Semiconductor integrated circuit

Details Semiconductor integrated circuit Semiconductor integrated circuit

2005-07-26

2005-07-26

Nguyen, John B (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S144000, C341S118000

Reexamination Certificate

active

06922163

ABSTRACT:
A semiconductor integrated circuit comprises a digital-to-analogue converter for converting a digital signal into an analogue signal to output an analogue current signal, a current-to-voltage converter for converting the analogue current signal output by the digital-to-analogue converter, into an analogue voltage signal whose level has been controlled, and a filter for filtering the analogue voltage signal converted by the current-to-voltage converter. The current-to-voltage converter converts the current signal into the voltage signal in which a factor variable in accordance with manufacturing process conditions and/or environmental conditions has been corrected.

REFERENCES:
patent: 4862170 (1989-08-01), Hashimoto et al.
patent: 5323159 (1994-06-01), Imamura et al.
patent: 5515047 (1996-05-01), Yamakido et al.
patent: 5995030 (1999-11-01), Cabler
patent: 6738001 (2004-05-01), Nanba et al.
patent: 6-303137 (1994-10-01), None

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