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    • 109. 发明公开
    • Digital signal transmitter and receiver using source based reference logic levels
    • Digitaler Signalsender undEmpfängermit einer SignalquellefürReferenzlogikpegel
    • EP1014582A1
    • 2000-06-28
    • EP99309742.7
    • 1999-12-03
    • Nortel Networks Corporation
    • Crick, William R
    • H03K19/003H03K19/0175G06F13/40
    • H03K19/00346
    • A signal transmitter for transmitting digital logic signals and a complementary receiver, are disclosed. The signal transmitter comprises a plurality of signal drivers and at least one reference driver. The signal drivers transmit digital signals, while the reference driver transmits a constant signal representative of a digital HI or LO. The signal and reference drivers are interconnected so that any noise due to package and power supply interconnection impedances is present in all transmitted signals including any reference signals. At a receiver, the reference signal including noise is used to establish threshold levels for digital HI and LO signals. Because noise is common to all transmitted signals, the receiver is able to reduce the effects of the noise by comparing the plurality of received signals with the reference signal.
    • 公开了用于发送数字逻辑信号的信号发射机和互补接收机。 信号发射器包括多个信号驱动器和至少一个参考驱动器。 信号驱动器传输数字信号,而参考驱动器传输代表数字HI或LO的恒定信号。 信号和参考驱动器互连,使得由于封装和电源互连阻抗引起的任何噪声都存在于包括任何参考信号的所有传输信号中。 在接收机处,使用包括噪声的参考信号来建立数字HI和LO信号的阈值电平。 由于噪声对所有发射信号是共同的,所以接收机能够通过将多个接收信号与参考信号进行比较来减小噪声的影响。
    • 110. 发明公开
    • Low dissipation biCMOS ECL/CMOS interface
    • Bi CMOS CMOS ECL / CMOS Schnittstelle mit Niedrigem Verbrauch
    • EP1006658A1
    • 2000-06-07
    • EP98830727.8
    • 1998-12-03
    • STMicroelectronics S.r.l.
    • Ottini, DanieleBruccoleri, MelchiorreMarchese, StefanoBollati, Giacomino
    • H03K19/0175
    • H03K19/017527
    • A BiCMOS ECL/CMOS interface circuit for converting a high frequency pseudo-ECL signal with a voltage swing in the order of few hundreds of millivolts into a CMOS signal with a voltage swing substantially equal to the supply voltage, comprising a differential input stage composed of a pair of NPN bipolar junction transistors (Q1, Q2) in a common emitter configuration, a bias current generator (IBIAS) functionally coupled between the common emitter node of said NPN transistors and ground and means driven by a respective transistor of said input pair (Q1, Q2) driving the control node of a respective output CMOS stage (M5-M7, M6-M8), is provided with first and second common-collector stages each constituted by an NPN bipolar junction transistor(Q3, Q4) and driven by a respective transistor of said pair of NPN transistors (Q1, Q2); and with a pair of identical PMOS transistors (M1, M2) with gates connected in common to a bias voltage (POL), each PMOS transistor (M1, M2) having a source coupled to the emitter of a respective transistor (Q3, Q4) of said common-collector stages and a drain connected to a load current generator (I) and to said control node of a respective output CMOS stage (M5-M7, M6-M8), for reducing current absorption without impairing performance.
    • 一种BiCMOS ECL / CMOS接口电路,用于将具有几百毫伏数量级的电压摆幅的高频伪ECL信号转换成具有基本上等于电源电压的电压摆幅的CMOS信号,包括差分输入级,其由 一个共同的发射结构的一对NPN双极结晶体管(Q1,Q2),功能上耦合在所述NPN晶体管的公共发射极节点与地之间的偏置电流发生器(IBIAS)和由所述输入对的相应晶体管驱动的装置 Q1,Q2)驱动各个输出CMOS级(M5-M7,M6-M8)的控制节点,设置有由NPN双极结型晶体管(Q3,Q4)构成的第一和第二公共集电极级,并由 所述一对NPN晶体管(Q1,Q2)的相应晶体管; 并且通过一对具有与偏置电压(POL)共同连接的栅极的一对相同的PMOS晶体管(M1,M2),每个PMOS晶体管(M1,M2)具有耦合到相应晶体管(Q3,Q4)的发射极的源极, 的所述共集电极级和连接到负载电流发生器(I)的漏极以及相应的输出CMOS级(M5-M7,M6-M8)的所述控制节点,用于减小电流吸收而不损害性能。