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    • 2. 发明授权
    • Electronic device for decoding navigation data by using phase angle variation and method thereof
    • 用于通过使用相位角变化对导航数据进行解码的电子设备及其方法
    • US07973709B2
    • 2011-07-05
    • US12413799
    • 2009-03-30
    • Hung-Sheng Chen
    • Hung-Sheng Chen
    • G01S19/23G01S19/21G01S19/54
    • G01S19/27
    • An electronic device for decoding a navigation data by using a phase angle variation and a method thereof are described, which includes the following steps. A phase angle difference between the first phase angle of the first navigation data and the second phase angle of the second navigation data from a satellite signal is calculated. When the phase angle difference is greater than 90 degrees, the first navigation data and the second navigation data are determined to have opposite signs. The second navigation data according to the first navigation data and the result is determined. Therefore, each data is interpreted through directly comparing whether the phase angle difference with the previous data is greater than 90 degrees or not, so that the correct rate in decoding the navigation data is increased.
    • 描述了通过使用相位角变化对导航数据进行解码的电子设备及其方法,其包括以下步骤。 计算第一导航数据的第一相位角与来自卫星信号的第二导航数据的第二相位角之间的相位角差。 当相位角差大于90度时,第一导航数据和第二导航数据被确定为具有相反的符号。 确定根据第一导航数据和结果的第二导航数据。 因此,通过直接比较相位角差与先前数据是否大于90度来解释每个数据,从而增加对解码导航数据的正确速率。
    • 3. 发明授权
    • Method for tracking satellite signal by GPS
    • 通过GPS跟踪卫星信号的方法
    • US07884761B2
    • 2011-02-08
    • US12429732
    • 2009-04-24
    • Hung-Sheng Chen
    • Hung-Sheng Chen
    • G01S19/24G01S19/29G01S19/30G01S19/37
    • G01S19/29G01S19/27
    • A method for tracking a satellite signal by a GPS includes the following steps. Data is continuously received from one of satellites by using tracking frequencies updated one by one based on an average phase difference of received data. Phase inversion points in the plurality of received data are interpreted. A time difference between each two adjacent phase inversion points among the phase inversion points is calculated. It is determined whether each time difference is an integral multiple of 20 ms. When each time difference is an integral multiple of 20 ms, 1-bit data is retrieved for every 20 ms from the satellite signal by taking a first phase inversion point among the plurality of phase inversion points as a starting point. Thus, a positioning speed is increased and a required positioning time is reduced by finding out a precise tracking frequency and a correct phase inversion point.
    • 用GPS跟踪卫星信号的方法包括以下步骤。 通过使用基于接收数据的平均相位差逐个更新的跟踪频率,从卫星之一连续地接收数据。 解释多个接收数据中的相位反转点。 计算相位反转点之间的每两个相邻相位反转点之间的时间差。 确定每个时间差是否为20ms的整数倍。 当每个时间差是20ms的整数倍时,通过以多个相位反转点中的第一相位反转点为起点,从卫星信号每20ms检索1位数据。 因此,通过找出精确的跟踪频率和正确的相位转换点,增加定位速度并减少所需的定位时间。
    • 6. 发明授权
    • Shallow trench isolation filled with thermal oxide
    • 浅沟隔离填充热氧化物
    • US06232646B1
    • 2001-05-15
    • US09082607
    • 1998-05-20
    • Yu SunAngela T. HuiYue-Song HeTatsuya KajitaMark ChangChi ChangHung-Sheng Chen
    • Yu SunAngela T. HuiYue-Song HeTatsuya KajitaMark ChangChi ChangHung-Sheng Chen
    • H01L2900
    • H01L21/7621H01L21/76232
    • A semiconductor apparatus and method for producing shallow trench isolation. The method includes the steps providing a semiconductor substrate member fabricated having a thin barrier oxide layer on which are fabricated a plurality of spaced apart silicon nitride pads. The regions between the spaced apart nitride pads delineate U-shaped regions for forming shallow isolation trenches and are layered with silicon oxide and polysilicon. The U-shaped regions provide a buffer region of oxide and polysilicon material adjacent opposing silicon nitride pads that prevent erosion of the nitride during etch formation of the isolation trench. The polysilicon is further etched to form a wider, second U-shaped region having sloped sidewalls that provide opposing spacer-forming buffer material that facilitates forming a V-shaped isolation trench region into the semiconductor substrate member a predetermined depth without eroding the silicon nitride pads. The V-shaped trench is subsequently filled with silicon dioxide that is grown by a hot thermal oxide process. The upper portion of the V-shaped isolation trench may be further filled with deposited silicon dioxide followed by a chemical mechanical polishing process.
    • 一种用于产生浅沟槽隔离的半导体装置和方法。 该方法包括提供制造具有薄的阻挡氧化物层的半导体衬底构件的步骤,在其上制造多个间隔开的氮化硅衬垫。 间隔开的氮化物衬垫之间的区域划定用于形成浅隔离沟槽的U形区域并且与氧化硅和多晶硅层叠。 U形区域提供邻近相对的氮化硅焊盘的氧化物和多晶硅材料的缓冲区,其在隔离沟槽的蚀刻形成期间防止氮化物的侵蚀。 多晶硅被进一步蚀刻以形成更宽的第二U形区域,其具有倾斜的侧壁,其提供相对的间隔物形成缓冲材料,其有利于在不侵蚀氮化硅焊盘的情况下在半导体衬底构件中形成预定深度的V形隔离沟槽区域 。 随后,V形沟槽填充二氧化硅,二氧化硅通过热的热氧化工艺生长。 V形隔离沟槽的上部可以进一步填充沉积的二氧化硅,随后进行化学机械抛光工艺。
    • 8. 发明申请
    • ELECTRONIC DEVICE AND METHOD FOR SEARCHING SATELLITES
    • 电子设备和搜索卫星的方法
    • US20100164799A1
    • 2010-07-01
    • US12424734
    • 2009-04-16
    • Hung-Sheng Chen
    • Hung-Sheng Chen
    • G01S1/00
    • G01S19/28G01S19/42
    • A method for searching satellites includes obtaining a position information, obtaining a time information, calculating a regional range according to the position information, finding out numbers of target satellites corresponding to the time information and within the regional range from ephemeris data in an ephemeris database, searching the target satellites corresponding to the numbers, and receiving the satellite signals from each searched target satellite. In an electronic device capable of searching satellites, an operation interface is used to output the position information, and a calculation unit is used to calculate the regional range according to the received position information. A look-up unit is electrically connected to the ephemeris database, and used to find out the numbers of the target satellites corresponding to time information and within the regional range from the ephemeris data.
    • 一种用于搜索卫星的方法包括:获取位置信息,获取时间信息,根据位置信息计算区域范围,从星历数据库中的星历数据中查找与时间信息对应的目标卫星的数目,并在区域范围内, 搜索与该号码对应的目标卫星,并从每个搜索到的目标卫星接收卫星信号。 在能够搜索卫星的电子设备中,使用操作界面输出位置信息,并且使用计算单元根据接收到的位置信息来计算区域范围。 查询单元与星历数据库电连接,用于从星历数据中查找与时间信息对应的目标卫星的数量,并在区域范围内。
    • 9. 发明申请
    • METHOD FOR OBTAINING PRECISE INTERMEDIATE FREQUENCY OF GLOBAL POSITIONING SYSTEM (GPS)
    • 获取全球定位系统(GPS)精密中频的方法
    • US20100164794A1
    • 2010-07-01
    • US12406683
    • 2009-03-18
    • Hung-Sheng Chen
    • Hung-Sheng Chen
    • G01S5/14H04B7/185
    • G01S19/29
    • A method for obtaining a precise intermediate frequency for a global positioning system (GPS) is applied in a GPS receiver having a radio frequency (RF) module. Using a satellite signal received by the RF module, ephemeris data of a satellite is completely obtained, and present coordinate of the GPS receiver is calculated. First coordinate of the satellite at first time point and second coordinate of the satellite at second time point are calculated using the ephemeris data. Then, traveling speed of the satellite and projection value of the traveling speed on position vector from the first coordinate to the present coordinate are calculated using the first time point, the first coordinate, the second time point, and the second coordinate. Finally, the precise intermediate frequency is calculated using the signal frequency, a carrier frequency of the satellite, the projection value, and velocity of light.
    • 在具有射频(RF)模块的GPS接收机中应用用于获得全球定位系统(GPS)的精确中频的方法。 使用由RF模块接收的卫星信号,完全获得卫星的星历数据,并计算GPS接收机的当前坐标。 使用星历数据计算卫星在第一时间点的卫星的第一坐标和第二时间点的卫星的第二坐标。 然后,使用第一时间点,第一坐标,第二时间点和第二坐标来计算卫星的行驶速度和从第一坐标到当前坐标的位置矢量上的行驶速度的投影值。 最后,使用信号频率,卫星的载波频率,投影值和光速计算精确的中频。