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
    • 3. 发明授权
    • Print head assembly and printer using the same
    • 打印头组件和打印机使用相同
    • US08786649B2
    • 2014-07-22
    • US13988342
    • 2011-11-01
    • Tao GaoXuejun ZhangQiangzi CongTianxin JiangMin Yang
    • Tao GaoXuejun ZhangQiangzi CongTianxin JiangMin Yang
    • B41J25/304B41J25/34B41J3/60
    • B41J25/304B41J2/32B41J2/335B41J3/60B41J11/0095B41J15/042B41J25/34
    • A print head assembly and a printer using the same are disclosed. The print head assembly includes: a bracket, a print head and an elastic element. The bracket includes a first bracket body having a cavity and a lid covered on the opening of the cavity. A window is opened on the first bracket body. The print head is accommodated in the cavity of the first bracket body and hinged to the first bracket body via a first rotary shaft. The surface of a heating element of the print head is matched with the window and faces an outside paper pressing roller. The elastic element biases towards the print head so as to make the surface of the heating element of the print head have a tendency to extend outside the window. The print head assembly is capable of being detached as a whole, thus the requirements of performing single-sided printing and duplex printing in the same printer is achieved.
    • 公开了一种打印头组件和使用该打印头组件的打印机。 打印头组件包括:支架,打印头和弹性元件。 支架包括具有空腔的盖的第一支架体和覆盖在空腔的开口上的盖子。 在第一支架主体上打开一个窗口。 打印头容纳在第一托架体的空腔中,并通过第一旋转轴铰接到第一托架体上。 打印头的加热元件的表面与窗口匹配,并面向外部的压纸辊。 弹性元件朝向打印头偏压,使得打印头的加热元件的表面具有延伸到窗外的趋势。 打印头组件能够整体脱离,从而实现了在同一台打印机中执行单面打印和双面打印的要求。
    • 4. 发明申请
    • Method and Apparatus for Joint Detection in Downlink Tdd Cdma
    • 下行Tdd Cdma联合检测方法与装置
    • US20080247337A1
    • 2008-10-09
    • US10599185
    • 2005-03-04
    • Yueheng LiGang WuXuejun ZhangNi Ma
    • Yueheng LiGang WuXuejun ZhangNi Ma
    • H04J3/00
    • H04B1/7105H04B1/7083
    • A method and apparatus for implementing downlink JD (Joint Detection) in TDD CDMA communication systems, wherein the steps to be executed in the UE comprises: receiving downlink signals from a network system in a specific timeslot; acquiring the active primary and secondary channelisation codes in the specific timeslot, through processing the downlink signal; acquiring the initial ACC (Active Channelisation Codes) information for use in implementing JD in the next frame, through implementing a JD algorithm on the downlink signal by using the primary and secondary channelisation codes. An ACC dedicated channel is sent on the FPACH, carrying information relative to the use of secondary channelisation codes.
    • 一种用于在TDD CDMA通信系统中实现下行链路JD(Joint Detection)的方法和装置,其中在UE中执行的步骤包括:在特定时隙中从网络系统接收下行链路信号; 通过处理下行链路信号来获取特定时隙中的主要主要和次要信道化码; 通过使用主要和次要信道化代码,通过在下行链路信号上实现JD算法来获取用于在下一帧中实现JD的初始ACC(主动信道化码)信息。 在FPACH上发送ACC专用信道,携带相对于使用辅助信道化码的信息。
    • 5. 发明申请
    • Adaptive step size method for power control in wireless communication system and system for the same
    • 用于无线通信系统和系统中功率控制的自适应步长方法
    • US20060183493A1
    • 2006-08-17
    • US10540693
    • 2003-12-29
    • Ni MaXuejun ZhangJiang Cheng
    • Ni MaXuejun ZhangJiang Cheng
    • H04B7/00H04Q7/20
    • H04W52/221H04W52/362
    • The present invention relates to an adaptive step size method for power control in wireless communication systems and a system for the same. The method includes the steps: obtaining the power control information whose number is previously set in previous power control cycle and that in current power control cycle; Determining the power control step size in current power control cycle according to the obtained power control information whose number is previously set in previous power control cycle and that in current power control cycle. Employing the method to determine a suitable step size in current PC cycle, we can overcome the defect that the change of the PC step size in current wireless communication system is a fixed value, thereby make the power change more smooth, and ensure that wireless communication holds better communication quality.
    • 本发明涉及一种用于无线通信系统中的功率控制的自适应步长方法及其系统。 该方法包括以下步骤:获得先前功率控制周期中先前设置的功率控制信息和当前功率控制周期中的功率控制信息; 根据所获得的功率控制信息确定当前功率控制周期中的功率控制步长,该功率控制信息的数量是在先前的功率控制周期中预先设定的,而在当前的功率控制周期中。 采用该方法确定当前PC周期中的合适步长,可以克服当前无线通信系统中PC步长变化为固定值的缺陷,从而使功率变化更加平稳,确保无线通信 拥有更好的沟通质量。
    • 6. 发明授权
    • General-purpose wideband amplifier
    • 通用宽带放大器
    • US07602246B2
    • 2009-10-13
    • US10932545
    • 2004-09-01
    • Xuejun ZhangJianjun Zhou
    • Xuejun ZhangJianjun Zhou
    • H03F3/45H03F3/16
    • H03F3/211H03F1/42H03F3/45179H03F2200/294H03F2200/36H03F2200/372H03F2200/39H03F2203/45481H03G1/0023
    • A single-stage amplifier includes (1) first and second “gain” transistors coupled in a common source configuration, (2) first and second resistors providing self-biasing for the first and second transistors, respectively, (3) first and second current sources providing bias currents for the first and second transistors, respectively, and (4) a load impedance coupled between the drains of the first and second transistors. The amplifier may further include (5) third and fourth “compensation” transistors coupled in parallel with, and used to compensate parasitic capacitances of, the first and second transistors, respectively, and (6) third and fourth resistors providing self-biasing for the third and fourth transistors, respectively. Variable gain may be achieved by varying the bias currents for the gain transistors. A two-stage amplifier may be formed with two stages coupled in cascade, with each stage including most or all of the circuit elements of the single-stage amplifier.
    • 单级放大器包括(1)以公共源配置耦合的第一和第二“增益”晶体管,(2)分别为第一和第二晶体管提供自偏压的第一和第二电阻器,(3)第一和第二电流 源极分别为第一和第二晶体管提供偏置电流,以及(4)耦合在第一和第二晶体管的漏极之间的负载阻抗。 放大器还可以包括(5)分别与第一和第二晶体管并联耦合并用于补偿第一和第二晶体管的寄生电容的第三和第四“补偿”晶体管,以及(6)第三和第四电阻器为 第三和第四晶体管。 可以通过改变增益晶体管的偏置电流来实现可变增益。 可以形成两级放大器,其级联耦合两级,每级包括单级放大器的大部分或全部电路元件。
    • 7. 发明申请
    • INTER-MODE INTERFERENCE PREVENTION IN A MULTIMODE WIRELESS DEVICE
    • 多模式无线设备中的模式间干扰预防
    • US20090143095A1
    • 2009-06-04
    • US12270703
    • 2008-11-13
    • Xuejun Zhang
    • Xuejun Zhang
    • H04M1/00
    • H04B1/005H04B1/109H04B15/00H04B2215/068H04L1/0001H04L27/0006H04W24/10H04W72/082H04W88/06
    • This invention relates to a device, a method, a computer program and a computer program product for a device capable of communicating in a first mode of wireless communication and a second mode of wireless communication simultaneously, wherein it is determined for each of at least one channel of a plurality of channels whether interference occurs between the first mode and the second mode; and wherein the channels which have been determined not to cause interference are stored in a list of preferable channels. For instance, in the case where the first mode represents a cellular communications mode, during a cell selection/reselection procedure of the first mode, instead of searching in the cell information stored for the PLMN, it will first search in the list of preferable channels when the second mode is active.
    • 本发明涉及能够以无线通信的第一模式和第二无线通信模式同时进行通信的装置的装置,方法,计算机程序和计算机程序产品,其中确定每个至少一个 在第一模式和第二模式之间发生干扰的多个通道的通道; 并且其中已经被确定为不引起干扰的信道被存储在优选信道的列表中。 例如,在第一模式表示蜂窝通信模式的情况下,在第一模式的小区选择/重选过程中,代替在PLMN存储的小区信息中搜索,它将首先在优选信道列表中搜索 当第二种模式处于活动状态时。
    • 9. 发明申请
    • Maintaining uplink control via the interception of signals for mobile terminals in direct mode peer-to-peer communication
    • 通过直接模式对等通信中的移动终端的信号拦截来维护上行链路控制
    • US20060153105A1
    • 2006-07-13
    • US10547584
    • 2004-03-01
    • Qunli JiaLi SunXuejun ZhangJiang ChengFang Peng
    • Qunli JiaLi SunXuejun ZhangJiang ChengFang Peng
    • H04B7/005H04B7/216
    • H04W76/14
    • The present invention provides a wireless communication network system that maintains uplink control for the mobile terminal in peer-to-peer communication. According to one embodiment of the invention, after determining a reliable direct communication link can be set up between the mobile terminals, the network system transmits information including control commands to the mobile terminals for establishing direct communication. The information includes a burst structure type, with the burst structure containing at least one section for carrying control information intended for the network system. After the direct communication is established, the network system continuously listens to signals communicated between the mobile terminals to receive bursts. The network system demodulates received bursts that are communicated between the two mobile terminals to determine whether a received burst contains control information intended for the network system. If control information intended for the network system is included in a received burst, the network performs a corresponding function. In this way, the uplink control for the mobile terminals can be effectively maintained in peer-to-peer communication.
    • 本发明提供了一种在对等通信中维护移动终端的上行链路控制的无线通信网络系统。 根据本发明的一个实施例,在确定可靠的直接通信链路之后,可以在移动终端之间建立链路,网络系统向移动终端发送包括控制命令的信息,以建立直接通信。 信息包括突发结构类型,突发结构包含至少一个部分,用于承载用于网络系统的控制信息。 在建立直接通信之后,网络系统连续监听在移动终端之间通信的信号以接收突发。 网络系统解调在两个移动终端之间传送的接收突发,以确定接收到的突发是否包含针对网络系统的控制信息。 如果在接收到的突发中包含了针对网络系统的控制信息,则网络执行相应的功能。 以这种方式,可以在对等通信中有效地维持移动终端的上行链路控制。