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VoIP simulation telephony adapter implemented by DSP

A technology for simulating telephones and adapters, applied in telephone communication, telephone structure, circuits, etc., can solve the problems of wasting processor resources, system complexity, and high cost, saving development costs, reducing system complexity, and reducing power consumption Effect

Inactive Publication Date: 2010-05-12
INST OF ACOUSTICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the complex system existing in the prior art, high cost, waste of processor resources, high power consumption and other deficiencies, and provide a VoIP analog telephone adapter that only uses a single DSP to realize

Method used

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  • VoIP simulation telephony adapter implemented by DSP
  • VoIP simulation telephony adapter implemented by DSP
  • VoIP simulation telephony adapter implemented by DSP

Examples

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0021] refer to figure 1 As shown, the system hardware architecture includes: a digital signal processor 11; a reset logic circuit 12 connected to the digital signal processor (DSP) 11, a clock control logic circuit 13, a subscriber line access control circuit 14, a JTAG interface 15, Host interface 16, network interface control circuit 17; external program storage 18 and external data storage 19 connected to the external storage bus of the digital signal processor 11. The network interface controller 17 is connected with an RJ45 interface for connecting to the Internet. The host interface 16 is connected with a USB adapter for connecting to the host, and then receiving data from the host for system upgrade or data restoration. The subscriber line access control circuit 14 includes an RJ11 interface for connecting to an analog telephone or fax...

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PUM

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Abstract

This invention discloses a VoIP analog phone adaptor realized by single DSP only including: a digital signal processor, a reset logic circuit connected with the processor, a clock control logic circuit, a user line access control circuit, a JTAG interface, a host interface, a network interface controller, an exterior program storage and an exterior data storage connected to the exterior storage bus of the processor.

Description

technical field [0001] The present invention relates to a VoIP (VoIP: Voice over Internet Protocol, Voice over Internet Protocol) analog telephone adapter, in particular to a VoIP analog telephone adapter realized by a single DSP (Digital Signal Processing, digital signal processor). Background technique [0002] The telephone is the most important daily communication tool for people. In the past, telephone communication was through a circuit switching network, such as PSTN (Public Switched Telephone Network, Public Switched Telephone Network). Now, with the development of computer networks, a considerable part of telephone communication is through packet switching networks, such as IP (Internet Protocol) networks. There are three main ways to use IP phones. One way is to install VoIP terminal software and hardware equipment on the computer, connect to the computer network, and make IP calls. This requires a computer, which is obviously not easy to use at any time. Anothe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M1/02H04M11/06H01R31/06
Inventor 王劲林邓峰张武齐向东曾学文朱晓东叶晓舟张建东武晓华
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI