Pcd with transmitted RF power strength indicator and warning system

A technology of indicating device and communication device, applied in power management, transmission system, communication between multiple stations, etc., can solve the problems of not providing user transmit signal strength indication, limited radio frequency power, etc.

Inactive Publication Date: 2005-06-22
VIA TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Now, personal communication devices such as mobile phones, wireless phones, etc. have provided users with certain information, such as received signal strength indication (RSSI) (US Patent No. 6,356,745 discloses RSSI technology), low battery signal and battery charging status, etc., but none of them provide the user with information about the transmitted signal strength indication (TSSI) (or transmitted power indication) so that the user's mobile phone is at a high transmission power alarm
[0007] Moreover, the transmitted signal strength (TSS) of a mobile phone is not constant, and the radio frequency power it can transmit is limited by special specifications and base station instructions

Method used

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  • Pcd with transmitted RF power strength indicator and warning system
  • Pcd with transmitted RF power strength indicator and warning system
  • Pcd with transmitted RF power strength indicator and warning system

Examples

Experimental program
Comparison scheme
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no. 1 example

[0042] figure 2 It is a block diagram of the first embodiment of a PCD with a radio frequency transmission power intensity indicating circuit according to the present invention. The transmit block 28 can generally be expressed as figure 2 , which includes a modulator (or modulation block) 288 , a power amplifier 282 and a radio frequency transmit power detector 26 . The transmitted baseband signal BBS is modulated in the modulation block 288 , and the modulated output signal MBBS is further processed and sent to the power amplifier 282 or directly to the power amplifier 282 . The signal is then sent to the filter 22 by the power amplifier 282, and finally sent to the antenna 21 for emission. A radio frequency transmit power detector (or called a transmit signal strength detector) is used to detect the transmit signal strength (TSS).

[0043] In other words, the PCD2 of the present invention mainly includes a radio frequency transmitter (TX) 28, a TSS detector 26, a digita...

no. 2 example

[0053] FIG. 3 is a block diagram of a second embodiment of a PCD with a radio frequency transmission power intensity indicating circuit according to the present invention. The transmit signal strength TSS can be determined by reading (sense) the direct current (DC) current consumption of the power amplifier 382 or directly reading the radio frequency signal power, as shown in FIG. 3 .

[0054] The transmit block 38 can generally be shown in FIG. 3 , which includes a modulator 388 , a power amplifier 382 and a radio frequency transmit power detector 36 . The transmitted baseband signal BBS is modulated in the modulation block 388 , and the modulated output signal MBBS is further processed and sent to the power amplifier 382 or directly sent to the power amplifier 382 . The signal is then sent to the filter 32 by the power amplifier 382, ​​and finally sent to the antenna 31 for emission. A radio frequency transmit power detector (or called a transmit signal strength detector) i...

no. 3 example

[0065] Image 6 It is an operation flowchart for indicating the strength of the radio frequency transmission signal in the third embodiment of the present invention. The present invention provides a method for indicating the RF Transmit Signal Strength (TSS) of a transmitter to alert a PCD user of high RF radiation. The method includes the following steps:

[0066] (a) Preset an alarm intensity of the radio frequency transmission signal, as shown in step 602 . For example, taking dBm as the unit, the radio frequency radiation produced by a general GSM mobile phone has a power range from -5 to 33dBm. Figure 5 It is a schematic diagram of setting the alarm intensity of the radio frequency transmission signal in the third embodiment of the present invention. In this example, set 10dBm as the preset alarm intensity.

[0067] (b) As shown in step 604, detect TSS.

[0068] (c) In step 606, check whether the TSS is greater than or equal to the alarm intensity, if so, execute st...

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PUM

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Abstract

The present invention provides a radio communication device, which has a transmitter capable of transmitting radio signals to a corresponding receiver comprising an indicating device and a controller; wherein the indicating device indicates the strength of the radio frequency transmission power of the transmitter; the controller Then detect and output the transmission power intensity indicated by the indicating device; the controller also includes a power detection device, coupled to the transmitter, for detecting the intensity of the radio signal transmitted from the transmitter to the corresponding receiver transmit power intensity.

Description

technical field [0001] The present invention relates to the field of radio communication systems, especially to a personal communication device (Personal Communication Device, referred to as PCD) and a method, by outputting the power intensity of a transmitter of a radio communication terminal device to an indicating device to display the radio communication The strength of the RF transmit power of the terminal device. Background technique [0002] AMPS, PHS, NADC, GSM, DCS, PCS, IS-95, CDMA, WCDMA, DECT, WLAN (802.11), DECT, CT0, CT1, etc., are all familiar standards for wireless networks and personal communication devices in the industry. Personal communication devices (PCDs) include mobile phones, wireless phones, personal digital assistants (PDAs), walkie-talkies, smart phones, and others. All these devices are wireless communication devices (or radio communication devices). Communication between PCDs is established by transmitting and receiving radio-frequency (radio-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/00H04B1/04H04B1/38H04B7/005H04B7/26H04W52/10H04W52/52
CPCH04B1/3838H04B2001/3844H04W52/10H04W52/52
Inventor 施迪民陈淳杰林志峰陈培炜
Owner VIA TECH INC
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