Received data compensating device

Abstract

Provided is a compensating device for a received data can be used in a wide application by a single apparatus for various wiring configurations and transmission media. The compensating device provided between a receiver circuit in a physical layer and a processing device utilizing the received data and including a plurality of preprocessing units provided in parallel with each other on an output side of the receiver circuit and each having a filtering function and a sampling function which have different characteristics from each other, a plurality of check units each provided in a next stage of the preprocessing unit and serving to execute a reliability check of the received data in accordance with a frame format of a protocol, a plurality of buffer units each provided in the next stage of the check unit and serving to store the data processed by the check unit, and a data selector for monitoring check results in the check units and selecting and outputting the data of the buffer units having a check result of OK.

Description

technical field [0001] The present invention relates to a received data compensating device, which is interposed between a receiving circuit constituting a physical layer and a processing device utilizing received data, and has a function of repairing received data. Background technique [0002] Figure 8 It shows the structure of the conventional reception data compensation circuit. As shown in the figure, this received data compensating device 100A is provided at a subsequent stage of a receiving IC constituting a physical layer, and includes a preprocessing unit 1 and a checking unit 2 in this example. In addition, the reception IC 200 is mounted on a printed wiring board (PWB), and the reception data compensating device 100A can be appropriately configured by ASIC, FPGA, microcomputer, or the like. As the receiving IC 200 , for example, AD485 of Analog Devices or the like can be used. [0003] In the same figure, the digital signal acquired from the communication trans...

AI Technical Summary

Problems solved by technology

If this problem is solved by improving the wiring performance, even if it is a device with the same function, it is necessary to prepare IC (including one filter circuit) or provide the device itself in multiple forms for each cable or wiring method, and the development cost itself, Increased development and management costs

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