会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Modulator and frequency multiplier for use therein
    • 用于其中的调制器和倍频器
    • US5708399A
    • 1998-01-13
    • US674506
    • 1996-07-02
    • Ryota FujiiMasahiro TsukaharaMoriaki MizunoMinoru Takagi
    • Ryota FujiiMasahiro TsukaharaMoriaki MizunoMinoru Takagi
    • H03D7/14H03B19/14H03C3/14H03D7/16H03B19/10H03C3/00
    • H03D7/16
    • A modulator that effectively suppresses carrier leakage is disclosed. The modulator includes a frequency multiplier, a phase shifter and an orthogonal modulator. The frequency multiplier outputs complementary signals whose frequencies are twice the frequency of a first carrier signal. The phase shifter divides the frequencies of the output signals of the frequency multiplier to produce a plurality of second carrier signals whose phases are shifted by 90 degrees from one another. The orthogonal modulator receives an input signal and the second carrier signals from the phase shifter and outputs signals obtained by combining the input signal with the second carrier signals. The frequency multiplier has an input circuit section including a differential circuit. The differential input section receives complementary signals as the first carrier signal. The orthogonal modulator has an output circuit section including a differential circuit.
    • 公开了一种有效抑制载流子泄漏的调制器。 调制器包括倍频器,移相器和正交调制器。 倍频器输出其频率是第一载波信号频率的两倍的互补信号。 移相器分频倍频器的输出信号的频率,产生相位彼此相差90度的多个第二载波信号。 正交调制器从移相器接收输入信号和第二载波信号,并输出通过将输入信号与第二载波信号组合而获得的信号。 倍频器具有包括差动电路的输入电路部分。 差分输入部分接收互补信号作为第一载波信号。 正交调制器具有包括差分电路的输出电路部分。
    • 2. 发明授权
    • Circuit having level converting circuit for converting logic level
    • 具有转换逻辑电平的电平转换电路的电路
    • US5162676A
    • 1992-11-10
    • US669987
    • 1991-03-15
    • Kouju AokiHideji SumiMoriaki MizunoTetsuya Aisaka
    • Kouju AokiHideji SumiMoriaki MizunoTetsuya Aisaka
    • H03K19/018H03K19/086
    • H03K19/01812H03K19/086
    • A circuit has a level converting circuit for converting a signal having level in conformance with a first logic system into a signal having a level in conformance with a second logic system. The circuit includes first, second and third voltage lines for respectively supplying first, second and third power source voltages, a level converting circuit coupled to the first and third voltage lines for converting a first signal having a level in conformance with the first logic system into a second signal having a level in conformance with the second logic system, a reference voltage generating part coupled to the first and third voltage lines for generating a reference voltage based on at least the first power source voltage, so that the reference voltage undergoes a corresponding level deviation with respect to a level deviation of the second signal caused by a level deviation in the first signal which occurs due to a level deviation in the first power source voltage, and a logic circuit which employs the second logic system and is coupled to the second and third voltage lines for receiving the second signal from the level converting circuit and for outputting an output signal using the reference voltage from the reference voltage generating part as a bias signal. The first power source voltage is a positive voltage relative to the second power source voltage and the third power source voltage is a negative voltage relative to the second power source voltage.
    • 4. 发明授权
    • Constant voltage circuit
    • 恒压电路
    • US5594382A
    • 1997-01-14
    • US407248
    • 1995-03-20
    • Susumu KatoMoriaki MizunoKazumi OgawaKazuyuki Nonaka
    • Susumu KatoMoriaki MizunoKazumi OgawaKazuyuki Nonaka
    • G05F3/30G05F3/26G05F1/10G05F3/02
    • G05F3/267
    • A constant voltage circuit adapted for connection between high voltage power source and low voltage power source terminals respectively to output a constant voltage signal from an output terminal in response to a control signal inputted to an input terminal. The circuit has a resistor circuit including a MOS transistor for connection to the high voltage power source and activated in response to the control signal. A current mirror section is connected between the resistor circuit and the low voltage power source terminal to generate an output voltage to be outputted from the output terminal. A feedback section is connected between the resistor circuit and the low voltage power source terminal to control the current mirror section to keep the output voltage constant by detecting deviation of the output voltage.
    • 一种恒压电路,分别适于连接高电压电源和低电压电源端子,以响应输入到输入端子的控制信号从输出端输出恒定电压信号。 电路具有包括用于连接到高电压电源并且响应于控制信号激活的MOS晶体管的电阻器电路。 电流镜部分连接在电阻器电路和低压电源端子之间,以产生从输出端子输出的输出电压。 反馈部分连接在电阻电路和低压电源端子之间,以通过检测输出电压的偏差来控制电流镜部分以保持输出电压恒定。