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US 2007/0182613 A1Published application
Radio communication device
AssigneeSharp Kabushiki Kaisha
InventorAkiteru Deguchi
Life of this patent
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Abstract
A digital signal processor for handling, as a digital signal, data to be transmitted or received and a analog signal processor for handling the data as an analog signal are so arranged as to be spatially separate from each other, and a converter circuit which performs signal format conversion between the digital signal and the analog signal is provided on the analog signal processor side between the digital signal processor and the analog signal processor.
Claims10
A radio communication device comprising:
- a digital signal processor which for handling, as a digital signal, data to be transmitted or received and a analog signal processor for handling the data as an analog signal, which are so arranged as to be spatially separate from each other;
- and a converter circuit which is provided on the analog signal processor side between the digital signal processor and the analog signal processor and which performs signal format conversion between the digital signal and the analog signal.
A radio communication device comprising:
- a digital signal processor for handling, as a digital signal, data to be transmitted or received;
- an analog signal processor for handling the data as an analog signal;
- a converter circuit which is provided between the digital signal processor and the analog signal processor and which performs signal format conversion between the digital signal and the analog signal;
- and
- a board for mounting the digital signal processor, the analog signal processor, and the converter circuit thereon,
- wherein the analog signal processor has a high frequency circuit for transmitting or receiving an analog signal of a high frequency which permits radio transmission, and an RF circuit, for performing frequency conversion of an analog signal, interposed between the high frequency circuit and the converter circuit, and
- wherein part or all of the high frequency circuit is arranged in a first region near a first side of the board, the digital signal processor and the converter circuit are arranged in a second region near a second side located opposite to the first side, and the RF circuit is arranged in a region between the first and second regions.
4 more elements
A radio communication device comprising:
- a digital signal processor for handling, as digital signal, data to be transmitted or received;
- an analog signal processor for handling the data as an analog signal;
- a converter circuit which is provided between the digital signal processor and the analog signal processor and which performs signal format conversion between the digital signal and the analog signal;
- and
- a board for mounting the digital signal processor, the analog signal processor, and the converter circuit thereon,
- wherein the analog signal processor is arranged on a first surface side of the board, the digital signal processor and the converter circuit are arranged on a second surface side of the board which is different from the first surface side,
- wherein the board is a multilayer wiring board having a plurality of wiring layers, and
- wherein a digital ground part is provided in a wiring layer inside the board, an analog ground part is provided in a wiring layer on the first surface side of the digital ground part, and a wiring layer on the first surface side of the analog ground part is assigned as an analog wiring layer.
5 more elements
Dependencies are inferred from the claim text.