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    • 3. 发明专利
    • Improvements in or relating to ion vacuum pumps
    • GB1134231A
    • 1968-11-20
    • GB204166
    • 1966-01-17
    • LEWIS DANA HALL
    • H01J7/18H01J41/16H01J41/20
    • 1,134,231. Ion pumps. L. D. HALL. 17 Jan., 1966 [25 Jan., 1965], No. 2041/66. Heading HID. A vacuum pump comprises a chamber 12 having a wall 13 serving as the sole anode of the pump, a cathode 16 of a gas-absorbent metal, means 25 for producing a magnetic field in a selected direction with reference to the chamber, and means for connecting the electrodes to a source 20 of potential to sputter said cathode 16 with positive ions produced by electron bombardment of gas molecules in said chamber, the sputtered metal absorbing gas particles while it condenses on said wall 13. In the pump shown two sputter cathodes 16 and 17 are connected to source 20, and anode 13 is earthed. The pump also comprises a sublimation target 35 heated by a filament 41 and arranged in direct line of sight with the cathodes 16 and 17 so that sublimed material is deposited on the cathodes. The pump may be operated as a sputter pump, or as a combined sputter and sublimation pump. The sublimation target and heating filament are omitted in a simple sputter pump (Fig. 1, not shown). The cathodes 16 and 17 may be of Ti or V. The sublimation target 35 may be of Cr or may be as described in Specification 1,134,233.
    • 5. 发明授权
    • Method and system for generating and transferring error detection information over a bus
    • 通过总线生成和传送错误检测信息的方法和系统
    • US06286125B1
    • 2001-09-04
    • US09259746
    • 1999-02-27
    • Bruce A. LeshayDana HallJim McGrath
    • Bruce A. LeshayDana HallJim McGrath
    • G06F1110
    • H04L1/0061G06F11/10H04L1/16H04L2001/0094
    • A method of providing error detection information for data transferred between a sender and a receiver interconnected via a bus in a data communication system. The sender transmits data to the receiver on the bus, generates error detection information for the transmitted data, transmits a notification signal to the receiver to indicate start of error detection information transfer, and transmits the error detection information to the receiver on the bus. The receiver generates error detection information for data received from the sender, and compares the receiver generated error detection information to error detection information received from the sender, posting an error condition in case of one or more mismatches.
    • 一种为在数据通信系统中通过总线互连的发送器和接收器之间传送的数据提供错误检测信息的方法。 发送方向总线上的接收者发送数据,生成发送数据的错误检测信息,向接收方发送通知信号,指示错误检测信息传送开始,并将错误检测信息发送到总线上的接收器。 接收器生成从发送器接收的数据的错误检测信息,并将接收器产生的错误检测信息与从发送器接收到的错误检测信息进行比较,在一个或多个不匹配的情况下发布错误条件。
    • 6. 发明授权
    • Method for transmitting data over a data bus with minimized digital inter-symbol interference
    • 通过数字总线以最小的数字符号间干扰传输数据的方法
    • US06577687B2
    • 2003-06-10
    • US09220089
    • 1998-12-23
    • Dana HallBruce Leshay
    • Dana HallBruce Leshay
    • G04F1300
    • G06F13/4072
    • A method for transmitting data over a data bus with minimized digital control and data inter-symbol interference. The voltage level on the data bus is not permitted to reach the quiescent negated voltage level set by the bus terminator voltage. Additional time is provided for data detection circuitry to detect a first segment of data transferred over the data bus. A pause time is enabled after the data bus has been idle or paused for a prolonged period. After the first segment of data has been transferred, the method returns to normal operation by pausing for a normal period of time for data detection circuitry to detect subsequent segments of data transferred over the data bus. Additionally, during prolonged synchronous data transfers with unchanged data bits, the data bus is inverted and driven for further regulating the data bus voltage.
    • 一种通过数据总线以最小化的数字控制和数据符号间干扰传输数据的方法。 数据总线上的电压电平不允许达到由总线终端电压设置的静态负值。 为数据检测电路提供额外的时间来检测通过数据总线传送的数据的第一段。 在数据总线空闲或暂停长时间后,暂停时间将被启动。 在第一段数据被传送之后,该方法通过暂停数据检测电路的正常时间来检测通过数据总线传送的数据的后续段,从而返回正常操作。 另外,在具有不变数据位的长时间同步数据传输期间,数据总线被反相并被驱动以进一步调节数据总线电压。
    • 9. 发明授权
    • Method for transmitting data over a data bus with minimized digital inter-symbol interference
    • 通过数字总线以最小的数字符号间干扰传输数据的方法
    • US06904479B2
    • 2005-06-07
    • US10440953
    • 2003-05-19
    • Dana HallBruce Leshay
    • Dana HallBruce Leshay
    • H04L29/08G06F13/40G04F13/00
    • G06F13/4072
    • A method for transmitting data over a data bus with minimized digital control and data inter-symbol interference. The voltage level on the data bus is not permitted to reach the quiescent negated voltage level set by the bus terminator voltage. Additional time is provided for data detection circuitry to detect a first segment of data transferred over the data bus. A pause time is enabled after the data bus has been idle or paused for a prolonged period. After the first segment of data has been transferred, the method returns to normal operation by pausing for a normal period of time for data detection circuitry to detect subsequent segments of data transferred over the data bus. Additionally, during prolonged synchronous data transfers with unchanged data bits, the data bus is inverted and driven for further regulating the data bus voltage.
    • 一种通过数据总线以最小化的数字控制和数据符号间干扰传输数据的方法。 数据总线上的电压电平不允许达到由总线终端电压设置的静态负值。 为数据检测电路提供额外的时间来检测通过数据总线传送的数据的第一段。 在数据总线空闲或暂停长时间后,暂停时间将被启动。 在第一段数据被传送之后,该方法通过暂停数据检测电路的正常时间来检测通过数据总线传送的数据的后续段,从而返回正常操作。 另外,在具有不变数据位的长时间同步数据传输期间,数据总线被反相并被驱动以进一步调节数据总线电压。