Resources Contact Us Home
Memory storing an integrated index of database records

Image Number 15 for United States Patent #5797008.

A data processing system includes at least one central processor for executing instructions of software programs. In addition the data processing system includes a memory containing a data structure common to the software programs. The common data structure includes a compressed index data structure. The index structure stores index entries referencing a database. The database includes multiple records, each having a unique address in the database. Each index entry includes a word entry if the index entry represents a compressed encoding of a unique portion of information sequentially parsed from the database. The word entry is followed by one or more location entries which reference occurrences of the portions of information. Each index entry includes a metaword entry if the index entry represents a unique attribute of one or more related words. The metaword entry is followed by one or more location entries referencing occurrences of the attributes. The index entries are sequentially organized according to a collating order of the words and metawords, and the location entries organized according to their collating order. The memory also stores a summary data structure including summary entries generated by periodically sampling the location entries. Each summary entry includes an encoding of the word entry associated with the sampled location entry, an encoding of the sampled location entry, and a pointer to a next location entry following the sampled entry.

  Recently Added Patents
Switch, information processing apparatus, and address translation method
Unique identifier per chip for digital audio/video data encryption/decryption in personal video recorders
Communication system and communication apparatus
Protection circuit
Method and apparatus for collecting viewer survey data and for providing compensation for same
Multiple upstream channel descriptor messages pointing to single upstream channel ID for more efficient operation of a DOCSIS system
Pneumatic tire
  Randomly Featured Patents
Stoichiometric lithium cobalt oxide and method for preparation of the same
Use of G-CSF to reduce acute rejection
Ultra-small sample analyzer for internal reflection spectroscopy
Defects annealing and impurities activation in III-nitride compound
Method of manufacturing a magnetic head
Damper mechanism
Disklike recording media, a method for detecting forged disks, an anti-forgery system for performing a true-false judgement based on information collected from the recording media, and a manuf
Optical recorder and laser power control method
Three prong adapter
Aluminum electrolytic capacitor