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cordless phone system

A technology of cordless phones and telephones, applied in the directions of cordless phones, short-range systems, free space transmission, etc., can solve the problem of difficult to answer and make calls anytime and anywhere, and achieve the effect of ensuring safety and confidentiality and reducing work delays.

Active Publication Date: 2019-02-01
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cordless telephone system to solve the problem that it is difficult to answer and make calls anytime and anywhere in a mobile state in a safe and confidential place and a place not suitable for electromagnetic wave propagation

Method used

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. These more detailed descriptions are intended to help the understanding of the present invention and should not be used to limit the present invention. From the present disclosure it will be apparent to those skilled in the art that the present invention may be practiced without some or all of these specific details. In other instances, well known operating procedures have not been described in detail in order not to obscure the invention.

[0030] figure 1 The configuration of some embodiment cordless telephone systems is schematically shown in . refer to figure 1 , the cordless telephone system of some embodiments comprises: the internal telephone network that is made up of several mother-in-law telephone sets, public switched telephone network (PSTN) 17, the exchange 16 that is connected between internal telephone network and public switched telepho...

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Abstract

A cordless telephone system comprises a house phone network formed by multiple telephones, a public phone switching network, a switch connected between the two networks and a visible light communication network, wherein each telephone is a child-mother telephone consisting of a mother telephone and a child telephone which are in wireless communication connection through the visible light communication network. According to the cordless telephone system, each mother telephone and the corresponding child telephone are communicated on the basis of the visible light communication network, so that security and secrecy of the communication can be guaranteed, and mobile connection can be realized on occasions such as underground facilities, mines, tunnels and the like where electromagnetic wave propagation is not facilitated.

Description

technical field [0001] The invention relates to the field of communication and telephone, in particular to a cordless telephone system. Background technique [0002] Although widely used, wireless communication services represented by mobile phones are strictly limited in many application units and occasions. There are generally two reasons for this. One is that due to the need for security and confidentiality, many units prohibit the use of wireless communication during working hours; the other is that the internal environment of the unit is not suitable for the propagation of electromagnetic waves, such as underground facilities, mines, tunnels, etc. How to provide employees with mobile communication services in the office area has become an issue that has attracted widespread attention under the premise that mobile phones cannot be used. The traditional typical practice is cordless telephony, that is, attaching a wireless handset to a fixed telephone. However, the basis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/116H04M1/737
Inventor 权进国张颢
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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