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Small-sized simulative telephone interface conference system

A technology of analog telephone and conference system, applied in the direction of subscriber special services, etc., can solve the problems of high cost, many types of operation interfaces, complex equipment and so on

Inactive Publication Date: 2007-03-14
何顺兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a relatively simple structure and low cost in order to overcome the shortcomings of complex equipment, many types of operation interfaces and high cost in the multi-party conference of the existing large-capacity telephone conference equipment applied to the small-capacity analog telephone interface. Inexpensive, relatively small and fully functional small analog telephone interface conference system

Method used

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  • Small-sized simulative telephone interface conference system
  • Small-sized simulative telephone interface conference system
  • Small-sized simulative telephone interface conference system

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing and specific embodiment the present invention is further described:

[0020] Accompanying drawing 1 is the circuit block diagram of an embodiment of the present invention. The specific content and connection relationship of each box is drawn in the figure, among which:

[0021]From this accompanying drawing, it can be seen that the present invention comprises a microprocessor 1, a programmable logic device 2, a programmable logic device 3, a serial EEPROM memory 4, an Ethernet interface chip 5, a SRAM static memory 6, an external line module 7, an internal line Module 8, four-wire module 9, recording interface 10, digital switching chip 11, echo suppression processing 12, conference chip 13, DSP digital signal processing chip 14, DSP digital signal processing chip 15, FLASH memory 16, two-line subscriber line interface row 17. Four-wire subscriber line interface 18, status indicator light interface 19, 220V power supply in...

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PUM

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Abstract

This invention relates to minimum analogue interface meeting system, which comprises the following parts: variable logic parts, programmable logic parts, series EEPROM memory, SRAM static memory, outline module, inner module, four-line module, record interface, meeting chip, FLASH memory, two user interface row, four line user interface, status indication lamp interface, 220V power interface. The invention is characterized by the following: the said minimum analogue interface meeting system composed of Ethernet chip 5, echo repress process, digital exchange chip, DSP digital signal process chip, DSP digital signal process chip and meeting control terminal.

Description

technical field [0001] The present invention relates to a kind of equipment of communication technology, more specifically, the present invention relates to a kind of small analog telephone interface conferencing system of telephone communication, in the International Patent Classification, the present invention should be classified into the H04 category of the Electrical Department. Background technique [0002] At present, the known multi-party teleconferencing equipment is based on the CPCI platform, and its telephone exchange and multi-party conference functions need to pass through the H110 bus. In the small-capacity teleconferencing system, because the teleconferencing system is based on the CPCI platform, the device interface is complicated, the cost is high, and the operating software is also complicated. Contents of the invention [0003] The purpose of the present invention is to provide a relatively simple structure and low cost in order to overcome the shortcom...

Claims

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Application Information

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IPC IPC(8): H04M3/56
Inventor 何顺兰
Owner 何顺兰
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