Transmitting circuit, receiving circuit, transmitting-receiving circuit and electro-optical apparatus
US6636071B1 · kind B1 · utility
11Cited by
5References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 7, 2000 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Sep 7, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/017545
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A circuit for transmitting/receiving a logic signal through a capacitor is provided, which prevents signal delay and malfunction on the receiving circuit side. The power supply voltage of the buffer that transmits the logic signal in the transmitting circuit is enhanced to be larger than the power supply voltage of the buffer that inputs the logic signal in the receiving circuit. As a result, the amplitude of the logic signal at the input point is expanded from the clipping level according to the protection diodes, so that the signal delay, as well as the malfunction are prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.