System and method for digital data communication

• US 6,643,655 B2
• Filed: 06/11/2002
• Issued: 11/04/2003
• Est. Priority Date: 05/06/1998
• Status: Expired due to Term

• Current Assignee: Sovereign Peak Ventures, LLC (Dominion Harbor Enterprises, LLC)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Sonoda, Yasuyuki, Shimoji, Tatsuya, Yamamuro, Keisei, Oashi, Masahiro
• Primary Examiner(s): Alam, Shahid Al
• Application Number:
  US10/166,065
• Publication Number:
  US 20030115222A1
• Time in Patent Office: 511 Days
• Field of Search: 707/1-5, 707/10, 707/100, 707/102, 707/103.R, 707/104.1, 707/202, 345/733, 345/719, 345/716, 345/428, 348/143, 709/220, 709/226, 709/230
• US Class Current: 709/230
• CPC Class Codes: G06F 16/10 File systems; File servers
• CPC Class Codes: H04H 20/106 Receiver-side switching
• CPC Class Codes: H04H 20/16 Arrangements for broadcast or for distribution of identical information repeatedly
• CPC Class Codes: H04H 20/86 Arrangements characterised by the broadcast information itself
• CPC Class Codes: H04L 65/611 for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 65/613 for the control of the source by the destination control signals issued by the client directed to the server or network components specially adapted for selective content distribution H04N21/637
• CPC Class Codes: H04L 65/70 Media network packetisation
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: Y10S 707/99931 Database or file accessing
• CPC Class Codes: Y10S 707/99943 Generating database or data structure, e.g. via user interface
• CPC Class Codes: Y10S 707/99944 Object-oriented database structure
• CPC Class Codes: Y10S 707/99945 Object-oriented database structure processing
• CPC Class Codes: Y10S 707/99953 Recoverability

Abstract

A plurality of HTML files having their file names which may directly be recognized by a filtering part 415 in a data receiver are stored in a data storage part 411. File names of the HTML files are assigned to their headers by a data converter 412, and the files converted and multiplexed are repeatedly transmitted by a data multiplexing and transmitting part 413. A filtering part 415 selects the data having exact match with the filtering condition. A data processing part 419 performs data processing required for generating images, and the images thus generated are displayed on a screen of the display part 421. The data processing part 419 provides a switching command to a filtering conditions varying part 417 when an operator enters a file to be linked through an input part 420. The file to be linked is received as a result of changing the filtering conditions. In this way, the files required can be received and be displayed dynamically without storing all the HTML files linked one another even in temporary basis.

Claims

1. A digital data receiver comprising:

selective receiving means for selectively receiving packetized files having predetermined identifiers in accordance with a selecting condition set therein and for outputting data contained in the packetized files,

received data storing means for storing data contained in the packetized files, each of the packetized files having a same identifier in one independent file basis,

display data generating means for generating display data according to the outputted data, and

selecting condition varying means for varying the selecting condition;

wherein the packetized files thus received are files related to one another, are connected in series as one unitized file and are assigned one identifier including characters capable of being read directly with the selective receiving means,

and wherein the selecting condition varying means extracts characters to be selected by the selective receiving means out of an absolute path assigned to the packetized files and provides the characters to the selective receiving means as the selecting condition so as to selectively receive packetized files that are each assigned the same identifier.

2. The receiver in accordance with claim 1:

wherein the files related one another include at least a reference file formed of self-descriptive data which includes a reference command for referring another file and a referred file which is referred by the reference file; and

wherein the packetized files assigned the absolute path are the referred files.

3. The receiver in accordance with claim 2:

wherein each referred file is distinguished by identifying a delimiter of referred files connected in series.