Multi-language domain name service

• US 6,314,469 B1
• Filed: 02/26/1999
• Issued: 11/06/2001
• Est. Priority Date: 02/26/1999
• Status: Expired due to Term

• Current Assignee: I-DNS.Com International, Inc.
• Original Assignee: I-Dns Net International
• Inventors: Seng, Ching Hong, Tay, Edward S., Subbiah, Subramanian, Tan, Juay Kwang, Lim, Kuan Siong, Tan, Tin-Wee, De Silva, Don Irwin Tracy, Leong, Kok Yong
• Primary Examiner(s): Maung, Zarni
• Assistant Examiner(s): Najjar, Saleh
• Application Number:
  US09/258,690
• Time in Patent Office: 984 Days
• Field of Search: 709/227, 709/228, 709/238, 709/245, 709/225, 709/223, 704/8, 704/9, 707/10, 707/100, 707/542, 345/467, 345/469, 370/351, 370/352, 370/353, 370/354, 370/475
• US Class Current: 709/245
• CPC Class Codes: G06F 40/126 Character encoding
• CPC Class Codes: H04L 2101/32 containing non-Latin characters, e.g. Chinese domain names
• CPC Class Codes: H04L 61/301 Name conversion
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]

Abstract

A multilingual Domain Name System allows users to use Domain Names in non-Unicode or ASCII encodings. An international DNS server (or iDNS server) receives multilingual DNS requests and converts them to a format that can be used in the conventional Domain Name System. When the iDNS server first receives a DNS request, it determines the encoding type of that request. It may do this by considering the bit string in the top-level domain (or other portion) of the Domain Name and matching that string against a list of known bit strings for known top-level domains of various encoding types. One entry in the list may be the bit string for “.com” in Chinese BIG5, for example. After the iDNS server identifies the encoding type of the Domain Name, it converts the encoding of the Domain Name to Unicode. It then translates the Unicode representation to an ASCII representation conforming to the universal DNS standard. This is then passed into a conventional Domain Name System, which recognizes the ASCII format Domain Name and returns the associated IP address.

Claims

1. A method, implemented on an apparatus, of detecting the linguistic encoding type of a digitally represented domain name, the method comprising:

receiving the digital sequence of a prespecified portion of the digitally represented domain name;

matching said digital sequence from the domain name with a known digital sequence from a collection of known digital sequences, each associated with a particular linguistic encoding type, and the collection including known digital sequences for at least two different linguistic encoding types; and

identifying an encoding type associated with the known digital sequence matching the digital sequence from the domain name.

2. The method of claim 1, further comprising receiving a DNS request containing the digitally represented domain name.

3. The method of claim 1, wherein the prespecified portion of the digitally represented domain name is a minimum code resolving string in the domain name.

4. The method of claim 1, further comprising transforming the format of the digital sequence of the digitally represented domain name prior to matching that digital sequence.

5. The method of claim 1, wherein the collection of known digital sequences is provided in a table containing records having attributes including known digital sequences and encoding types.

6. The method of claim 5, wherein the table includes records having at least the following encoding types:

ASCII, BIG5, GB2312, shift-JIS, EUC-JP, KSC5601, and extended ASCII.

7. The method of claim 5, wherein identifying the encoding type comprises identifying the encoding type of a record having the matching known digital sequence.

8. The method of claim 1, wherein at least two known digital sequences match the digital sequence from the domain name, and further comprising:

receiving the digital sequence of a second portion of the digitally represented domain name; and

matching the digital sequence of the second portion with a known digital sequence from the collection of known digital sequences.

9. The method of claim 2, further comprising:

identifying a root level DNS server responsible for resolving root level domains of the identified encoding type; and

transmitting the DNS request to the root level DNS server.

10. The method of claim 9, further comprising, prior to transmitting the DNS request, converting the domain name'"'"'s digital sequence from the identified encoding type to a DNS encoding type compatible with DNS protocol.

11. The method of claim 10, wherein the DNS encoding type is ASCII or a universal linguistic encoding type.

12. The method of claim 10, wherein converting the domain name'"'"'s digital sequence comprises:

converting the domain name'"'"'s digital sequence from the identified encoding type to a universal linguistic encoding type; and

converting the domain name'"'"'s digital sequence from the universal linguistic encoding type to a DNS encoding type compatible with the DNS protocol.

13. A computer program product comprising a machine readable medium on which is provided program instructions for performing a method of detecting the linguistic encoding type of a digitally represented domain name, the method comprising:

receiving the digital sequence of a prespecified portion of the digitally represented domain name;

matching said digital sequence from the domain name with a known digital sequence from a collection of known digital sequences, each associated with a particular linguistic encoding type, and the collection including known digital sequences for at least two different linguistic encoding types; and

identifying an encoding type associated with the known digital sequence matching the digital sequence from the domain name.

14. The computer program product of claim 13, wherein the collection of known digital sequences is provided in a table containing records having attributes including known digital sequences and encoding types.

15. The computer program product of claim 13, further comprising program instructions for the following:

receiving a DNS request containing the digitally represented domain name;

identifying a root level DNS server responsible for resolving root level domains of the identified encoding type; and

transmitting the DNS request to the root level DNS server.

16. The computer program product of claim 15, further comprising program instructions for the following:

prior to transmitting the DNS request, converting the domain name'"'"'s digital sequence from the identified encoding type to a DNS encoding type compatible with DNS protocol.