发明授权
US4238693A Latch circuit for digital charge coupled systems 失效
数字电荷耦合系统的锁存电路

  • 专利标题: Latch circuit for digital charge coupled systems
  • 专利标题(中): 数字电荷耦合系统的锁存电路
  • 申请号: US938952
    申请日: 1978-09-01
  • 公开(公告)号: US4238693A
    公开(公告)日: 1980-12-09
  • 发明人: Reginald A. Allen
  • 申请人: Reginald A. Allen
  • 申请人地址: CA Redondo Beach
  • 专利权人: TRW Inc.
  • 当前专利权人: TRW Inc.
  • 当前专利权人地址: CA Redondo Beach
  • 主分类号: G11C19/28
  • IPC分类号: G11C19/28 H01L27/105 H01L29/78 H03K19/20
Latch circuit for digital charge coupled systems
摘要:
A circuit for use in digital charge coupled systems provides successive indications of input binary value, until reset, without timing delays and without degeneration of the charge packets. A data input charge packet is provided to a storage electrode, and a series of standardized charge packets are also provided to the storage electrode at the data rate of the system. The latch circuit operates cyclically in internal cycles between the arrival of successive standardized charge packets. The concurrent presence of an input charge packet and a standardized charge packet results in charge overflow across a barrier in a first output data channel. This overflow causes a floating gate electrode that interconnects the first output channel with a second output channel to block transfer of the basic charge packet out the second output channel. It also causes the basic charge packet to be returned as a data input back to the storage electrode. With the basic charge packet representing a binary "1", therefore, the recirculation is effected with each arrival of a new standardized data packet. In the interim, however, the binary "1" valued charge packet is provided as an output at each clock interval from the first output channel. If the input represents binary "0", the floating gate does not inhibit transfer and a charge packet is not provided at the first output channel inasmuch as there is no overflow. Instead, an output charge packet is transferred out the second output channel to provide the complement of the data signal.
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