Memory with CAM and RAM partitions
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United States of America Patent
Stats
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Jan 17, 1995
Grant Date -
N/A
app pub date -
Jun 8, 1992
filing date -
Jun 8, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method is described of programming a memory array on a single integrated circuit so that a portion of each data word is characterized as CAM, with the remaining portion of each data word functioning as RAM. The programmable memory array is partitioned into CAM and RAM subfields by disabling the comparators in each memory cell in selected columns of CAM cells to create RAM-functioning cells. Said partitioning may be re-programmed to enable the comparators in said RAM-functioning cells to be re-enabled, so that said cells may participate in subsequent comparisons to a search word. The described memory array permits direct retrieval and storage of associated information in RAM-functioning cells corresponding to data words which are determined to match a given search word. This direct retrieval and storage process can efficiently be utilized without computing or decoding an address for the associated information.
First Claim
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Patent Owner(s)
| Patent Owner | Address | |
|---|---|---|
| MUSIC SEMICONDUCTORS INC | 1150 ACADEMY PARK LOOP SUITE 202 COLORADO SPRINGS CO 80910 |
International Classification(s)
Inventor(s)
| Inventor Name | Address | # of filed Patents | Total Citations |
|---|---|---|---|
| Threewitt, Norman B | Colorado Springs, CO | 1 | 131 |
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| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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