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Data converting device and method for converting data zone block

A technology of data block and conversion device, applied in the direction of shaping network and baseband system components in the transmitter/receiver, can solve the problem of low switching rate and DC balance, cannot be made, and does not consider the switching bit 22 and Problems such as the influence of the flag bit 26, to achieve the effect of low switching rate and DC balance

Active Publication Date: 2005-07-20
MEDIATEK INC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] However, when the first processing module 16 calculates the number of switching times and the second processing module 18 calculates the number difference, the influence caused by the switching bit 22 and the flag bit 26 itself is not considered, and the final output data block 14 contains a switching bit 22 and a flag bit 26, which will cause the first processing module 16 to fail to make the best judgment when deciding whether to perform a CABI operation and the second processing module 18 when deciding whether to perform a CTBI operation. The data block 14 generated by the conversion device 12 cannot achieve the best low switching rate and DC balance

Method used

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  • Data converting device and method for converting data zone block
  • Data converting device and method for converting data zone block
  • Data converting device and method for converting data zone block

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Embodiment Construction

[0044] see figure 2 , figure 2 is a schematic diagram of the data conversion device 30 according to the first embodiment of the present invention. The data conversion device 30 of this embodiment is used to convert a first data block (data block) 32 into a second data block 34 . The first data block 32 is composed of a first predetermined number of bits (not shown), denoted as F[7:0], and the second data block 34 is denoted as E[9:0]. The data conversion device 30 includes a control bit module 36 , a processing module 38 and a selection module 40 .

[0045] The control bit module 36 is used for generating a plurality of control bit sets (sets) 42 . Each control bit set 42 in the plurality of control bit sets 42 represents a conversion mode of the first data block 32 . In this embodiment, one control bit set 42 among the plurality of control bit sets 42 is denoted as C[1:0]. The processing module 38 is configured to receive and generate a plurality of first reference val...

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Abstract

The invention provides a data converting device, converting a first data block into a second one. The first data block comprises bits in preset quantities. The data converting device contains control bit module, processing module and selecting module. The control bit module generates many control bit sets, each of which represents a kind of converting mode of the first data block. The processing module receives and generates many first reference values according to the first block and these control bit sets. The selecting module is connected with the processing module and generates a second data block with the help of these first reference values and a preset judgment value.

Description

technical field [0001] The invention relates to a data conversion device and its method, in particular to a data conversion device and its method for converting data blocks. Background technique [0002] In data processing or data transmission, reducing electromagnetic interference (Electromagnetic Interference, EMI) and realizing DC balance (DC balance) have always been important research and development topics. If the EMI is too high, it will interfere with the electronic signals of other circuit systems, causing noise. In some digital transmission systems, two symbols (symbols) are often directly transmitted to represent logic 0 and logic 1 respectively, and are often represented by voltage levels. In order to suppress electromagnetic interference, the transition between logic 0 and logic 1 should not be too frequent. DC balance maintains the sum of the potentials of the electronic signals at approximately zero potential, thus forming a stable reference voltage. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/03
Inventor 吕忠晏
Owner MEDIATEK INC
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