Back to results
US 7,573,310 B2Granted
SET/RESET latch circuit, Schmitt trigger circuit, and MOBILE based D-type flip flop circuit and frequency divider circuit thereof
AssigneeKorea Advanced Institute of Science and Technology
InventorsKyoung-Hoon Yang, Tae-Ho Kim, Yongsik Jeong
Life of this patent
Estimating the term…
Abstract
The present invention relates to a SET/RESET latch circuit a Schmitt trigger circuit, and a MOBILE based D-type flip flop circuit and frequency divider circuit using the SET/RESET latch circuit and Schmitt trigger circuit. The SET/RESET latch circuit is configured with CML-type transistors and negative differential resistance diodes. The SET/RESET latch circuit can be applied to very high speed digital circuits.
Claims11
A MOBILE based D-type flip flop, comprising:
- negative differential resistance diodes receiving a common clock signal, and commonly biased negative differential resistance diodes respectively connected to said negative differential resistance diodes receiving the common clock signal, and
- transistors, wherein each collector of the transistors is respectively connected between one of said negative differential resistance diodes receiving the common clock signal and between one of said commonly biased negative differential resistance diodes, each emitter is connected to a common current source, and each base comprises an input port;
- and
- the flip-flop is configured to be operated in a Non-Return-to-Zero mode, in which each collector of said transistors is respectively connected to the base of a transistor for a SET/RESET latch circuit, and an output port is connected to the collector of said SET/RESET latch circuit.
1 more element
Dependencies are inferred from the claim text.