Electronic digital logic circuitry – Interface – Current driving
Reexamination Certificate
2007-08-17
2009-02-24
Barnie, Rexford (Department: 2819)
Electronic digital logic circuitry
Interface
Current driving
C326S062000, C326S082000
Reexamination Certificate
active
07495475
ABSTRACT:
A drive circuit includes a load circuit, first and second series circuits, a bias circuit, and first and second voltage applying units. The load circuit is arranged between first and second nodes. The first series circuit is arranged between a first power supply node for supply of a first voltage and a second power supply node for supply of a second voltage. The first series circuit includes a first first-type transistor and a first second-type transistor connected in series with the first node therebetween. The second series circuit includes a second first-type transistor and a second second-type transistor connected in series with the second node therebetween. The bias circuit generates a first bias voltage to bias the first and second first-type transistors and generates a second bias voltage to bias the first and second second-type transistors. The first and second voltage applying units each include a plurality of switches.
REFERENCES:
patent: 6788116 (2004-09-01), Cook et al.
patent: 6819145 (2004-11-01), Swartz et al.
patent: 6856178 (2005-02-01), Narayan
patent: 7038502 (2006-05-01), Yamaguchi
patent: 2004-112453 (2004-04-01), None
patent: 2005-109897 (2005-04-01), None
Barnie Rexford
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Sony Corporation
Tabler Matthew C
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