Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2000-07-26
2004-01-20
Vu, Kim (Department: 2172)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000, C707S793000, C382S232000, C382S305000, C348S222100
Reexamination Certificate
active
06681231
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to media information processing systems and, more particularly, to an integrated system of specialized equipment modules for media information processing.
2. Description of Related Art
The United States Census Bureau TIGER/Line198 files are a computer readable geographic database for the United States. The original sources of the database include U.S. geological survey maps, the 1980 U.S. Census Bureau DIME files, and various other sources. While these geographic files are usable as a base for a geographic information system, they are not recommended for detailed applications which require a high degree of positional accuracy. This is because the positional accuracy of the information contained in the file is limited by the scale of the U.S. Geological Survey maps from which the files are created.
In addition, information in the TIGER/Line files is only as complete and accurate as the source documents used by the U.S. Census Bureau and errors often occur in compilation and translation of information from source documents. Further, the information is only as current as the year in which the source documents were compiled and translated.
Because the information contained in a geographic information system such as the TIGER/Line files must be continually updated to reflect the most recent changes in the information contained therein, it is desirable to provide a method for collecting and processing video and spatial position information in a manner that allows updated attribute information to be tied to previously obtained spatial positional information.
One way in which to acquire accurate spatial position information is through the use of the Global Positioning System (GPS). The Global Positioning System is a network of satellites used to determine location. Since the orbital position of each satellite is known, a GPS receiver on the surface of the earth can accurately measure the time it takes for the transmitted signal to reach the receiver's location on earth. This measurement provides the distance between the satellite and the receiver. To obtain three dimensional positioning, the GPS receiver takes this measurement from each of at least four orbiting satellites. Using geometric principles, the information gathered by the GPS receiver can be used to calculate a tetrahedonal volume defined by four satellites and the receiver, and thus calculate an accurate spatial position on earth.
While the Global Positioning System can provide accurate spatial position information, problems arise when the GPS receiver is not able to receive information from at least four orbiting satellites. This occurs when the GPS receiver is obstructed by geographic features such as canyons or bluffs as well as man-made structures. Problems also arise when a signal transmitted by an orbiting satellite is reflected from a nearby object, giving the GPS receiver one or more incorrect readings from that satellite.
A further problem with the use of the Global Positioning System to provide spatial position information is that spatial position readings are often provided by the GPS receiver at a relatively slow rate; this depends on the quality of the receiver.
Several patents illustrate state-of-the-art distributive and geographic information systems. For example, U.S. Pat. No. 4,709,418 issued on Nov. 24, 1987 to John R. Fox et al. describes a wideband cable network in which several wideband services, such as television or video signals, can be provided simultaneously from a central service position to a remote wideband switch, to which several customers are connected. The central position is connected to the wideband switch by one or more passively tapped optical fibers, through which fixed-time services are provided and the central service position is connected to the wideband switch though one or more dedicated optical fibers, through which a customer can request and receive “on demand” wideband services.
U.S. Pat. No. 5,371,532 issued on Dec. 6, 1994 to Alexander Gelman et al. describes a communications architecture and method for distributing information services.
U.S. Pat. No. 5,418,713 issued on May 23, 1995 to Richard Allen describes an apparatus and method for an on demand data delivery system for the preview, selection, retrieval and reproduction at a remote location of previously recorded or programmed materials.
U.S. Pat. No. 5,528,518 issued on Jun. 18, 1996 to Mark Bradshaw et al. describes a system and method for collecting data to form a geographic information system database.
U.S. Pat. No. 5,584,025 issued on Dec. 10, 1996 to Ronald D. Keithley et al. describes an apparatus and method for interactive communication for tracking and viewing data. The apparatus is used for acquiring and displaying information relating to a specific field of interest. However, the apparatus does not describe specific methods for acquiring the information residing in the database or the manner in which the information will be related.
U.S. Pat. No. 5,633,946 issued on May 27, 1997 to Theodore M. Lachinski et al. describes a method and apparatus for collecting and processing visual and spatial position information from a moving platform. Global Positioning System data is captured separately while video recorders capture moving image sequences from a vehicle mounted apparatus. The Global Positioning System and Greenwich Mean Time data are correlated to video moving images during post video processing. However, Lachinski et al. fails to capture geospatial and video dimensionalities within an image at the time of creation. Moreover, Lachinski et al. fails to provide adequate functionalities necessary for efficient data processing.
U.S. Pat. No. 5,734,719 issued on Mar. 31, 1998 to James T. Tsevdos et al. describes a point-of-sale turnkey kiosk system for supplying digital content. The system employs geographically dispersed servers to provide content to the different kiosk locations. However, the system only provides information to a single computer network and is not developed for convergent delivery of various media data types and data sets to a variety of digital delivery networks.
U.S. Pat. No. 5,736,977 issued on Apr. 7, 1998 to Robert Lee Hughes describes a video real estate information service that includes regional offices that provide information over a computer network to local realty offices. The drawback of this service is that the service fails to calculate the data capacity required for providing video over a data network. Another drawback is that the lengths of the video segments are not identified and, therefore, an unknown capacity of the network must be designed. Moreover, the service only provides information to one class of user and to a single computer network. The service is not developed for convergent delivery of various media data types and datasets to varying digital delivery networks.
U.S. Pat. No. 5,852,810 issued on Dec. 22, 1998 to James P. Sotiroff et al. describes a geographic specific information search system and method. The system is configured to display a graphical map and to allow the user to narrow the geographical search area to the desired region. The system is also configured to accept a query criteria and search a database containing property listings for properties listed in the desired region meeting the entered search criteria.
U.S. Pat. No. 5,867,155 issued on Feb. 2, 1999 to Douglass Williams describes a video on demand distributed network for viewing real estate media. The patent describes distribution over large distributed data networks but never identifies the end use of the data. A drawback of this service is that it provides information to one class of user. The information is also only provided to computer networks and is not developed for convergent delivery of various media data types and datasets to varying digital delivery networks.
U.S. Pat. No. 5,893,113 issued on Apr. 6, 1999 to Timothy McGrath et al. describes a system and method for providing incremental
Chen Chongshan
The Real Estate Cable Network, Inc.
Vu Kim
LandOfFree
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