公开(公告)号：US20090235573A1

公开(公告)日：2009-09-24

申请号：US12211110

申请日：2008-09-16

Applicant: SUI XIN ZHANG ,  ON SHUN WONG ,  ZHAOFENG ZHANG

Inventor： SUI XIN ZHANG ,  ON SHUN WONG ,  ZHAOFENG ZHANG

IPC: C10L1/32

CPC classification number: C10L1/10 ,  C10L1/1208 ,  C10L1/125 ,  C10L1/1266 ,  C10L1/1824 ,  C10L1/1881 ,  C10L1/1886 ,  C10L1/19 ,  C10L1/191 ,  C10L1/2225 ,  C10L1/2437 ,  C10L1/305

Abstract: A hybrid Fuel is disclosed. The hybrid Fuel is made from cheap seawater, recycled animal oil and vegetable oil and alcohol mixed with gasoline and diesel. The hybrid fuel meets the requirements of energy efficiency and emission reduction, saves or partially replaces the petrochemical energy and greatly reduces the release of pollutant such as CO2 (carbon dioxide) and NOX (nitrogen oxide), thus reduces the negative impact, such as green house effects, caused by the petrochemical fuel. The hybrid Fuel can also be used as an additive to gasoline or diesel. A method of making the hybrid fuel and fuel additive is also disclosed.

Abstract translation: 公开了一种混合燃料。 混合动力燃料由便宜的海水，回收的动物油和植物油和与汽油和柴油混合的酒精制成。 混合动力燃料满足能源效率和减排要求，节省或部分取代石化能源，大大减少了二氧化碳（CO2）和氮氧化物（NOx）等污染物的释放，从而减少了绿色的负面影响 房屋效应，由石化燃料引起。 混合燃料也可以用作汽油或柴油的添加剂。 还公开了制备混合燃料和燃料添加剂的方法。

公开(公告)号：US20070057733A1

公开(公告)日：2007-03-15

申请号：US11223344

申请日：2005-09-10

Applicant: Zhaofeng Zhang

Inventor： Zhaofeng Zhang

IPC: H03F1/22

CPC classification number: H03F3/45183 ,  H03F2203/45464 ,  H03F2203/45476 ,  H03F2203/45726 ,  H03G1/0029 ,  H03G1/0088

Abstract: This invention presents a low noise amplifier with switching gain control, comprising an amplifier having an impedance matching circuit a switch circuit, a signal amplifying branch circuit, a switch control circuit, a signal attenuating circuit and a current bias circuit, wherein the switch circuit controls signal amplifying or attenuating based on the high or low of an input signal level. This invention provides low noise, great dynamic range, increased system integration, and low power consumption. This invention is used for integrated circuit wireless communication system and RF preamplifiers for receiver.

公开(公告)号：US20050225383A1

公开(公告)日：2005-10-13

申请号：US10850754

申请日：2004-05-20

Applicant: Larry Li ,  Zhaofeng Zhang ,  Jun Wu

Inventor： Larry Li ,  Zhaofeng Zhang ,  Jun Wu

IPC: H02M3/24 ,  H04L27/06 ,  H04L27/14

CPC classification number: H04L27/06

Abstract: A BFSK demodulator comprises a three-channel frequency-to-voltage converter, an information signal inputting the first-channel frequency-to-voltage converter, a converted information signal inputting the second-channel frequency-to-voltage converter, wherein outputs of first and second channel frequency-to-voltage converter are connected with a capacitor, a output voltage signal produced by the first and second frequency-to-voltage converters and the capacitor, inputting into a positive terminal of the comparator after high frequency noise filtering through a first low-pass filter, a carrier signal inputs into the third-channel frequency-to-voltage converter; and an output from the third-channel frequency-to-voltage converter connected to a capacitor; and a reference voltage signal is produced after high frequency noise filtering through a second low-pass filter, producing a demodulated signal after comparing the information voltage signal with the reference voltage.

Abstract translation: BFSK解调器包括三通道频率 - 电压转换器，输入第一通道频率 - 电压转换器的信息信号，输入第二通道频率 - 电压转换器的转换信息信号，其中第一 并且第二通道频率 - 电压转换器与电容器连接，由第一和第二频率 - 电压转换器和电容器产生的输出电压信号，通过一个高频噪声滤波器输入到比较器的正端子 第一低通滤波器，载波信号输入到第三通道的频率 - 电压转换器; 以及连接到电容器的第三通道频率 - 电压转换器的输出; 并且通过第二低通滤波器在高频噪声滤波之后产生参考电压信号，在将信息电压信号与参考电压进行比较之后产生解调信号。

公开(公告)号：US06989710B2

公开(公告)日：2006-01-24

申请号：US10850754

申请日：2004-05-20

Applicant: Larry B. Li ,  Zhaofeng Zhang ,  Jun Wu

Inventor： Larry B. Li ,  Zhaofeng Zhang ,  Jun Wu

IPC: H03D3/00 ,  H04L27/14 ,  H04L27/144

CPC classification number: H04L27/06

Abstract: A BFSK demodulator comprises a three-channel frequency-to-voltage converter, an information signal inputting the first-channel frequency-to-voltage converter, a converted information signal inputting the second-channel frequency-to-voltage converter, wherein outputs of first and second channel frequency-to-voltage converter are connected with a capacitor, a output voltage signal produced by the first and second frequency-to-voltage converters and the capacitor, inputting into a positive terminal of the comparator after high frequency noise filtering through a first low-pass filter, a carrier signal inputs into the third-channel frequency-to-voltage converter; and an output from the third-channel frequency-to-voltage converter connected to a capacitor; and a reference voltage signal is produced after high frequency noise filtering through a second low-pass filter, producing a demodulated signal after comparing the information voltage signal with the reference voltage.

Abstract translation: BFSK解调器包括三通道频率 - 电压转换器，输入第一通道频率 - 电压转换器的信息信号，输入第二通道频率 - 电压转换器的转换信息信号，其中第一 并且第二通道频率 - 电压转换器与电容器连接，由第一和第二频率 - 电压转换器和电容器产生的输出电压信号，通过一个高频噪声滤波器输入到比较器的正端子 第一低通滤波器，载波信号输入到第三通道的频率 - 电压转换器; 以及连接到电容器的第三通道频率 - 电压转换器的输出; 并且通过第二低通滤波器在高频噪声滤波之后产生参考电压信号，在将信息电压信号与参考电压进行比较之后产生解调信号。

公开(公告)号：US07301403B2

公开(公告)日：2007-11-27

申请号：US11223344

申请日：2005-09-10

Applicant: Zhaofeng Zhang

Inventor： Zhaofeng Zhang

IPC: H03F3/04

CPC classification number: H03F3/45183 ,  H03F2203/45464 ,  H03F2203/45476 ,  H03F2203/45726 ,  H03G1/0029 ,  H03G1/0088

Abstract: This invention presents a low noise amplifier with switching gain control, comprising an amplifier having an impedance matching circuit a switch circuit, a signal amplifying branch circuit, a switch control circuit, a signal attenuating circuit and a current bias circuit, wherein the switch circuit controls signal amplifying or attenuating based on the high or low of an input signal level. This invention provides low noise, great dynamic range, increased system integration, and low power consumption. This invention is used for integrated circuit wireless communication system and RF preamplifiers for receiver.

Abstract translation: 本发明提出一种具有开关增益控制的低噪声放大器，包括具有阻抗匹配电路的放大器，开关电路，信号放大支路，开关控制电路，信号衰减电路和电流偏置电路，其中开关电路控制 基于输入信号电平的高或低的信号放大或衰减。 本发明提供低噪声，大动态范围，增加系统集成度和低功耗。 本发明用于集成电路无线通信系统和用于接收机的RF前置放大器。

公开(公告)号：US20070060087A1

公开(公告)日：2007-03-15

申请号：US11223345

申请日：2005-09-10

Applicant: Zhaofeng Zhang

Inventor： Zhaofeng Zhang

IPC: H04B1/18

CPC classification number: H03D7/1441 ,  H03D7/1458 ,  H03D7/1491 ,  H03D2200/0084

Abstract: This invention presents a low noise high linearity downconverting mixer, comprising a switch circuit, an intermediate frequency IF circuit, a RF amplifier circuit, and a DC bias current circuit, whereas the present invention is used at RF front end in wireless communication devices.

Abstract translation: 本发明提出了一种低噪声高线性下变频混频器，包括开关电路，中频IF电路，RF放大器电路和直流偏置电流电路，而本发明用于无线通信设备中的RF前端。

公开(公告)号：US20050220226A1

公开(公告)日：2005-10-06

申请号：US10850753

申请日：2004-05-20

Applicant: Zhaofeng Zhang ,  Jun Wu ,  Guanghui Yang

Inventor： Zhaofeng Zhang ,  Jun Wu ,  Guanghui Yang

IPC: H04L27/10 ,  H04L27/14

CPC classification number: H04L27/14

Abstract: A BFSK demodulator comprises a frequency-to-voltage converter, a differentiator circuit, and a sampling selector circuit. The frequency-to-voltage converter converts an information input signal into a voltage signal. The differentiator circuit receives the voltage signal and produces an input signal to the sampling selector circuit for reproducing a demodulated signal by properly selecting a plurality of reference voltage signals.

Abstract translation: BFSK解调器包括频率 - 电压转换器，微分电路和采样选择器电路。 频率 - 电压转换器将信息输入信号转换为电压信号。 微分电路接收电压信号，并通过适当地选择多个参考电压信号，向采样选择器电路产生输入信号，以再现解调信号。