Data width corrector
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorTakefumi Yoshikawa
Life of this patent
Estimating the term…
Abstract
The data width corrector of the invention adjusts the data width appropriately even for data in which cross points have already deviated at the time of input. A data adjusting buffer changes a differential signal received from outside to single-phase receive data and outputs the receive data. A charge pump compares the average time of the HIGH period between the receive data and latch data latched with a latch clock having the same frequency, and supplies the results to the data adjusting buffer. The data adjusting buffer adjusts the duty of the receive data according to the received comparison results.
Claims9
A data width corrector comprising:
- an input circuit for receiving a differential signal from outside, changing the differential signal to single-phase receive data, and outputting the receive data;
- a determination circuit for determining whether or not the HIGH period or the LOW period of the receive data is appropriate;
- and
- an adjustment circuit for adjusting duty of the receive data to make the HIGH period or the LOW period of the receive data appropriate based on the determination results from the determination circuit.
Dependencies are inferred from the claim text.