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    • 3. 发明申请
    • CONTINUOUS ADAPTIVE TRAINING FOR DATA INTERFACE TIMING CALIBRATION
    • 用于数据接口时序校准的连续自适应训练
    • WO2014165214A2
    • 2014-10-09
    • PCT/US2014/024818
    • 2014-03-12
    • UNIQUIFY, INC.
    • IYER, VenkatLEE, JungJOSHI, Prashant
    • H03L7/10
    • G06F13/3625G06F13/1689G06F13/4256G11C8/18G11C29/022G11C29/023G11C29/028H03K5/133H03K5/14H03K2005/00019H03L7/08H03L7/0812H03L7/10
    • Circuits and methods for implementing a continuously adaptive timing calibration training function in an integrated circuit interface are disclosed. A mission data path is established where a data bit is sampled by a strobe. A similar reference data path is established for calibration purposes only. At an initialization time both paths are calibrated and a delta value between them is established. During operation of the mission path, the calibration path continuously performs calibration operations to determine if its optimal delay has changed by more than a threshold value. If so, the new delay setting for the reference path is used to change the delay setting for the mission path after adjustment by the delta value. Circuits and methods are also disclosed for performing multiple parallel calibrations for the reference path to speed up the training process.
    • 公开了用于在集成电路接口中实现连续自适应定时校准训练功能的电路和方法。 建立通过闪光灯对数据位进行采样的任务数据通路。 建立类似的参考数据路径用于校准目的。 在初始化时间,两个路径被校准,并且它们之间的增量值被建立。 在任务路径的操作期间,校准路径连续执行校准操作,以确定其最佳延迟是否已经改变超过阈值。 如果是这样,则使用参考路径的新延迟设置,将调整后的任务路径的延迟设置改变为delta值。 还公开了用于对参考路径执行多个并行校准以加速训练过程的电路和方法。
    • 7. 发明申请
    • DYNAMICALLY ADAPTIVE BIT-LEVELING FOR DATA INTERFACES
    • 用于数据接口的动态自适应位移
    • WO2014165169A9
    • 2015-06-04
    • PCT/US2014024637
    • 2014-03-12
    • UNIQUIFY INC
    • GOPALAN MAHESH
    • H04L7/00
    • H04L7/0337G06F1/08G06F11/0763G06F11/0793H03K5/00H03K19/01806H04L1/205
    • A circuit and method for implementing a adaptive bit-leveling function in an integrated circuit interface is disclosed. During a calibration operation, a pre-loaded data bit pattern is continuously sent from a sending device and is continuously read from an external bus by a receiving device. A programmable delay line both advances and delays each individual data bit relative to a sampling point in time, and delay counts relative to a reference point in time are recorded for different sampled data bit values, enabling a delay to be determined that best samples a data bit at its midpoint. During the advancing and delaying of a data bit, jitter on the data bit signal may cause an ambiguity in the determination of the midpoint, and solutions are disclosed for detecting jitter and for resolving a midpoint for sampling a data bit even in the presence of the jitter.
    • 公开了一种用于在集成电路接口中实现自适应位调平功能的电路和方法。 在校准操作期间,从发送设备连续地发送预加载的数据位模式,并且由接收设备从外部总线连续读取。 可编程延迟线都相对于采样点在时间上推进和延迟每个单独的数据位,并且针对不同的采样数据位值记录相对于参考点的延迟计数,使得能够确定最佳采样数据的延迟 位在它的中点。 在数据位的推进和延迟期间,数据位信号的抖动可能导致确定中点的模糊性,并且公开了用于检测抖动和解决用于采样数据位的中点的解决方案,即使存在 抖动。
    • 8. 发明申请
    • CONTINUOUS ADAPTIVE TRAINING FOR DATA INTERFACE TIMING CALIBRATION
    • 数据接口定时校准的连续适应性训练
    • WO2014165214A3
    • 2014-11-27
    • PCT/US2014024818
    • 2014-03-12
    • UNIQUIFY INC
    • IYER VENKATLEE JUNGJOSHI PRASHANT
    • G11C7/10
    • G06F13/3625G06F13/1689G06F13/4256G11C8/18G11C29/022G11C29/023G11C29/028H03K5/133H03K5/14H03K2005/00019H03L7/08H03L7/0812H03L7/10
    • Circuits and methods for implementing a continuously adaptive timing calibration training function in an integrated circuit interface are disclosed. A mission data path is established where a data bit is sampled by a strobe. A similar reference data path is established for calibration purposes only. At an initialization time both paths are calibrated and a delta value between them is established. During operation of the mission path, the calibration path continuously performs calibration operations to determine if its optimal delay has changed by more than a threshold value. If so, the new delay setting for the reference path is used to change the delay setting for the mission path after adjustment by the delta value. Circuits and methods are also disclosed for performing multiple parallel calibrations for the reference path to speed up the training process.
    • 公开了用于在集成电路接口中实现连续自适应定时校准训练功能的电路和方法。 任务数据路径建立在通过选通脉冲对数据位进行采样的地方。 仅为校准目的建立类似的参考数据路径。 在初始化时,两个路径都被校准并且它们之间的增量值被建立。 在任务路径的操作期间,校准路径连续执行校准操作以确定其最佳延迟是否已经改变超过阈值。 如果是,则参考路径的新延迟设置用于在由增量值调整之后改变任务路径的延迟设置。 还公开了用于对参考路径执行多个平行校准以加速训练过程的电路和方法。
    • 10. 发明申请
    • DYNAMICALLY ADAPTIVE BIT-LEVELING FOR DATA INTERFACES
    • 动态自适应位平面数据接口
    • WO2014165169A2
    • 2014-10-09
    • PCT/US2014024637
    • 2014-03-12
    • UNIQUIFY INC
    • GOPALAN MAHESH
    • G06F11/07
    • H04L7/0337G06F1/08G06F11/0763G06F11/0793H03K5/00H03K19/01806H04L1/205
    • A circuit and method for implementing a adaptive bit-leveling function in an integrated circuit interface is disclosed. During a calibration operation, a pre-loaded data bit pattern is continuously sent from a sending device and is continuously read from an external bus by a receiving device. A programmable delay line both advances and delays each individual data bit relative to a sampling point in time, and delay counts relative to a reference point in time are recorded for different sampled data bit values, enabling a delay to be determined that best samples a data bit at its midpoint. During the advancing and delaying of a data bit, jitter on the data bit signal may cause an ambiguity in the determination of the midpoint, and solutions are disclosed for detecting jitter and for resolving a midpoint for sampling a data bit even in the presence of the jitter.
    • 公开了用于在集成电路接口中实现自适应比特均衡功能的电路和方法。 在校准操作期间,预先加载的数据位模式被连续地从发送设备发送并且由接收设备连续地从外部总线读取。 可编程延迟线路相对于采样时间点前进和延迟每个单独的数据比特,并且针对不同的采样数据比特值记录相对于参考时间点的延迟计数,使得能够确定最佳采样数据的延迟 位于中点。 在数据位的前进和延迟期间,数据位信号上的抖动可能导致确定中点时的模糊性,并且公开了用于检测抖动和解决用于采样数据位的中点的解决方案,即使存在 抖动。