US Patent No: 6,625,612

Number of patents in Portfolio can not be more than 2000

Deterministic search algorithm

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Abstract

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A method for storing and retrieving a key using a hash table, the method comprising the steps of: (a) hashing the key using a first hash function, thereby transforming the key into a table address in the hash table; (b) hashing the key using a second hash function, distinct from the first hash function, thereby transforming the key into a key signature; and (c) entering the key signature in a signature page located at the table address.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
EZCHIO TECHNOLOGIES LTD.HERZELIA, IRAN ISLAMIC REPUBLIC OF1
EZCHIP TECHNOLOGIES LTD.HERZELIA4
GOLDEN GATE BRIDGE FUND L.P.HERZELIA, IL4
PLENUS TECHNOLOGY LTD.HERZELIA, IL4

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rachamim, Shifra Kefar Tavor, IL 4 111
Tal, Alex Hadera, IL 8 137

Cited Art Landscape

Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (3)
5,390,359 Storing and retrieving records in a computer system 30 1992
5,673,316 Creation and distribution of cryptographic envelope 490 1996
5,873,074 Applying distinct hash-join distributions of operators to both even and uneven database records 20 1997
 
MICROSOFT CORPORATION (2)
5,805,911 Word prediction system 135 1995
6,367,012 Embedding certifications in executable files for network transmission 187 1996
 
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY (1)
6,341,273 Electronic coin stick with potential for future added value 22 1998
 
CISCO TECHNOLOGY, INC. (1)
6,105,134 Verification of the source of program information in a conditional access system 204 1998
 
ERICSSON IP INFRASTRUCTURE INC. (1)
5,946,679 System and method for locating a route in a route table using hashing and compressed radix tree searching 98 1997
 
INTEL CORPORATION (1)
6,263,431 Operating system bootstrap security mechanism 110 1998
 
KABUSHIKI KAISHA TOSHIBA (1)
5,367,672 Apparatus for retrieving data using the remainder of a hashed search key to identify a group of keys and comparing the key to the group of keys 12 1991
 
PENOP LIMITED (1)
6,091,835 Method and system for transcribing electronic affirmations 234 1998
 
PITNEY BOWES INC. (1)
5,448,641 Postal rating system with verifiable integrity 126 1993
 
Required Technologies, Inc. (1)
6,009,432 Value-instance-connectivity computer-implemented database 57 1998
 
SILICON GRAPHICS INTERNATIONAL, CORP. (1)
5,960,434 System method and computer program product for dynamically sizing hash tables 47 1997
 
TELCORDIA TECHNOLOGIES, INC. (1)
5,237,681 Relational data base memory utilization analyzer 45 1991
 
TERADATA US, INC. (1)
5,864,842 Optimization of SQL queries using hash star join operations 86 1995
 
Top Layer Networks, Inc. (1)
6,430,184 System and process for GHIH-speed pattern matching for application-level switching of data packets 57 1998
 
TTI INVENTIONS C LLC (1)
5,121,495 Methods and apparatus for information storage and retrieval utilizing hashing techniques 34 1989

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (2)
7,895,211 Method and system for reinserting a chain in a hash table 2 2006
8,429,143 Methods and systems for improving hash table performance 0 2008
 
STMICROELECTRONICS, INC. (2)
7,782,853 Apparatus and method of using fully configurable memory, multi-stage pipeline logic and an embedded processor to implement multi-bit trie algorithmic network search engine 0 2002
8,295,286 Apparatus and method using hashing for efficiently implementing an IP lookup solution in hardware 3 2003
 
ALTERA CORPORATION (1)
8,874,866 Memory access system 0 2010
 
AT&T INTELLECTUAL PROPERTY I, L.P. (1)
7,861,004 System and method for analyzing data traffic 0 2008
 
BELLUS HEALTH (INTERNATIONAL) LIMITED (1)
7,262,223 Amidine derivatives for treating amyloidosis 6 2004
 
GOOGLE INC. (1)
7,370,048 File storage method and apparatus 3 2005
 
INTEL CORPORATION (1)
7,212,527 Method and apparatus for communicating using labeled data packets in a network 10 2001
 
ROBOGROUP T.E.K. LTD (1)
7,904,429 System and method for searching strings of records 2 2005
 
TCL COMMUNICATIONS TECHNOLOGY HOLDINGS LIMITED (1)
7,453,844 Dynamic allocation of channels in a wireless network 45 2002
 
Other [Check patent profile for assignment information] (1)
7,939,479 Dry hand cleaner comprising corncob particles 0 2008

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