Electronic digital logic circuitry – Interface – Logic level shifting
Reexamination Certificate
2007-09-04
2007-09-04
Barnie, Rexford (Department: 2819)
Electronic digital logic circuitry
Interface
Logic level shifting
C326S068000, C326S080000, C326S081000, C327S333000
Reexamination Certificate
active
11128316
ABSTRACT:
The level shifter comprises a coupling block, a PMOS switch, a first PMOS transistor and a second PMOS transistor. The coupling block receives a first signal and a second signal to generate a first control signal and a first reference voltage. The first signal and the second signal are of opposite phases. The PMOS switch is controlled by the first control signal to choose the first reference voltage or a second reference voltage to be a second control signal. The first PMOS transistor is controlled by the first control signal. The second PMOS transistor is controlled by the second control signal. The connection point between the second PMOS transistor and the first PMOS transistor outputs an output signal.
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“A New low Power PMOS Poly-Si Inverter and Driving Circuits for Active Matrix Displays” by Sang-Hoon Jung et al. School of Electrical Engineering, Seoul National University, Seoul, Korea. SID 2003 DIGEST P1396-P1399.
Au Optronics Corp.
Barnie Rexford
Rabin & Berdo P.C.
Tran Thienvu
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