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Cross-platform Jave virtual machine of digital television middleware system

A technology of digital television and middleware, applied in the field of telecommunication, can solve the problems of difficult to cut and transplant, a lot of system resources, huge structure, etc., and achieve the effect of improving development efficiency and saving hardware resources.

Inactive Publication Date: 2009-12-02
商埃曲网络软件(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] 1. The large structure is not suitable for embedded devices, such as our digital TV receiver equipment;
[0018] 2. Not easy to cut and transplant;
[0019] 3. Running requires a lot of system resources such as memory

Method used

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  • Cross-platform Jave virtual machine of digital television middleware system
  • Cross-platform Jave virtual machine of digital television middleware system
  • Cross-platform Jave virtual machine of digital television middleware system

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings.

[0042] figure 1 Among them, the present invention includes an operating system and a device driver based on a hardware platform, and is characterized in that: a platform adaptation layer is set on the basis of the operating system and the device driver; on the basis of the adaptation layer, the middleware is installed using The Java virtual machine in the system and the core class library of the set-top box equipment construct a Java virtual machine composed of at least a class loading subsystem, a security management subsystem, an execution engine and a local method call interface subsystem function module, for digital television The middleware provides a running platform for Java applications and services, and supports local file system and network access at the same time.

[0043] The invention defines a set of Java operating environment and development environment...

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Abstract

The invention discloses a cross-platform Jave virtual machine of a digital television middleware system, belonging to the technical field of communication. The cross-platform Jave virtual machine comprises an operating system and a device drive program based on a hardware platform, wherein a platform adaptation layer is arranged based on the operating system and the device drive program; and a core class library containing a Java virtual machine and a set-top box device installed in the middleware system is utilized based on the platform adaptation layer to build the Jave virtual machine which is at least formed by a class loading sub-system, a security management sub-system, an execution engine and a local method invoking interface sub-system functional module so as to provide an operation platform of the Java application and the service for the digital television middleware. The invention supports the China standard, is easy to transplant to the other standards, and has no relation with the hardware platform, unified resource management, no OS limitation on the quantity of operational Jave threads, more compact system structure, less occupied hardware resource and less limitation on the hardware platform.

Description

technical field [0001] The invention belongs to the technical field of electric communication, and in particular relates to an interactive information processing system used in a digital television broadcasting system. Background technique [0002] Digital TV is a hot spot in the current IT industry. As an information service that will be broadcast nationwide soon, it integrates many technologies such as computers, multimedia, and communication networks. The first generation of digital TV products are mainly manifested in the design and production of digital set-top boxes, and the realization of some simple interactive applications in set-top boxes. The in-depth development of the first generation of products has made people have higher and higher requirements for interactive TV, and at the same time, digital TV operators have also realized the importance of value-added services. Because diversified value-added services can not only attract more new users for them, but also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/455G06F9/46G06F9/45H04N7/16H04N5/00H04N21/443
Inventor 许海华陈德环王贤生
Owner 商埃曲网络软件(上海)有限公司
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