Single antenna GSM/PHS dual mode mobile telephone

A dual-mode mobile phone, single-antenna technology, used in radio/induction link selection arrangements, electrical components, transmission systems, etc., can solve problems such as deficiencies

Inactive Publication Date: 2006-07-26
INVENTEC(NANJING) TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the GSM mobile phone and the PHS mobile phone are merged into one, if the dual-mode mobile phone designed and produced can still maintain t...

Method used

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  • Single antenna GSM/PHS dual mode mobile telephone
  • Single antenna GSM/PHS dual mode mobile telephone
  • Single antenna GSM/PHS dual mode mobile telephone

Examples

Experimental program
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Embodiment Construction

[0020] The present invention is a kind of GSM and PHS dual-mode mobile phone that adopts single antenna, refer to figure 1 As shown, the dual-mode mobile phone 10 is only provided with a single antenna 201, which enables the dual-mode mobile phone to enter the GSM or PHS single-frequency operating mode according to the selection, and realizes detection and transmission and reception of 900MHz or 1900M frequency bands in the GSM or PHS single-frequency operating mode. signal, or make the dual-mode mobile phone switch to the 900M or 1900MHz frequency range according to the strength of GSM or PHS signals in different frequency bands according to the pre-set sequence, so that the dual-mode mobile phone can use the single antenna , make a call or send and receive signals in a suitable working mode.

[0021] In a preferred embodiment of the present invention, referring back to Figure 1, the dual-mode mobile phone 10 includes a central processing unit 11, and the central processing u...

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Abstract

This invention relates to one GSM or PHS double mode cell phone by use of single antenna, which is located with only one antenna through one antenna set to connect to one GSM and PHS module sets connected with one central process unit to receive the control signal from the central process unit and to switch from other set module to make the cell phone select to enter GSM or PHS mode to realize the testing and receiving within range of 900M or 1900MHx frequency. Besides, the antenna set can pre-set order according to the different frequency section signal intensity to select work mode and to switch to 900M or 1900MHz to get the suitable work mode.

Description

technical field [0001] The invention relates to a mobile phone with both GSM and PHS dual-frequency working modes, especially a mobile phone that can detect and send and receive 900MHz or 1900M frequency band signals through a single antenna under the GSM and PHS dual-frequency working modes, so that users can use It is a dual-mode mobile phone that can make calls or send and receive signals according to the suitable working mode. Background technique [0002] In recent years, a personal hand-phone system (Personal Handy-phone System, hereinafter referred to as PHS) derived from the second-generation digital wireless telephone system has received great attention in the wireless communication market. PHS mobile phones are mainly used in slow Low-power mobile phones for high-speed mobile places, not only can be used in underground shopping malls and subways, but also light and handy, durable for long-time calls, and can also transmit signals at high speed. Although this techn...

Claims

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Application Information

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IPC IPC(8): H04B1/40H04Q7/32H04B1/3827
Inventor 赖振兴樊晓龙张红斌刘宁
Owner INVENTEC(NANJING) TECH CO LTD
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