Electrical pulse counters – pulse dividers – or shift registers: c – Charge transfer device – Particular input or output means
Patent
1986-06-05
1988-02-16
Munson, Gene M.
Electrical pulse counters, pulse dividers, or shift registers: c
Charge transfer device
Particular input or output means
357 24, G11C 1928, H01L 2978
Patent
active
047260491
ABSTRACT:
The invention relates to an input stage for a ccd, which has both a good linearity and favourable high-frequency properties. The input stage comprises a first electrode (18), by which, for example by means of fill and spill, a charge packet (29) of fixed size is formed. Subsequently, viewed in the charge transport direction, three consecutively arranged electrodes (19, 20 and 21) succeed. The fixed charge packet (29) is divided below the electrodes (19 and 21) into two complementary signal-dependent charge packets (30,31), of which the charge packet (30) is transported further and the packet (31) is transferred back to the first electrode (18). The electrode (20) acts as a sampling electrode, which separates the packets (30 and 31) from each other. The signal formation takes place at the edge of the clock with which the sampling electrode is controlled and is therefore independent of the frequency of this clock.
REFERENCES:
patent: 4099197 (1978-07-01), Ibrahim et al.
patent: 4210825 (1980-07-01), Crochiere et al.
patent: 4350902 (1982-09-01), Knauer
Miller Paul R.
Munson Gene M.
U.S. Philips Corporation
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