首页> 外国专利> FREQUENCY SYNTHESIZING CIRCUIT, COMMUNICATION APPARATUS, FREQUENCY CONTROL METHOD, FREQUENCY CONTROL CIRCUIT, FREQUENCY CONTROL SYSTEM, AND COMPUTER READABLE RECORDING MEDIUM

FREQUENCY SYNTHESIZING CIRCUIT, COMMUNICATION APPARATUS, FREQUENCY CONTROL METHOD, FREQUENCY CONTROL CIRCUIT, FREQUENCY CONTROL SYSTEM, AND COMPUTER READABLE RECORDING MEDIUM

机译:频率合成电路,通信设备,频率控制方法,频率控制电路,频率控制系统和计算机可读记录介质

摘要

PPROBLEM TO BE SOLVED: To provide a system for controlling the frequency of the output signal of a controllable oscillator (202) in a frequency synthesizer (200). PSOLUTION: One such system comprises a controllable oscillator (202) and a frequency control circuit (208). The controllable oscillator (202) is configured to generate an output signal that has a predetermined frequency. The controllable oscillator (202) is also configured with a plurality of operational states that are controlled by the frequency control circuit (208). Each operational state of the controllable oscillator (202) defines a distinct frequency for the output signal of the controllable oscillator (202). The frequency control circuit (208) receives the output signal of the controllable oscillator (202) and determines the distinct frequency for the output signal that best approximates the predetermined frequency. The frequency control circuit (208) may also provide a control signal to the controllable oscillator (202) that is configured to change the controllable oscillator (202) to the operational state corresponding to the distinct frequency that best approximates the predetermined frequency. PCOPYRIGHT: (C)2008,JPO&INPIT
机译:

要解决的问题:提供一种用于控制频率合成器(200)中的可控振荡器(202)的输出信号的频率的系统。解决方案:一种这样的系统包括可控振荡器(202)和频率控制电路(208)。可控振荡器(202)被配置为生成具有预定频率的输出信号。可控振荡器(202)还配置有由频率控制电路(208)控制的多个操作状态。可控振荡器(202)的每个操作状态为可控振荡器(202)的输出信号定义了不同的频率。频率控制电路(208)接收可控振荡器(202)的输出信号,并确定最接近预定频率的输出信号的不同频率。频率控制电路(208)还可将控制信号提供给可控振荡器(202),该控制信号被配置为将可控振荡器(202)改变为与最接近预定频率的不同频率相对应的操作状态。

版权:(C)2008,日本特许厅&INPIT

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