Non-arithmetical circular buffer cell availability status indicator circuit
US5617543A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 26, 1995 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | May 26, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2205/126
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An availability status indicator circuit simultaneously indicates which of N circular buffer cells (CBC.sub.x, for x=0 through N-1) are available for access. N cell status circuits are provided that correspond to the separate circular buffer cells. Each cell status circuit includes an output terminal at which a cell availability status signal is provided to indicate the availability status of the corresponding circular buffer cell. A first input terminal of the cell status circuit is connected to receive the cell availability status signal from the previous cell status circuit. The cell availability status signal is generated in response to the cell availability status signal of the previous cell, to a available address indicator signal that includes an indicator of whether the corresponding circular buffer cell is a first circular buffer cell available to be accessed, and to an unavailable address indicator signal that includes an indicator of whether the corresponding circular buffer cell is a last circular buffer cell available to be accessed. The cell availability status signal has a first state if the corresponding circular buffer cell is available for access and has a second …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.