Invention Grant
- Patent Title: Efficient controllers and implementations for elastic buffers
- Patent Title (中): 弹性缓冲器的高效控制器和实现
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Application No.: US14497827Application Date: 2014-09-26
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Publication No.: US09172379B1Publication Date: 2015-10-27
- Inventor: Dana How
- Applicant: Altera Corporation
- Applicant Address: US CA San Jose
- Assignee: Altera Corporation
- Current Assignee: Altera Corporation
- Current Assignee Address: US CA San Jose
- Agency: Ropes & Gray LLP
- Main IPC: G06F7/38
- IPC: G06F7/38 ; H03K19/173 ; H03K19/177 ; G06F17/50

Abstract:
Systems and methods relating to an elastic buffer for dynamically adjusting depth of a data-path implemented on an integrated circuit device. The device includes a first flip-flop, a second flip-flop, a multiplexer, and a controller. The first and second flip-flops are arranged in a cascade configuration with the multiplexer interposed therebetween. In certain embodiments, the multiplexer is capable of selecting between input received upstream and the output of the first flip-flop. The controller utilizes control logic to drive the first and second flip-flops and the multiplexer. The first and second flip-flops, and the multiplexer may represent an elastic buffer subunit corresponding to a single bit within a larger elastic buffer, in which a plurality of elastic buffer subunits are cascaded to form the elastic buffer along with a single shared controller.
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