Variable resolution A/D converter

Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation

Reexamination Certificate

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Details

C455S267000, C455S265000, C455S254000, C455S574000, C455S343200, C341S126000, C341S172000, C341S141000

Reexamination Certificate

active

10725519

ABSTRACT:
A variable resolution analog-to-digital converter includes a sample-and-hold circuit including a plurality of sample-and-hold units which are connected in parallel and selectively activated corresponding to a required resolution to sample and hold an analog input signal, a plurality of conversion stages connected in cascade to an output of the sample-and-hold circuit to convert an output signal of the sample-and-hold circuit to a plurality of bit signals, and a synthesis circuit to synthesize the bit signals, to generate a digital output signal.

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European Search Report issued by European Patent Office on Sep. 27, 2004 in European application No. 03257343.
Setty, P. et al., “FA 9.6: A 5.75b 350Msample/s or 6.75b 150MSample/s Reconfigurable Flash ADC for PRML Read Channel”, IEEE International Solid-State Circuits Conference, Digest of Tech. Papers, pp. 148-149, (1998).
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