Compensation time computing method and device for clock difference
AssigneesApex Material Technology Corp., Imagination Broadway Ltd.
InventorsShang-Li Lee, Zong-Bin Liao
Life of this patent
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Abstract
The present invention provides a method for computing compensation time for clock difference between a first chip and a second chip. The method comprises emitting, by the second chip, a pulse with a fixed pulse length to the first chip; measuring, by the first chip, a pulse length of the pulse; computing the compensation time according to the measure pulse length and the fixed pulse length; and setting the compensation time to the second chip.
Claims12
A method for computing a compensation time for clock difference between a first chip and a second chip, the steps of the method comprising:
- emitting, by the second chip, a pulse with a fixed pulse length to the first chip;
- measuring, by the first chip, a pulse length of the pulse emitted by the second chip;
- computing the compensation time according to the measured pulse length and the fixed pulse length;
- and
- setting the compensation time to the second chip.
A method for computing a compensation time for clock difference between a first chip and a second chip, the steps of the method comprising:
- emitting, by the second chip, a first pulse with a first fixed pulse length to the first chip;
- measuring, by the first chip, a first pulse length of the first pulse emitted by the second chip;
- emitting, by the second chip, a second pulse with a second fixed pulse length to the first chip;
- measuring, by the first chip, a second pulse length of the second pulse emitted by the second chip;
- computing, according to an instruction length and an instruction number of the second pulse, a difference to the measured first pulse length;
- adjusting a real pulse length of the second pulse according to the difference;
- computing the compensation time according to the adjusted real pulse length of the second pulse, which is adjusted by the instruction length and/or the instruction number of the second pulse, and the measured second pulse length;
- and
- setting the compensation time to the second chip.
A device for computing a compensation time for clock difference, comprising:
- a first chip;
- and,
- a second chip, for emitting a first pulse enduring a first fixed pulse length and then a second pulse enduring a second fixed pulse length to the first chip;
- wherein the first chip measures a first pulse length of the first pulse and then a second pulse length of the second pulse emitted by the second chip;
- the first chip computes, according to an instruction length and an instruction number of the second pulse, a difference to the measured first pulse length;
- the first chip adjusts a real pulse length of the second pulse according to the difference;
- the first chip computes the compensation time according to the adjusted real pulse length, which is adjusted by the instruction length and/or the instruction number of the second pulse, and the measured second pulse length;
- and
- the first chip sets the compensation time to the second chip.
Dependencies are inferred from the claim text.