Invention Grant
- Patent Title: Fast binary counters based on symmetric stacking and methods for same
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Application No.: US16610761Application Date: 2018-05-04
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Publication No.: US11321049B2Publication Date: 2022-05-03
- Inventor: Christopher Fritz , Adly T. Fam
- Applicant: The Research Foundation for The State University of New York
- Applicant Address: US NY Amherst
- Assignee: The Research Foundation for The State University of New York
- Current Assignee: The Research Foundation for The State University of New York
- Current Assignee Address: US NY Amherst
- Agency: Hodgson Russ LLP
- International Application: PCT/US2018/031268 WO 20180504
- International Announcement: WO2018/204898 WO 20181108
- Main IPC: G06F30/327
- IPC: G06F30/327 ; G06F113/02 ; G06F7/50 ; G06F7/48 ; G06F7/505

Abstract:
In this paper, binary stackers and counters are presented. In an embodiment, a counter uses 3-bit stacking circuits which group T bits together, followed a symmetric method to combine pairs of 3-bit stacks into 6-bit stacks. The bit stacks are then converted to binary counts, producing 6:3 and 7:3 Counter circuits with no XOR gates on the critical path. This avoids of XOR gates results in faster designs with efficient power and area utilization. In VLSI simulations, the presently-disclosed counters were 30% faster and at consumed at least 20% less power than existing parallel counters. Additionally, using the presently-disclosed counter in existing Counter Based Wallace tree multiplier architectures reduce latency and improves efficiency in term of power-delay product for 64-bit and 128-bit multipliers.
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