CCD memory using multilevel storage

CCD memory using multilevel storage

In CCD multilevel storage, more than one bit of information is stored in a charge packet. Requirements for CCD MLS systems are described, and circuits for the encoding and decoding of charge packets which operate essentially independent of device parameter and geometric tolerances are presented. 3-b...

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Veröffentlicht in:IEEE journal of solid-state circuits 1981-10, Vol.16 (5), p.472-478
Hauptverfasser: Terman, L.M., Yee, Y.S., Merrill, R.B., Heller, L.G., Pettigrew, M.B.
Format: Artikel
Sprache:eng
Schlagworte:
Cathode ray tubes
Character generation
Charge coupled devices
Charge transfer
Circuits
Costs
Decoding
Encoding
Multilevel systems
Shift registers
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Beschreibung
Zusammenfassung:In CCD multilevel storage, more than one bit of information is stored in a charge packet. Requirements for CCD MLS systems are described, and circuits for the encoding and decoding of charge packets which operate essentially independent of device parameter and geometric tolerances are presented. 3-bit operation on a short shift register loop is demonstrated. Requirements on leakage and transfer in efficiency for 2- and 3-bit MLS are discussed.
ISSN:0018-9200
1558-173X
DOI:10.1109/JSSC.1981.1051625