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    • 2. 发明公开
    • EFFICIENT N-FACTORIAL DIFFERENTIAL SIGNALING TERMINATION NETWORK
    • 的N- FAKTOR-DIFFERENZSIGNALISIERUNGS-ABSCHLUSSNETZWERK
    • EP2965480A1
    • 2016-01-13
    • EP14713723.6
    • 2014-03-07
    • Qualcomm Incorporated
    • SENGOKU, ShoichiroWILEY, George AlanLEE, ChulkyuCHEUNG, Joseph
    • H04L25/02
    • H03H2/005H04B1/04H04L25/0272H04L25/0278H04L25/14Y02D30/30
    • A termination network circuit for a differential signal transmitter comprises a plurality of n resistance elements and a plurality of differential signal drivers. A first end of each of the resistance elements is coupled at a common node, where n is an integer value and is the number of conductors used to transmit a plurality of differential signals. Each differential signal driver may include a positive terminal driver and a negative terminal driver. The positive terminal driver is coupled to a second end of a first resistance element while the negative terminal driver is coupled to a second end of a second resistance element. The positive terminal driver and the negative terminal driver are separately and independently switchable to provide a current having a magnitude and direction. During a transmission cycle each of the resistance elements has a current of a different magnitude and/or direction than the other resistance elements.
    • 用于差分信号发射机的终端网络电路包括多个n个电阻元件和多个差分信号驱动器。 每个电阻元件的第一端在公共节点处耦合,其中n是整数值,并且是用于发送多个差分信号的导体的数量。 每个差分信号驱动器可以包括正极端子驱动器和负极端子驱动器。 正端子驱动器耦合到第一电阻元件的第二端,而负端子驱动器耦合到第二电阻元件的第二端。 正极端子驱动器和负极端子驱动器是独立且可独立地切换以提供具有大小和方向的电流。 在传输周期期间,每个电阻元件具有与其它电阻元件不同的大小和/或方向的电流。
    • 4. 发明申请
    • CAMERA CONTROL INTERFACE EXTENSION BUS
    • 摄像机控制界面扩展总线
    • WO2014201289A1
    • 2014-12-18
    • PCT/US2014/042182
    • 2014-06-12
    • QUALCOMM INCORPORATED
    • SENGOKU, ShoichiroWILEY, George AlanCHEUNG, Joseph
    • G06F13/42
    • G06F13/4291G06F13/364G06F13/4282G06F13/4295H04L7/0331
    • System, methods and apparatus are described that offer improved performance of a serial bus used for Inter-Integrated Circuit (I2C) and/or camera control interface (CCI) operations. CCI extension (CCIe) devices are described. CCIe devices may be configured as a bus master or as a slave. In one method, a CCIe transmitter may generate a transition number from a set of bits, convert the transition number into a sequence of symbols, and transmit the sequence of symbols in the signaling state of a two-wire serial bus. Timing information may be encoded in the transitions between symbols of consecutive pairs of symbols in the sequence of symbols. For example, each transition may cause a change in the signaling state of at least one wire of the two-wire serial bus. A CCIe receiver may derive a receive clock from the transitions in order to receive and decode the sequence of symbols.
    • 描述了提供用于内部集成电路(I2C)和/或相机控制接口(CCI)操作的串行总线的改进的性能的系统,方法和装置。 描述CCI扩展(CCIe)设备。 CCIe设备可以配置为总线主机或从机。 在一种方法中,CCIe发射机可以从一组比特生成转换号码,将转换号码转换为符号序列,并以两线串行总线的信令状态发送符号序列。 定时信息可以在符号序列中的连续符号对符号之间的转换中被编码。 例如,每个转换可能导致两线串行总线的至少一根线的信令状态改变。 CCIe接收机可以从转换中导出接收时钟,以便接收和解码符号序列。