Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 5488365 | Method and apparatus for compressing and decompressing short blocks of data A scheme for compression of large sets of short blocks of data for storage in a storage medium, such as a read-only memory. Applications of the scheme include compression of fonts for printers, ROM disks in portable PCs, and others. These applications req... | 01/30/1996 |
| 5389922 | Compression using small dictionaries with applications to network packets The invention is a dictionary initialization scheme adaptive to changes in the type and structure of input data. The compression ratio is increased by minimizing the number of data entries used to represent single characters in the input data. By using fe... | 02/14/1995 |
| 5377340 | Method and apparatus for memory interleaving using an improved hashing scheme A novel memory hashing system is disclosed. The system converts an address into a hashed address of the form (B,C) where B is a module number in a multi-module memory system and C is an offset in the module. The system can be shown to have no pathological... | 12/27/1994 |
| 5373290 | Apparatus and method for managing multiple dictionaries in content addressable memory based data compression A class of lossless data compression algorithms use a memory-based dictionary of finite size to facilitate the compression and decompression of data. To reduce the loss in data compression caused by dictionary resets, a standby dictionary is used to store... | 12/13/1994 |
| 5243341 | Lempel-Ziv compression scheme with enhanced adapation A class of lossless data compression algorithms use a memory-based dictionary of finite size to facilitate the compression and decompression of data. When the current dictionary (CD) fills up with encoded character strings, it is reset thereby losing the ... | 09/07/1993 |
| 4569052 | Coset code generator for computer memory protection An apparatus for protecting computer memory utilizes a parity matrix to generate an n-k check bit signal of an extended linear (n,k,4) code from a k data bit signal. Exclusive-OR gates add the n-k check bit signal to an n-k tag bit signal selected from a ... | 02/04/1986 |
| 4464650 | Apparatus and method for compressing data signals and restoring the compressed data signals A compressor parses the input data stream into segments where each segment comprises a prefix and the next symbol in the data stream following the prefix. The prefix of a segment is the longest match with a previously parsed segment of the data stream. Th... | 08/07/1984 |
