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AssigneeThin Film Electronics ASA
InventorsMichael Thompson, Richard Womack
Estimating the term…
A sensing device for reading data stored in a passive matrix memory including memory cells in the form of ferroelectric capacitors, includes an integrator circuit for sensing the current response and a device for storing and comparing two consecutive read values, one of which is a reference value. In a read method for use with the sensing device a bit line is connected to the sensing device for sensing a charge flowing therebetween and a memory cell at the crossing of the former and activated word line, whereafter two consecutive reads of the memory cell are performed and integrated over predetermined time periods in order to generate first and second read values which are compared for determining a logical value dependent on the sensed charge.
A sensing device for reading data stored in a passive matrix memory comprising memory cells in the form of ferroelectric capacitors, wherein said sensing device senses a current response corresponding to the data including a binary one or a binary zero, end performs an integration of two read values, the sensing device comprises an integrator circuit for sensing the current response as an integration of charge as a function of time in consecutive timing intervals and means for storing and comparing two consecutively read values of the current response, one of which is a reference value.
A sensing device for reading data stored in a passive matrix memory comprising memory cells in the form of ferroelectric capacitors, wherein said sensing device senses a current response corresponding to the data including a binary one or a binary zero, and performs an integration of two read values,
A sensing device for reading data stored in a passive matrix memory comprising memory cells in the form of ferroelectric capacitors, wherein said sensing device senses a current response corresponding to the data including a binary one or a binary zero, and performs an integration of two read values, the sensing device comprises an integrator circuit for sensing the current response as an integration of charge as a function of time in consecutive timing intervals and means for storing and comparing two consecutively read values of the current response, one of which is a reference value, and the integrator circuit comprises an operational amplifier and a capacitor connected between an inverting input of the operational amplifier and the output thereof.
Dependencies are inferred from the claim text.