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Signal processing apparatus

A signal processing and signal processor technology, applied in impedance networks, electrical components, transmission systems, etc., to solve problems such as limiting the size and miniaturization of modules

Inactive Publication Date: 2007-08-01
LG INNOTEK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Implementing it in a single front-end module (FEM) requires splitting the filter function and impedance matching function, which limits the miniaturization of the module size

Method used

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  • Signal processing apparatus
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Embodiment Construction

[0027] Now, description will be made in detail of preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

[0028] FIG. 2 is a schematic block diagram illustrating elements of a signal processing device according to an embodiment of the present invention.

[0029] Referring to FIG. 2 , the signal processing device 100 includes a first phase shifter 120 , a second phase shifter 130 , a PCS duplexer 140 and a DCN duplexer 150 .

[0030] Input terminals of the first phase shifter 120 and the second phase shifter 130 are connected to the antenna 110, and output terminals thereof are connected to the PCS duplexer 140 and the DCN duplexer 150, respectively.

[0031] The output terminals of the PCS duplexer 140 and the DCN duplexer 150 are respectively connected to the PCS signal processor 160 and the DCN signal processor 170 .

[0032] Here, the PCS duplexer 140 may include a transmit filter and a receive filter. The PCS sign...

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Abstract

Provided is a signal processing apparatus. The apparatus comprises a first signal separating unit and a second signal separating unit. The first signal separating unit receives first reception signals via an antenna, allows first transmission signals to be transmitted via the antenna, and blocks second reception signals. The second signal separating unit receives second reception signals via the antenna, allows second transmission signals to be transmitted via the antenna, and blocks first reception signals.

Description

technical field [0001] The invention relates to signal processing devices. Background technique [0002] Recently, mobile communication systems tend to have more complex functions in order to meet various needs of consumers. [0003] Meanwhile, the limitation of the mobile communication terminal is that it should be conveniently carried by consumers through simplification and miniaturization of parts. Therefore, recently, a dual-band terminal has appeared, which has an antenna duplexer for simultaneously receiving signals in two different frequency bands through one antenna and separating the received signals, and the dual-band terminal is sensitive to signals in two different frequency bands. Process them together. [0004] Generally speaking, a dual-band mobile communication terminal includes an antenna duplexer capable of receiving signals in different frequency bands, such as signals in the Code Division Multiple Access (CDMA) frequency band (824MHz-894MHz) and persona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/38H04Q7/32H04B1/16
CPCH03H7/18H03H7/463H04B1/1638H04B1/18
Inventor 曹桢焄
Owner LG INNOTEK CO LTD