发明名称 |
Surface charge signal processing apparatus |
摘要 |
A plurality of charge storage cells, each including first and second storage regions and corresponding first and second electrodes insulatingly overlying the storage regions are provided in a semiconductor substrate. Means are provided for introducing into each of the first charge storage regions a respective quantity of charge proportional to a respective sample of an analog signal. Means are provided for developing a plurality of voltage waveforms, each of the waveforms including a series of periods, and each period constituted of first and second subperiods. Means are provided for applying each of the voltage waveforms to a respective one of the second electrodes of the cells. A high absolute level of a waveform applied to a second electrode of a cell causing charge in the first storage region thereof to transfer to the second storage region thereof and a low absolute level of the waveform applied to a second electrode of a cell causing charge in the second storage region thereof to transfer to the first storage region thereof. Each of the waveforms has a low absolute level during a first subperiod and an absolute level which is either high or low during a second subperiod in response to a respective reference signal, whereby charge in each cell is transferred between the first and second charge storage regions thereof in a time sequence determined by a respective reference signal. Means are provided connected in circuit with the first storage electrodes for sensing the total net charge transferred to and from the first charge storage regions during a common period of the voltage waveforms.
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申请公布号 |
US4446532(A) |
申请公布日期 |
1984.05.01 |
申请号 |
US19820345497 |
申请日期 |
1982.02.03 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
BAERTSCH, RICHARD D.;ENGELER, WILLIAM E. |
分类号 |
G06G7/19;(IPC1-7):G06G7/19;G11C11/40 |
主分类号 |
G06G7/19 |
代理机构 |
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