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A simplex intercom mobile terminal and a method for preventing incoming calls from being missed

A mobile terminal and incoming call technology, which is applied to electrical components, telephone communication, broadcast service distribution, etc., can solve the problems of weak confidentiality, prevent call misses, and realize the effect of private communication

Active Publication Date: 2021-03-16
ARMY ENG UNIV OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is the technical problem of missing calls from terminals working on other frequencies and weak confidentiality existing in the prior art

Method used

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  • A simplex intercom mobile terminal and a method for preventing incoming calls from being missed
  • A simplex intercom mobile terminal and a method for preventing incoming calls from being missed
  • A simplex intercom mobile terminal and a method for preventing incoming calls from being missed

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Embodiment 1

[0051] This embodiment provides a simplex intercom mobile terminal, such as Figure 4 , adding some circuit units to the typical structure of the simplex intercom mobile terminal, while supporting private communication between users (networks), it can prevent missing calls from other simplex intercom mobile terminals, so that users only need to carry a single A simplex intercom mobile terminal can communicate with several simplex intercom mobile terminals working on other frequencies.

[0052] like Figure 4 As shown, the present invention improves the hardware structure of a typical simplex intercom mobile terminal, and adds a frequency scanning preset unit, which can be added as an independent hardware module or as a function item added to the original control unit for setting The scanning frequency of the receiving unit, the scanning frequency may be the entire working frequency band of the simplex intercom mobile terminal or several continuous frequency points or several ...

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Abstract

The invention relates to a simplex intercom mobile terminal and a method for preventing missed calls from incoming calls. It solves the technical problem of missed calls from terminals working at other frequencies and weak confidentiality. By adopting an augmented second receiving unit, frequency A scanning preset unit and a number storage unit; the control unit is bidirectionally connected to the frequency scanning preset unit, and the output of the frequency scanning preset unit is connected to the second receiving unit to complete data transmission, and the output of the second receiving unit is connected to the The number storage unit is connected, and the number storage unit is bidirectionally connected to the control unit; the technical scheme that the control unit is also bidirectionally connected to the transmitting unit and bidirectionally connected to the first receiving unit solves this problem well, and can be used for simplex Intercom mobile communication.

Description

technical field [0001] The invention relates to the field of mobile communication terminals, in particular to a simplex intercom mobile terminal and a method for preventing incoming calls from being missed. Background technique [0002] The intercom mobile terminal is a special mobile communication terminal, which is widely used in various industries, such as bus, railway, police, army, etc., because of its low equipment price, no need for additional communication costs, and easy operation. The biggest difference between it and the well-known public cellular mobile communication system terminals is that it can realize long-distance communication between users without network facilities. In order to solve the contradiction between power consumption and communication distance requirements and working hours, as well as reduce the waste of frequency resources and avoid the need for duplexers, intercom mobile terminals often use simplex communication methods to achieve two-way co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M1/72403H04W4/10
CPCH04W4/10H04M1/72403
Inventor 施志勇蔡惠芬张学平刘海波李成俊王延德曹献元
Owner ARMY ENG UNIV OF PLA
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