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    • 4. 发明授权
    • Apparatus for converting data between analog and digital values
    • 用于在模拟和数字值之间转换数据的装置
    • US4658240A
    • 1987-04-14
    • US607736
    • 1984-05-07
    • James A. Bixby
    • James A. Bixby
    • H03M1/00H03K13/02
    • H03M1/148
    • Signals representing individual digital values are introduced to pluralities of switches of corresponding digital significance to provide for the conductivity of an individual one of the switches in each pair in accordance with the digital value represented by such signals. A plurality of conductive output members to provide paths through a matrix relationship of the switches and through the output members to one of two output lines. This matrix provides for progressive increases in the number of the output members connected to a particular one of the output lines with progressive increases in the digital value and for a continued connection to the particular output line of output members previously connected to the particular output line with such progressive increases in the digital value. The cumulative current through the particular output line is indicative of the analog value. The output members are disposed on an integrated circuit chip in groups each having a common centroid arrangement to offset correlated errors in the output members in the group. The members in each group may be disposed in pairs relative to the common centroid to provide offsets in the correlated errors in the output members in each pair. The output members in the groups having intermediate digital values in the range of digital values may be disposed relative to the common centroid in positions providing minimum correlation errors. Coincidentally, the output members in groups having extreme digital values in the range of digital values may be disposed relative to the common centroid in positions providing increased correlation errors.
    • 将表示各个数字值的信号引入到相应数字有意义的多个开关中,以根据由这些信号表示的数字值来提供每对中的每个开关中的每个开关的导电性。 多个导电输出构件,用于提供穿过开关的矩阵关系并通过输出构件到两条输出线之一的路径。 该矩阵提供连续到输出线路中的特定输出线路的输出部件的数量的逐渐增加,数字值逐渐增加,并且连续连接到先前连接到特定输出线路上的输出部件的特定输出线路, 这种逐渐增加的数字价值。 通过特定输出线的累积电流表示模拟值。 输出构件以分组的方式设置在集成电路芯片上,每一组具有共同的质心布置以抵消组中的输出构件中的相关误差。 每个组中的成员可以相对于公共质心成对配置,以在每对中的输出成员中的相关误差中提供偏移。 可以在提供最小相关误差的位置中相对于公共质心布置具有数字值范围内的中间数字值的组中的输出构件。 巧合的是,在数字值范围内具有极端数字值的组中的输出构件可以相对于提供增加的相关误差的位置中的公共质心来布置。
    • 5. 发明授权
    • Apparatus for preventing flutter and skew in electrical signals
    • 用于防止电信号颤动和歪斜的装置
    • US4258398A
    • 1981-03-24
    • US84233
    • 1979-10-12
    • James A. BixbyCharles E. WrightGilbertE. Kammerer
    • James A. BixbyCharles E. WrightGilbertE. Kammerer
    • G11B5/584G11B20/20G11B5/43G11B21/02G11B21/24
    • G11B20/20G11B5/584
    • Flutter and skew prevention in the playback of recorded multitrack signals is provided by means of an articulated multitrack magnetic head. The head is positionable, with respect to the medium which is the source of the playback signals, by means of a pair of signal controllable actuators; and such actuators connect to the head at width-wise spaced-apart locations thereof. Operation of the actuators is by means of a pair of respective control signals: a sum signal and a difference signal. The sum signal represents the sum of a first phase error signal corresponding to the phase difference between signals produced by different cores of the multitrack head and a second phase error signal corresponding to the phase difference between a signal produced by a head core and a reference signal. The difference signal represents the difference between the first and second phase error signals, or similarly produced error signals.
    • 通过铰接式多轨磁头提供记录的多轨信号的重放中的抖动和歪斜防止。 通过一对信号可控的致动器,头可相对于播放信号源的介质定位; 并且这种致动器在其宽度方向间隔开的位置处连接到头部。 致动器的操作通过一对相应的控制信号:和信号和差信号。 和信号表示对应于由多轨磁头的不同磁芯产生的信号之间的相位差的第一相位误差信号和对应于由磁头磁芯产生的信号与参考信号之间的相位差的第二相位误差信号的和 。 差信号表示第一和第二相位误差信号或类似产生的误差信号之间的差。
    • 10. 发明授权
    • Fast frame rate sensor readout
    • 快速帧速率传感器读数
    • US4322752A
    • 1982-03-30
    • US112483
    • 1980-01-16
    • James A. Bixby
    • James A. Bixby
    • H04N5/30H04N5/374H04N9/04H04N3/14
    • H04N3/1506
    • Prior art electronic cameras that use solid state area image sensors are generally limited to operation at frame rates less than about 120 frames per second. Such frame rates are limited, principally, by the maximum data rate at which solid state sensors may be operated. The present invention provides methods and apparatus for readout of an area image sensor at greatly increased frame rates, doing so by formatting the sensor into blocks of photosite rows for purposes of readout, and by modifying the method of sensor readout in a manner compatible with such format.
    • 使用固态区域图像传感器的现有技术的电子照相机通常限于以小于约120帧/秒的帧速率进行操作。 这样的帧速率主要受限于可以操作固态传感器的最大数据速率。 本发明提供了以大幅度提高的帧速率读出区域图像传感器的方法和装置,通过将传感器格式化为用于读出的光电子行的块,并且以与这种方式兼容的方式修改传感器读出方法 格式。