Electronic device and control method thereof
A technology of electronic equipment and control method, which is applied in the direction of electrical components, radio transmission system, diversity/multi-antenna system, etc., can solve the problems of poor quality, long transmission line, and difficulty in effectively exerting diversity reception characteristics, etc., to deal with loss Bigger effect
Active Publication Date: 2015-11-25
LENOVO (BEIJING) LTD
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Problems solved by technology
Therefore, between the RF signal demodulator and the diversity antenna arranged near the main antenna, the transmission line becomes too long, and the RF signal received by the diversity antenna and input to the RF signal demodulator is affected by loss and noise. The quality deteriorates, making it difficult to effectively utilize the diversity reception feature
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[0012] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following description with reference to the accompanying drawings is provided to help understand the exemplary embodiments of the present invention defined by the claims and their equivalents. It includes various specific details to help understanding, but they can only be regarded as exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Moreover, in order to make the description clearer and more concise, detailed descriptions of well-known functions and configurations in the art will be omitted.
[0013] Reference figure 1 with figure 2 The electronic device according to the embodiment of the present invention will be described. figure 1 It is a functional block diagram showing an electronic device accordi...
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The invention provides an electronic device and a control method thereof, which can, by a simple structure, effectively enhance quality of radio-frequency signals received through an antenna. The electronic device comprises the antenna, a first filter, a second filter, an amplifier, a radio-frequency signal demodulator and a controller. The antenna is used for receiving the radio-frequency signals; the first filter is used for filtering the radio-frequency signals received through the antenna; the second filter is used for filtering the radio-frequency signals filtered by the first filter; the amplifier is used for amplifying the radio-frequency signals filtered by the second filter; the radio-frequency demodulator is used for demodulating the radio-frequency signals amplified by the amplifier; and the controller is connected with the first filter and the second filter, and is configured for controlling working frequency ranges and working modes of the first filter and the second filter based on a frequency band of the radio-frequency signals received by the antenna.
Description
Technical field [0001] The invention relates to electronic equipment and a control method thereof. Background technique [0002] In an electronic device such as a mobile phone, the radio frequency signal received through an antenna is transmitted to the radio frequency signal demodulator inside the electronic device, so that the demodulation process is performed in the radio frequency signal demodulator. [0003] With the thinning of electronic equipment and the diversification of functions, the space inside the electronic equipment is limited, which causes the transmission line between the antenna and the radio frequency signal demodulator to become longer, resulting in the loss of the radio frequency signal received through the antenna. It is large and easily affected by noise, and the quality of the radio frequency signal input to the radio frequency signal demodulator deteriorates. [0004] In particular, in an electronic device equipped with a main antenna and a diversity anten...
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IPC IPC(8): H04B1/00H04B1/52H04B7/08
CPCH04B1/0057H04B1/52H04B7/084
Inventor 马丹
Owner LENOVO (BEIJING) LTD