Projector Communication Terminal Host Address Conversion
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Solution Overview
Problem
Existing communication systems between display devices and communication terminals face difficulties in establishing easy and error-free connections, particularly when inputting IP addresses, often requiring complex DNS conversions and prone to user errors.
Innovation Solution
A communication system where a display device displays host-specifying information in natural language, allowing a communication terminal to convert it back into an IP address for establishing a connection, eliminating the need for explicit network address input and reducing errors through conversion tables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If IP addresses are displayed and inputted for communication establishment, then communication connection can be established, but user errors increase and operation becomes complex
Solution Approach 1:
The patent changes the parameter of address representation from numeric IP addresses to natural language host-specifying words. The display device displays host-specifying information based on the host address (e.g., converting IP address components into readable words), and the communication terminal converts these words back into the original IP address format to establish communication. This parameter transformation makes the operation simpler while maintaining connection reliability.
Solution Approach 2:
The patent introduces host-specifying words as an intermediary between the user and the IP address system. Instead of directly interacting with numeric IP addresses, users interact with natural language words that represent host addresses. The communication terminal acts as a mediator by converting these intermediary words back into the technical IP address format required for communication establishment.
2Adaptability or versatility
If DNS conversion is used to convert host addresses, then communication establishment is possible, but system complexity increases due to requiring DNS servers
Solution Approach 1:
The patent extracts the address conversion function from the external DNS server system and implements it locally within the communication terminal. The terminal stores conversion tables that map host-specifying words to IP addresses, allowing it to perform conversions independently without requiring external DNS infrastructure. This reduces system complexity while maintaining communication establishment capability.
Solution Approach 2:
The communication terminal performs self-service by maintaining its own host address conversion tables and converting inputted host-specifying words into IP addresses without external assistance. The terminal autonomously manages the conversion process, eliminating the need for external DNS servers and reducing overall system complexity.
Data Source
AI summary
A display control unit causes a projector display unit to display host-specifying information based on a first host address of a first IP address allocated to a projector. A communication establishment unit specifies, when the host-specifying information is inputted via an input unit, a third IP address based on the inputted host-specifying information and a second network address of a second IP address allocated to a communication terminal. The communication establishment unit executes communication establishment processing to establish communication between the projector and the communication terminal, using the third IP address.