: 1982-09-30
Filing date: 1982-09-30
Publication date: 1984-04-13

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のデュプレックス用シン毛すイザ装置の構
成例、第２図は本考案、に係るデュプレックス用シンセ
サイザ装置の一実施例構成を示している。図中、１は基準発振器、２は第１の分周器、３は周波数
シンセサイザ、４は第１の出力端子、５はチャンネル番
号指定入力端子、６は水晶発振器、７、は混合器、８は
ローパスフィルタ、９は位相検　　　゛波器、１０はル
ープフィルタ、１１は電圧制御発振器、１２は第２の出
力端子、１３は微分回路、１４は変調信号入力端子、１
５は第２の分周器、１６は位相変調器、１７は第３．の
分周器をそれぞれ表わしている。FIG. 1 shows an example of the configuration of a conventional synthesizer device for duplex, and FIG. 2 shows the configuration of an embodiment of the synthesizer device for duplex according to the present invention. In the figure, 1 is a reference oscillator, 2 is a first frequency divider, 3 is a frequency synthesizer, 4 is a first output terminal, 5 is a channel number designation input terminal, 6 is a crystal oscillator, 7 is a mixer, 8 9 is a low-pass filter, 9 is a phase detector, 10 is a loop filter, 11 is a voltage controlled oscillator, 12 is a second output terminal, 13 is a differentiation circuit, 14 is a modulation signal input terminal, 1
5 is a second frequency divider, 16 is a phase modulator, 17 is a third . Each represents a frequency divider.

Claims

[Scope of utility model registration request]

a reference oscillator that oscillates a reference frequency; a first frequency divider and a second frequency divider that independently divide the reference frequency; a first output terminal that outputs a local oscillation angle signal; ; a second output terminal for excitation of a transmission signal; inputting the frequency divided by the first frequency divider, outputting a frequency that is an integral multiple of the frequency, and sending it to the first output terminal; With a frequency synthesizer; a phase modulator that applies phase modulation to the output signal of the frequency divider; a mixer that mixes the frequency sent to the first output terminal and the frequency sent to the second output terminal; a low-pass filter that passes a signal having a difference in frequency between the signals output from the device and output to the first and second output terminals; and divides the frequency of the signal that has passed the low-pass filter; a third frequency divider; a phase detector that detects a phase difference between the output signal from the third frequency divider and the signal from the phase modulator; and inputting the output signal from the phase detector. a loop filter; and a voltage controlled oscillator that outputs a signal of a frequency corresponding to the control signal output from the loop filter and sends it to the second output terminal, A duplex synthesizer device, characterized in that the difference between the frequency of the output terminal and the center frequency of the signal sent to the second output terminal is maintained at a predetermined frequency.