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    • 4. 发明公开
    • Mobile phone
    • 移动电话
    • EP1394958A3
    • 2004-04-28
    • EP03255293.7
    • 2003-08-26
    • ALPS ELECTRIC CO., LTD.
    • Kobayashi, HirokiIkarashi, Yasuhiro
    • H04B1/40
    • H04B1/005H04B1/406
    • A mobile phone comprising: a transmitter/receiver (10) sharable between GSM mode and WCDMA mode; a modulator (3b) provided in a transmission circuit (3) in the transmitter/ receiver for generating a transmission signal of the GSM mode or the WCDMA mode; a mixer (4b) provided in a reception circuit (4) in the transmitter/receiver for receiving a reception signal of the GSM mode or the WCDMA mode; and first and second oscillators. When the transmitter/receiver is used under the GSM mode, an oscillator signal to be output from the first oscillator is provided to both the modulator and the mixer, and when the transmitter/receiver is used under the WCDMA mode, the oscillator signal is provided only to the modulator but another oscillator signal to be output from the second oscillator is provided to the mixer.
    • 一种移动电话,包括:可在GSM模式和WCDMA模式之间共享的发射机/接收机(10) 一个设置在发射机/接收机的发射电路(3)中的调制器(3b),用于产生GSM模式或WCDMA模式的发射信号; 一个设置在发射机/接收机中的接收电路(4)中的混频器(4b),用于接收GSM模式或WCDMA模式的接收信号; 以及第一和第二振荡器。 当在GSM模式下使用发射机/接收机时,将从第一振荡器输出的振荡器信号提供给调制器和混频器,并且当发射机/接收机在WCDMA模式下使用时,提供振荡器信号 仅对调制器提供,而将从第二振荡器输出的另一振荡器信号提供给混频器。
    • 5. 发明公开
    • Mobile phone
    • Mobiltelefon公司
    • EP1394958A2
    • 2004-03-03
    • EP03255293.7
    • 2003-08-26
    • ALPS ELECTRIC CO., LTD.
    • Kobayashi, HirokiIkarashi, Yasuhiro
    • H04B1/40
    • H04B1/005H04B1/406
    • A mobile phone comprising: a transmitter/receiver (10) sharable between GSM mode and WCDMA mode; a modulator (3b) provided in a transmission circuit (3) in the transmitter/ receiver for generating a transmission signal of the GSM mode or the WCDMA mode; a mixer (4b) provided in a reception circuit (4) in the transmitter/receiver for receiving a reception signal of the GSM mode or the WCDMA mode; and first and second oscillators. When the transmitter/receiver is used under the GSM mode, an oscillator signal to be output from the first oscillator is provided to both the modulator and the mixer, and when the transmitter/receiver is used under the WCDMA mode, the oscillator signal is provided only to the modulator but another oscillator signal to be output from the second oscillator is provided to the mixer.
    • 一种移动电话,包括:在GSM模式和WCDMA模式之间可共享的发射机/接收机(10); 设置在发射机/接收机中的传输电路(3)中的调制器(3b),用于产生GSM模式或WCDMA模式的传输信号; 设置在所述发射机/接收机中的接收电路(4)中的混合器(4b),用于接收GSM模式或WCDMA模式的接收信号; 以及第一和第二振荡器。 当在GSM模式下使用发射机/接收机时,将从第一振荡器输出的振荡器信号提供给调制器和混频器,并且当在WCDMA模式下使用发射机/接收机时,提供振荡器信号 仅向调制器提供另一振荡器信号以从第二振荡器输出提供给混频器。
    • 10. 发明公开
    • Voltage-controlled oscillator preventing irregular oscillation
    • Spannungsgesteuerter Oszillator derunregelmässigeOszillationen verhindert
    • EP1081847A1
    • 2001-03-07
    • EP00306591.9
    • 2000-08-02
    • ALPS ELECTRIC CO., LTD.
    • Ikarashi, Yasuhiro
    • H03B5/12
    • H03B5/1847H03B5/1203H03B5/1231H03B5/1256H03B2202/07H03B2202/08
    • There is provided a voltage-controlled oscillator which prevents generation of irregular oscillation signal, reduces the number of parts including large size elements, realizes reduction in size of structure and easily adjusts output level of the oscillation signal. In above voltage-controlled oscillator, an oscillating transistor (1 1 ) which operates in the grounded base system to output an oscillation signal, an amplifying transistor (1 2 ) which operates in the grounded emitter system to amplify the oscillation signal and a resonance circuit (2) connected to the collector of the oscillating transistor are provided, the resonance circuit is provided with the resonance micro-strip line (2 1 ) with the intermediate tap (T) connected in the DC circuit provided between the collector of the oscillating transistor and the emitter of the amplifying transistor and a resonance capacitor (2 2 ) connected between the collector of the oscillating transistor and the ground point, and a coupling capacitance (1 3 ) to transmit the oscillation signal is connected between the intermediate tap of the resonance micro-strip line and the base of the amplifying transistor.
    • 提供了一种电压控制振荡器,其防止产生不规则振荡信号,减少包括大尺寸元件的部件的数量,实现结构尺寸的减小并且容易地调节振荡信号的输出电平。 在上述压控振荡器中,在接地基础系统中工作以输出振荡信号的振荡晶体管(11),在接地发射极系统中工作以放大振荡信号的放大晶体管(12)和谐振电路(2 ),谐振电路设置有谐振微带线(21),中间抽头(T)连接在设置在振荡晶体管的集电极和发射极之间的DC电路中 和连接在振荡晶体管的集电极和接地点之间的谐振电容器(22),并且用于传输振荡信号的耦合电容(13)连接在谐振微带线的中间抽头和 放大晶体管的基极。